Joyce Illustrated Plant List

2022 Andy Ford

2008 Forest & Kim Starr

2014 Richard Chasey

Abies amabilis Lovely fir, Pacific silver fir, Cretan Mallow

• rare native
Tree

2016 Dana York

2021 Scot Loring

2022 Dana York

Abies bracteata Bristlecone fir, Santa lucia fir

• rare native
Tree

2014 Dan Cohn

2019 Susan McDougall

2009 Kristina Walker

Abies concolor Balsam fir, White fir, White silver fir

native
Tree

2016 Richard Spjut

Geoff Burleigh

2021 David popp

Abies concolor ssp. concolor Balsam fir, White fir, White silver fir

native
Tree

2016 Richard Spjut

Geoff Burleigh

2021 David popp

Abies concolor ssp. lowiana Balsam fir, White fir, White silver fir

native
Tree

2016 Richard Spjut

Geoff Burleigh

2021 David popp

Abies concolor var. lowiana Balsam fir, White fir, White silver fir

native
Tree

2016 Richard Spjut

Geoff Burleigh

2021 David popp

Abies grandis Grand fir

native
Tree

2022 Nicole Forte

2022 R.A. Chasey

2022 Nicole Forte

Abies lasiocarpa Subalpine fir

native
Tree

2022 Dana York

2023 Cynthia Powell

Abies lasiocarpa ssp. arizonica Subalpine fir

native
Tree

2022 Dana York

2023 Cynthia Powell

Abies lasiocarpa ssp. lasiocarpa Subalpine fir

native
Tree

2022 Dana York

2023 Cynthia Powell

Abies lasiocarpa var. arizonica Subalpine fir

native
Tree

2022 Dana York

2023 Cynthia Powell

Abies lasiocarpa var. lasiocarpa Alpine fir, Subalpine fir

• rare native
Tree

2022 Dana York

2023 Cynthia Powell

Abies magnifica Balsam fir, California red fir, Magnificent silver fir

native
Tree

2022 Lizzy Wenk

2019 Bob Sweatt

Abies magnifica var. magnifica California red fir

native
Tree

2022 Lizzy Wenk

2022 Justin Baldwin

2018 Greg Kareofelas

Abies magnifica var. shastensis Shasta red fir

native
Tree

2012 Julie A. Kierstead

2021 Anya Beale

2022 Dana York

Abies procera Noble fir

native
Tree

Nick Kurzenko

2002 Timothy D. Ives

Abronia alpina Ramshaw meadows abronia

• rare native
Perennial herb

2021 Peri lee

Abronia gracilis Graceful sand verbena, Slender sand verbena

native
Perennial herb

2022 Zoya Akulova

Abronia latifolia Coastal sand verbena, Sand verbena, Yellow sand verbena

native
Perennial herb

2016 Steve Matson

Abronia maritima Red sand verbena, Sticky sand verbena

• rare native
Perennial herb

2018 Ron Vanderhoff

2022 Irene Rosen

2020 David Krause

Abronia nana Dwarf sand verbena

native
Perennial herb

2010 Steve Matson

Abronia nana var. covillei Coville's dwarf sand verbena

• rare native
Perennial herb

2010 Steve Matson

Abronia pogonantha Mohave sand verbena, Mojave sand verbena

native
Annual herb

2019 Matt Berger

2017 John Doyen

2017 Adam Chasey

Abronia turbinata Trans montane sand verbena, Transmontane sand verbena

native
Annual herb

2020 Steve Matson

Abronia umbellata Beach sand verbena, Pink sand verbena, Purple sand verbena

native
Perennial herb

2021 Meghan Lindt

2018 Ken Hickman

2018 Mary Conway

Abronia umbellata var. breviflora Pink sand-verbena

• rare native
Perennial herb

2021 Scot Loring

2019 Lenihan Mazur

Abronia umbellata var. umbellata Beach sand verbena

native
Perennial herb

2014 Steve Matson

Abronia villosa Desert sand verbena, Hairy sand verbena

native
Annual herb

2020 David Greenberger

2013 Keir Morse

2021 Emily Sluiman

Abronia villosa var. aurita Desert sand verbena

• rare native
Annual herb

2023 Don Rideout

2013 Keir Morse

Abronia villosa var. villosa Desert sand verbena, Hairy sand verbena

native
Annual herb

2022 Mike Russler

2019 Matt Berger

2016 Diane Etchison

Abutilon abutiloides shrubby Indian mallow

• rare native
Perennial herb

2014 Wynn Anderson

Abutilon palmeri Palmer's abutilon, Palmer's indian mallow

native
Perennial herb

2018 Ron Vanderhoff

Abutilon parvulum Dwarf indian mallow, Little abutilon

• rare native
Perennial herb

2005 James M. Andre

Abutilon theophrasti Velvet leaf, Velvetleaf

non-native
Annual herb

2022 Morgan Stickrod

2023 Donald Burk

Acacia baileyana Bailey acacia, Cootamundra wattle

• invasive non-native
Tree, Shrub

2020 Jutta Burger

2020 John Rawlings

Acacia cyclops Coastal wattle, Cyclops acacia

• invasive non-native
Shrub

2018 Ron Vanderhoff

2021 Ron Vanderhoff

Acacia dealbata Silver wattle

• invasive non-native
Tree, Shrub

2019 Gary McDonald

2023 Ron Vanderhoff

2019 Gary McDonald

Acacia decurrens Black wattle, Green wattle, Wattle

non-native
Tree

2018 Thomas Reyes

Acacia farnesiana Sweet acacia

non-native
Tree

2006 Steve Matson

2017 Wynn Anderson

2006 Chet Blackburn

Acacia koa Koa

non-native
Tree

Acacia longifolia Sydney golden wattle

non-native
Tree

2023 Asa B Spade

2018 Ron Vanderhoff

Acacia mearnsii Black wattle

non-native
Tree, Shrub

2013 Ron Vanderhoff

2019 Ron Vanderhoff

Acacia melanoxylon Blackwood acacia

• invasive non-native
Tree

2022 Julian Geoghegan

2019 Julian Geoghegan

2019 Devon Jackson

Acacia paradoxa Kangaroo thorn

• invasive non-native
Shrub

2022 Rocky Bajada

2022 Katherine Stratton

Acacia pendula Myall acacia

non-native
Tree

2023 Ron Vanderhoff

Acacia podalyriifolia Pearl wattle

non-native
Tree, Shrub

2015 Ron Vanderhoff

2013 Ron Vanderhoff

2023 Ron Vanderhoff

Acacia pycnantha Golden wattle

• invasive non-native
Tree, Shrub

2023 Ron Vanderhoff

2020 Ron Vanderhoff

Acacia redolens Bank catclaw

non-native
Tree, Shrub

2020 Ron Vanderhoff

2019 Jutta Burger

2019 Andy Jones

Acacia retinodes Ever blooming acacia, Everblooming acacia

non-native
Tree

2016 Ron Vanderhoff

2023 Ron Vanderhoff

Acacia saligna Orange wattle

non-native
Tree, Shrub

2016 Ron Vanderhoff

2020 Ron Vanderhoff

Acacia verticillata Prickly moses, Star acacia

non-native
Tree, Shrub

2015 Chris Jaster

2018 Julian Geoghegan

2015 Chris Jaster

Acaena pinnatifida California sheepburr

native
Perennial herb

2020 R.A. Chasey

2022 Ken-ichi Ueda

2020 R.A. Chasey

Acaena pinnatifida var. californica California sheepburr

native
Perennial herb

2020 R.A. Chasey

2022 Ken-ichi Ueda

2020 R.A. Chasey

Acaena novae-zelandiae Biddy biddy

• invasive non-native
Shrub (stem succulent)

2018 Hayley Ross

2013 Ramona Robison

2018 Hayley Ross

Acaena pallida Pale biddy-biddy

non-native
Perennial herb

2011 Eric Wrubel

Acalypha californica California acalypha, California copperleaf

native
Shrub

2020 David Greenberger

2019 Ron Vanderhoff

2020 Matt Berger

Acamptopappus shockleyi Shockley's goldenhead

native
Shrub

2011 Steve Matson

2020 Steve Matson

Acamptopappus sphaerocephalus Rayless goldenhead

native
Shrub

2003 Aaron Schusteff

2019 Ron Vanderhoff

2021 Mike Russler

Acamptopappus sphaerocephalus var. hirtellus Hairy goldenhead, Rayless goldenhead, Round headed goldenhead

native
Shrub

Acamptopappus sphaerocephalus var. hirtellus

2003 James M. Andre

2012 James M. Andre

1978 Dean Wm. Taylor

Acamptopappus sphaerocephalus var. sphaerocephalus Rayless goldenhead

native
Shrub

Acamptopappus sphaerocephalus var. sphaerocephalus

2019 Susan McDougall

2003 James M. Andre

2010 Neal Kramer

Acanthomintha duttonii San mateo thorn mint

• rare native
Annual herb

2011 Aaron Schusteff

2023 Morgan Stickrod

2013 Lech Naumovich

Acanthomintha ilicifolia San Diego thorn mint

• rare native
Annual herb

2023 Eric Koberle

2023 Keir Morse

Acanthomintha lanceolata Santa clara thorn mint

• rare native
Annual herb

2019 David Greenberger

2022 Mike Russler

2020 Joey Santore

Acanthomintha obovata ssp. cordata Heart leaved thorn mint, Heartleaf thorn mint

• rare native
Annual herb

2020 Robert Ferber

2023 Morgan Stickrod

2020 Robert Ferber

Acanthomintha obovata ssp. obovata San benito thorn mint

• rare native
Annual herb

2023 Mike Russler

2022 Mike Russler

Acanthoscyphus parishii var. abramsii Abrams' oxytheca

• rare native
Annual herb

2007 Steve Matson

Acanthoscyphus parishii var. cienegensis Cienega seca oxytheca

• rare native
Annual herb

Acanthoscyphus parishii var. cienegensis

2018 Keir Morse

Acanthoscyphus parishii var. goodmaniana Cushenbury oxytheca

• rare native
Annual herb

Acanthoscyphus parishii var. goodmaniana

2017 Thomas Egan

2008 Erin Shapiro

Acanthoscyphus parishii var. parishii Parish's oxytheca

• rare native
Annual herb

2021 Rico Ramirez

2020 Rico Ramirez

Acanthus mollis Bear's breech

non-native
Perennial herb

2015 Jorg & Mimi Fleige

2018 Elliot Gunnison

2016 Neal Kramer

Acer campestre Hedge maple

non-native
Tree, Shrub

2008 Dr. Amadej Trnkoczy

2006 Ivo Petrich

2020 Zoya Akulova

Acer circinatum Vine maple

native
Tree, Shrub

2016 Steve Matson

Acer glabrum Mountain Maple

native
Tree, Shrub

2013 Steve Matson

2018 Matt Berger

Acer glabrum var. diffusum Mountain maple, Rocky mountain maple

native
Tree, Shrub

2007 Steve Matson

Acer glabrum var. douglasii Douglas maple

native
Tree, Shrub

2018 Susan McDougall

2017 Thayne Tuason

2018 Susan McDougall

Acer glabrum var. glabrum Rocky mountain maple

native
Tree, Shrub

2013 Steve Matson

Acer glabrum var. torreyi Rocky mountain maple

native
Tree, Shrub

2013 Steve Matson

Acer macrophyllum Big leaf maple, Bigleaf maple

native
Tree

2016 Steve Matson

2018 Steve Matson

Acer negundo Boxelder

native
Tree

2019 Robert Sweet

2016 John H Malpas

2019 Ron Vanderhoff

Acer negundo ssp. californica Boxelder

native
Tree

2019 Robert Sweet

2016 John H Malpas

2019 Ron Vanderhoff

Acer negundo var. californicum Boxelder

native
Tree

2019 Robert Sweet

2016 John H Malpas

2019 Ron Vanderhoff

Acer negundo var. negundo Boxelder

native
Tree

2019 Robert Sweet

2016 John H Malpas

2019 Ron Vanderhoff

Acer palmatum Japanese maple

non-native
Tree

2005 Louis-M. Landry

2020 Zoya Akulova

2005 Louis-M. Landry

Acer platanoides Norway maple

non-native
Tree, Shrub

2010 Phil Pullen

2016 Zoya Akulova

2004 Dr. Amadej Trnkoczy

Acer rubrum Red maple

non-native
Tree

2010 Louis-M. Landry

2013 Ramona Robison

2005 George Rembert

Acer saccharinum Silver maple

non-native
Tree

2016 Dave Brandt

2010 Louis-M. Landry

2016 Dave Brandt

Acer saccharum Sugar maple

non-native
Tree

2016 Keir Morse

2005 Joseph Dougherty/ecology.org

2006 Louis-M. Landry

Achillea filipendulina Fernleaf yarrow, Gold Yarrow

non-native
Perennial herb

2019 Zachary Snider

2022 Jeanne Hamrick

Achillea lanulosa Common yarrow

native
Perennial herb

2022 Andy Ford

2020 Bob Sweatt

2018 Gary McDonald

Achillea millefolium Common yarrow

native
Perennial herb

2022 Andy Ford

2020 Bob Sweatt

2018 Gary McDonald

Achillea millefolium var. alpicola Common yarrow

native
Perennial herb

2022 Andy Ford

2020 Bob Sweatt

2018 Gary McDonald

Achillea millefolium var. occidentalis Common yarrow

native
Perennial herb

2022 Andy Ford

2020 Bob Sweatt

2018 Gary McDonald

Achillea tomentosa Common yarrow

native
Perennial herb

2022 Andy Ford

2020 Bob Sweatt

2018 Gary McDonald

Achlys californica California deer foot, Deer's foot

native
Perennial herb

2007 Gerald Carr

Achlys triphylla Sweet after death

native
Perennial herb

2020 Steve Conger

2021 Dana York

2019 Cynthia Powell

Achlys triphylla ssp. triphylla Deer foot, Three-leaf deer foot

native
Perennial herb

2023 Sam Abercrombie

2014 John Doyen

2011 Vernon Smith

Achyrachaena mollis Blow-Wives

native
Annual herb

2015 Diane Etchison

2022 Mike Russler

Achyronychia cooperi Frost mat, Onyxflower

native
Annual herb

2010 Steve Matson

2020 Matt Berger

2019 Matt Berger

Acleisanthes longiflora Angel trumpets, Angeltrumpet, Yerba de la rabia

• rare native
Perennial herb

2013 Richard Spellenberg

2017 Wynn Anderson

2017 Keir Morse

Acleisanthes nevadensis Desert wing-fruit

• rare native
Perennial herb

2005 James M. Andre

2020 Neal Kramer

2005 James M. Andre

Selinocarpus nevadensis Desert wing-fruit

• rare native
Perennial herb

2005 James M. Andre

2020 Neal Kramer

2005 James M. Andre

Acmispon americanus American bird's foot trefoil, Spanish lotus

native
Annual herb

2019 Rachelle Gray

2013 Arcangelo Wessells

2020 Bob Sweatt

Lotus unifoliolatus American bird's foot trefoil, Spanish lotus

native
Annual herb

2019 Rachelle Gray

2013 Arcangelo Wessells

2020 Bob Sweatt

Acmispon americanus var. americanus American bird's foot trefoil, American trefoil, Spanish lotus

native
Annual herb

2015 Steve Matson

Lotus purshianus var. purshianus American bird's foot trefoil, American trefoil, Spanish lotus

native
Annual herb

2015 Steve Matson

Lotus unifoliolatus var. unifoliolatus American bird's foot trefoil, American trefoil, Spanish lotus

native
Annual herb

2015 Steve Matson

Acmispon argophyllus Silver birds foot trefoil

native
Perennial herb

2014 Steve Matson

2016 Steve Matson

Acmispon argophyllus var. adsurgens San clemente island bird's-foot trefoil

• rare native
Perennial herb

1902 Dylan Neubauer

2011 Dylan Neubauer

Acmispon argophyllus var. argenteus Channel islands silver lotus

native
Perennial herb

2017 B.J. Dion

2011 Neal Kramer

Acmispon argophyllus var. argophyllus Southern california silver lotus

native
Perennial herb

2014 Steve Matson

Acmispon argophyllus var. fremontii Fremont's silver lotus

native
Perennial herb

2016 Steve Matson

Lotus argophyllus var. fremontii Fremont's silver lotus

native
Perennial herb

2016 Steve Matson

Acmispon argophyllus var. niveus Santa cruz island bird's-foot trefoil

• rare native
Perennial herb

2014 Steve Matson

Acmispon argyraeus Canyon birdsfoot trefoil

native
Perennial herb

2008 Steve Matson

2019 Matt Berger

2014 Garth Wadsworth

Lotus wrightii Canyon birdsfoot trefoil

native
Perennial herb

2008 Steve Matson

2019 Matt Berger

2014 Garth Wadsworth

Acmispon argyraeus var. argyraeus Canyon lotus

native
Perennial herb

2020 Matt Berger

Acmispon argyraeus var. multicaulis Canyon Bird's-foot Trefoil, Scrub Lotus

• rare native
Perennial herb

2008 Steve Matson

2012 Keir Morse

Acmispon brachycarpus hill lotus

native
Annual herb

2005 Steve Matson

2018 Steve Matson

Lotus humistratus hill lotus

native
Annual herb

2005 Steve Matson

2018 Steve Matson

Acmispon cytisoides Bentham's deerweed

native
Perennial herb

2015 David Wolfson

2019 Rebecca Schoenenberger

2012 Terrence Gosliner

Acmispon nevadensis Sierra lotus

native
Perennial herb

2018 Steve Matson

Acmispon nevadensis var. davidsonii Davidson's sierra nevada lotus

native
Perennial herb

2021 Arlee Montalvo

Acmispon nevadensis var. nevadensis Sierra Nevada lotus

native
Perennial herb

2018 Steve Matson

Acmispon dendroideus var. dendroideus Island broom

• rare native
Shrub

2020 David Greenberger

2003 Keir Morse

2010 Gary A. Monroe

Lotus dendroideus var. dendroideus Island broom

• rare native
Shrub

2020 David Greenberger

2003 Keir Morse

2010 Gary A. Monroe

Acmispon dendroideus var. traskiae San clemente island lotus

• rare native
Shrub

2011 Dylan Neubauer

Acmispon dendroideus var. veatchii San miguel island deerweed

• rare native
Shrub

2006 Steve Matson

Acmispon denticulatus Toothed lotus

native
Annual herb

2017 Gerald Carr

Acmispon glaber Deerweed

native
Perennial herb

2021 Ron Vanderhoff

2019 Diane Etchison

2020 Ron Vanderhoff

Acmispon glaber var. brevialatus Short winged deerweed

native
Perennial herb

2020 Ron Vanderhoff

2018 Michelle Tollett

2019 Ron Vanderhoff

Acmispon glaber var. glaber Deerweed

native
Perennial herb

2020 Ron Vanderhoff

Lotus scoparius var. scoparius Deerweed

native
Perennial herb

2020 Ron Vanderhoff

Acmispon grandiflorus Large leaved lotus

native
Perennial herb

2019 Matt Berger

2016 Ron Vanderhoff

2016 Hunter Breck

Acmispon grandiflorus var. grandiflorus Chaparral lotus

native
Perennial herb

2014 Steve Matson

Acmispon grandiflorus var. macranthus Mountain chaparral lotus

native
Perennial herb

2008 Steve Matson

2018 Julie Kierstead Nelson

Acmispon haydonii Pygmy lotus

• rare native
Perennial herb

1995 Saint Mary's College of California

Acmispon junceus Rush lotus

native
Perennial herb

2016 John Doyen

2021 Toni Corelli

2016 John Doyen

Acmispon junceus var. biolettii Bioletti's rush lotus

native
Perennial herb

2021 Toni Corelli

Acmispon junceus var. junceus Rush lotus

native
Perennial herb

2016 John Doyen

Acmispon maritimus Coastal lotus

native
Annual herb

2019 Diane Etchison

2023 Ron Vanderhoff

2020 Mary Conway

Acmispon maritimus var. brevivexillus Coastal lotus

native
Annual herb

2017 Bonnie Nickel

2015 John Doyen

2011 Neal Kramer

Acmispon maritimus var. maritimus Coastal lotus

native
Annual herb

2020 Ron Vanderhoff

2023 Ron Vanderhoff

2020 Ron Vanderhoff

Lotus salsuginosus var. salsuginosus Coastal lotus

native
Annual herb

2020 Ron Vanderhoff

2023 Ron Vanderhoff

2020 Ron Vanderhoff

Acmispon micranthus Small flowered lotus

native
Annual herb

2016 Aaron Echols

2016 James Bailey

2019 Ron Vanderhoff

Lotus nevadensis Sierra lotus

native
Perennial herb

2019 Diane Etchison

2005 Jerry Murray

2015 John Doyen

Lotus nevadensis var. nevadensis Sierra nevada lotus

native
Perennial herb

2006 Steve Matson

2018 Steve Matson

Acmispon parviflorus Hill lotus

native
Annual herb

2008 Steve Matson

2005 Steve Matson

2008 Steve Matson

Lotus micranthus Hill lotus

native
Annual herb

2008 Steve Matson

2005 Steve Matson

2008 Steve Matson

Acmispon procumbens Silky california broom

native
Perennial herb, Shrub

2008 Keir Morse

2019 David Greenberger

Lotus procumbens Silky california broom

native
Perennial herb, Shrub

2008 Keir Morse

2019 David Greenberger

Acmispon procumbens var. jepsonii Jepson's california broom

native
Perennial herb, Shrub

2019 David Greenberger

2022 James Bailey

2000 Larry Blakely

Acmispon procumbens var. procumbens Silky california broom

native
Perennial herb, Shrub

2008 Keir Morse

2012 Neal Kramer

2012 Gary McDonald

Acmispon prostratus Nuttall's acmispon

• rare native
Annual herb

2018 Ron Vanderhoff

2015 David Varner

Acmispon rigidus Shrubby Deervetch, Desert lotus

native
Perennial herb

2008 Steve Matson

2020 Ron Vanderhoff

Lotus rigidus Shrubby Deervetch, Desert lotus

native
Perennial herb

2008 Steve Matson

2020 Ron Vanderhoff

Acmispon rubriflorus Red-flowered bird's-foot trefoil

• rare native
Annual herb

2021 R.A. Chasey

1998 John Game

2021 R.A. Chasey

Acmispon strigosus Strigose lotus

native
Annual herb

2016 Steve Matson

2009 Steve Matson

2016 Steve Matson

Lotus strigosus Strigose lotus

native
Annual herb

2016 Steve Matson

2009 Steve Matson

2016 Steve Matson

Lotus strigosus var. tomentellus Strigose lotus

native
Annual herb

2016 Steve Matson

2009 Steve Matson

2016 Steve Matson

Acmispon heermannii

native
Perennial herb

2021 John Rawlings

2021 Emily Sluiman

2022 Ron Vanderhoff

Acmispon heermannii var. heermannii

native
Perennial herb

2022 Ron Vanderhoff

2020 Ron Vanderhoff

Acmispon heermannii var. orbicularis

native
Perennial herb

2022 R.A. Chasey

2023 Matt Berger

Acmispon wrangelianus Wrangel lotus

native
Annual herb

2016 Steve Matson

Lotus wrangelianus Wrangel lotus

native
Annual herb

2016 Steve Matson

Aconitum columbianum Columbian monkshood, Monkshood

native
Perennial herb

2016 Steve Matson

Aconitum columbianum ssp. columbianum Columbian monkshood

native
Perennial herb

2016 Steve Matson

Aconitum columbianum ssp. viviparum Columbian monkshood

native
Perennial herb

2009 Gerald Carr

2010 Keir Morse

2009 Gerald Carr

Aconitum delphiniifolium Larkspurleaf monkshood

non-native
Perennial herb

Gerald and Buff Corsi 2015 California Academy of Sciences

Aconogonon davisiae Davis knotweed

native
Perennial herb

2011 Steve Matson

Polygonum davisiae Davis knotweed

native
Perennial herb

2011 Steve Matson

Aconogonon newberryi Newberry's smartweed

native
Perennial herb

2023 Ryan O'Dell

Polygonum newberryi Newberry's smartweed

native
Perennial herb

2023 Ryan O'Dell

Aconogonon phytolaccifolium Pokeweed knotweed

native
Perennial herb

2004 Steve Matson

2008 Gerald Carr

2022 Mike Russler

Polygonum phytolaccifolium Pokeweed knotweed

native
Perennial herb

2004 Steve Matson

2008 Gerald Carr

2022 Mike Russler

Acorus calamus Sweetflag

non-native
Perennial herb

ACORACEAE

2010 Louis-M. Landry

Acourtia microcephala Sacapellote

native
Perennial herb

2022 Diane Etchison

2019 Ron Vanderhoff

2021 Aaron Echols

Actaea rubra baneberry, Western baneberry

native
Perennial herb

2014 Steve Matson

2002 Gerald Carr

Actaea rubra ssp. arguta baneberry, Western baneberry

native
Perennial herb

2014 Steve Matson

2002 Gerald Carr

Actaea rubra ssp. rubra baneberry, Western baneberry

native
Perennial herb

2014 Steve Matson

2002 Gerald Carr

Cynoglossum grande Hound's tongue, Western houndstongue, Adelinia

native
Perennial herb

2022 David Strauch

2007 Steve Matson

2021 Dee Shea Himes

Adenocaulon bicolor American trailplant, Trail plant

native
Perennial herb

2018 MCOSD EDRR

2020 Cynthia Powell

2020 Bob Sweatt

Adenophyllum cooperi Cooper dyssodia, Cooper's dogweed

native
Perennial herb

2021 Keir Morse

2020 Lynn Sweet

2021 Keir Morse

Adenophyllum porophylloides San Felipe dogweed, San Felipe dyssodia

native
Perennial herb

2020 David Greenberger

2019 Matt Berger

Adenostoma fasciculatum Chamise

native
Tree, Shrub

2019 Steve Matson

Adenostoma fasciculatum var. fasciculatum Chamise

native
Tree, Shrub

Adenostoma fasciculatum var. fasciculatum

2019 Steve Matson

Adenostoma fasciculatum var. obtusifolium San diego chamise

native
Tree, Shrub

Adenostoma fasciculatum var. obtusifolium

2016 Ron Vanderhoff

2018 Ron Vanderhoff

2019 Diane Etchison

Adenostoma fasciculatum var. prostratum Prostrate chamise

native
Tree, Shrub

2015 Raphael Mazor

2023 Jacob Smith

2023 David Strauch

Adenostoma sparsifolium Red shanks

native
Tree

2019 Bryant Baker

2020 David Greenberger

2019 Aaron Echols

Adiantum aleuticum Five finger fern

native
Fern

2013 BOB CASE

2018 Neal Kramer

2021 R.A. Chasey

Adiantum pedatum Five finger fern

native
Fern

2013 BOB CASE

2018 Neal Kramer

2021 R.A. Chasey

Adiantum pedatum var. aleuticum Five finger fern

native
Fern

2013 BOB CASE

2018 Neal Kramer

2021 R.A. Chasey

Adiantum capillus-veneris Venus hair

native
Fern

2020 Ron Vanderhoff

Adiantum hispidulum Rough maidenhair

non-native
Fern

2010 Moorea Biocode

2006 Moorea Biocode

Adiantum jordanii Adiantum, maiden hair fern

native
Fern

2022 BOB CASE

2019 Ron Vanderhoff

2023 Mike Russler

Adiantum raddianum Delta maidenhair

non-native
Fern

Adiantum shastense Shasta adiantum

• rare native
Fern

2016 Steve Matson

Adiantum Xtracyi

native
Fern

Adolphia californica California adolphia

• rare native
Shrub

2019 Alexander S. Kunz

2012 Keir Morse

Adonis aestivalis Summer pheasant's eye

non-native
Annual herb

2016 Terry Miller

2003 Christopher L. Christie

Aegilops cylindrica Jointed goat grass, Jointed goatgrass

• invasive non-native
Annual grass

2021 Aleksandra Evert

2021 Jacob Smith

2018 MCOSD Restoration Crew

Aegilops geniculata Ovate goatgrass

• invasive non-native
Annual grass

2006 Luigi Rignanese

Aegilops triuncialis Barbed goatgrass

• invasive non-native
Annual grass

2008 Steve Matson

2018 Scott Oneto

Aeonium arboreum Tree aenium

non-native
Shrub

2021 Ron Vanderhoff

2011 Zoya Akulova

2009 Neal Kramer

Aeonium arboreum var. holochrysum Tree aenium

non-native
Shrub

2021 Ron Vanderhoff

2011 Zoya Akulova

2009 Neal Kramer

Aeonium haworthii Haworth's aeonium

non-native
Shrub

2019 Wyatt Dooley

2021 Ron Vanderhoff

Aeschynomene rudis Red aeschynomene, Zigzag jointvetch

• invasive non-native
Annual, Perennial herb

2001 CDFA

Aesculus californica Buckeye, California buckeye, California horse chestnut

native
Tree

2011 Steve Matson

2019 Verna Jigour

Aesculus hippocastanum Horse chestnut

non-native
Tree

2022 John Malpas

Aesculus pavia Red buckeye

non-native
Tree

Agapanthus africanus Lily of the nile

non-native
Perennial herb

2022 Erin Jackson

2021 Toni Corelli

2005 Louis-M. Landry

Agastache parvifolia Small leaved horsemint, Smallleaf giant hyssop

native
Perennial herb

2006 Steve Matson

2008 John Doyen

Agastache urticifolia Horse mint, Horsemint giant hyssop, Nettle leaf giant hyssop

native
Perennial herb

2020 Bob Sweatt

2010 Gerald Carr

Agastache urticifolia var. urticifolia Horse mint, Horsemint giant hyssop, Nettle leaf giant hyssop

native
Perennial herb

2020 Bob Sweatt

2010 Gerald Carr

Agathis robusta Queensland kauri

non-native
Tree

Agave americana American century plant

non-native
Shrub

2021 Ron Vanderhoff

2017 MCOSD EDRR

2021 Ron Vanderhoff

Agave americana var. albo American century plant

non-native
Shrub

2021 Ron Vanderhoff

2017 MCOSD EDRR

2021 Ron Vanderhoff

Agave americana var. marginata American century plant

non-native
Shrub

2021 Ron Vanderhoff

2011 Michael O'Brien

2021 Ron Vanderhoff

Agave americana var. mediopicta American century plant

non-native
Shrub

2021 Ron Vanderhoff

2011 Michael O'Brien

2021 Ron Vanderhoff

Agave deserti Desert agave

native
Shrub

2020 David Greenberger

2019 Matt Berger

2023 Julia Markey

Agave deserti var. deserti Desert agave

native
Shrub

2020 David Greenberger

2019 Susan McDougall

Agave deserti var. simplex Desert agave

native
Shrub

2007 Charles E. Jones

Agave shawii Coastal agave, Shaw's agave

native
Shrub

2011 Keir Morse

2022 Olga Batalov

2011 Keir Morse

Agave shawii ssp. goldmaniana Coastal agave, Shaw's agave

native
Shrub

2011 Keir Morse

2022 Olga Batalov

2011 Keir Morse

Agave shawii ssp. shawii Coastal agave, Shaw's agave

native
Shrub

2011 Keir Morse

2022 Olga Batalov

2011 Keir Morse

Agave shawii var. goldmaniana Coastal agave, Shaw's agave

native
Shrub

2011 Keir Morse

2022 Olga Batalov

2011 Keir Morse

Agave shawii var. sebastiana Coastal agave, Shaw's agave

native
Shrub

2011 Keir Morse

2022 Olga Batalov

2011 Keir Morse

Agave shawii var. shawii Shaw's agave

• rare native
Shrub

2011 Keir Morse

Agave sisalana Sisal hemp

non-native
Perennial herb

Agave utahensis Clark mountain agave, Utah agave

native
Shrub

2020 Matt Berger

2022 Matt Berger

Agave utahensis ssp. nevadensis Clark mountain agave, Utah agave

native
Shrub

2020 Matt Berger

2022 Matt Berger

Agave utahensis var. eborispina Utah agave

• rare native
Shrub

2022 Matt Berger

Agave utahensis var. nevadensis Nevada agave

• rare native
Shrub

2020 Matt Berger

2022 Matt Berger

Ageratina adenophora Sticky snakeroot, Thoroughwort

• invasive non-native
Perennial herb

2019 Ron Vanderhoff

2017 Keir Morse

2021 Heather Brady DeQuincy

Ageratina herbacea Fragrant snakeroot

• rare native
Perennial herb

2010 James M. Andre

2012 Keir Morse

2010 James M. Andre

Ageratina occidentalis Western eupatorium, Western joepiweed, Western snakeroot

native
Perennial herb

2019 Steve Matson

Eupatorium occidentale Western eupatorium, Western joepiweed, Western snakeroot

native
Perennial herb

2019 Steve Matson

Ageratina shastensis Shasta ageratina, Shasta eupatorium

• rare native
Perennial herb

2019 Matt Berger

Ageratum conyzoides Tropical whiteweed

non-native
Annual, Perennial herb

2010 Moorea Biocode

Ageratum houstonianum Bluemink

non-native
Annual, Perennial herb

Agoseris apargioides Coast dandelion, Seaside agoseris, Woolly goat chicory

native
Perennial herb

2022 R.A. Chasey

2016 Cynthia Powell

Agoseris apargioides var. apargioides Coast dandelion, Seaside agoseris, Seaside dandelion

native
Perennial herb

2011 Thomas Reyes

Agoseris apargioides var. eastwoodiae Beach dandelion, Eastwood's seaside agoseris, Woolly goat chicory

native
Perennial herb

2017 James Gonsman

2017 Adam Chasey

2017 John Doyen

Agoseris apargioides var. maritima Woolly goat chicory

native
Perennial herb

1995 Saint Mary's College of California

Agoseris aurantiaca Orange agoseris, Orange flowered agoseris

native
Perennial herb

2017 Steve Matson

Agoseris aurantiaca var. aurantiaca Orange agoseris

native
Perennial herb

2017 Steve Matson

Agoseris glauca Pale dandelion, Short beaked agoseris

native
Perennial herb

2020 Steve Matson

Agoseris glauca var. glauca Pale agoseris, Short beaked agoseris

native
Perennial herb

2020 Steve Matson

Agoseris grandiflora Bigflower agoseris, California dandelion, Giant mountain dandelion

native
Perennial herb

2014 Steve Matson

Agoseris grandiflora var. grandiflora Giant mountain dandelion

native
Perennial herb

2007 Gerald Carr

2021 Emily Sluiman

Agoseris grandiflora var. leptophylla Giant mountain dandelion

native
Perennial herb

2007 Gerald Carr

Agoseris heterophylla Annual agoseris, Annual mountain dandelion

native
Annual herb

2020 Bob Sweatt

2021 Lisa Berry

2020 Bob Sweatt

Agoseris heterophylla var. cryptopleura Mountain dandelion

native
Annual herb

2022 Mike Russler

Agoseris heterophylla var. heterophylla Annual agoseris

native
Annual herb

2003 Steve Matson

Agoseris hirsuta Woolly goat chicory

native
Perennial herb

2014 Mike Alexander

2012 Zoya Akulova

Agoseris glauca var. dasycephala Mountain agoseris

native
Perennial herb

2012 Steve Matson

2006 Keir Morse

Agoseris glauca var. monticola Mountain agoseris

native
Perennial herb

2012 Steve Matson

2006 Keir Morse

Agoseris monticola Mountain agoseris

native
Perennial herb

2012 Steve Matson

2006 Keir Morse

Agoseris glauca var. laciniata False dandelion

native
Perennial herb

2005 Steve Matson

Agoseris parviflora False dandelion

native
Perennial herb

2005 Steve Matson

Agoseris retrorsa Spear leaved agoseris, Spearleaf agoseris, Spearleaf mountain dandelion

native
Perennial herb

2018 Steve Matson

Agrimonia gryposepala Common agrimony

native
Perennial herb

2019 David popp

Agrimonia striata Roadside agrimony

native
Perennial herb

2008 Louis-M. Landry

2006 Louis-M. Landry

2008 Louis-M. Landry

Agropyron cristatum Crested wheatgrass

non-native
Perennial grass

2016 David popp

2009 Zoya Akulova

2010 Lee Dittmann

Agropyron cristatum ssp. pectinatum Crested wheatgrass

non-native
Perennial grass

2005 Steve Matson

2019 David popp

2009 Zoya Akulova

Agrostemma githago Common corncockle

non-native
Annual, Perennial herb

2015 Robert Carr

2008 Louis-M. Landry

Agrostis avenacea Pacific bentgrass

• invasive non-native
Perennial grass

2021 John Rawlings

2016 Andrew Longman

2022 Donald Burk

Agrostis blasdalei Blasdale bentgrass, Blasdale's bent grass

• rare native
Perennial grass (rhizomatous)

2013 James Gonsman

2022 R.A. Chasey

Agrostis capillaris Colonial bentgrass

non-native
Perennial grass

2005 Steve Matson

Agrostis clivicola var. puntareyesensis California bent grass, California bentgrass, Point reyes bent grass

native
Perennial grass

2019 Ken Hickman

2016 Toni Corelli

Agrostis densiflora California bent grass, California bentgrass, Point reyes bent grass

native
Perennial grass

2019 Ken Hickman

2016 Toni Corelli

Agrostis elliottiana Elliott's bentgrass

native
Annual grass

2005 Steve Matson

Agrostis exarata Spike bentgrass, Spike redtop

native
Perennial grass

2022 Teal Derrer

2021 David popp

2022 John Rawlings

Agrostis gigantea Creeping bentgras, Giant bentgrass, Redtop

non-native
Perennial grass

2023 Dana York

2022 John Rawlings

Agrostis hallii Hall redtop, Hall's bent grass, Hall's bentgrass

native
Perennial grass

2005 Steve Matson

2023 John Rawlings

Agrostis hendersonii Henderson's bent grass, Henderson's bentgrass

• rare native
Annual grass

2005 Steve Matson

2022 Donald Burk

Agrostis hooveri Hoover's bent grass, Hoover's bentgrass

• rare native
Perennial grass

2008 Adonis (Don) Tate

2017 Adonis (Don) Tate

Agrostis humilis Mountain bent grass

• rare native
Perennial grass

2004 Steve Matson

2015 Belinda Lo

Agrostis thurberiana Mountain bent grass

• rare native
Perennial grass

2004 Steve Matson

2015 Belinda Lo

Agrostis idahoensis Colonial bentgrass, Idaho bentgrass

native
Perennial grass

2005 Steve Matson

2020 John Rawlings

Agrostis lacuna-vernalis Vernal pool bent grass

• rare native
Annual grass

2022 Irene Rosen

2022 Cynthia Powell

2022 Irene Rosen

Agrostis microphylla Little leaf bentgrass, Small leaf bentgrass, Small leaved bentgrass

native
Annual grass

2023 John Rawlings

Agrostis oregonensis Oregon bentgrass, Oregon redtop

native
Perennial grass

2020 Susan McDougall

2008 Keir Morse

Agrostis pallens Leafy bent grass, Diego bent grass, Seashore bentgrass

native
Perennial grass

2021 John Rawlings

2020 Susan McDougall

2021 John Rawlings

Agrostis scabra Rough bentgrass, Ticklegrass

native
Perennial grass

2005 Steve Matson

2022 David popp

2007 Louis-M. Landry

Agrostis stolonifera Creeping bentgrass, Redtop

• invasive non-native
Perennial grass

2018 Rachelle Gray

Agrostis tandilensis Kennedy's bentgrass

non-native
Annual grass

University and Jepson Herbaria

Agrostis variabilis Mountain bentgrass, Mountain redtop

native
Perennial grass

2005 Steve Matson

Ailanthus altissima Ailanthus, Tree of heaven

• invasive non-native
Tree

SIMAROUBACEAE

2022 Jenny Gossett

2020 Julie A. Kierstead

Aira caryophyllea Shiver grass, Silver hairgrass, Silvery hairgrass

• invasive non-native
Annual grass

2005 Steve Matson

Aira praecox Yellow hairgrass

• invasive non-native
Annual grass

2018 Ken Hickman

2022 John Rawlings

2010 National Park Service

Ajuga pyramidalis Pyramid bugle

non-native
Perennial herb

2012 Dr. Amadej Trnkoczy

2007 Dr. Amadej Trnkoczy

Ajuga reptans Common bugle

non-native
Perennial herb

2021 Sherry Adams

2012 Dean Wm. Taylor,Ph.D.

Albizia julibrissin Silktree

non-native
Tree, Shrub

2019 Ron Vanderhoff

2023 John Malpas

2019 Ron Vanderhoff

Albizia lebbeck Woman's tongue

non-native
Tree, Shrub

2010 Moorea Biocode

Albizia lophantha Albizia, Plume acacia, Stink bean

non-native
Tree, Shrub

2020 Ron Vanderhoff

Alcea rosea Holly hock, Hollyhock

non-native
Perennial herb

2017 Ron Vanderhoff

2021 Ron Vanderhoff

Alcea rosea ssp. ficifolia Holly hock, Hollyhock

non-native
Perennial herb

2017 Ron Vanderhoff

2021 Ron Vanderhoff

Aleurites moluccana Indian walnut

non-native
Perennial herb

Alhagi maurorum Camel thorn

• invasive non-native
Shrub

2001 CDFA

Alhagi pseudalhagi Camel thorn

• invasive non-native
Shrub

2001 CDFA

Aliciella hutchinsifolia Desert pale gilia

native
Annual herb

2022 Steve Matson

Aliciella latifolia Broad leaf gilia

native
Annual herb

2016 Steve Matson

2015 Steve Matson

Aliciella latifolia ssp. latifolia Broadleaf gilia

native
Annual herb

2016 Steve Matson

Gilia latifolia ssp. latifolia Broadleaf gilia

native
Annual herb

2016 Steve Matson

Aliciella leptomeria Sand aliciella

native
Annual herb

2022 Steve Matson

Gilia leptomeria Sand aliciella

native
Annual herb

2022 Steve Matson

Aliciella lottiae Lott's gilia

native
Annual herb

2016 Steve Matson

Aliciella monoensis Mono gilia, Mono Lake aliciella

native
Annual herb

2011 Steve Matson

2005 Keir Morse

Gilia subacaulis Mono gilia, Mono Lake aliciella

native
Annual herb

2011 Steve Matson

2005 Keir Morse

Aliciella ripleyi Ripley's aliciella

• rare native
Perennial herb

2020 Matt Berger

2019 Matt Berger

Aliciella triodon Coyote gilia

• rare native
Annual herb

2019 Steve Matson

Gilia triodon Coyote gilia

• rare native
Annual herb

2019 Steve Matson

Alisma gramineum Grass leaf water plantain, Grasslike waterplantain

• rare native
Perennial herb

2012 Robert Carr

Alisma lanceolatum Lanceleaf water plantain

non-native
Perennial herb (aquatic)

2019 Jennifer Mo

2022 R.A. Chasey

2021 R.A. Chasey

Alisma plantago-aquatica Northern water plantain

native
Perennial herb (aquatic)

2023 Ken-ichi Ueda

2022 R.A. Chasey

2019 Gena Bentall

Alisma subcordatum Northern water plantain

native
Perennial herb (aquatic)

2023 Ken-ichi Ueda

2022 R.A. Chasey

2019 Gena Bentall

Alisma triviale Northern water plantain

native
Perennial herb (aquatic)

2023 Ken-ichi Ueda

2022 R.A. Chasey

2019 Gena Bentall

Allenrolfea occidentalis Iodine bush, Iodinebush

native
Shrub

2016 Steve Matson

Alliaria petiolata Garlic mustard

non-native
Annual, Biennial herb

2022 Bryce Ryals

2023 Chris McDonald

2022 Bryce Ryals

Allionia incarnata Trailing allionia, Trailing four o'clock, Windmills

native
Perennial herb

2010 Steve Matson

2022 Steve Matson

Allionia incarnata var. glabra Trailing allionia, Trailing four o'clock, Windmills

native
Perennial herb

2010 Steve Matson

2022 Steve Matson

Allionia incarnata var. incarnata Trailing windmills

native
Perennial herb

2019 Matt Berger

2019 R.A. Chasey

Allionia incarnata var. villosa Trailing windmills

native
Annual, Perennial herb

2017 John Doyen

2012 Keir Morse

Allium abramsii Abrams' allium, Abrams' onion

• rare native
Perennial herb (bulb)

2018 Steve Matson

Allium acuminatum Taper tipped onion, Tapertip onion

native
Perennial herb (bulb)

2021 Steve Matson

2006 Steve Matson

Allium amplectens Narrow leaved onion, Narrowleaf onion

native
Perennial herb (bulb)

2016 Steve Matson

Allium anceps Twin leaved onion, Twinleaf onion

native
Perennial herb (bulb)

2008 Steve Matson

2010 Steve Matson

Allium atrorubens Dark red onion, Darkred onion

native
Perennial herb (bulb)

2005 Steve Matson

2010 Steve Matson

2011 Steve Matson

Allium atrorubens var. cristatum Crested onion, Darkred onion, Wild onion

• rare native
Perennial herb (bulb)

2010 Steve Matson

2011 Steve Matson

Allium bisceptrum Twincrest onion

native
Perennial herb (bulb)

2012 Steve Matson

2008 Steve Matson

2012 Steve Matson

Allium bisceptrum var. bisceptrum Twincrest onion

native
Perennial herb (bulb)

2012 Steve Matson

2008 Steve Matson

2012 Steve Matson

Allium bolanderi Bolander's onion

native
Perennial herb (bulb)

2020 Julie A. Kierstead

2016 Steve Matson

Allium bolanderi var. bolanderi Bolander's onion

native
Perennial herb (bulb)

2016 Steve Matson

Allium bolanderi var. mirabile Bolander's onion

native
Perennial herb (bulb)

2016 Keir Morse

Allium burlewii Burlew's onion

native
Perennial herb (bulb)

2019 Gordon Jenkins

2020 Neal Kramer

Allium campanulatum Dusky onion, Sierra onion

native
Perennial herb (bulb)

2003 Steve Matson

Allium cepa Garden onion

non-native
Perennial herb (bulb)

2019 Stacie Sherman

2016 Zoya Akulova

Allium cernuum Nodding onion

non-native
Perennial herb (bulb)

Allium cratericola Cascade onion

native
Perennial herb (bulb)

2016 BOB CASE

2022 Cynthia Powell

2017 David Greenberger

Allium crispum Crinkled onion

native
Perennial herb (bulb)

2023 Bryant Baker

2017 Joe Engelbrecht

�2012 Gary McDonald

Allium denticulatum Toothed onion, Toothed wild onion, Wild onion

native
Perennial herb (bulb)

2016 Julie Watson

2017 John Doyen

2023 Ryan O'Dell

Allium diabolense Diablo onion, Serpentine onion

native
Perennial herb (bulb)

2020 David Greenberger

2021 Mike Russler

Allium dichlamydeum Coast onion, Coastal onion

native
Perennial herb (bulb)

2017 Mary Sue Ittner

2020 Mary Sue Ittner

2021 Hunter Breck

Allium falcifolium Scytheleaf onion, Sickle leaf onion

native
Perennial herb (bulb)

2011 Steve Matson

2022 Steve Matson

2011 Steve Matson

Allium fimbriatum Fringed onion, Wild onion

native
Perennial herb (bulb)

2008 Keir Morse

2023 Bob Steele

2008 Keir Morse

Allium fimbriatum var. fimbriatum Fringed onion

native
Perennial herb (bulb)

2008 Keir Morse

2022 R.A. Chasey

Allium fimbriatum var. mohavense Mojave fringed onion, Mojave onion

native
Perennial herb (bulb)

2023 Bob Steele

Allium fimbriatum var. purdyi Purdy's onion

• rare native
Perennial herb (bulb)

2014 Steve Matson

Allium haematochiton Red skinned onion, Redskin onion

native
Perennial herb (bulb)

2017 Steve Matson

Allium hickmanii Hickman's onion

• rare native
Perennial herb (bulb)

2022 Irene Rosen

2021 Mary Conway

2022 Irene Rosen

Allium hoffmanii Beegum onion

• rare native
Perennial herb (bulb)

2019 Steve Matson

Allium howellii Howell's onion

native
Perennial herb (bulb)

2019 Matt Berger

2020 Matt Berger

2023 Bryant Baker

Allium howellii var. clokeyi Clokey's onion, Mt. pinos onion

• rare native
Perennial herb (bulb)

2023 Bryant Baker

2016 Keir Morse

Allium howellii var. howellii Howell's onion

• rare native
Perennial herb (bulb)

2023 R.A. Chasey

2019 Matt Berger

Allium howellii var. sanbenitense San benito onion

• rare native
Perennial herb (bulb)

2023 Ryan O'Dell

2024 Ryan O'Dell

2023 Ryan O'Dell

Allium hyalinum Glassy onion

native
Perennial herb (bulb)

2019 Mary Merriman

2022 Mike Russler

2021 Steve Laymon

Allium jepsonii Jepson's onion

• rare native
Perennial herb (bulb)

2019 David Greenberger

2021 David popp

2020 Belinda Lo

Allium lacunosum Pitted onion

native
Perennial herb (bulb)

2016 Steve Matson

Allium lacunosum ssp. lacunosum Pitted onion

native
Perennial herb (bulb)

2016 Steve Matson

Allium lacunosum var. davisiae Davis' pitted onion

native
Perennial herb (bulb)

2023 Bob Steele

2016 Brian Bielfelt

2023 Bob Steele

Allium lacunosum var. kernense Kern onion, Kern's pitted onion

native
Perennial herb (bulb)

2019 Mary Merriman

2010 Cristian Singer

Allium lacunosum var. lacunosum Pitted onion

native
Perennial herb (bulb)

2016 Steve Matson

Allium lacunosum var. micranthum Small flowered pitted onion, White fringed onion

native
Perennial herb (bulb)

2008 Keir Morse

2018 Aaron Schusteff

Allium lemmonii Lemmon's onion

native
Perennial herb (bulb)

2005 Steve Matson

Allium marvinii Yucaipa onion

• rare native
Perennial herb (bulb)

2021 Ron Vanderhoff

2016 Ron Vanderhoff

2013 Keir Morse

Allium membranaceum Papery onion

native
Perennial herb (bulb)

2021 David popp

2019 Dana York

2021 Barry Rice

Allium monticola San bernardino mountain onion

native
Perennial herb (bulb)

2019 Manzanita Dictionary

2017 John L. Thompson

2014 Ron Vanderhoff

Allium munzii Munz's onion

• rare native
Perennial herb (bulb)

2003 Guy Bruyea

2011 Sally Trnka

Allium neapolitanum White garlic

non-native
Perennial herb (bulb)

2020 Jennifer Mo

2017 Craig Denson

2022 Brad Cook

Allium nevadense Nevada onion

• rare native
Perennial herb (bulb)

2023 Dana York

2012 John Doyen

Allium obtusum Red sierra onion

native
Perennial herb (bulb)

2003 Steve Matson

2005 Steve Matson

Allium obtusum var. conspicuum Showy red sierra onion

native
Perennial herb (bulb)

2019 R.A. Chasey

Allium obtusum var. obtusum Red sierra onion

native
Perennial herb (bulb)

2003 Steve Matson

2005 Steve Matson

2009 Steve Matson

Allium paniculatum var. paniculatum Panicled onion

• invasive non-native
Perennial herb (bulb)

2001 CDFA

Allium parishii Parish's onion

• rare native
Perennial herb (bulb)

2017 Margarita Orlova

2017 richard mcneill

Allium parryi Parry's fringed onion

native
Perennial herb (bulb)

2017 Mary Merriman

2023 Ryan O'Dell

2018 Ron Vanderhoff

Allium parvum Dwarf onion, Small onion

native
Perennial herb (bulb)

2011 Steve Matson

Allium peninsulare Mexicali onion

native
Perennial herb (bulb)

2022 Rhonda Allen

2019 Diane Etchison

Allium peninsulare var. franciscanum San francisco bay onion, San francisco onion

• rare native
Perennial herb (bulb)

2023 Alice Cummings

2021 Dee Shea Himes

2017 Michelle Bosch

Allium peninsulare var. peninsulare Mexicali onion, Penisula onion

native
Perennial herb (bulb)

2019 Ron Vanderhoff

2021 Mike Russler

Allium platycaule Broad stemmed onion, Broadstemmed onion, Flat stemmed onion

native
Perennial herb (bulb)

2006 Steve Matson

Allium porrum Garden leek

non-native
Perennial herb (bulb)

Allium praecox Early onion

native
Perennial herb (bulb)

2006 Steve Matson

Allium sanbornii Sanborn's onion

native
Perennial herb (bulb)

2015 Tim Miller

2015 Jennifer Gibson

Allium sanbornii var. congdonii Congdon's onion

• rare native
Perennial herb (bulb)

2023 Mike Russler

Allium sanbornii var. sanbornii Sanborn's allium, Sanborn's onion

• rare native
Perennial herb (bulb)

2015 Tim Miller

2019 Matt Berger

Allium sativum Cultivated garlic

non-native
Perennial herb (bulb)

2005 Luigi Rignanese

Allium serra Jeweled onion

native
Perennial herb (bulb)

2022 Linnea vonAhn

2019 Matt Berger

Allium sharsmithiae Sharsmith's onion

• rare native
Perennial herb (bulb)

2020 David Greenberger

2019 Matt Berger

2020 David Greenberger

Allium shevockii Spanish needle onion

• rare native
Perennial herb (bulb)

2022 Bob Steele

2019 Matt Berger

Allium siskiyouense Siskiyou onion

• rare native
Perennial herb (bulb)

2023 Dana York

2022 Dana York

2023 Dana York

Allium tolmiei Tolmie's onion

native
Perennial herb (bulb)

2016 John Doyen

2018 John Doyen

Allium tolmiei var. tolmiei Tolm's onion, Tolmei's onion

native
Perennial herb (bulb)

2016 John Doyen

2018 John Doyen

2005 Christopher L. Christie

Allium tribracteatum Three bracted onion, Threebract onion

• rare native
Perennial herb (bulb)

2023 Mike Russler

2004 Dean Wm. Taylor

Allium triquetrum Three cornered leek, Threecorner leek, White flowered onion

• invasive non-native
Perennial herb (bulb)

2017 Steve Matson

Allium tuolumnense Rawhide hill onion

• rare native
Perennial herb (bulb)

2024 Mike Russler

Allium unifolium One leaf onion, Oneleaf onion

native
Perennial herb (bulb)

2021 Doug Allshouse

2020 stephen rosenthal

2023 Mary Ann Machi

Allium validum Pacific mountain onion, Pacific onion, Swamp onion

native
Perennial herb (bulb)

2009 Steve Matson

Allium vineale Vineyard onion, Wild garlic

• invasive non-native
Perennial herb (bulb)

2022 Emily R. Allen

2017 dave hood

2001 CDFA

Allium vineale ssp. vineale Vineyard onion, Wild garlic

• invasive non-native
Perennial herb (bulb)

2022 Emily R. Allen

2017 dave hood

2001 CDFA

Allium yosemitense Yosemite onion

• rare native
Perennial herb (bulb)

2012 Lynn Robertson

2010 Barry Breckling

Allophyllum divaricatum Purple false gilia, Purple false gilyflower, Straggling gilia

native
Annual herb

2015 Ron Vanderhoff

2019 David Greenberger

2022 BOB CASE

Allophyllum gilioides Dense false gilia, Dense false gilyflower

native
Annual herb

2022 Mary Conway

2019 Steve Matson

Allophyllum gilioides ssp. gilioides Dense false gilia, Dense false gilyflower

native
Annual herb

2019 Matt Berger

2021 Helen Hancock

2019 Matt Berger

Allophyllum gilioides ssp. violaceum Dense false gilia, Dense false gilyflower

native
Annual herb

2019 Steve Matson

Allophyllum glutinosum Sticky false gilia, Sticky false gilyflower

native
Annual herb

2020 Ron Vanderhoff

2019 Ron Vanderhoff

2019 Diane Etchison

Allophyllum integrifolium White allophyllum, White false gilia, White false gilyflower

native
Annual herb

2003 Steve Matson

Allotropa virgata Candystriped allotropa, Sugar stick, Sugarstick

native
Perennial herb (mycoparasitic)

2006 Steve Matson

Almutaster pauciflorus Alkali marsh aster

• rare native
Perennial herb

2020 Steve Matson

Alnus cordata Italian alder

non-native
Tree

2021 Jennifer Mo

2020 Jennifer Mo

Alnus incana Gray alder

native
Tree, Shrub

2013 BOB CASE

2019 R.A. Chasey

2014 Zoya Akulova

Alnus incana ssp. incana Gray alder

native
Tree, Shrub

2013 BOB CASE

2019 R.A. Chasey

2014 Zoya Akulova

Alnus incana ssp. rugosa Gray alder

native
Tree, Shrub

2013 BOB CASE

2019 R.A. Chasey

2014 Zoya Akulova

Alnus incana ssp. tenuifolia Creek alder, Mountain alder

native
Tree, Shrub

2019 Richard Spjut

2013 BOB CASE

2019 R.A. Chasey

Alnus tenuifolia Creek alder, Mountain alder

native
Tree, Shrub

2019 Richard Spjut

2013 BOB CASE

2019 R.A. Chasey

Alnus rhombifolia White alder

native
Tree

2005 BOB CASE

2014 Garth Wadsworth

2023 Ron Vanderhoff

Alnus rubra Oregon alder, Red alder

native
Tree, Shrub

2023 Michael Perlmutter

2021 R.A. Chasey

Alnus viridis Green alder

native
Tree, Shrub

2023 Zane Walker

2021 Julie A. Kierstead

2007 Dr. Amadej Trnkoczy

Alnus viridis ssp. crispa Green alder

native
Tree, Shrub

2023 Zane Walker

2021 Julie A. Kierstead

2007 Dr. Amadej Trnkoczy

Alnus viridis ssp. sinuata Sitka alder

native
Tree, Shrub

2021 Julie A. Kierstead

2018 Julie Kierstead Nelson

Aloe maculata

non-native
Perennial herb

ASPHODELACEAE

2010 Toni Corelli

2013 Neal Kramer

2018 Ron Vanderhoff

Alopecurus aequalis Short awned foxtail, Sonoma alopecurus, Water foxtail

native
Perennial grass

2003 Steve Matson

Alopecurus aequalis var. aequalis Shortawn foxtail

native
Perennial grass

2020 Tim Messick

2015 David popp

2023 R.A. Chasey

Alopecurus aequalis var. sonomensis Sonoma alopecurus, Sonoma shortawn foxtail

• rare native
Perennial grass

2001 Doreen L. Smith

2013 Vernon Smith

2011 2011 Eric Wrubel/NPS

Alopecurus carolinianus Carolina foxtail

native
Annual grass

2019 David Greenberger

2019 David popp

2016 David popp

Alopecurus geniculatus Marsh foxtail, Water foxtail

native
Perennial grass

2013 Robert Sikora

2021 Aaron Arthur

2009 Trent M. Draper

Alopecurus pratensis Meadow foxtail

• invasive non-native
Perennial grass

2022 Mike Russler

2023 R.A. Chasey

2015 David Greenberger

Alopecurus saccatus Pacific foxtail

native
Annual grass

2016 David Greenberger

2023 Ron Vanderhoff

Aloysia triphylla Lemon beebrush

non-native
Shrub

2009 Jean Pawek

University and Jepson Herbaria

2009 Jean Pawek

Aloysia wrightii Oreganillo, Vera dulce, Wright lippia

• rare native
Shrub

2011 Keir Morse

Alsia californica California alsia moss

non-native
Moss

LEUCODONTACEAE

2019 John Game

2020 Diana Wahl

2023 Diana Wahl

Alternanthera philoxeroides Alligator weed, Alligatorweed

• invasive non-native
Perennial herb

2019 Robin Carter

2023 Ron Vanderhoff

2020 Gina Darin

Alternanthera sessilis Sessile joyweed

non-native
Perennial herb

Alyogyne huegelii Blue hibiscus

non-native

2009 Joseph Dougherty, M.D./ecology.org

Alyssum alyssoides Pale alyssum, Small alyssum, Sweet alyssum

non-native
Annual herb

2018 John Doyen

Alyssum desertorum Desert alyssum, Desert madwort

non-native
Annual herb

2012 Orrin Winton

2012 Barry Breckling

Alyssum simplex Alyssum

non-native
Annual herb

2010 Steve Matson

Amaranthus albus Pigweed amaranth, Tumbleweed

non-native
Annual herb

2014 Steve Matson

2018 Ron Vanderhoff

Amaranthus arenicola Sandhill amaranth

non-native
Annual herb

2015 Wynn Anderson

Amaranthus blitoides Mat amaranth, Prostrate amaranth, Prostrate pigweed

native
Annual herb

2020 Ron Vanderhoff

2023 Helen Hancock

2019 Camille Nowell

Amaranthus blitoides var. crassior Mat amaranth, Prostrate amaranth, Prostrate pigweed

native
Annual herb

2020 Ron Vanderhoff

2023 Helen Hancock

2019 Camille Nowell

Amaranthus blitum Purple amaranth

non-native
Annual herb

2018 Ron Vanderhoff

2009 Luigi Rignanese

Amaranthus blitum ssp. emarginatus Purple amaranth

non-native
Annual herb

2018 Ron Vanderhoff

Amaranthus lividus Purple amaranth

non-native
Annual herb

2018 Ron Vanderhoff

Amaranthus californicus California amaranth, California pigweed

native
Annual herb

2016 Gerald Carr

2014 jim richards

Amaranthus caudatus Quilete

non-native
Annual herb

2005 Louis-M. Landry

Amaranthus cruentus Red amaranth

non-native
Annual herb

2019 Nancy Hamlett

2017 Eric Wrubel, NPS

2019 Jennifer Mo

Amaranthus paniculatus Red amaranth

non-native
Annual herb

2019 Nancy Hamlett

2017 Eric Wrubel, NPS

2019 Jennifer Mo

Amaranthus deflexus Amaranth, Large fruited amaranth, Largefruit amaranth

non-native
Annual herb

2018 Ron Vanderhoff

Amaranthus fimbriatus Fringed amaranth

native
Annual herb

2020 R.A. Chasey

2022 R.A. Chasey

Amaranthus hybridus Slender pigweed, Slim amaranth

non-native
Annual herb

2016 Jean Pawek

Amaranthus palmeri Carelessweed, Palmer's amaranth

native
Annual herb

2020 Timothy Blank

2018 Lynn Sosnoskie

Amaranthus powellii Powell's amaranth

native
Annual herb

2022 Donald Burk

2019 David popp

2015 Keir Morse

Amaranthus retroflexus Green amaranth, Red root pigweed, Red rooted amaranth

non-native
Annual herb

2017 Ingrid Cabada

2022 Jennifer Mo

2021 Ron Vanderhoff

Amaranthus torreyi Sandhill amaranth

native
Annual herb

2015 Keir Morse

Amaranthus tricolor Joseph's-coat

non-native
Annual herb

Amaranthus tuberculatus var. rudis Common waterhemp

non-native
Annual herb

2014 Zoya Akulova

Amaranthus watsonii Watson's amaranth

• rare native
Annual herb

2003 Debra Valov

2004 Debra Valov

Amaryllis belladonna Belladonna lily

non-native
Perennial herb

2016 Camille Nowell

2023 Ron Vanderhoff

2022 Ron Vanderhoff

Thelypteris nevadensis Nevada marsh fern

native
Fern

THELYPTERIDACEAE

2016 Steve Matson

Amblyopappus pusillus Amblyopappus, Dwarf coastweed, Pineapple weed

native
Annual herb

2006 Steve Matson

Ambrosia acanthicarpa Annual bursage, Annual burweed

native
Annual herb

2009 Steve Matson

2013 Steve Matson

Ambrosia ambrosioides Ambrosia bursage, Ambrosia leaved burbush

native
Perennial herb

2020 John Doyen

2019 John Doyen

Ambrosia artemisiifolia Annual ragweed, Common ragweed, Low ragweed

non-native
Annual herb

2021 Donald Burk

2015 Richard Spellenberg

2019 David popp

Ambrosia chamissonis Beach bur, Silver beachweed

native
Perennial herb

2016 Steve Matson

Ambrosia chenopodiifolia San diego bur sage, San diego bursage

• rare native
Shrub

2020 Keir Morse

2012 Keir Morse

Ambrosia confertiflora Weak leaved burweed, Weakleaf burr ragweed

native
Perennial herb

2020 Ron Vanderhoff

2018 Ron Vanderhoff

Ambrosia dumosa Burro weed, Burrobush, White bursage

native
Shrub

2023 Steve Matson

2005 Steve Matson

Ambrosia dumosa var. hybrid Burro weed, Burrobush, White bursage

native
Shrub

2023 Steve Matson

2005 Steve Matson

Ambrosia dumosa var. hymenoclea Burro weed, Burrobush, White bursage

native
Shrub

2023 Steve Matson

2005 Steve Matson

Ambrosia eriocentra Woolly bur sage, Wooly bursage

native
Shrub

2006 Steve Matson

Ambrosia ilicifolia Holly leaved burbush, Hollyleaf bursage

native
Shrub

2011 John Doyen

Ambrosia monogyra Singlewhorl burrobrush

• rare native
Shrub

2021 Ron Vanderhoff

2017 Ron Vanderhoff

2020 Ron Vanderhoff

Hymenoclea monogyra Singlewhorl burrobrush

• rare native
Shrub

2021 Ron Vanderhoff

2017 Ron Vanderhoff

2020 Ron Vanderhoff

Ambrosia psilostachya Ragweed, Western ragweed

native
Perennial herb

2021 Mary Ann Machi

2022 Ron Vanderhoff

Ambrosia pumila Ragweed, San diego ambrosia, San diego ragweed

• rare native
Perennial herb (rhizomatous)

2021 Aaron Echols

2024 Cynthia Powell

2018 Neil Uelman

Ambrosia salsola Cheesebrush, Burrobrush

native
Shrub

2022 Steve Matson

Hymenoclea salsola Cheesebrush, Burrobrush

native
Shrub

2022 Steve Matson

Hymenoclea salsola var. hybrid Cheesebrush, Burrobrush

native
Shrub

2022 Steve Matson

Ambrosia salsola var. pentalepis Five scaled burrobrush

native
Shrub

2005 Steve Matson

2004 James M. Andre

Ambrosia salsola var. salsola Burrobrush

native
Shrub

2015 Steve Matson

Hymenoclea salsola var. salsola Burrobrush

native
Shrub

2015 Steve Matson

Ambrosia trifida Giant ragweed

• invasive non-native
Annual herb

2015 Richard Spellenberg

2008 Louis-M. Landry

2010 Jean Pawek

Ambrosia trifida var. trifida Giant ragweed

• invasive non-native
Annual herb

2015 Richard Spellenberg

2008 Louis-M. Landry

2010 Jean Pawek

Ambrosia Xplatyspina

native
Perennial herb

2003 Michael Charters

Amelanchier alnifolia Saskatoon serviceberry, Service berry

native
Shrub

2020 Bob Sweatt

Amelanchier alnifolia var. cusickii Saskatoon serviceberry, Service berry

native
Shrub

2020 Bob Sweatt

Amelanchier alnifolia var. pumila Dwarf service berry, Glabrous serviceberry

native
Shrub

2019 Richard Spjut

2009 Barry Breckling

Amelanchier pumila Dwarf service berry, Glabrous serviceberry

native
Shrub

2019 Richard Spjut

2009 Barry Breckling

Amelanchier alnifolia var. semiintegrifolia Pacific serviceberry, Service berry

native
Shrub

Amelanchier alnifolia var. semiintegrifolia

2021 Steve Matson

Amelanchier pallida Pale serviceberry, Pallid serviceberry, Sarvis

native
Shrub

2011 John Doyen

2010 Margo Bors

Amelanchier utahensis Pale leaved serviceberry, Service berry, Utah service berry

native
Shrub

2022 R.A. Chasey

2021 Robert Steers

2022 R.A. Chasey

Amelanchier utahensis var. utahensis Pale leaved serviceberry, Service berry, Utah service berry

native
Shrub

2022 R.A. Chasey

2021 Robert Steers

2022 R.A. Chasey

Cassiope mertensiana var. mertensiana Coville's serviceberry

native
Shrub

2023 David popp

Ammannia coccinea Purple ammannia, Red ammannia

native
Annual herb

2021 Jennifer Mo

2018 Ron Vanderhoff

2020 Ron Vanderhoff

Ammannia robusta Grand ammania, Grand redstem

native
Annual herb

2012 Ron Vanderhoff

2022 Donald Burk

2018 Ron Vanderhoff

Ammi majus Bishop's weed, Large bullwort

non-native
Annual, Biennial herb

2022 R.A. Chasey

2007 Luigi Rignanese

Ammi visnaga Bisnaga, Toothpickweed

non-native
Annual, Biennial herb

2016 Nicolle Herr

2020 Wildscape Restoration

Ammophila arenaria Beachgrass, European beach grass, European beachgrass

• invasive non-native
Perennial grass

2016 Steve Matson

Ammophila breviligulata ssp. breviligulata American beach grass, American beachgrass

non-native
Perennial grass

Ammophila breviligulata ssp. breviligulata

2014 Trent M. Draper

Ammoselinum giganteum Desert sand parsley, Desert umbel

native
Annual herb

2011 Steve Matson

Amorpha californica California false indigo, False indigo, Mock locust

native
Shrub

2019 Ron Vanderhoff

2022 Suzanne L. Weakley

2018 Jennifer Poore

Amorpha californica var. californica California false indigo

native
Shrub

2019 Ron Vanderhoff

2019 Bryant Baker

2019 Ron Vanderhoff

Amorpha californica var. napensis Indigo bush, Napa false indigo

• rare native
Shrub

2023 R.A. Chasey

2015 David Greenberger

2019 Michelle Karle

Amorpha canescens Leadplant

non-native
Shrub

Amorpha fruticosa Desert indigobush, Western false indigo

native
Shrub

2020 Ron Vanderhoff

2008 Gerald Carr

2018 Ron Vanderhoff

Ampelopsis brevipedunculata Amur peppervine

non-native
Perennial herb, Vine

Amphibromus nervosus Common swamp wallaby grass

non-native
Perennial grass

2017 Zoya Akulova

Amphipappus fremontii Chaffbush, Fremont's chaff bush

native
Shrub

2009 Steve Matson

Amphipappus fremontii var. fremontii Fremont's chaff bush

native
Shrub

2009 Steve Matson

Amphipappus fremontii var. spinosus Spiny fremont's chaffbush

native
Shrub

2017 John Doyen

2005 Keir Morse

2014 Richard Spellenberg

Amphiscirpus nevadensis Great basin bulrush

native
Perennial grasslike herb

2017 Steve Matson

2005 Steve Matson

2017 Steve Matson

Amsinckia douglasiana Douglas' fiddleneck

• rare native
Annual herb

2023 Matt Berger

2018 Richard Spjut

Amsinckia eastwoodiae Eastwood's fiddleneck

native
Annual herb

2021 R.A. Chasey

2019 Susan McDougall

Amsinckia furcata Forked fiddleneck

• rare native
Annual herb

2022 R.A. Chasey

2019 Matt Berger

2022 Mike Russler

Amsinckia vernicosa var. furcata Forked fiddleneck

• rare native
Annual herb

2022 R.A. Chasey

2019 Matt Berger

2022 Mike Russler

Amsinckia grandiflora Large flowered fiddleneck, Largeflowered fiddleneck

• rare native
Annual herb

2017 John Doyen

Amsinckia echinata Common fiddleneck

native
Annual herb

2020 Matt Berger

2019 Ron Vanderhoff

2021 David popp

Amsinckia intermedia Common fiddleneck

native
Annual herb

2020 Matt Berger

2019 Ron Vanderhoff

2021 David popp

Amsinckia menziesii var. intermedia Common fiddleneck

native
Annual herb

2020 Matt Berger

2019 Ron Vanderhoff

2021 David popp

Amsinckia lunaris Bent flowered fiddleneck, Bentflower fiddleneck

• rare native
Annual herb

2022 Michael L. Uhler

2022 R.A. Chasey

2022 Michael L. Uhler

Amsinckia glomerata Bugloss fiddleneck, Tarweed fiddleneck

native
Annual herb

2021 David popp

2023 Catherine Chang

2022 Catherine Chang

Amsinckia lycopsoides Bugloss fiddleneck, Tarweed fiddleneck

native
Annual herb

2021 David popp

2023 Catherine Chang

2022 Catherine Chang

Amsinckia straminea Bugloss fiddleneck, Tarweed fiddleneck

native
Annual herb

2021 David popp

2023 Catherine Chang

2022 Catherine Chang

Amsinckia menziesii Menzies' fiddleneck, Small flowered fiddleneck

native
Annual herb

2020 Ron Vanderhoff

2018 Gary McDonald

Amsinckia menziesii var. menziesii Menzies' fiddleneck, Small flowered fiddleneck

native
Annual herb

2020 Ron Vanderhoff

2018 Gary McDonald

Amsinckia retrorsa Rigid fiddleneck

native
Annual herb

2023 Aaron Schusteff

2023 Dianne Lake

Amsinckia spectabilis Seaside amsinckia, Seaside fiddleneck, Woolly breeches

native
Annual herb

2017 David Greenberger

2023 Toni Corelli

2020 Ken Hickman

Amsinckia spectabilis var. microcarpa Small fruit seaside fiddleneck

native
Annual herb

1997 Christopher L. Christie

1997 Christopher L. Christie

Amsinckia spectabilis var. spectabilis Seaside fiddleneck

native
Annual herb

2023 Toni Corelli

2015 Toni Corelli

2020 Ken Hickman

Amsinckia tessellata Bristly fiddleneck, Checker fiddleneck, Devil's lettuce

native
Annual herb

2022 Steve Matson

Amsinckia tessellata var. gloriosa Bristly fiddleneck, Large flowered devil's fiddleneck

native
Annual herb

2024 Ryan O'Dell

2019 Susan McDougall

2018 Richard Spjut

Amsinckia tessellata var. tessellata Bristly fiddleneck, Devil's lettuce

native
Annual herb

2014 Steve Matson

Amsinckia vernicosa Green fiddleneck

native
Annual herb

2018 Richard Spjut

2022 Mike Russler

2023 Jacob Smith

Plagiobothrys kingii Great Basin popcornflower

native
Annual herb

2008 Steve Matson

2019 Steve Matson

Plagiobothrys kingii var. harknessii Northern Great Basin popcornflower

native
Annual herb

2022 Tim Messick

2005 Steve Matson

Amsonia tomentosa Gray amsonia, Woolly amsonia, Woolly bluestar

native
Perennial herb

2006 Steve Matson

2008 Steve Matson

Amsonia tomentosa var. stenophylla Gray amsonia, Woolly amsonia, Woolly bluestar

native
Perennial herb

2006 Steve Matson

2008 Steve Matson

Amsonia tomentosa var. tomentosa Gray amsonia, Woolly amsonia, Woolly bluestar

native
Perennial herb

2006 Steve Matson

2008 Steve Matson

Anaphalis margaritacea Pearly everlasting

native
Perennial herb

2020 Bob Sweatt

2021 Ken Lunders

2014 James Gonsman

Anchusa azurea Blue alkanet, Italian bugloss

non-native
Perennial herb

2011 Debra L. Cook

2007 Luigi Rignanese

Anchusa italica Blue alkanet, Italian bugloss

non-native
Perennial herb

2011 Debra L. Cook

2007 Luigi Rignanese

Anchusa officinalis Alkanet, Common bugloss

non-native
Perennial herb

2015 Gerald Carr

Ancistrocarphus filagineus False neststraw, Woolly fishhooks

native
Annual herb

2020 Matt Berger

2019 Gerald Carr

2021 Jacob Smith

Ancistrocarphus keilii Santa ynez groundstar

• rare native
Annual herb

2023 Kristen Nelson

Cynoglossum occidentale Western hound's tongue

native
Perennial herb

2015 Steve Matson

Andropogon glomeratus Bushy bluestem

native
Perennial grass

2012 Steve Matson

2020 Ron Vanderhoff

Andropogon glomeratus var. scabriglumis Bushy beardgrass, Southwestern bushy bluestem

native
Perennial grass

2012 Steve Matson

2020 Ron Vanderhoff

Andropogon virginicus Broomsedge bluestem

non-native
Perennial grass

2021 Donald Burk

2020 David popp

2021 Donald Burk

Andropogon virginicus var. virginicus Broomsedge bluestem

non-native
Perennial grass

2021 Donald Burk

2019 David Greenberger

2021 David popp

Androsace elongata ssp. acuta California androsace, California rockjasmine

• rare native
Annual herb

2023 Catherine Chang

2022 Catherine Chang

2023 Helen Hancock

Androsace occidentalis Western rockjasmine

native
Annual herb

2016 Keir Morse

Androsace septentrionalis Pygmyflower rockjasmine

native
Annual, Perennial herb

2005 Steve Matson

2015 Steve Matson

Androsace septentrionalis ssp. subulifera Pygmyflower rockjasmine

native
Annual, Perennial herb

Androsace septentrionalis ssp. subulifera

2005 Steve Matson

2015 Steve Matson

Androstephium breviflorum Pink funnel lily, Small flowered androstephium

• rare native
Perennial herb (bulb)

2018 Stephen Hodges

2012 Cindy Hopkins

2010 Chris Winchell

Anelsonia eurycarpa Broad podded phoenicaulis, Daggerpod

native
Perennial herb

2012 Steve Matson

Anemone coronaria Lilies-of-the-field

non-native
Perennial herb

Anemone deltoidea Columbian windflower

native
Perennial herb

2011 Steve Matson

2021 Steve Matson

Anemone drummondii Drummond's anemone

native
Perennial herb

2019 Chasey

2018 Karen Swift

2022 Jamie Spielmann

Anemone drummondii var. lithophila Drummond's anemone

native
Perennial herb

2019 Chasey

2018 Karen Swift

2022 Jamie Spielmann

Anemone drummondii var. drummondii Drummond's anemone

native
Perennial herb

2021 Dee Shea Himes

2023 Alaine Arslan

2015 John Doyen

Anemone grayi Blue windflower

native
Perennial herb

2023 Steven Mills Glascock

2020 John Rawlings

2019 Adam Chasey

Anemone lyallii Little mountain thimbleweed

native
Perennial herb

2018 Adam Chasey

2011 Steven Perry

2022 Dana York

Anemone multifida Pacific anemone

native
Perennial herb

2022 Dana York

2013 Gerald Carr

2022 Dana York

Anemone multifida ssp. multifida Pacific anemone

native
Perennial herb

2022 Dana York

2013 Gerald Carr

2022 Dana York

Anemone multifida var. multifida Pacific anemone

• rare native
Perennial herb

2022 Dana York

2013 Gerald Carr

Anemone occidentalis Western anemone, Western pasque flower

native
Perennial herb

2019 Jane Cohn

2017 Art Clark

2020 Bob Sweatt

Pulsatilla occidentalis Western anemone, Western pasque flower

native
Perennial herb

2019 Jane Cohn

2017 Art Clark

2020 Bob Sweatt

Anemone oregana Blue windflower, Oregon anemone, Western wood anenome

native
Perennial herb

2011 Steve Matson

Anemone quinquefolia Blue windflower, Oregon anemone, Western wood anenome

native
Perennial herb

2011 Steve Matson

Anemone oregana var. oregana Blue windflower

native
Perennial herb

2008 Gerald Carr

2023 Dana York

Anemone tuberosa Tuber anemone

native
Perennial herb

2020 David Greenberger

2019 John Game

Anemopsis californica Yerba mansa

native
Perennial herb

SAURURACEAE

2022 Steve Matson

Anethum graveolens Dill

non-native
Annual herb

2011 Louis-M. Landry

Angelica archangelica Norwegian angelica

non-native
Perennial herb

Angelica arguta Lyall's angelica

native
Perennial herb

2020 Julie A. Kierstead

Angelica breweri Brewer's angelica

native
Perennial herb

2004 Steve Matson

2022 Steve Matson

Angelica californica California angelica

native
Perennial herb

2023 Bill Kress

2015 David Greenberger

2022 R.A. Chasey

Angelica callii Call's angelica

• rare native
Perennial herb

2014 Steve Matson

Angelica capitellata Ranger's Buttons, Swamp White Heads

native
Perennial herb

2007 Steve Matson

Sphenosciadium capitellatum Ranger's Buttons, Swamp White Heads

native
Perennial herb

2007 Steve Matson

Angelica genuflexa Kneeling angelica

native
Perennial herb

2014 Steve Matson

Angelica hendersonii Coast angelica, Henderson's angelica

native
Perennial herb

2020 Suzanne L. Weakley

2021 Jamie Spielmann

2022 Diana Wahl

Angelica kingii King's angelica

• rare native
Perennial herb

2015 Steve Matson

Angelica lineariloba Poison angelica

native
Perennial herb

2014 Steve Matson

Angelica lucida Seacoast angelica, Angelica, Wild celery

• rare native
Perennial herb

2017 Steve Matson

Angelica tomentosa Woolly angelica

native
Perennial herb

2022 Donald Burk

2017 MCOSD EDRR

Anisocarpus madioides Woodland madia

native
Perennial herb

2023 Suzanne L. Weakley

2023 R.A. Chasey

2016 Cynthia Powell

Madia madioides Woodland madia

native
Perennial herb

2023 Suzanne L. Weakley

2023 R.A. Chasey

2016 Cynthia Powell

Anisocarpus scabridus Scabrid alpine tarplant

• rare native
Perennial herb

2015 Julie A. Kierstead

Anisocoma acaulis Scale bud, Scalebud

native
Annual herb

2020 Steve Matson

2022 Steve Matson

Annona cherimola Cherimoya

non-native
Shrub

ANNONACEAE

Anoda cristata Violettas

non-native
Annual herb

2012 Zoya Akulova

Anomobryum julaceum Slender silver moss

• rare native
Moss

BRYACEAE

2018 Scot Loring

2013 Scot Loring

Anredera cordifolia Mignonette vine

non-native
Perennial herb, Vine

BASELLACEAE

2005 Luigi Rignanese

Antennaria argentea Silver pussytoes, Silvery everlasting, Silvery pussytoes

native
Perennial herb

2020 Bob Sweatt

2023 Alaine Arslan

Antennaria corymbosa Flat top pussytoes, Meadow pussytoes, Meadowpussytoes

native
Perennial herb

2005 Steve Matson

Antennaria dimorpha Gray cushion pussytoes, Low pussytoes

native
Perennial herb

2007 Gerald Carr

Antennaria dioica Stoloniferous pussytoes

non-native
Perennial herb

Antennaria flagellaris Stoloniferous pussy toes, Stoloniferous pussytoes

• rare native
Perennial herb

2014 Robert L.Carr

2000 Robert E. Preston, Ph.D.

Antennaria geyeri Geyer's pussytoes, Mountain pussytoes

native
Perennial herb

2022 Steve Matson

2006 Steve Matson

Antennaria howellii Howell's pussytoes

native
Perennial herb

2009 Robert L. Carr

Antennaria howellii ssp. canadensis Howell's pussytoes

native
Perennial herb

2009 Robert L. Carr

Antennaria howellii ssp. howellii Howell's pussytoes

native
Perennial herb

2009 Robert L. Carr

Antennaria lanata Woolly pussy toes

native
Perennial herb

2007 Matt Below

2006 Louis-M. Landry

Antennaria luzuloides Rush pussytoes, Silvery brown pussytoes

native
Perennial herb

2010 Gerald Carr

Antennaria luzuloides ssp. luzuloides Rush pussytoes

native
Perennial herb

2010 Gerald Carr

Antennaria marginata White margined pussytoes, Whitemargin pussytoes

• rare native
Perennial herb

2010 Duncan S. Bell

2009 Duncan S. Bell

Antennaria alpina Alpine pussytoes, Rocky mountain pussytoes

native
Perennial herb

2016 Steve Matson

2015 Steve Matson

Antennaria media Alpine pussytoes, Rocky mountain pussytoes

native
Perennial herb

2016 Steve Matson

2015 Steve Matson

Antennaria stenophylla Alpine pussytoes, Rocky mountain pussytoes

native
Perennial herb

2016 Steve Matson

2015 Steve Matson

Antennaria microphylla Littleleaf pussytoes

native
Perennial herb

2015 Barry Breckling

2007 Matt Below

2015 Barry Breckling

Antennaria parvifolia Small leaf pussytoes

native
Perennial herb

2009 Barry Breckling

2013 Jean Pawek

Antennaria pulchella Beautiful pussy toes, Beautiful pussytoes

• rare native
Perennial herb

2014 Steve Matson

Antennaria racemosa Raceme pussytoes, Racemose pussytoes

native
Perennial herb

2006 Gerald Carr

Antennaria rosea Rose pussytoes, Rosy everlasting, Rosy pussytoes

native
Perennial herb

2012 Steve Matson

Antennaria rosea ssp. confinis Rosy pussytoes

native
Perennial herb

2012 Steve Matson

Antennaria rosea ssp. rosea Rosy pussytoes

native
Perennial herb

2015 John Doyen

2019 David Greenberger

2018 David popp

Antennaria sawyeri Sawyer's pussy-toes

• rare native
Perennial herb

2014 Julie Kierstead Nelson

2019 Julie Kierstead Nelson

Antennaria suffrutescens Evergreen everlasting, Evergreen pussytoes

• rare native
Perennial herb

2013 Dana York

Antennaria umbrinella Brown pussytoes, Umbrinella pussytoes

native
Perennial herb

2003 Steve Matson

2021 Bob Sweatt

Anthemis arvensis Corn chamomile

non-native
Annual herb

2008 Keir Morse

2016 Richard Spellenberg

2008 Keir Morse

Anthemis cotula Dog fennel, Mayweed, dog fennel, Stinking chamomile

• invasive non-native
Annual herb

2017 Diane Etchison

2019 Nathan Taxel

2019 Dave Beller

Anthoceros fusiformis Hornwort

non-native
Hornwort

ANTHOCEROTACEAE

Anthoxanthum aristatum Annual vernal grass, Annual vernalgrass

non-native
Annual grass

2006 Gerald Carr

2014 Zoya Akulova (ssp. aristatum)

Anthoxanthum aristatum ssp. aristatum Annual vernal grass

non-native
Annual grass

2006 Gerald Carr

2021 Donald Burk

2006 Gerald Carr

Anthoxanthum nitens ssp. nitens Vanilla grass

• rare native
Perennial grass (rhizomatous)

2018 Matt Berger

2014 Zoya Akulova

2006 Louis-M. Landry

Hierochloe odorata Vanilla grass

• rare native
Perennial grass (rhizomatous)

2018 Matt Berger

2014 Zoya Akulova

2006 Louis-M. Landry

Anthoxanthum occidentale Califonria sweet grass, Vanilla grass

native
Perennial grass

2022 John Rawlings

2022 R.A. Chasey

2022 John Rawlings

Hierochloe occidentalis Califonria sweet grass, Vanilla grass

native
Perennial grass

2022 John Rawlings

2022 R.A. Chasey

2022 John Rawlings

Anthoxanthum odoratum Sweet vernal grass, Sweet vernalgrass

• invasive non-native
Annual, Perennial grass

2017 Steve Matson

Anthriscus caucalis Bur chervil

non-native
Annual herb, Vine

2017 Diane Etchison

2013 Toni Corelli

2020 Jennifer Mo

Anthyllis vulneraria Common kidneyvetch

non-native
Perennial herb

2006 Luigi Rignanese

2007 Dr. Amadej Trnkoczy

Anthyllis vulneraria ssp. rubiflora Common kidneyvetch

non-native
Perennial herb

2006 Luigi Rignanese

2007 Dr. Amadej Trnkoczy

Anthyllis vulneraria ssp. vulneraria Common kidneyvetch

non-native
Perennial herb

2006 Luigi Rignanese

2007 Dr. Amadej Trnkoczy

Mohavea confertiflora Ghost flower

native
Perennial herb

2010 Steve Matson

2023 R.A. Chasey

2010 Steve Matson

Antirrhinum cornutum Spurred snapdragon

native
Annual herb

2021 Charles Russell

2020 John Game

2021 Charles Russell

Antirrhinum coulterianum Coulter snapdragon, Coulter's snapdragon

native
Annual herb

2019 Lynn Sweet

2019 Aaron Echols

2019 Hailey Laskey

Antirrhinum filipes Tangled snapdragon, Twining snapdragon

native
Annual herb

2010 Steve Matson

2016 Steve Matson

Antirrhinum kelloggii Climbing snapdragon, Kellogg's snapdragon, Lax snapdragon

native
Annual herb

2024 David Strauch

2019 David Greenberger

2019 Ron Vanderhoff

Antirrhinum kingii King's snapdragon

native
Annual herb

2010 Steve Matson

2011 Steve Matson

Antirrhinum leptaleum Spurred snapdragon

native
Annual herb

2021 Mike Russler

2022 Mike Russler

Antirrhinum majus Common snapdragon, Garden snapdragon

non-native
Annual, Perennial herb

2011 Nick Kurzenko

2005 Louis-M. Landry

2012 Zoya Akulova

Mohavea breviflora Golden desert snapdragon

native
Perennial herb

2016 Steve Matson

Antirrhinum nuttallianum Island snapdragon, Nuttall's snapdragon

native
Annual, Perennial herb

2023 Caitlin Kreutz

2021 Ron Vanderhoff

2023 Caitlin Kreutz

Antirrhinum nuttallianum ssp. nuttallianum Nuttall's snapdragon

native
Annual, Perennial herb

Antirrhinum nuttallianum ssp. nuttallianum

2023 Ron Vanderhoff

2019 Ron Vanderhoff

Antirrhinum nuttallianum ssp. subsessile Nuttall's snapdragon

native
Annual, Perennial herb

Antirrhinum nuttallianum ssp. subsessile

2017 Steve Matson

2014 Steve Matson

Antirrhinum orontium Syrian snapdragon

non-native
Annual herb

2019 Julia King

2010 Aaron Schusteff

Misopates orontium Syrian snapdragon

non-native
Annual herb

2019 Julia King

2010 Aaron Schusteff

Antirrhinum ovatum Oval leaved snapdragon

• rare native
Annual herb

2013 Chris Winchell

2022 Mike Russler

Antirrhinum subcordatum Dimorphic snapdragon

• rare native
Annual herb

2019 Christian Schwarz

2015 Dean Wm. Taylor

Antirrhinum multiflorum

native
Perennial herb

2018 Michael Mitchell

Geoff Burleigh

2016 Kristin Sabo

Antirrhinum vexillo-calyculatum Wiry snapdragon

native
Annual herb

2020 Stacie Wolny

2017 Michelle Bosch

2020 Stacie Wolny

Antirrhinum vexillo-calyculatum ssp. breweri Wiry snapdragon

native
Annual herb

Antirrhinum vexillo-calyculatum ssp. breweri

2020 Stacie Wolny

2017 Michelle Bosch

2020 Stacie Wolny

Antirrhinum vexillocalyculatum Wiry snapdragon

native
Annual herb

2020 Stacie Wolny

2017 Michelle Bosch

2020 Stacie Wolny

Antirrhinum vexillocalyculatum var. vexillocalyculatum Wiry snapdragon

native
Annual herb

Antirrhinum vexillocalyculatum var. vexillocalyculatum

2020 Stacie Wolny

2017 Michelle Bosch

2020 Stacie Wolny

Antirrhinum vexillocalyculatum ssp. breweri Wiry snapdragon

native
Annual herb

2022 R.A. Chasey

2012 Aaron Arthur

2008 Keir Morse

Antirrhinum vexillocalyculatum ssp. intermedium Wiry snapdragon

native
Annual herb

Antirrhinum vexillocalyculatum ssp. intermedium

2021 Mike Russler

Antirrhinum vexillocalyculatum ssp. vexillocalyculatum Wiry snapdragon

native
Annual herb

Antirrhinum vexillocalyculatum ssp. vexillocalyculatum

2021 Dick Rawson

2022 R.A. Chasey

Antirrhinum virga Tall snapdragon

• rare native
Perennial herb

2022 Greg Kareofelas

2020 Paul Aigner

Anulocaulis annulatus Valley ringstem

native
Perennial herb

2016 Steve Matson

Apera interrupta Dense silky bent, Dense silkybent

non-native
Annual grass

2017 Robert Carr

Aphanes arvensis Western lady's mantle

native
Annual, Perennial herb

2019 Ron Vanderhoff

2017 Ron Vanderhoff

2023 R.A. Chasey

Aphanes occidentalis Western lady's mantle

native
Annual, Perennial herb

2019 Ron Vanderhoff

2017 Ron Vanderhoff

2023 R.A. Chasey

Aphanisma blitoides Aphanisma

• rare native
Annual herb

2019 Ron Vanderhoff

2019 Diane Etchison

Orobanche californica California orobanche

native
Perennial herb (parasitic)

2014 Steve Matson

2016 Andrea Pickart

Aphyllon californicum ssp. californicum Broomrape

native
Perennial herb (parasitic)

2017 David Greenberger

2016 Andrea Pickart

2009 Toni Corelli

Orobanche californica ssp. californica Broomrape

native
Perennial herb (parasitic)

2017 David Greenberger

2016 Andrea Pickart

2009 Toni Corelli

Orobanche californica ssp. feudgei California broomrape

native
Perennial herb (parasitic)

2014 Steve Matson

Orobanche californica ssp. grandis California broomrape

native
Perennial herb (parasitic)

2022 Joel A. Germond, Psy.D.

2002 Dean Wm. Taylor

Orobanche californica ssp. grayana Gray's california broom rape

native
Perennial herb (parasitic)

2014 Kirsten Bovee

2006 George W. Hartwell

Orobanche californica ssp. jepsonii Jepson's california broom rape

native
Perennial herb (parasitic)

2019 Ken Hickman

2018 Brian and Eileen Keelan

2019 Ken Hickman

Aphyllon cooperi Burroweed strangler

native
Perennial herb (parasitic)

2008 Steve Matson

Orobanche cooperi Burroweed strangler

native
Perennial herb (parasitic)

2008 Steve Matson

Orobanche ludoviciana var. cooperi Burroweed strangler

native
Perennial herb (parasitic)

2008 Steve Matson

Orobanche corymbosa Flat topped broom rape

native
Annual herb

2011 Steve Matson

2008 Steve Matson

2011 Steve Matson

Aphyllon epigalium

Annual herb

2018 Julie Kierstead Nelson

2021 David popp

Aphyllon epigalium ssp. epigalium Galium broomrape

Annual herb

2008 Gerald Carr

2022 Jamie Spielmann

2008 Gerald Carr

Aphyllon fasciculatum Clustered broomrape

native
Perennial herb (parasitic)

2016 Jim Xerogeanes

2023 Mary Ann Machi

Orobanche fasciculata Clustered broomrape

native
Perennial herb (parasitic)

2016 Jim Xerogeanes

2023 Mary Ann Machi

Aphyllon parishii ssp. brachylobum Short lobed broom rape

native
Perennial herb (parasitic)

2015 Paul Preston and Tim Lukaszewski

2015 Paul Preston

2011 Adam Searcy

Orobanche parishii ssp. parishii Parish broomrape

native
Perennial herb (parasitic)

2015 Steve Matson

Orobanche pinorum Pinewoods broom rape

native
Perennial herb (parasitic)

2023 Jamie Spielmann

2023 Julie A. Kierstead

2011 Ryan Batten

Aphyllon purpureum Purple broomrape

native
Annual herb

2022 Helen Hancock

2023 Katie O'Hara-Kelly

2022 Dana York

Orobanche purpurea Purple broomrape

Annual herb

2022 Helen Hancock

2023 Katie O'Hara-Kelly

2022 Dana York

Orobanche uniflora Purple broomrape

Annual herb

2022 Helen Hancock

2023 Katie O'Hara-Kelly

2022 Dana York

Orobanche uniflora var. purpurea Purple broomrape

Annual herb

2022 Helen Hancock

2023 Katie O'Hara-Kelly

2022 Dana York

Aphyllon robbinsii

Annual herb

2018 Dylan Neubauer

2015 Dylan Neubauer

Orobanche bulbosa Chaparral broomrape

native
Perennial herb (parasitic)

2022 Hunter Breck

2019 David Greenberger

2022 R.A. Chasey

Orobanche vallicola Valley broom rape

native
Annual herb

2021 Jennifer Mo

2017 Jennifer Poore

2012 Rachel Brownsey

Apiastrum angustifolium Mock parsley, Wild celery, Wild parsley

native
Annual herb

2020 Ron Vanderhoff

Apium graveolens Smallage, Garden celery

non-native
Annual, Biennial herb

2016 Joan Hampton

2019 Nathan Taxel

2016 Joan Hampton

Apium nodiflorum European marshwort, Smallage

non-native
Perennial herb

2020 Jennifer Mo

2007 Luigi Rignanese

2017 Friends of Five Creeks volunteers

Apocynum androsaemifolium Bitter dogbane, Spreading dogbane

native
Perennial herb

2003 Steve Matson

Apocynum cannabinum Indian hemp, Indianhemp dogbane, HEMP DOGBANE

native
Perennial herb

2019 Ron Vanderhoff

2015 Ron Vanderhoff

2021 Mike Russler

Aponogeton distachyos Cape pondweed

non-native
Perennial herb

APONOGETONACEAE

2021 Ron Vanderhoff

Aptenia cordifolia Baby sun rose, Dew plant

non-native
Perennial herb

2022 Ron Vanderhoff

Aquilegia eximia Serpentine columbine, Sticky columbine, Van Houtte's columbine

native
Perennial herb

2019 David Greenberger

2019 Ken Hickman

2021 Mike Russler

Aquilegia formosa Crimson columbine, Sitka columbine, Western columbine

native
Perennial herb

2022 Charles Russell

2019 Diane Etchison

2022 David Strauch

Aquilegia formosa ssp. truncata Crimson columbine, Sitka columbine, Western columbine

native
Perennial herb

2022 Charles Russell

2019 Diane Etchison

2022 David Strauch

Aquilegia pubescens Sierra columbine

native
Perennial herb

2020 Matt Berger

2019 Edwin Osada

2016 R. Adam Chasey

Aquilegia shockleyi Desert columbine

native
Perennial herb

2016 Steve Matson

Aquilegia vulgaris European columbine

non-native
Perennial herb

Arabidopsis thaliana Arabidopsis, Mouse ear, Mouseear cress

non-native
Annual herb

2010 Gerald Carr

Arabis aculeolata Waldo rock cress, Waldo rockcress

• rare native
Perennial herb

2007 Gerald Carr

2011 John Doyen

2023 Dana York

Arabis blepharophylla Coast rock cress

• rare native
Perennial herb

2017 Steve Matson

Arabis cusickii Cusick's rockcress

non-native
Perennial herb

Arabis eschscholtziana Eschscholtz's hairy rockcress

native
Perennial herb

2007 Gerald Carr

2016 Steve Matson

2007 Gerald Carr

Arabis hirsuta var. glabrata Eschscholtz's hairy rockcress

native
Perennial herb

2007 Gerald Carr

2016 Steve Matson

2007 Gerald Carr

Arabis holboellii Holboell's rock cress, Holboell's rockcress

native
Perennial herb

2007 Dr. Mark S. Brunell

2007 Norman Jensen

2009 Gary A. Monroe

Arabis mcdonaldiana Mcdonald's rock cress

• rare native
Perennial herb

2012 Gerald Carr

Arabis modesta Modest rock cress

• rare native
Perennial herb

2012 Gerald Carr

Arabis oregana Oregon rock cress, Oregon rockcress

• rare native
Perennial herb

2012 Gerald Carr

Arabis hirsuta Creamflower rockcress

native
Perennial herb

2009 Dr. Amadej Trnkoczy

Arabis pycnocarpa var. pycnocarpa Hairy fruit rock cress

native
Perennial herb

2016 Keir Morse

Aralia californica California spikenard, Elk's clover, Elkclover

native
Perennial herb

2022 Julie A. Kierstead

2020 Tri Do

2014 James Gonsman

Araucaria bidwillii Bunya bunya

non-native
Tree

2021 Ron Vanderhoff

Araucaria columnaris New caledonia pine

non-native
Tree

2010 Moorea Biocode

2017 Ron Vanderhoff

2017 Zoya Akulova

Araucaria cunninghamii Moreton bay pine

non-native
Tree

Araucaria heterophylla Norfolk island pine

non-native
Tree

Araujia sericifera Bladderflower

• invasive non-native
Perennial herb, Vine

2019 Ron Vanderhoff

2021 Jennifer Mo

2020 Ron Vanderhoff

Arbutus menziesii Madrono, Pacific madrone

native
Tree

2021 Cynthia Powell

2021 R.A. Chasey

2021 Hunter Breck

Arbutus unedo Strawberry tree

non-native
Tree

2018 Catherine Capone

Arceuthobium americanum American dwarf mistletoe, Lodgepole dwarf mistletoe, Lodgepole pine dwarf mistletoe

native
Perennial herb (parasitic)

2022 Donald Burk

2014 David popp

Arceuthobium campylopodum Golden mistletoe, Pine dwarf mistletoe, Pine mistletoe

native
Perennial herb (parasitic)

2016 Richard Spjut

2020 Charles Russell

2021 Mikhela Aiken

Arceuthobium divaricatum Golden mistletoe, Pine dwarf mistletoe, Pine mistletoe

native
Perennial herb (parasitic)

2016 Richard Spjut

2020 Charles Russell

2021 Mikhela Aiken

Arceuthobium occidentale Golden mistletoe, Pine dwarf mistletoe, Pine mistletoe

native
Perennial herb (parasitic)

2016 Richard Spjut

2020 Charles Russell

2021 Mikhela Aiken

Arceuthobium douglasii Douglas dwarf mistletoe, Douglas's dwarf mistletoe

native
Perennial herb (parasitic)

2017 Thayne Tuason

Arctium lappa Great burdock, Greater burdock

non-native
Perennial herb

2005 Louis-M. Landry

2006 Louis-M. Landry

Arctium minus Common burdock, Lesser burdock, Small burdock

non-native
Perennial herb

2018 Melissa Brooks Kraemer

2021 Donald Burk

Arctomecon californica California bearpoppy

non-native
Perennial herb

2013 John Doyen

Arctomecon merriamii Desert poppy, White bear poppy

• rare native
Perennial herb

2024 Jeff Bisbee

2020 Matt Berger

2024 Jeff Bisbee

Arctostaphylos andersonii Heartleaf manzanita, Santa cruz manzanita

• rare native
Shrub

2019 David Greenberger

2020 Susan McDougall

Arctostaphylos auriculata Mount Diablo manzanita

• rare native
Shrub

2006 Steve Matson

2016 Adam Chasey

2021 Mike Russler

Arctostaphylos bakeri Baker's manzanita

native
Shrub

2017 Adam Chasey

2021 Mike Russler

Arctostaphylos bakeri ssp. bakeri Baker's manzanita

• rare native
Shrub

2019 Susan McDougall

Arctostaphylos bakeri ssp. sublaevis The cedars manzanita

• rare native
Shrub

2021 R.A. Chasey

Arctostaphylos canescens Hoary manzanita

native
Shrub

2015 Robert Steers

2019 Elliot Gunnison

2018 Cynthia Powell

Arctostaphylos canescens ssp. canescens Hoary manzanita

native
Shrub

2020 Hunter Breck

2021 Hunter Breck

2019 Dana York

Arctostaphylos canescens ssp. sonomensis Rincon manzanita, Sonoma manzanita

native
Shrub

Arctostaphylos canescens ssp. sonomensis

2019 Susan McDougall

2021 Mike Russler

Arctostaphylos catalinae Santa catalina island manzanita

• rare native
Shrub

2020 Aaron Echols

2006 Steve Matson

2017 B.J. Dion

Arctostaphylos columbiana Hairy manzanita, Redwood manzanita

native
Tree, Shrub

2020 R.A. Chasey

2023 Dana York

2020 R.A. Chasey

Arctostaphylos confertiflora Santa rosa island manzanita

• rare native
Shrub

2006 Steve Matson

2019 Susan McDougall

Arctostaphylos crustacea Brittle leaf manzanita

native
Shrub

2019 Susan McDougall

2021 Cara Wilcox

2019 Cynthia Powell

Arctostaphylos crustacea ssp. crinita Crinite manzanita

native
Shrub

2022 David Krause

Arctostaphylos tomentosa ssp. crinita Crinite manzanita

native
Shrub

2022 David Krause

Arctostaphylos crustacea ssp. crustacea Brittle leaf manzanita

native
Shrub

2017 Steve Matson

Arctostaphylos crustacea ssp. eastwoodiana Eastwood's brittle-leaf manzanita

• rare native
Shrub

Arctostaphylos crustacea ssp. eastwoodiana

2021 Mike Russler

Arctostaphylos crustacea ssp. rosei Rose's manzanita

native
Shrub

2021 Cynthia Powell

2022 Michael Heine

2021 Cynthia Powell

Arctostaphylos crustacea ssp. subcordata Santa cruz island manzanita

• rare native
Shrub

Arctostaphylos crustacea ssp. subcordata

2020 David Greenberger

2018 Susan McDougall

Arctostaphylos tomentosa ssp. subcordata Santa cruz island manzanita

• rare native
Shrub

Arctostaphylos tomentosa ssp. subcordata

2020 David Greenberger

2018 Susan McDougall

Arctostaphylos cruzensis Arroyo de la cruz manzanita, La cruz manzanita

• rare native
Shrub

2006 Steve Matson

2019 R.A. Chasey

2022 David Krause

Arctostaphylos densiflora Vine hill manzanita

• rare native
Shrub

2021 Zoya Akulova

2021 Mike Russler

Arctostaphylos edmundsii Little sur manzanita

• rare native
Shrub

2006 Steve Matson

2022 Michael Heine

2017 Adam Chasey

Arctostaphylos franciscana Franciscan manzanita

• rare native
Shrub

2016 Adam Chasey

2022 Cynthia Powell

Arctostaphylos hookeri ssp. franciscana Franciscan manzanita

• rare native
Shrub

2016 Adam Chasey

2022 Cynthia Powell

Arctostaphylos gabilanensis Gabilan mountains manzanita

• rare native
Shrub

2022 Morgan Stickrod

Arctostaphylos glandulosa ssp. adamsii Adams' manzanita

native
Shrub

2003 Charles E. Jones

1993 David Graber

Arctostaphylos glandulosa ssp. crassifolia Costa baja manzanita, Del mar manzanita

• rare native
Shrub

Arctostaphylos glandulosa ssp. crassifolia

2019 Diane Etchison

2023 R.A. Chasey

2016 Chris Hendrickson

Arctostaphylos glandulosa Cushing manzanita

native
Shrub

2019 Susan McDougall

2016 Dana York

Arctostaphylos glandulosa ssp. cushingiana Cushing manzanita

native
Shrub

Arctostaphylos glandulosa ssp. cushingiana

2019 Susan McDougall

2016 Dana York

Arctostaphylos glandulosa ssp. gabrielensis San gabriel manzanita

• rare native
Shrub

Arctostaphylos glandulosa ssp. gabrielensis

2021 Rico Ramirez

2019 Manzanita Dictionary

Arctostaphylos glandulosa ssp. glandulosa Eastwood manzanita, Eastwood's manzanita

native
Shrub

Arctostaphylos glandulosa ssp. glandulosa

2021 Ron Vanderhoff

2020 Ron Vanderhoff

2021 Ron Vanderhoff

Arctostaphylos glandulosa ssp. zacaensis Eastwood manzanita, Eastwood's manzanita

native
Shrub

Arctostaphylos glandulosa ssp. zacaensis

2021 Ron Vanderhoff

2020 Ron Vanderhoff

2021 Ron Vanderhoff

Arctostaphylos glandulosa ssp. mollis Eastwood's manzanita, Transverse range manzanita

native
Shrub

2021 Mike Russler

2021 Rico Ramirez

2021 Arlee Montalvo

Arctostaphylos glauca Big berry manzanita, Bigberry manzanita

native
Tree, Shrub

2020 Ron Vanderhoff

2018 Ron Vanderhoff

Arctostaphylos glutinosa Schreiber's manzanita

• rare native
Shrub

2011 Neal Kramer

2011 Joey Malone

2011 Neal Kramer

Arctostaphylos hispidula Howell's manzanita

• rare native
Shrub

2023 Dana York

2019 Adam Chasey

2023 Dana York

Arctostaphylos hookeri Hooker's manzanita, Raven's manzanita

native
Tree, Shrub

2021 Mike Russler

Arctostaphylos hookeri ssp. hearstiorum Hearst's manzanita

• rare native
Tree, Shrub

2006 Steve Matson

2019 Susan McDougall

Arctostaphylos hookeri ssp. hookeri Hooker's manzanita, Monterey manzanita

• rare native
Shrub

2019 Susan McDougall

2021 Patrick Furtado

Arctostaphylos hooveri Hoover's manzanita

• rare native
Shrub

2019 Susan McDougall

2019 R.A. Chasey

Arctostaphylos imbricata San bruno mountain manzanita, San bruno mtn. manzanita

• rare native
Shrub

2020 Mike Russler

2022 Cynthia Powell

2019 Patrick Furtado

Arctostaphylos insularis Island manzanita

native
Shrub

2014 Steve Matson

Arctostaphylos klamathensis Klamath manzanita

• rare native
Shrub

2015 Steve Matson

Arctostaphylos luciana Santa lucia manzanita

• rare native
Shrub

2006 Steve Matson

Arctostaphylos malloryi Balaklala manzanita, Mallory's manzanita

• rare native
Shrub

2022 Julie A. Kierstead

2018 Michael Dolan

2022 Julie A. Kierstead

Arctostaphylos manzanita Common manzanita

native
Shrub

2022 Cynthia Powell

2019 R.A. Chasey

2019 Julie Kierstead Nelson

Arctostaphylos manzanita ssp. elegans Konocti manzanita

• rare native
Shrub

2017 Robert Barnard

2008 Rodney W. Lacey

Arctostaphylos manzanita ssp. glaucescens White leaf common manzanita, Whiteleaf manzanita

native
Shrub

Arctostaphylos manzanita ssp. glaucescens

2020 R.A. Chasey

Arctostaphylos manzanita ssp. laevigata Contra costa manzanita

• rare native
Shrub

2019 Susan McDougall

2020 R.A. Chasey

Arctostaphylos manzanita ssp. manzanita Common Manzanita

native
Shrub

2021 R.A. Chasey

2018 Adam Chasey

2015 James Gonsman

Arctostaphylos manzanita ssp. roofii Roof's manzanita

native
Shrub

2020 Susan McDougall

Arctostaphylos manzanita ssp. wieslanderi Wieslander's manzanita

native
Shrub

Arctostaphylos manzanita ssp. wieslanderi

2018 Julie Kierstead Nelson

2020 R.A. Chasey

Arctostaphylos mewukka Indian manzanita

native
Shrub

2021 Mike Russler

2018 David popp

2015 Nathan Feldman

Arctostaphylos pastillosa Indian manzanita

native
Shrub

2021 Mike Russler

2018 David popp

2015 Nathan Feldman

Arctostaphylos mewukka ssp. mewukka Indian manzanita

native
Shrub

2018 David popp

2019 Dana York

2017 Robert Barnard

Arctostaphylos mewukka ssp. truei True's manzanita

• rare native
Shrub

2020 R.A. Chasey

2021 Mike Russler

2020 R.A. Chasey

Arctostaphylos montana Mt. tamalpais manzanita

native
Shrub

2018 David Greenberger

2021 Mike Russler

2019 Susan McDougall

Arctostaphylos hookeri ssp. montana Mt. Tamalpais manzanita

• rare native
Shrub

2018 David Greenberger

2019 Adam Chasey

Arctostaphylos montana ssp. montana Mt. Tamalpais manzanita

• rare native
Shrub

2018 David Greenberger

2019 Adam Chasey

Arctostaphylos montana ssp. ravenii Presidio manzanita

• rare native
Shrub

2019 Susan McDougall

2006 Heath McAllister

2019 Susan McDougall

Arctostaphylos montaraensis Montara manzanita

• rare native
Shrub

2006 Steve Matson

2019 Susan McDougall

Arctostaphylos montereyensis Monterey manzanita, Toro manzanita

• rare native
Shrub

2022 R.A. Chasey

2022 Cynthia Powell

2020 Mike Russler

Arctostaphylos morroensis Morro manzanita

• rare native
Shrub

2020 David Greenberger

Arctostaphylos myrtifolia Ione manzanita

• rare native
Shrub

2006 Steve Matson

Arctostaphylos nevadensis Pine mat manzanita, Pinemat manzanita

native
Shrub

2015 Steve Matson

2005 Steve Matson

Arctostaphylos nevadensis ssp. nevadensis Pine-mat manzanita

native
Shrub

Arctostaphylos nevadensis ssp. nevadensis

2015 Steve Matson

2005 Steve Matson

2015 Steve Matson

Arctostaphylos nissenana Eldorado manzanita, Nissenan manzanita

• rare native
Shrub

2019 Matt Berger

Arctostaphylos nortensis Del norte manzanita

• rare native
Shrub

2020 Susan McDougall

Arctostaphylos nummularia Glossy leaved manzanita, Glossyleaf manzanita, Shatterberry

native
Shrub

2018 Cynthia Powell

2022 R.A. Chasey

2021 Mike Russler

Arctostaphylos mendocinoensis Pygmy manzanita

• rare native
Shrub

2007 Steve Matson

2023 R.A. Chasey

Arctostaphylos nummularia ssp. mendocinoensis Pygmy manzanita

• rare native
Shrub

Arctostaphylos nummularia ssp. mendocinoensis

2007 Steve Matson

2023 R.A. Chasey

Arctostaphylos nummularia ssp. nummularia Shatterberry

native
Shrub

Arctostaphylos nummularia ssp. nummularia

2020 R.A. Chasey

2021 Mike Russler

2020 R.A. Chasey

Arctostaphylos obispoensis Bishop manzanita, Serpentine manzanita

• rare native
Shrub

2019 Susan McDougall

2021 Mike Russler

Arctostaphylos ohloneana Ohlone manzanita

• rare native
Shrub

2011 Dylan Neubauer

2011 Joey Malone

2011 Neal Kramer

Arctostaphylos osoensis Oso manzanita

• rare native
Shrub

2020 David Greenberger

2022 David Krause

2019 Susan McDougall

Arctostaphylos otayensis Otay manzanita

• rare native
Shrub

2021 Ron Vanderhoff

Arctostaphylos pacifica Pacific manzanita

• rare native
Shrub

2012 Terrence Gosliner

2020 Mike Russler

2016 Richard Chasey

Arctostaphylos pajaroensis Pajaro manzanita

• rare native
Shrub

2020 Mike Russler

2022 Michael Heine

2020 Mike Russler

Arctostaphylos pallida Alameda manzanita, Oakland hills manzanita, Pallid manzanita

• rare native
Shrub

2016 Neal Kramer

2020 Ian Donahue

2020 Scott Cox

Arctostaphylos parryana Parry manzanita

native
Shrub

2020 Janith Johnson

2016 Keir Morse

2023 Richard Spjut

Arctostaphylos parryana ssp. desertica Desert manzanita

native
Shrub

2016 Keir Morse

2016 Tom Chester

Arctostaphylos parryana ssp. parryana Parry manzanita

native
Shrub

2021 Mike Russler

2016 Brian Powell

Arctostaphylos patula Green leaf manzanita, Greenleaf manzanita

native
Shrub

2003 Steve Matson

2017 Elysa DuCharme

2019 David Magney

Arctostaphylos pechoensis Pecho manzanita

• rare native
Shrub

2020 Susan McDougall

2020 Mike Russler

Arctostaphylos pilosula La panza manzanita, Santa Margarita manzanita

• rare native
Shrub

2020 David Greenberger

2020 Mike Russler

Arctostaphylos pringlei Pringle manzanita

native
Shrub

2017 Joey Santore

2021 R.A. Chasey

Arctostaphylos pringlei ssp. drupacea Pink bracted manzanita, Pinkbracted manzanita

native
Shrub

2019 Matt Berger

2017 Joey Santore

2019 Matt Berger

Arctostaphylos pumila Dune manzanita, Sandmat manzanita

• rare native
Shrub

2020 David Greenberger

2022 Mary Conway

Arctostaphylos pungens Mexican manzanita, Pointleaf manzanita

native
Tree, Shrub

2016 James Gonsman

2014 James Gonsman

2020 Mike Russler

Arctostaphylos purissima La purisima manzanita, La purissima manzanita

• rare native
Shrub

2019 Susan McDougall

2016 George Williams

2019 Bryant Baker

Arctostaphylos rainbowensis Rainbow manzanita

• rare native
Shrub

2022 Nathan Taylor

2022 Julie Ann Watson

2014 Ron Vanderhoff

Arctostaphylos refugioensis Refugio manzanita

• rare native
Shrub

2021 Bryant Baker

2020 David Greenberger

2021 Bryant Baker

Arctostaphylos regismontana Kings mountain manzanita, Kings mtn. manzanita

• rare native
Shrub

2020 David Greenberger

2020 R.A. Chasey

2020 David Greenberger

Arctostaphylos rudis Sand mesa manzanita, Shagbark manzanita

• rare native
Shrub

2020 David Greenberger

2019 Bryant Baker

Arctostaphylos sensitiva Glossyleaf manzanita

native
Shrub

2019 Cynthia Powell

2018 Ken Hickman

2019 Cynthia Powell

Arctostaphylos silvicola Bonny doon manzanita, Silverleaf manzanita

• rare native
Shrub

2021 Cara Wilcox

2022 Cara Wilcox

2021 Cara Wilcox

Arctostaphylos stanfordiana Stanford's manzanita

native
Tree, Shrub

2019 David Magney

2021 R.A. Chasey

2019 David Magney

Arctostaphylos stanfordiana ssp. decumbens Rincon manzanita

• rare native
Shrub

Arctostaphylos stanfordiana ssp. decumbens

2021 Mike Russler

2021 R.A. Chasey

Arctostaphylos stanfordiana ssp. raichei Raiche's manzanita

• rare native
Shrub

Arctostaphylos stanfordiana ssp. raichei

2006 Steve Matson

2019 David Magney

2020 R.A. Chasey

Arctostaphylos stanfordiana ssp. stanfordiana Stanford manzanita, Stanford's manzanita

native
Tree, Shrub

Arctostaphylos stanfordiana ssp. stanfordiana

2021 R.A. Chasey

2021 Mike Russler

Arctostaphylos tomentosa Woolly leaf manzanita, Woollyleaf manzanita

native
Shrub

2020 David Greenberger

2023 Ron Vanderhoff

Arctostaphylos tomentosa ssp. bracteosa Bristly twig manzanita, Woollyleaf manzanita

native
Shrub

2019 Adam Chasey

2016 Lynn Overtree

2020 Mike Russler

Arctostaphylos tomentosa ssp. daciticola Dacite manzanita

• rare native
Shrub

Arctostaphylos tomentosa ssp. daciticola

2020 David Greenberger

2019 Susan McDougall

2020 David Greenberger

Arctostaphylos tomentosa ssp. tomentosa Woolly leaf manzanita, Woollyleaf manzanita

native
Shrub

2020 David Greenberger

2019 Mary Conway

Arctostaphylos uva-ursi Bearberry manzanita, Kinnikinnick

native
Shrub

2016 Steve Matson

Arctostaphylos virgata Bolinas manzanita, Marin manzanita

• rare native
Shrub

2023 Suzanne L. Weakley

2020 Mike Russler

Arctostaphylos viridissima Mcminn's manzanita, White haired manzanita

• rare native
Shrub

2020 David Greenberger

2019 Susan McDougall

2009 Keir Morse

Arctostaphylos viscida Sticky whiteleaf manzanita

native
Tree, Shrub

2011 Steve Matson

Arctostaphylos viscida ssp. mariposa Mariposa manzanita

native
Tree, Shrub

2017 Sarah Williams

2024 Mike Russler

2019 Cynthia Powell

Arctostaphylos viscida ssp. pulchella Sticky whiteleaf manzanita, White leaf manzanita

native
Tree, Shrub

2022 Ryan O'Dell

2017 Robert Barnard

2019 Adam Chasey

Arctostaphylos viscida ssp. viscida Smooth white leaf manzanita, Sticky whiteleaf manzanita

native
Tree, Shrub

2008 Steve Matson

2021 Mike Russler

2018 Richard Spjut

Arctostaphylos Xhelleri Hybrid manzanita

native
Shrub

2017 Jeff Bisbee

2012 Jeff Bisbee

Arctostaphylos media Hybrid manzanita

native
Tree, Shrub

2020 Dana York

2018 Susan McDougall

Arctotheca calendula Cape weed

• invasive non-native
Annual, Perennial herb

2017 Derrick Mathews

2021 Patrick Hoffman

2016 Andrea Pickart

Arctotheca prostrata prostrate cape weed, creeping capeweed

• invasive non-native
Annual, Perennial herb

2024 David Wolfson

2020 Lenihan Mazur

2021 David Wolfson

Arctotis grandis Blue eyed african daisy

non-native
Perennial herb

2007 John M. Taylor

Arctotis stoechadifolia Blue-eyed african daisy

non-native
Perennial herb

2007 John M. Taylor

Arctotis venusta Blue-eyed african daisy

non-native
Perennial herb

2007 John M. Taylor

Arenaria lanuginosa var. saxosa Rock sandwort

• rare native
Perennial herb

2007 John Doyen

2008 Michael Charters

2009 Thomas Stoughton

Arenaria paludicola Marsh sandwort

• rare native
Perennial herb

2011 CNPS, San Luis Obispo Chapter

2013 Anuja Parikh and Nathan Gale

2012 Chris Winchell

Arenaria leptoclados Thymeleaf sandwort

non-native
Annual herb

2006 Steve Matson

2008 Steve Matson

2006 Steve Matson

Arenaria serpyllifolia var. serpyllifolia Thymeleaf sandwort

non-native
Annual herb

Arenaria serpyllifolia var. serpyllifolia

2008 Steve Matson

2006 Steve Matson

2008 Steve Matson

Argemone corymbosa Leafy prickly poppy, Mohave prickly poppy, Mojave pricklypoppy

native
Perennial herb

2016 James Gonsman

2014 Rosie Flathers

Argemone mexicana Mexican pricklypoppy

non-native
Annual, Perennial herb

Argemone munita Chicalote, Prickly poppy

native
Annual, Perennial herb

2023 Caitlin Kreutz

2021 Mike Russler

Argemone munita ssp. rotundata Chicalote, Prickly poppy

native
Annual, Perennial herb

2023 Caitlin Kreutz

2021 Mike Russler

Argyranthemum foeniculaceum Canary island marguerite, Dill daisy

non-native
Perennial herb

2018 Ron Vanderhoff

2016 Ron Vanderhoff

2018 Ron Vanderhoff

Argyranthemum frutescens Marguerite

non-native
Perennial herb

2021 Ron Vanderhoff

2012 Zoya Akulova

2007 Louis-M. Landry

Argyrochosma jonesii Jones' false cloak fern

native
Fern

2006 Steve Matson

2019 Steve Matson

Argyrochosma limitanea Southwestern false cloak fern

native
Fern (rhizomatous)

2017 John Doyen

Arisaema triphyllum Jack in the pulpit

non-native
Perennial herb

Aristida adscensionis Six weeks three awn, Sixweeks threeawn

native
Annual grass

2023 Keir Morse

2016 James Bailey

Aristida californica California threeawn

native
Perennial grass

2013 Steve Matson

2012 Keir Morse

Aristida dichotoma Churchmouse threeawn

non-native
Annual grass

2013 Steve Matson

Aristida divaricata Poverty three awn, Spreading threeawn

native
Perennial grass

2013 Steve Matson

Aristida oligantha Oldfield three awn, Prairie threeawn

native
Annual grass

2013 Steve Matson

2020 David popp

Aristida purpurea Purple three awn, Purple threeawn

native
Perennial grass

2019 Ron Vanderhoff

2016 Keir Morse

Aristida purpurea var. fendleriana Fendler three awn, Fendler's threeawn

native
Perennial grass

2012 Steve Matson

2013 Steve Matson

2013 James M. Andre

Aristida purpurea var. longiseta Red three awn

native
Perennial grass

2017 Gerald Carr

Aristida purpurea var. nealleyi Nealley three awn, Reverchon three awn

native
Perennial grass

2015 Steve Matson

Aristida purpurea var. parishii Parish three awn, Parish's threeawn

native
Perennial grass

2016 Keir Morse

Aristida purpurea var. purpurea Purple three awn, Purple threeawn

native
Perennial grass

2010 Michelle Cloud-Hughes

2013 Steve Matson

Aristida purpurea var. wrightii Wright three awn, Wright's threeawn

native
Perennial grass

Aristida ternipes var. gentilis Spidergrass

native
Perennial grass

2023 Donald Burk

2019 David popp

2020 Chris Velez

Aristocapsa insignis Indian valley spine flower, Indian valley spineflower

• rare native
Annual herb

2023 James Bailey

2024 Mike Russler

Aristolochia californica California pipe vine, California pipevine, Dutchman's pipe

native
Vine, Shrub

2015 Judy and Barry Breckling

2018 John Rusk

2019 Ramona Robison

Armeria maritima Thrift seapink

native
Perennial herb

2016 Steve Matson

2013 James Gonsman

2021 Mary Sue Ittner

Armeria maritima ssp. andina Thrift seapink

native
Perennial herb

2016 Steve Matson

2013 James Gonsman

2021 Mary Sue Ittner

Armeria maritima ssp. sibirica Thrift seapink

native
Perennial herb

2016 Steve Matson

2013 James Gonsman

2021 Mary Sue Ittner

Armeria maritima ssp. californica California sea pink, California seapink, Sea pink or thrift

native
Perennial herb

2022 R.A. Chasey

2017 Mary Sue Ittner

2019 Amy Rapport

Armoracia rusticana Horseradish

non-native
Perennial herb

2022 David Leyva

2011 Louis-M. Landry

2010 Cristian Singer

Arnica cernua Serpentine arnica

• rare native
Perennial herb (rhizomatous)

2023 Dana York

2019 Joey Santore

Arnica chamissonis Chamisso arnica

native
Perennial herb

2014 Steve Matson

Arnica cordifolia Heart leaved arnica, Heartleaf arnica

native
Perennial herb

2022 Cynthia Powell

2006 Keir Morse

2003 Steve Matson

Arnica dealbata Mock leopardbane

native
Perennial herb

2018 Matt Berger

2017 John Doyen

2023 Julie A. Kierstead

Arnica discoidea Rayless arnica

native
Perennial herb

2020 Ken Hickman

2019 David Magney

2020 Eliezer Margolis

Arnica fulgens Foothill arnica, Hillside arnica

• rare native
Perennial herb (rhizomatous)

2011 Robert L. Carr

Arnica lanceolata Clasping arnica

native
Perennial herb

2015 Jim Bearden

2014 Steve Matson

Arnica amplexicaulis Clasping arnica

native
Perennial herb

2014 Steve Matson

Arnica lanceolata ssp. prima Clasping arnica

native
Perennial herb

2014 Steve Matson

Arnica latifolia Broadleaf arnica, Mountain arnica

native
Perennial herb

2019 Bob Sweatt

Arnica longifolia Longleaf arnica, Seep spring arnica

native
Perennial herb

2023 R.A. Chasey

2020 Bob Sweatt

Arnica mollis Cordilleran arnica, Cordillerean anica, Hairy arnica

native
Perennial herb

2019 David Greenberger

2021 Mike Russler

Arnica nevadensis Nevada arnica, Sierra arnica

native
Perennial herb

2022 Melissa Harbert

2021 Mike Russler

2005 Steve Matson

Arnica ovata Sticky leaf arnica

native
Perennial herb

2012 Dana York

2009 Barry Breckling

Arnica parryi Nodding arnica, Parry's arnica

native
Perennial herb

2022 Susan McDougall

2007 John Doyen

2023 Alaine Arslan

Arnica sororia Soro arnica, Twin arnica

native
Perennial herb (rhizomatous)

Robert L. Carr 2013

2005 Steve Tyron

Robert L. Carr 2013

Arnica spathulata Klamath arnica

• rare native
Perennial herb (rhizomatous)

2007 Gerald Carr

2023 Dana York

Arnica venosa Shasta county arnica, Veiny arnica

• rare native
Perennial herb (rhizomatous)

2010 Julie A. Kierstead

2019 Julie Kierstead Nelson

Arnica viscosa Mt. shasta arnica

• rare native
Perennial herb (rhizomatous)

2023 Dana York

2022 Dana York

2023 Dana York

Arrhenatherum elatius Tall oatgrass

non-native
Perennial grass

2020 Doug Allshouse

2021 John Rawlings

2019 Julian Geoghegan

Artemisia abrotanum Southernwood

non-native
Shrub

2007 Louis-M. Landry

2005 Louis-M. Landry

Artemisia absinthium Absinthium

non-native
Shrub

2006 Louis-M. Landry

Artemisia annua Sweet annie

non-native
Annual herb

2021 Thomas Reyes

2007 Luigi Rignanese

2005 Luigi Rignanese

Artemisia arbuscula Black sagebrush, Low sagebrush

native
Shrub

2017 Steve Matson

Artemisia arbuscula ssp. arbuscula Dwarf sagebrush, Little sagebrush, Low sagebrush

native
Shrub

2022 Dana York

2016 Richard Spjut

Artemisia arbuscula ssp. longicaulis Little sagebrush

native
Shrub

2017 Steve Matson

Artemisia arbuscula ssp. longiloba Little sagebrush

native
Shrub

2017 Steve Matson

Artemisia arbuscula ssp. thermopola Little sagebrush, Warm springs low sagebrush

native
Shrub

2015 David popp

2018 Dean Wm. Taylor

Artemisia biennis Biennial sagewort

non-native
Annual, Perennial herb

2017 Adonis Tate

2017 Ron Vanderhoff

2023 R.A. Chasey

Artemisia bigelovii Bigelow sagebrush, Flat sagebrush

native
Shrub

2022 Steve Matson

Artemisia borealis ssp. richardsoniana Boreal sage

native
Perennial herb

2022 Dana York

2011 Dana York

Artemisia borealis ssp. borealis Boreal sage

native
Perennial herb

2023 Dana York

2011 Dana York

Artemisia californica California sagebrush, Coast sagebrush, Coastal sage brush

native
Shrub

2018 James Gonsman

2019 Aaron Echols

2018 Ron Vanderhoff

Artemisia campestris Field sagewort

native
Perennial herb

2010 Louis-M. Landry

2012 Richard Spellenberg

Artemisia campestris ssp. caudata Field sagewort

native
Perennial herb

2010 Louis-M. Landry

2012 Richard Spellenberg

Artemisia campestris var. borealis Field sagewort

native
Perennial herb

2010 Louis-M. Landry

2012 Richard Spellenberg

Artemisia cana Silver sagebrush

native
Shrub

2013 Steve Matson

2020 Steve Matson

Artemisia cana ssp. bolanderi Bolander silver sagebrush, Bolander's silver sagebrush

native
Shrub

2013 Steve Matson

2020 Steve Matson

Artemisia douglasiana California mugwort, Douglas' sagewort

native
Perennial herb

2022 Ron Vanderhoff

2016 Glen Schneider

2021 Mike Russler

Artemisia dracunculus Herbaceous sagewort, Pinon wormwood, Tarragon

native
Perennial herb

2022 Steve Matson

Artemisia filifolia Sand sagebrush

non-native
Shrub

Artemisia ludoviciana Mugwort, Silver wormwood

native
Perennial herb

2019 Bob Sweatt

2011 Steve Matson

Artemisia ludoviciana ssp. albula Silver wormwood, White mugwort, White sagebrush

native
Perennial herb

2011 Steve Matson

2019 Michelle Tollett

Artemisia ludoviciana ssp. candicans Gray mugwort, White sagebrush

native
Perennial herb

2018 Susan McDougall

Artemisia ludoviciana ssp. incompta Mountain mugwort, Western mugwort, White sagebrush

native
Perennial herb

2006 Steve Matson

2019 Diane Etchison

2017 Keir Morse

Artemisia ludoviciana ssp. ludoviciana Silver wormwood, White sagebrush

native
Perennial herb

2013 Steve Matson

2023 Bob Steele

2013 Steve Matson

Artemisia michauxiana Lemon sagewort, Michally sagewort

native
Perennial herb

2014 Steve Matson

Artemisia nesiotica Island sage brush, Island sagebrush

• rare native
Shrub

2012 Gary A. Monroe

2006 Vince Scheidt

Artemisia norvegica ssp. saxatilis Boreal sagewort, Mountain sage

native
Perennial herb

2006 Steve Matson

Artemisia norvegica var. saxatilis Boreal sagewort, Mountain sage

native
Perennial herb

2006 Steve Matson

Artemisia nova Black sagebrush

native
Shrub

2012 Steve Matson

Artemisia palmeri San diego sagewort

• rare native
Shrub

2016 Chris Hendrickson

2018 Angelique Herman

Artemisia pycnocephala Beach sagewort, Coastal sagewort

native
Perennial herb

2019 Patrick Furtado

2021 Zoya Akulova-Barlow

2023 Cynthia Powell

Artemisia rothrockii Rothrock sagebrush

native
Shrub

2015 Steve Matson

2012 Steve Matson

Artemisia spiciformis Snowfield sagebrush

native
Perennial herb

2015 Steve Matson

Artemisia spinescens Bud sage, Budsage

native
Shrub

2015 Steve Matson

Picrothamnus desertorum Bud sage, Budsage

native
Shrub

2015 Steve Matson

Artemisia suksdorfii Coastal mugwort

native
Perennial herb

2020 Susan McDougall

2019 Jonathan Lee

1995 Saint Mary's College of California

Artemisia tridentata Big sagebrush, Common sagebrush

native
Shrub

2023 Ryan O'Dell

2008 Thomas Stoughton

2022 Cynthia Powell

Artemisia tridentata ssp. tridentata Basin big sagebrush

native
Shrub

2020 David Greenberger

2021 Bob Sweatt

2016 James Gonsman

Artemisia tridentata ssp. vaseyana Mountain big sagebrush, Mountain sagebrush

native
Shrub

2017 David popp

2003 Christopher L. Christie

2017 David popp

Artemisia tridentata var. vaseyana Mountain big sagebrush, Mountain sagebrush

native
Shrub

2017 David popp

2003 Christopher L. Christie

2017 David popp

Artemisia tridentata ssp. wyomingensis Wyoming big sagebrush, Wyoming sagebrush

native
Shrub

2000 Gary A. Monroe

2012 Jean Pawek

2000 Gary A. Monroe

Artemisia tripartita Threetip sagebrush

native
Shrub

2013 Dean Taylor

Artemisia tripartita ssp. tripartita Threetip sagebrush

• rare native
Shrub

2013 Dean Taylor

Artemisia vulgaris Common wormwood

non-native
Perennial herb, Shrub

2007 Louis-M. Landry

2005 Louis-M. Landry

Arthrocnemum subterminale Parish's glasswort

native
Perennial herb

2020 Sandy Leatherman

2021 Denise Defreese

2020 Ron Vanderhoff

Salicornia subterminalis Parish's glasswort

native
Perennial herb

2020 Sandy Leatherman

2021 Denise Defreese

2020 Ron Vanderhoff

Arum italicum Italian lords and ladies

non-native
Perennial herb

2021 Donald Burk

2022 Jenny Gossett

2019 Joerg Lohse

Arum italicum ssp. italicum Italian lords and ladies

non-native
Perennial herb

2021 Donald Burk

2022 Jenny Gossett

2019 Joerg Lohse

Arum palaestinum Solomon's lily

non-native
Perennial herb

2022 Jennifer Mo

2023 Ron Vanderhoff

2022 Jennifer Mo

Aruncus dioicus goatsbeard

native
Perennial herb

2021 Julie A. Kierstead

2020 Julie A. Kierstead

2006 Dr. Amadej Trnkoczy

Aruncus dioicus var. vulgaris goatsbeard

native
Perennial herb

2021 Julie A. Kierstead

2020 Julie A. Kierstead

2006 Dr. Amadej Trnkoczy

Aruncus dioicus var. acuminatus goatsbeard

native
Perennial herb

2014 Matt Berger

2019 Richard Spjut

2013 John Doyen

Arundo donax Giant reed

• invasive non-native
Perennial grass

2013 Miriam Sachs Martin

2020 Jennifer Mo

2018 Ron Vanderhoff

Arundo donax var. donax Giant reed

• invasive non-native
Perennial grass

2013 Miriam Sachs Martin

2020 Jennifer Mo

2018 Ron Vanderhoff

Asarum caudatum Creeping wild ginger, Longtail wild ginger

native
Perennial herb

2023 Dana York

2022 Jamie Spielmann

2016 Richard Chasey

Asarum hartwegii Hartweg's wild ginger, Hartweg's wildginger, Wild ginger

native
Perennial herb

2022 Jamie Spielmann

2021 Melissa Harbert

2023 Katie O'Hara-Kelly

Asarum lemmonii Lemmon's wild ginger, Lemmon's wildginger

native
Perennial herb

2021 Mike Russler

2013 BOB CASE

2021 David popp

Asarum marmoratum Marbled wild ginger, Marbled wildginger

• rare native
Perennial herb (rhizomatous)

2003 Norman Jensen

2013 Ron Clark

Asclepias albicans White stemmed milkweed, Whitestem milkweed

native
Shrub

2010 Steve Matson

Asclepias asperula Spider milkweed

native
Perennial herb

2014 Ron Wolf

2010 Judy McBride

2014 Wynn Anderson

Asclepias asperula ssp. capricornu Spider milkweed

native
Perennial herb

2014 Ron Wolf

2010 Judy McBride

2014 Wynn Anderson

Asclepias asperula ssp. asperula Antelope horns, Spider milkweed

• rare native
Perennial herb

2013 James M. Andre

Asclepias californica California milkweed

native
Perennial herb

2022 Lynn Sweet

2020 Stacie Wolny

2015 Ron Vanderhoff

Asclepias cordifolia Heart leaf milkweed, Heartleaf milkweed, Purple milkweed

native
Perennial herb

2020 Zane Walker

2022 R.A. Chasey

2023 Mary Ann Machi

Asclepias cryptoceras Dwarf milkweed, Humboldt mountains milkweed, Pallid milkweed

native
Perennial herb

2019 Steve Matson

Asclepias cryptoceras ssp. davisii Dwarf milkweed, Humboldt mountains milkweed, Pallid milkweed

native
Perennial herb

2019 Steve Matson

Asclepias curassavica Blood flower, Bloodflower, tropical milkweed

non-native
Perennial herb

2018 Ron Vanderhoff

2020 Ron Vanderhoff

2021 Ron Vanderhoff

Asclepias eriocarpa Indian milkweed, Kotolo milkweed, Woolypod milkweed

native
Perennial herb

2017 Diane Etchison

2019 Cliff Halverson

2014 Dan Cohn

Asclepias erosa Desert milkweed

native
Perennial herb

2020 Alexander S. Kunz

2023 Douglas Gordon-Blackwood

2022 Catherine Capone

Asclepias fascicularis Narrow leaf milkweed

native
Perennial herb

2018 Ron Vanderhoff

2014 Steve Matson

2019 Ron Vanderhoff

Asclepias fruticosa African milkweed

non-native
Perennial herb

2010 Dr. Mark S. Brunell

Asclepias latifolia Broadleaf milkweed

native
Shrub

2019 Richard Spellenberg

Asclepias linaria Needle leaf milkweed, Pineneedle milkweed

non-native
Perennial herb, Shrub

2008 Neal Kramer

2017 John Doyen

2008 Neal Kramer

Asclepias nummularia Tufted milkweed

non-native
Shrub

Asclepias nyctaginifolia Mojave milkweed

• rare native
Perennial herb

2012 Duncan S. Bell

2010 James M. Andre

2010 Amber Swanson

Asclepias purpurascens Purple milkweed

non-native
Shrub

Asclepias solanoana Serpentine milkweed, Solanoa

• rare native
Perennial herb

2019 Steve Matson

Asclepias speciosa Showy milkweed

native
Perennial herb

2009 Steve Matson

Asclepias subulata Ajamete, Rush milkweed, Skeleton milkweed

native
Perennial herb

2017 Thomas Egan

2017 Wendy Walker

Asclepias tuberosa Butterfly milkweed

non-native
Shrub

2009 Barry Breckling

2003 Jeff Abbas

2003 Lisa Powers

Asclepias tuberosa ssp. tuberosa Butterfly milkweed

non-native
Shrub

2009 Barry Breckling

2003 Jeff Abbas

2003 Lisa Powers

Asclepias tuberosa ssp. interior Butterfly milkweed

non-native
Shrub

2005 Robert Sivinski

2016 Keir Morse

Asclepias verticillata Whorled milkweed

non-native
Shrub

Asclepias vestita Milkweed, Woolly milkweed

native
Perennial herb

2023 Sue Luft

2023 Joanna Clines

Ascophyllum nodosum Yellow tang

non-native
seaweed

FUCACEAE

2011 Phil Pullen

Asparagus aethiopicus

non-native
Perennial herb

2022 Ron Vanderhoff

2021 Ron Vanderhoff

Asparagus densiflorus

non-native
Perennial herb

2022 Ron Vanderhoff

2021 Ron Vanderhoff

Asparagus asparagoides African asparagus fern

• invasive non-native
Vine

2023 Cynthia Powell

2018 Ron Vanderhoff

2022 Joan Miller

Asparagus officinalis Garden asparagus

non-native
Perennial herb

2020 Randy Huey

2017 Vanessa Yava

2014 Richard Chasey

Asparagus officinalis ssp. officinalis Garden asparagus

non-native
Perennial herb

2021 Robin Carter

1995 Saint Mary's College of California

2020 MCOSD EDRR

Asparagus setaceus Common asparagus fern

non-native
Perennial herb

2019 Keir Morse

2010 Moorea Biocode

2020 Daniel D Miller

Asperugo procumbens German madwort

non-native
Annual herb

2008 Trent M. Draper

Asphodelus fistulosus Asphodel, Onionweed

• invasive non-native
Perennial herb

ASPHODELACEAE

2017 Steve Matson

2019 Ron Vanderhoff

Aspidotis californica California lace fern, California lacefern

native
Fern

2020 R.A. Chasey

2018 Hunter Breck

2020 John Schmidt

Aspidotis carlotta-halliae Carlotta hall's lace fern

• rare native
Fern (rhizomatous)

2010 Neal Kramer

2020 R.A. Chasey

Aspidotis densa Cliffbrake, Lace fern

native
Fern

2022 Christopher Collier

2019 Matt Berger

2015 James Gonsman

Asplenium septentrionale Northern spleenwort

• rare native
Fern (rhizomatous)

2021 Dana York

Asplenium trichomanes spleenwort

native
Fern (rhizomatous)

2011 Zoya Akulova

2013 Eric White

2011 Zoya Akulova

Asplenium trichomanes ssp. densum spleenwort

native
Fern (rhizomatous)

2011 Zoya Akulova

2013 Eric White

2011 Zoya Akulova

Asplenium trichomanes ssp. inexpectans spleenwort

native
Fern (rhizomatous)

2011 Zoya Akulova

2013 Eric White

2011 Zoya Akulova

Asplenium trichomanes ssp. trichomanes spleenwort

• rare native
Fern (rhizomatous)

2012 Dana York

Asplenium vespertinum Western spleenwort

• rare native
Fern

2015 Ron Vanderhoff

2014 Ron Vanderhoff

2023 Ron Vanderhoff

Asplenium trichomanes-ramosum Green spleenwort

• rare native
Fern (rhizomatous)

2019 John Game

2007 Dr. Amadej Trnkoczy

Asplenium viride Green spleenwort

• rare native
Fern (rhizomatous)

2019 John Game

2007 Dr. Amadej Trnkoczy

Aster novae-angliae New england aster

non-native
Perennial herb

2004 Jeff Abbas

2008 Zoya Akulova

Astragalus accidens var. hendersonii Henderson's milk vetch, Henderson's milkvetch

native
Perennial herb

2012 Gerald Carr

Astragalus acutirostris Beaked rattle weed, Keel beak, Sharpkeel milkvetch

native
Annual herb

2011 Steve Matson

Astragalus agnicidus Humboldt milk vetch, Humboldt milkvetch, Humboldt County Milkvetch

• rare native
Perennial herb

2022 Dylan Neubauer

2023 Dylan Neubauer

Astragalus agrestis Purple loco weed

• rare native
Perennial herb

2012 Jean Pawek

2013 Ron Wolf

Astragalus albens Cushenbury milk vetch, Cushenbury milkvetch

• rare native
Perennial herb

2006 Steve Matson

Astragalus allochrous var. playanus Halfmoon milkvetch, Playa milk vetch

• rare native
Perennial herb

2006 James M. Andre

2012 Steve Matson

2006 James M. Andre

Astragalus andersonii Anderson's milkvetch, Anderson's rattle weed

native
Perennial herb

2012 Steve Matson

2017 John Doyen

Astragalus anxius Troubled milk vetch, Troubled milkvetch

• rare native
Perennial herb

2012 Steve Matson

2009 F. Gauna

Astragalus argophyllus var. martinii Silverleaf milkvetch

native
Perennial herb

2019 Steve Matson

2013 Steve Matson

2011 Steve Matson

Astragalus argophyllus var. argophyllus Silver leaf milk vetch, Silverleaf milkvetch

• rare native
Perennial herb

2013 Steve Matson

Astragalus aridus Annual desert milk vetch, Annual desert milkvetch

native
Annual herb

2011 Keir Morse

Astragalus asymmetricus San joaquin milk vetch, San joaquin milkvetch

native
Perennial herb

2020 Susan McDougall

2023 Catherine Chang

Astragalus atratus Mourning milkvetch

native
Perennial herb

2001 Dana York

Astragalus atratus var. atratus Mourning milkvetch

native
Perennial herb

2001 Dana York

Astragalus atratus var. mensanus Darwin mesa milk vetch, Darwin mesa milkvetch

• rare native
Perennial herb

2001 Dana York

Astragalus austiniae Austin's milk vetch, Austin's milkvetch

• rare native
Perennial herb

2019 Matt Berger

2017 Steve Matson

2019 Matt Berger

Astragalus bernardinus San bernardino milk vetch, San bernardino milkvetch

• rare native
Perennial herb

2019 Sonie Sampson

Astragalus bicristatus Crested milk vetch, Twogrooved loco milkvetch

• rare native
Perennial herb

2019 Matt Berger

Astragalus bolanderi Bolander's milk vetch, Bolander's milkvetch

native
Perennial herb

2017 Steve Matson

Astragalus brauntonii Braunton's milk vetch, Braunton's milkvetch

• rare native
Perennial herb

2022 David Strauch

2018 Ron Vanderhoff

2020 Diane Etchison

Astragalus breweri Brewer's milk vetch, Brewer's milkvetch

• rare native
Annual herb

2019 R.A. Chasey

2018 David Greenberger

Astragalus californicus Klamath basin milkvetch, Klamath milk vetch

native
Perennial herb

2015 Gerald Carr

Astragalus calycosus Torrey's milkvetch

native
Perennial herb

2010 Steve Matson

Astragalus calycosus var. monophyllidius Torrey's milkvetch

native
Perennial herb

Astragalus calycosus var. monophyllidius

2010 Steve Matson

Astragalus calycosus var. calycosus Torrey's milk vetch, Torrey's milkvetch

native
Perennial herb

2019 Steve Matson

2010 Steve Matson

2022 R.A. Chasey

Astragalus canadensis Canadian milkvetch

native
Perennial herb

2008 Steve Matson

2018 Gerald Carr

Astragalus canadensis var. brevidens Short toothed milk vetch, Shorttooth canadian milkvetch

native
Perennial herb

2018 Gerald Carr

Astragalus casei Case's milk vetch, Case's milkvetch

native
Perennial herb

2014 Steve Matson

2011 Steve Matson

Astragalus cicer Cicer milkvetch

non-native
Perennial herb

2013 Steve Matson

2020 Bob Sweatt

Astragalus cimae var. cimae Cima milk vetch, Cima milkvetch

• rare native
Perennial herb

2006 Steve Matson

Astragalus cimae var. sufflatus Bladdery cima milk vetch, Cima milkvetch

• rare native
Perennial herb

2009 Steve Matson

2011 Steve Matson

Astragalus claranus Clara Hunt's milk vetch

• rare native
Annual herb

2020 Tim Miller

2011 Jake Ruygt

Astragalus clevelandii Cleveland's milk vetch, Cleveland's milkvetch

• rare native
Perennial herb

2012 Steve Matson

2019 Paul Aigner

2018 Paul Aigner

Astragalus coccineus Scarlet locoweed, Scarlet milk vetch, Scarlet milkvetch

native
Perennial herb

2011 James Gonsman

2017 Thomas Egan

2023 Alan Bade

Astragalus congdonii Congdon's milk vetch, Congdon's milkvetch

native
Perennial herb

2024 Mike Russler

2015 Bill Thiessen

Astragalus crotalariae Salton milk vetch, Salton milkvetch

• rare native
Perennial herb

2020 Juergen Schrenk

2019 Sonie Sampson

2024 Maisie Borg

Astragalus curtipes Morro milkvetch, San luis obispo milkvetch, South coast milk vetch

native
Perennial herb

2021 Joel A. Germond, Psy.D.

2020 David Greenberger

Astragalus curvicarpus Curvepod milkvetch

native
Perennial herb

2008 Steve Matson

Astragalus curvicarpus var. curvicarpus Coiled locoweed, Curved pod milk vetch, Curvepod milkvetch

native
Perennial herb

2010 Steve Matson

2008 Steve Matson

Astragalus deanei Dean's milk vetch, Deane's milkvetch

• rare native
Perennial herb

2022 Becky Escalante

2006 Vince Scheidt

Astragalus didymocarpus Dwarf white milk vetch, Two seeded milkvetch

native
Annual herb

2023 Julia Markey

2022 R.A. Chasey

2017 Keir Morse

Astragalus didymocarpus var. didymocarpus Common dwarf milkvetch, Dwarf white milkvetch, Two seeded milk vetch

native
Annual herb

Astragalus didymocarpus var. didymocarpus

2016 Steve Matson

Astragalus didymocarpus var. dispermus Dwarf white milk vetch, Dwarf white milkvetch, Notch leaved locoweed

native
Annual herb

2020 David Greenberger

2017 Keir Morse

Astragalus didymocarpus var. milesianus Dwarf white milkvetch, Miles' milk vetch

• rare native
Annual herb

2012 Steve Matson

2014 Chris Winchellll

Astragalus didymocarpus var. obispoensis San luis obispo milk vetch, San obispo milkvetch

native
Annual herb

Astragalus didymocarpus var. obispoensis

2012 Steve Matson

Astragalus douglasii Douglas's milkvetch

native
Perennial herb

2020 Lynn Sweet

2019 Diane Etchison

2012 Keir Morse

Astragalus douglasii var. douglasii Douglas's milkvetch

native
Perennial herb

2016 Steve Matson

Astragalus douglasii var. parishii Parish's milk vetch

native
Perennial herb

2011 Keir Morse

Astragalus douglasii var. perstrictus Jacumba milk vetch, Jacumba milkvetch

• rare native
Perennial herb

2020 David Greenberger

2010 Tamara Klug

2012 Vince Scheidt

Astragalus ertterae Walker pass milk vetch, Walker pass milkvetch

• rare native
Perennial herb

2020 Dana York

2018 Ashley Olive

Astragalus filipes Narrow pod locoweed, Stipate milkvetch, Tangled milk vetch

native
Perennial herb

2021 Steve Matson

2006 Steve Matson

2021 Steve Matson

Astragalus funereus Black milk vetch, Black milkvetch

• rare native
Perennial herb

2016 Steve Matson

Astragalus gambelianus Dwarf loco weed, Gambel's dwarf milk vetch, Gambel's locoweed

native
Annual herb

2019 Ron Vanderhoff

2022 Mike Russler

Astragalus gambelianus var. elmeri Dwarf loco weed, Gambel's dwarf milk vetch, Gambel's locoweed

native
Annual herb

2019 Ron Vanderhoff

2022 Mike Russler

Astragalus geyeri var. triquetrus Geyer's milkvetch

native
Annual herb

2019 Steve Matson

Astragalus geyeri var. geyeri Geyer's milk vetch, Geyer's milkvetch

• rare native
Annual herb

2019 Steve Matson

Astragalus gibbsii Gibbs locoweed, Gibbs' milk vetch, Gibbs' milkvetch

native
Perennial herb

2011 Steve Matson

Astragalus gilmanii Gilman's milk vetch, Gilman's milkvetch

• rare native
Perennial herb

2007 Steve Matson

Astragalus hornii var. hornii Horn's milk vetch

• rare native
Annual herb

2013 Neal Kramer

Astragalus insularis var. harwoodii Harwood's milk vetch, Harwood's milkvetch

• rare native
Annual herb

2020 David Greenberger

2017 Keir Morse

2020 David Greenberger

Astragalus inversus Susanville milk vetch, Susanville milkvetch

• rare native
Perennial herb

2022 Steve Matson

2019 Matt Berger

Astragalus inyoensis Inyo milk vetch, Inyo milkvetch

• rare native
Perennial herb

2009 Steve Matson

Astragalus iodanthus var. diaphanoides Snake milkvetch

• rare native
Perennial herb

2013 Gerald Carr

Astragalus iodanthus var. iodanthus Humboldt river milk vetch, Humboldt river milkvetch

native
Perennial herb

2014 Steve Matson

2011 Steve Matson

2014 Steve Matson

Astragalus jaegerianus Lane mountain milkvetch, Lane mtn. milk vetch

• rare native
Perennial herb

2017 Thomas Egan

2013 Xeric Specialties

2017 Thomas Egan

Astragalus johannis-howellii Long valley milk vetch, Long valley milkvetch

• rare native
Perennial herb

2008 Steve Matson

Astragalus kentrophyta Kentrophyta milkvetch, Spiny milk vetch

native
Perennial herb

2015 Steve Matson

2012 Steve Matson

2015 Steve Matson

Astragalus kentrophyta var. jessiae Kentrophyta milkvetch, Spiny milk vetch

native
Perennial herb

2015 Steve Matson

2012 Steve Matson

2015 Steve Matson

Astragalus kentrophyta var. danaus Sweetwater mountains milkvetch, Sweetwater mtns. milk vetch

• rare native
Perennial herb

2018 Steve Matson

2005 Steve Matson

Astragalus kentrophyta var. elatus Spiny leaved milk vetch, Spiny leaved milkvetch

• rare native
Perennial herb

2019 Steve Matson

Astragalus kentrophyta ssp. implexus Mat milk vetch, Mat milkvetch

native
Perennial herb

2015 Steve Matson

2016 Steve Matson

Astragalus kentrophyta var. tegetarius Mat milk vetch, Mat milkvetch

native
Perennial herb

2015 Steve Matson

2016 Steve Matson

Astragalus kentrophyta var. ungulatus Spiny milkvetch

• rare native
Perennial herb

2016 Steve Matson

Astragalus layneae Layne locoweed, Layne's milk vetch, Widow's milkvetch

native
Perennial herb

2015 Steve Matson

2023 Mike Russler

Astragalus lemmonii Lemmon's milk vetch, Lemmon's milkvetch

• rare native
Perennial herb

2018 Gerald Carr

Astragalus lentiformis Lens pod milk vetch, Lens pod milkvetch

• rare native
Perennial herb

2015 Steve Matson

Astragalus lentiginosus Freckled milk vetch, Rattle pod, Specklepod loco milkvetch

native
Annual, Perennial herb

2019 Ron Vanderhoff

2005 Keir Morse

Astragalus lentiginosus ssp. fremontii Freckled milk vetch, Rattle pod, Specklepod loco milkvetch

native
Annual, Perennial herb

2019 Ron Vanderhoff

2005 Keir Morse

Astragalus lentiginosus var. kennedyi Freckled milk vetch, Rattle pod, Specklepod loco milkvetch

native
Annual, Perennial herb

2019 Ron Vanderhoff

2005 Keir Morse

Astragalus lentiginosus var. latus Freckled milk vetch, Rattle pod, Specklepod loco milkvetch

native
Annual, Perennial herb

2019 Ron Vanderhoff

2005 Keir Morse

Astragalus lentiginosus var. antonius San antonio milk vetch, San antonio milkvetch

• rare native
Perennial herb

2014 Keir Morse

Astragalus lentiginosus var. borreganus Borrego milk vetch, Borrego milkvetch

• rare native
Annual herb

2006 Steve Matson

Astragalus lentiginosus var. coachellae Coachella valley milk vetch, Coachella valley milkvetch

• rare native
Annual herb

2016 Alex Beakes

2020 Brad Hardison

2011 Keir Morse

Astragalus lentiginosus var. fremontii Fremont's milk vetch, Fremont's milkvetch

native
Annual, Perennial herb

2015 Steve Matson

2022 Steve Matson

Astragalus lentiginosus var. idriensis Freckled milkvetch, New idria milk vetch

native
Annual, Perennial herb

2023 Ryan O'Dell

Astragalus lentiginosus var. ineptus Freckled milkvetch, Fumbling milk vetch

native
Annual, Perennial herb

2009 Steve Matson

2008 Steve Matson

2016 Steve Matson

Astragalus lentiginosus var. kernensis Kern plateau milk vetch, Kern plateau milkvetch

• rare native
Perennial herb

2022 Eric Koberle

Astragalus lentiginosus var. lentiginosus Freckled milk vetch, Freckled milkvetch

native
Annual, Perennial herb

Astragalus lentiginosus var. lentiginosus

2005 Steve Matson

Astragalus lentiginosus var. micans Shining milk vetch, Shining milkvetch

• rare native
Perennial herb

2020 Matt Berger

2023 richard mcneill

Astragalus lentiginosus var. nigricalycis Black hair milk vetch, Freckled milkvetch

native
Annual, Perennial herb

Astragalus lentiginosus var. nigricalycis

2005 Steve Matson

Astragalus lentiginosus var. piscinensis Fish slough milk vetch, Fish slough milkvetch

• rare native
Perennial herb

Astragalus lentiginosus var. piscinensis

2019 Steve Matson

Astragalus lentiginosus var. salinus Sagebrush milk vetch, Salty loco milkvetch

native
Annual, Perennial herb

2008 Steve Matson

Astragalus lentiginosus var. semotus Freckled milkvetch, White mountains milk vetch

native
Annual, Perennial herb

2015 Steve Matson

Astragalus lentiginosus var. sesquimetralis Mono locoweed, Sodaville milk vetch

• rare native
Perennial herb

Astragalus lentiginosus var. sesquimetralis

Margaret Williams and CNPS

2006 James Morefield

2004 Jeffrey M. Kane

Astragalus lentiginosus var. sierrae Bear valley milkvetch, Big bear valley milk vetch

• rare native
Perennial herb

2019 Matt Berger

Astragalus lentiginosus var. variabilis Dapple pod locoweed, Freckled milk vetch, Freckled milkvetch

native
Annual, Perennial herb

2011 Steve Matson

Astragalus leucolobus Big bear valley woollypod

• rare native
Perennial herb

2006 Steve Matson

Astragalus macrodon Salinas milk vetch, Salinas milkvetch

• rare native
Perennial herb

2010 David Keil

2022 Debra Cook

Astragalus magdalenae Satiny milkvetch

native
Perennial herb

2019 Matt Berger

2008 Jordan Zylstra

Astragalus magdalenae var. niveus Satiny milkvetch

native
Perennial herb

2019 Matt Berger

2008 Jordan Zylstra

Astragalus magdalenae var. peirsonii Peirson's milk vetch, Peirsons locoweed

• rare native
Perennial herb

2019 Matt Berger

2010 Neal Kramer

Astragalus malacus Shaggy milk vetch, Shaggy milkvetch

native
Perennial herb

2014 Steve Matson

2008 Steve Matson

2014 Steve Matson

Astragalus miguelensis San miguel island milk vetch, San miguel island milkvetch, San miguel milkvetch

• rare native
Perennial herb

2006 Steve Matson

Astragalus minthorniae Minthorn's milkvetch

native
Perennial herb

2011 Steve Matson

Astragalus minthorniae var. villosus Minthorn's milk vetch, Minthorn's milkvetch

native
Perennial herb

2011 Steve Matson

Astragalus mohavensis Mohave locoweed, Mojave milk vetch, Mojave milkvetch

native
Annual, Perennial herb

2019 Steve Matson

Astragalus mohavensis var. hemigyrus Curved pod milk vetch, Mojave milkvetch

• rare native
Annual herb

2020 Matt Berger

Astragalus mohavensis var. mohavensis Mojave milk vetch, Mojave milkvetch

native
Annual, Perennial herb

2019 Steve Matson

Astragalus monoensis Mono milk vetch, Mono milkvetch

• rare native
Perennial herb

2022 R.A. Chasey

2005 Steve Matson

2022 R.A. Chasey

Astragalus nevinii San clemente island milk vetch, San clemente island milkvetch

• rare native
Perennial herb

2011 Dylan Neubauer

2011 Neal Kramer

2012 Steve Matson

Astragalus newberryi Newberry's milkvetch

native
Perennial herb

2023 Alan Bade

2020 Steve Matson

2023 Alan Bade

Astragalus newberryi var. escalantinus Newberry's milkvetch

native
Perennial herb

2023 Alan Bade

2020 Steve Matson

2023 Alan Bade

Astragalus newberryi var. castoreus Newberry's milkvetch

native
Perennial herb

2017 Xeric Specialties -Cindy Hopkins & Dave Silverman

2017 Xeric Specialties - Cindy Hopkins & Dave Silverman

Astragalus newberryi var. newberryi Newberry's milk vetch, Newberry's milkvetch

native
Perennial herb

2020 David Greenberger

2020 Steve Matson

Astragalus nutans Lax flowered locoweed, Providence Mountain milkvetch

• rare native
Annual herb

2010 James M. Andre

2017 John Doyen

2016 John Doyen

Astragalus nuttallianus Nuttall locoweed, Small flowered milk vetch, Smallflowered milkvetch

native
Annual herb

2006 Steve Matson

2017 Keir Morse

Astragalus nuttallianus var. cedrosensis Cedros milk vetch, Turkeypeas

native
Annual herb

Astragalus nuttallianus var. cedrosensis

2019 Matt Berger

Astragalus nuttallianus var. imperfectus Turkey peas, Turkeypeas

native
Annual herb

Astragalus nuttallianus var. imperfectus

2006 Steve Matson

Astragalus nuttallii Loco weed, Nuttall's milkvetch, Ocean bluff milk vetch

native
Perennial herb

2006 Steve Matson

Astragalus nuttallii var. nuttallii Nuttall's milkvetch, Ocean bluff milk vetch

• rare native
Perennial herb

2006 Steve Matson

Astragalus nuttallii var. virgatus Nuttall's milkvetch, Ocean bluff milk vetch, San francisco rattleweed

native
Perennial herb

2011 Toni Corelli

2016 Toni Corelli

2015 Mary Sue Ittner

Astragalus nyensis Nye milk-vetch

• rare native
Annual herb

2005 James M. Andre

Astragalus obscurus Arcane milkvetch, Basalt milk vetch

native
Perennial herb

2006 Steve Matson

2021 Steve Matson

Astragalus oocarpus San diego milk vetch, San diego milkvetch

• rare native
Perennial herb

2009 Andrew Borcher

2009 Vince Scheidt

Astragalus oophorus var. lavinii Lavin's milk vetch, Lavin's milkvetch

• rare native
Perennial herb

2019 Steve Matson

2010 Steve Matson

Astragalus oophorus var. oophorus Bladder milk vetch, Egg milkvetch

• rare native
Perennial herb

2011 Steve Matson

Astragalus oxyphysus Stanislaus milkvetch

native
Perennial herb

2020 David Greenberger

2016 Steve Matson

Astragalus pachypus var. jaegeri Jaeger's milk vetch, Jaeger's milkvetch

• rare native
Shrub

2012 Keir Morse

Astragalus pachypus var. pachypus Thick pod milk vetch, Thickpod milkvetch

native
Perennial herb

2013 Debra L. Cook

2012 Neal Kramer

2019 Aaron Schusteff

Astragalus palmeri Palmer locoweed, Palmer's milk vetch, Palmer's milkvetch

native
Perennial herb

2013 Keir Morse

Astragalus panamintensis Panamint milk vetch, Panamint milkvetch

native
Perennial herb

2017 Steve Matson

2005 Steve Matson

2017 Steve Matson

Astragalus pauperculus Depauperate milk vetch, Depauperate milkvetch

• rare native
Annual herb

2021 Donald Burk

2024 Jordan Collins

Astragalus platytropis Broadkeel milkvetch, Little big pod milk vetch

• rare native
Perennial herb

2019 Matt Berger

2012 Steve Matson

Astragalus pomonensis Pomona milk vetch, Pomona milkvetch

native
Perennial herb

2020 David Greenberger

2020 Ron Vanderhoff

2023 Ron Vanderhoff

Astragalus porrectus Lahontan milkvetch

non-native
Annual herb

Astragalus preussii var. laxiflorus Lancaster milk vetch, Lancaster milkvetch

• rare native
Perennial herb

2010 James M. Andre

2016 John Doyen

2010 James M. Andre

Astragalus preussii var. preussii Desert milkvetch, Preuss's milk vetch

• rare native
Perennial herb

2015 John Doyen

Astragalus pseudiodanthus Tonopah milk vetch, Tonopah milkvetch

• rare native
Perennial herb

2014 Steve Matson

Astragalus pulsiferae Ames' milkvetch, Pulsifer's milk vetch

native
Perennial herb

2021 Steve Matson

Astragalus pulsiferae var. coronensis Modoc plateau milk vetch

• rare native
Perennial herb

2021 Steve Matson

Astragalus pulsiferae var. pulsiferae Ames' milkvetch, Pulsifer's milk vetch

• rare native
Perennial herb

2008 Steve Matson

Astragalus pulsiferae var. suksdorfii Suksdorf's milk vetch, Suksdorf's milkvetch

• rare native
Perennial herb

Anthony Baniaga

2014 Sierra Pacific Industries

2009 Sierra Pacific Industries

Astragalus purshii Pursh loco milkvetch, Pursh's milk vetch, Pursh's sheeppod

native
Perennial herb

2023 John Doyen

2023 Donald Burk

2022 Julie A. Kierstead

Astragalus purshii ssp. tinctus Pursh loco milkvetch, Pursh's milk vetch, Pursh's sheeppod

native
Perennial herb

2023 John Doyen

2023 Donald Burk

2022 Julie A. Kierstead

Astragalus purshii var. lagopinus Pursh's milk vetch, Woollypod milkvetch

native
Perennial herb

2012 Gerald Carr

Astragalus purshii var. lectulus Pursh's milk vetch, Woollypod milkvetch

native
Perennial herb

2006 Steve Matson

2021 R.A. Chasey

Astragalus purshii var. purshii Pursh's milk vetch, Woollypod milkvetch

native
Perennial herb

2016 Ray Gill

2006 Steve Matson

Astragalus purshii var. tinctus Pursh's milk vetch, Woollypod milkvetch

native
Perennial herb

2019 Matt Berger

2003 Steve Matson

Astragalus pycnostachyus Loco weed, Marsh milk vetch, Marsh milkvetch

native
Perennial herb

2013 David Magney

2021 Suzanne L. Weakley

2013 David Magney

Astragalus pycnostachyus var. lanosissimus Ventura marsh milk vetch, Ventura marsh milkvetch

• rare native
Perennial herb

Astragalus pycnostachyus var. lanosissimus

2013 David Magney

Astragalus pycnostachyus var. pycnostachyus Marsh milk vetch, Marsh milkvetch

• rare native
Perennial herb

Astragalus pycnostachyus var. pycnostachyus

2008 Toni Corelli

2020 Amy Patten

2019 Patrick Furtado

Astragalus rattanii Rattan's milk vetch, Rattan's milkvetch

native
Annual herb

2017 Steve Matson

Astragalus rattanii var. jepsonianus Jepson's milk vetch, Jepson's milkvetch

• rare native
Annual herb

2017 Steve Matson

2022 Charles Russell

2017 Steve Matson

Astragalus rattanii var. rattanii Rattan's milk vetch, Rattan's milkvetch

• rare native
Perennial herb

2012 Steve Matson

Astragalus ravenii Raven's milk vetch, Raven's milkvetch

• rare native
Perennial herb

2018 Steve Matson

Astragalus sabulonum Gravel milk vetch, Gravel milkvetch

• rare native
Annual herb

2012 Steve Matson

2005 James M. Andre

Astragalus sepultipes Lone pine milk vetch, Lone pine milkvetch

native
Perennial herb

2012 Steve Matson

Astragalus serenoi Naked milkvetch

native
Perennial herb

2007 Steve Matson

2023 richard mcneill

Astragalus serenoi var. shockleyi Naked milk vetch, Naked milkvetch

• rare native
Perennial herb

2007 Steve Matson

2023 richard mcneill

2007 Steve Matson

Astragalus shevockii Shevock's milk vetch, Shevock's milkvetch

• rare native
Perennial herb

2017 Mary Merriman

2014 John Game

Astragalus subvestitus Kern county milk vetch, Kern county milkvetch

• rare native
Perennial herb

2012 Steve Matson

2020 Matt Berger

Astragalus tenellus Looseflower milkvetch

non-native
Annual herb

Astragalus tener Alkali milk vetch, Alkali milkvetch

native
Annual herb

2020 Tim Miller

2022 Ryan O'Dell

Astragalus tener var. tener Alkali milk vetch, Alkali milkvetch

• rare native
Annual herb

2023 John Doyen

2019 John Rawlings

2020 Tim Miller

Astragalus tener var. titi Coastal dunes milk vetch, Coastal dunes milkvetch

• rare native
Annual herb

2006 Bob Huettmann

2005 Bob Huettmann

2004 Bob Huettmann

Astragalus tephrodes var. tephrodes Ashen milkvetch

native
Perennial herb

2015 Richard Spellenberg

Astragalus tidestromii Tidestrom's milk vetch, Tidestrom's milkvetch

• rare native
Perennial herb

2023 Matt Berger

2008 Steve Matson

Astragalus traskiae Trask's milk vetch, Trask's milkvetch, Trasks locoweed

• rare native
Perennial herb

2012 Gary A. Monroe

2014 John Game

Astragalus tricarinatus Triple ribbed milk vetch, Triplerib milkvetch

• rare native
Perennial herb

2017 James Heintz UCR CCB

2020 Lynn Sweet

2017 James Heintz

Astragalus trichopodus Santa barbara milk vetch, Santa barbara milkvetch

native
Perennial herb

2017 Steve Matson

Astragalus trichopodus var. lonchus Santa barbara milk vetch, Santa barbara milkvetch, Southern california milkvetch

native
Perennial herb

2020 Ron Vanderhoff

2022 Ron Vanderhoff

2021 Ron Vanderhoff

Astragalus trichopodus var. phoxus Santa barbara milk vetch, Santa barbara milkvetch

native
Perennial herb

2022 R.A. Chasey

Astragalus umbraticus Bald mountain milkvetch

• rare native
Perennial herb

2013 Scot Loring

2015 Adrienne Simmons

2011 Sierra Pacific Industries

Astragalus webberi Webber's milk vetch, Webber's milkvetch

• rare native
Perennial herb

2006 Steve Matson

Astragalus whitneyi Balloonpod milkvetch, Whitney's milk vetch

native
Perennial herb

2019 Steve Matson

2019 Julie Kierstead Nelson

Astragalus whitneyi var. confusus Conelike milkvetch, Whitney's milk vetch

native
Perennial herb

2012 Gerald Carr

Astragalus whitneyi var. lenophyllus Balloonpod milkvetch, Whitney's milk vetch

• rare native
Perennial herb

Astragalus whitneyi var. siskiyouensis Siskiyou milk vetch, Siskiyou milkvetch

native
Perennial herb

2019 Charles Russell

2011 Steve Matson

2019 Julie Kierstead Nelson

Astragalus whitneyi var. whitneyi Balloonpod milkvetch, Whitney's milk vetch

native
Perennial herb

2014 Steve Matson

Astrolepis cochisensis Cochise scaly cloakfern

native
Fern

2011 Keir Morse

Asyneuma prenanthoides California harebell

native
Perennial herb

2015 Steve Matson

Campanula prenanthoides California harebell

native
Perennial herb

2015 Steve Matson

Athyrium distentifolium

native
Fern

2014 Steve Matson

Athyrium alpestre American alpine lady fern

native
Fern

2022 John Rawlings

2021 R.A. Chasey

Athyrium alpestre var. americanum American alpine lady fern

native
Fern

2022 John Rawlings

2021 R.A. Chasey

Athyrium distentifolium var. americanum American alpine lady fern

native
Fern

2022 John Rawlings

2021 R.A. Chasey

Athyrium filix-femina Common ladyfern

native
Fern

2019 Julie Kierstead Nelson

2021 R.A. Chasey

Athyrium filix-femina var. angustum Common ladyfern

native
Fern

2019 Julie Kierstead Nelson

2021 R.A. Chasey

Athyrium filix-femina var. cyclosorum Common lady fern, Subarctic lady fern, Western lady fern

native
Fern

2021 R.A. Chasey

2018 David popp

2021 John Rawlings

Athysanus pusillus Athysanus, Common sandweed, Dwarf athysanus

native
Annual herb

2008 Steve Matson

Athysanus unilateralis Ladiestongue mustard

native
Annual herb

2023 R.A. Chasey

2008 Aaron Schusteff

Atrichoseris platyphylla Gravel ghost, Gravelghost, Parachute flower

native
Annual herb

2020 Matt Berger

2020 David Greenberger

2019 Matt Berger

Atriplex amnicola Swamp saltbush

non-native
Annual herb

2020 Ron Vanderhoff

Atriplex argentea Silver saltweed, Silverscale saltbush

native
Annual herb

2022 Naomi Fraga

2022 Dianne Lake

2017 Gerald Carr

Atriplex argentea var. expansa Mojave silverscale

native
Annual herb

2022 Dianne Lake

Atriplex canescens Fourwing saltbush, Hoary saltbush, Shadscale

native
Shrub

2019 Cynthia Powell

2022 Steve Matson

2020 Richard Spjut

Atriplex canescens ssp. canescens Fourwing saltbush

native
Shrub

2017 Ron Vanderhoff

2020 Ron Vanderhoff

2019 Kevin Woolen

Atriplex canescens var. canescens Fourwing saltbush

native
Shrub

2017 Ron Vanderhoff

2020 Ron Vanderhoff

2019 Kevin Woolen

Atriplex canescens var. laciniata Caleb saltbush

native
Shrub

2016 Keir Morse

Atriplex confertifolia Shadscale, Spiny saltbush

native
Shrub

2015 Steve Matson

2016 Steve Matson

Atriplex cordulata Heartscale

native
Annual herb

1994 Robert E. Preston, Ph.D.

2003 George W. Hartwell

2011 Jean Pawek

Atriplex erecticaulis Heartscale

native
Annual herb

1994 Robert E. Preston, Ph.D.

2003 George W. Hartwell

2011 Jean Pawek

Atriplex cordulata var. erecticaulis Earlimart orach

• rare native
Annual herb

2009 Robert E. Preston, Ph.D.

Atriplex coronata var. coronata Crownscale

• rare native
Annual herb

2023 R.A. Chasey

2023 Cynthia Powell

2021 Cynthia Powell

Atriplex coronata var. notatior San jacinto valley crownscale

• rare native
Annual herb

2021 Ron Vanderhoff

Atriplex coronata var. vallicola Lost hills crownscale

• rare native
Annual herb

2022 Ryan O'Dell

2018 Mitchell Coleman

2022 Ryan O'Dell

Atriplex coulteri Coulter's saltbush

• rare native
Perennial herb

2017 Ron Vanderhoff

2021 Ron Vanderhoff

Atriplex depressa Brittlescale

• rare native
Annual herb

2011 Ramona Robison

2009 Zoya Akulova

2003 George W. Hartwell

Atriplex elegans var. elegans Wheelscale saltbush

native
Annual herb

2011 Neal Kramer

Atriplex elegans var. fasciculata Wheelscale saltbush

native
Annual herb

2017 Fred Melgert / Carla Hoegen

Atriplex fruticulosa Ball saltbush, Valley saltbush

native
Perennial herb

2023 R.A. Chasey

2017 Adam Chasey

2021 Cynthia Powell

Atriplex gardneri var. cuneata Gardner's saltbush

native
Perennial herb

2010 Trent M. Draper

2017 Trent M. Draper

Atriplex gardneri var. gardneri Gardner's saltbush

native
Perennial herb

2010 Trent M. Draper

2017 Trent M. Draper

Atriplex gardneri var. utahensis Gardner's saltbush

native
Perennial herb

2010 Trent M. Draper

2017 Trent M. Draper

Atriplex gardneri var. falcata Salt sage, Sickle saltbush

• rare native
Perennial herb

2021 Sarah Tona

2013 Trent M. Draper

Atriplex glauca Waxy saltbush

non-native
Annual herb

2017 Ron Vanderhoff

Atriplex halimus Saltbush

non-native
Annual herb

Atriplex hymenelytra Desert holly, Desertholly saltbush

native
Shrub

2021 Alexander S. Kunz

2016 Alison Sheehey

2020 David Greenberger

Atriplex lentiformis Big saltbush

native
Shrub

2018 Rachelle Gray

2017 Ron Vanderhoff

2021 Richard Spjut

Atriplex lentiformis ssp. lentiformis Big saltbush

native
Shrub

2018 Rachelle Gray

2017 Ron Vanderhoff

2021 Richard Spjut

Atriplex leucophylla Beach salt bush, Beach saltbush, Sea scale

native
Perennial herb

2006 Avis Boutell

2019 Diane Etchison

2020 Ken Hickman

Atriplex lindleyi Lindley's saltbush

non-native
Perennial herb

2021 Ron Vanderhoff

2023 Ron Vanderhoff

2021 Ron Vanderhoff

Atriplex micrantha Twoscale saltbush

non-native
Annual herb

2013 Trent M. Draper

2013 Mary Winter

Mary Winter

Atriplex minuscula Lesser saltscale

• rare native
Annual herb

2021 Cynthia Powell

Atriplex nummularia Bluegreen saltbush

non-native
Shrub

Atriplex obovata Mound saltbush

non-native
Annual herb

Atriplex pacifica Pacific saltbrush, South coast saltbush, South coast saltscale

• rare native
Annual herb

2017 Keir Morse

Atriplex parishii Parish's brittlescale, Parish's saltbush

• rare native
Annual herb

2021 Ron Vanderhoff

Atriplex parryi Parry's saltbush

native
Shrub

2011 Steve Matson

Atriplex patula Fat hen, Fathen saltweed, Spear orache

native
Annual herb

2017 Vanessa Yava

Atriplex persistens Pool orache, Pool oracle, Sacramento saltbush

• rare native
Annual herb

2003 George W. Hartwell

2000 Robert E. Preston, Ph.D.

2010 Chris Winchell

Atriplex polycarpa Allscale saltbush, Allscale, cattle spinach, Cattle saltbush

native
Shrub

2018 Angelique Herman

2022 Steve Matson

Atriplex prostrata Fat-hen

non-native
Annual herb

2015 Alice Cummings

2023 Ron Vanderhoff

2018 Ron Vanderhoff

Atriplex triangularis Fat-hen

non-native
Annual herb

2015 Alice Cummings

2023 Ron Vanderhoff

2018 Ron Vanderhoff

Atriplex rosea Redscale, Tumbling oracle, Tumbling saltweed

non-native
Annual herb

2022 R.A. Chasey

2015 jamie smith

Atriplex semibaccata Australian saltbush

• invasive non-native
Perennial herb

2015 James Bailey

2021 David Wolfson

2020 Ron Vanderhoff

Atriplex serenana Bractscale, Saltscale, Tractscale

native
Annual herb

2015 Zoya Akulova

2010 Chris Winchell

Atriplex serenana var. davidsonii Bractscale, Davidson's saltbush, Davidson's saltscale

• rare native
Annual herb

2019 Ron Vanderhoff

2017 Neil Uelman

Atriplex serenana var. serenana Bractscale, Saltscale

native
Annual herb

2019 Ron Vanderhoff

Atriplex spinifera Mojave saltbush, Spinescale saltbush

native
Shrub

2019 Jacob Smith

2020 David Greenberger

2018 Richard Spjut

Atriplex suberecta Peregrine saltbush

non-native
Annual herb

2021 Ron Vanderhoff

Atriplex subtilis Deltoid bract saltbush

• rare native
Annual herb

2010 Robert E. Preston, Ph.D.

2000 Robert E. Preston, Ph.D.

Atriplex torreyi var. torreyi Torrey's saltbush

native
Annual herb

2015 Steve Matson

Atriplex truncata Wedgescale saltweed

native
Annual herb

2019 Steve Matson

2005 Steve Matson

Atriplex watsonii Matscale, Watson's saltbush

native
Perennial herb

2020 Ron Vanderhoff

2016 Keir Morse

Aubrieta deltoidea Garden aubrieta

non-native
Perennial herb

2005 Louis-M. Landry

Aucuba japonica Japanese laurel

non-native
Shrub, Tree

Avena barbata Slender oat, Slim oat

• invasive non-native
Annual grass

2018 Julian Geoghegan

2023 David popp

2019 Ron Vanderhoff

Avena fatua Wild oat, Wildoat

• invasive non-native
Annual grass

2018 Gary McDonald

2023 Ron Vanderhoff

Avena sativa Common oats, Cultivated oats, Wild oat

non-native
Annual, Perennial grass

2016 Cynthia Powell

2021 John Rawlings

2006 Louis-M. Landry

Avena sterilis Animated oat, Sterile oats

• invasive non-native
Annual grass

2014 Keir Morse

Avicennia marina var. australasica Gray mangrove

non-native
Tree

Axonopus affinis Axonopus

non-native
Perennial grass

2001 CDFA

Ayenia compacta California ayenia, Desert ayenia

• rare native
Perennial herb, Shrub

2020 Matt Berger

2012 Keir Morse

2020 Matt Berger

Azolla caroliniana Carolina mosquitofern

non-native
Fern

AZOLLACEAE

Azolla filiculoides American water fern, mosquito fern, Mosquito fern, Pacific mosquitofern

native
Fern

AZOLLACEAE

2020 Ron Vanderhoff

2023 R.A. Chasey

2021 Zoya Akulova-Barlow

Azolla mexicana Mexican mosquito fern

• rare native
Fern

AZOLLACEAE

2020 John Dittes

2018 joaquin hale

2020 John Dittes

Baccharis brachyphylla Short leaved baccharis, Short leaved baccharis, Shortleaf baccharis

native
Shrub

2012 Keir Morse

Baccharis glutinosa Douglas' baccharis, Salt marsh baccharis

native
Perennial herb

2020 Patrick Furtado

2019 Julian Geoghegan

2020 Rebecca Schoenenberger

Baccharis malibuensis Malibu baccharis

• rare native
Shrub

2018 Katie Gallagher

Baccharis pilularis Coyote brush, Dwarf chaparral broom

native
Shrub

2022 Ryan O'Dell

2021 Ron Vanderhoff: Staminate and pistillate plants in flower.

2018 Cynthia Powell

Baccharis pilularis ssp. consanguineus Coyote brush, Dwarf chaparral broom

native
Shrub

2022 Ryan O'Dell

2021 Ron Vanderhoff: Staminate and pistillate plants in flower.

2018 Cynthia Powell

Baccharis pilularis ssp. consanguinea Coyote brush

native
Shrub

2009 Toni Corelli

2022 John Doyen

2018 Ron Vanderhoff

Baccharis pilularis ssp. pilularis Coyote brush

native
Shrub

2010 Michael Mitchell

2022 Ryan O'Dell

2019 Cynthia Powell

Baccharis plummerae Plummer's baccharis

native
Shrub

2023 Jordan Collins

Baccharis plummerae ssp. glabrata San simeon baccharis

• rare native
Shrub

2011 Chris Winchell

2004 Laura Ann Eliassen

2011 Chris Winchell

Baccharis plummerae ssp. plummerae Plummer's baccharis

• rare native
Shrub

2023 Jordan Collins

2014 Steve Matson

2018 Michelle Tollett

Baccharis salicifolia Mule fat., seep willow, Mule's fat, Mulefat

native
Shrub

2023 Julia Markey

2020 Aaron Echols

2023 Julia Markey

Baccharis salicifolia ssp. salicifolia Mule fat

native
Shrub

2022 Ron Vanderhoff

2023 Ron Vanderhoff

2024 Holly Gray

Baccharis salicina Willow baccharis

native
Shrub

2020 Ron Vanderhoff

2022 Ron Vanderhoff

Baccharis sarothroides Desertbroom baccharis

native
Shrub

2022 Ron Vanderhoff

Baccharis sergiloides Desert baccharis

native
Shrub

2016 Richard Spjut

2020 David Greenberger

2012 Keir Morse

Baccharis vanessae Encinitas baccharis

• rare native
Shrub

2012 Keir Morse

Bacopa eisenii Gila river water hyssop, Gila river waterhyssop

native
Perennial herb

2018 Charles Russell

2007 John Game

Bacopa monnieri Herb of grace

non-native
Perennial herb

2018 Ron Vanderhoff

2021 Ron Vanderhoff

Bacopa rotundifolia Disk waterhyssop, Round leaf water hyssop

non-native
Annual, Perennial herb

2021 Sara Sweet

1995 Saint Mary's College of California

Bahia neomexicana Many flowered bahia

• rare native
Annual herb

2011 Keir Morse

Bahiopsis laciniata San Diego County viguiera

native
Shrub

2018 Ron Vanderhoff

2021 Ron Vanderhoff

2018 Ron Vanderhoff

Bahiopsis parishii Parish viguiera

native
Shrub

2019 Diane Etchison

2020 Diane Etchison

Viguiera parishii Parish viguiera

native
Shrub

2019 Diane Etchison

2020 Diane Etchison

Bahiopsis reticulata Net veined viguiera

native
Shrub

2011 Steve Matson

Bahiopsis tomentosa

non-native
Shrub

Baileya multiradiata Desert marigold

native
Perennial herb

2019 Ron Vanderhoff

2018 Steven MacDonald

Baileya multiradiata var. multiradiata Desert marigold

native
Perennial herb

2019 Ron Vanderhoff

2018 Steven MacDonald

Baileya pauciradiata Colorado desert marigold, Lax flower, Laxflower

native
Annual herb

2006 Steve Matson

2020 Susan McDougall

Baileya pleniradiata Woolly desert marigold, Woolly marigold, Wooly marigold

native
Annual, Perennial herb

2019 Steve Matson

Balsamorhiza deltoidea Balsam deltoid, Deltoid balsam root, Deltoid balsamroot

native
Perennial herb

2016 Steve Matson

2018 Matt Berger

2016 Steve Matson

Balsamorhiza hirsuta Hairy balsam root

native
Perennial herb

2002 Dean Wm. Taylor

Balsamorhiza hookeri Hooker's balsam root, Hooker's balsamroot

native
Perennial herb

2020 Bob Sweatt

2022 Bob Sweatt

Balsamorhiza incana Hoary balsamroot

native
Perennial herb

2015 Richard Spellenberg

2011 RT Hawke

Balsamorhiza lanata Woolly balsamroot

• rare native
Perennial herb

2020 Joey Santore

Balsamorhiza macrolepis Big scale balsam root, California balsamroot

• rare native
Perennial herb

2022 R.A. Chasey

2023 Matt Berger

2022 R.A. Chasey

Balsamorhiza sagittata Arrow leaved balsam root, Arrow leaved balsamroot, Arrowleaf balsamroot

native
Perennial herb

2020 Mark Kircher

2018 Adam Chasey

2018 David popp

Balsamorhiza sericea Silky balsamroot

• rare native
Perennial herb

2019 Matt Berger

2019 Glenn Fine

2007 Keir Morse

Barbarea orthoceras American rocket, American wintercress, Erectpod wintercress

native
Perennial herb

2015 James Gonsman

2019 Diane Etchison

2020 Diane Etchison

Barbarea verna Early winter cress, Early wintercress, Scurvy grass

non-native
Perennial herb

2022 Mary Merriman

2019 David popp

2018 MCOSD EDRR

Barbarea vulgaris Bitter wintercress, Common wintercress, Yellow rocket

non-native
Perennial herb

2007 Dr. Amadej Trnkoczy

2011 Steven Perry

2007 Dr. Amadej Trnkoczy

Bartramia ithyphylla Bartramia moss

native
Moss

2011 calbryos group

2013 calbryos group

Bartramia pomiformis Bartramia moss

native
Moss

2012 Chris Wagner

Bartramia stricta Bartramia moss

native
Moss

2024 Diana Wahl

2012 John Game

Bassia hyssopifolia Five horn bassia, Fivehorn smotherweed

• invasive non-native
Annual herb

2019 Ron Vanderhoff

2021 Ron Vanderhoff

2022 Bob Sweatt

Batis maritima Saltwort, Turtleweed

native
Shrub

BATACEAE

2012 Ron Vanderhoff

2020 Sandy Leatherman

2003 Debra Valov

Bauhinia galpinii African plume

non-native
Tree, Shrub

2015 Zoya Akulova

Bauhinia variegata ssp. candida Mountain ebony

non-native
Tree, Shrub

Bauhinia variegata ssp. variegata Mountain ebony

non-native
Tree, Shrub

Bauhinia variegata var. Candida Mountain ebony

non-native
Tree, Shrub

Bauhinia variegata var. Variegata Mountain ebony

non-native
Tree, Shrub

Bauhinia blakeana

non-native
Tree, Shrub

Bauhinia Xblakeana

non-native
Tree, Shrub

Bebbia juncea Sweetbush

native
Shrub

2019 Ron Vanderhoff

2023 Julia Markey

Bebbia juncea var. aspera Rough sweetbush

native
Shrub

2023 Keir Morse

2016 Steve Matson

2019 Ron Vanderhoff

Beckmannia syzigachne American sloughgrass, Slough grass

native
Annual grass

2021 Emily R. Allen

2018 Japhia Huhndorf

2021 Emily R. Allen

Bellardia trixago Mediterranean lineseed

• invasive non-native
Annual herb

2016 Michael Mitchell

2015 jamie smith

Bellis perennis English daisy, English lawn daisy

• invasive non-native
Perennial herb

2019 Ron Vanderhoff

2023 Donald Burk

2020 Bob Sweatt

Benitoa occidentalis Benitoa

• rare native
Annual herb

2021 Mike Russler

2020 Mike Russler

2019 John Game

Lessingia occidentalis Benitoa

• rare native
Annual herb

2021 Mike Russler

2020 Mike Russler

2019 John Game

Bensoniella oregana Bensoniella

• rare native
Perennial herb

2010 John Game

2019 Jonathan Lee

2006 Dean Wm. Taylor

Bensoniella oregona Bensoniella

• rare native
Perennial herb

2010 John Game

2019 Jonathan Lee

2006 Dean Wm. Taylor

Berberis aquifolium Mountain grape, Mountaingrape, Oregon grape

native
Shrub

2022 Cara Wilcox

2021 Mike Russler

Mahonia piperiana Mountain grape, Mountaingrape, Oregon grape

native
Shrub

2022 Cara Wilcox

2021 Mike Russler

Berberis aquifolium var. aquifolium Oregon grape, Piper's barberry

native
Shrub

2017 Steve Matson

Berberis aquifolium var. dictyota Jepson's oregon grape, Shining netvein barberry

native
Shrub

2009 Ron Vanderhoff

2020 Donald Burk

2021 Mike Russler

Mahonia dictyota Jepson's oregon grape, Shining netvein barberry

native
Shrub

2009 Ron Vanderhoff

2020 Donald Burk

2021 Mike Russler

Berberis aquifolium var. repens Creeping oregon grape, Dwarf mahonia

native
Shrub

2021 Steve Matson

2005 Steve Matson

Berberis pumila Creeping oregon grape, Dwarf mahonia

native
Shrub

2021 Steve Matson

2005 Steve Matson

Berberis repens Creeping oregon grape, Dwarf mahonia

native
Shrub

2021 Steve Matson

2005 Steve Matson

Mahonia pumila Creeping oregon grape, Dwarf mahonia

native
Shrub

2021 Steve Matson

2005 Steve Matson

Mahonia repens Creeping oregon grape, Dwarf mahonia

native
Shrub

2021 Steve Matson

2005 Steve Matson

Berberis darwinii Darwin's berberis

• invasive non-native
Shrub

2018 Abbot Chambers

2016 Greg O'Connell

2022 David Strauch

Berberis fremontii Fremont barberry

• rare native
Shrub

2020 David Greenberger

2019 Brett Dean

2006 James M. Andre

Mahonia fremontii Fremont barberry

• rare native
Shrub

2020 David Greenberger

2019 Brett Dean

2006 James M. Andre

Berberis haematocarpa Red fruited mahonia

native
Shrub

2014 Richard Spellenberg

2016 Wynn Anderson

Mahonia haematocarpa Red fruited mahonia

native
Shrub

2014 Richard Spellenberg

2016 Wynn Anderson

Berberis harrisoniana Harrison's barberry

• rare native
Shrub

2006 Aaron Schusteff

Berberis higginsiae Fremont's mahonia

• rare native
Shrub

2006 Rich Crawford

2013 Gary A. Monroe

2010 Zoya Akulova

Berberis nervosa Cascades oregon grape, Oregongrape

native
Shrub

2011 Steve Matson

Mahonia nervosa Cascades oregon grape, Oregongrape

native
Shrub

2011 Steve Matson

Berberis nevinii Nevin's barberry

• rare native
Shrub

2021 Mary Wloch

2022 Aaron Echols

2021 Mary Wloch

Mahonia nevinii Nevin's barberry

• rare native
Shrub

2021 Mary Wloch

2022 Aaron Echols

2021 Mary Wloch

Berberis pinnata California barberry, Coast barberry, Shiny leaf mahonia

native
Shrub

2021 Ron Vanderhoff

2022 Alice Cummings

2021 Ron Vanderhoff

Mahonia pinnata California barberry, Coast barberry, Shiny leaf mahonia

native
Shrub

2021 Ron Vanderhoff

2022 Alice Cummings

2021 Ron Vanderhoff

Berberis pinnata ssp. insularis Island barberry

• rare native
Shrub

2006 Steve Matson

Berberis pinnata ssp. pinnata California barberry, Coast barberry, Shiny leaf barberry

native
Shrub

2022 Alice Cummings

2021 Ron Vanderhoff

2021 R.A. Chasey

Berberis thunbergii Japanese barberry

non-native
Shrub

Berberis vulgaris Common barberry

non-native
Shrub

2004 Dr. Amadej Trnkoczy

Bergerocactus emoryi Cunyado, Golden spined cereus

• rare native
Shrub (stem succulent)

2019 Ron Vanderhoff

2023 Olga Batalov

2023 Eric Koberle

Bergia texana Texas bergia

native
Annual herb

2021 Donald Burk

2009 Neal Kramer

2021 Donald Burk

Bernardia incana Western bernardia

native
Shrub

2020 Matt Berger

Bernardia myricifolia Western bernardia

native
Shrub

2020 Matt Berger

Berteroa incana Hoary alyssum

• invasive non-native
Annual herb

2016 Ed King

2008 Louis-M. Landry

2018 Michael Plotz

Berula erecta Cut leaved water parsnip, Cutleaf water parsnip, Cutleaf waterparsnip

native
Perennial herb

2016 Steve Matson

Bestia longipes Bestia moss

non-native
Moss

BRACHYTHECIACEAE

2021 John Game

2022 John Rawlings

2023 John Rawlings

Beta maritima Common beet

non-native
Perennial herb

2020 Ron Vanderhoff

2019 Saul Soto

2020 Ron Vanderhoff

Beta vulgaris Common beet

non-native
Perennial herb

2020 Ron Vanderhoff

2019 Saul Soto

2020 Ron Vanderhoff

Beta vulgaris ssp. cicla Common beet

non-native
Perennial herb

2020 Ron Vanderhoff

2019 Saul Soto

2020 Ron Vanderhoff

Beta vulgaris var. maritima Common beet

non-native
Perennial herb

2020 Ron Vanderhoff

2019 Saul Soto

2020 Ron Vanderhoff

Beta vulgaris ssp. maritima Sea beet

non-native
Perennial herb

2018 Joslyn Curtis

2020 Ron Vanderhoff

Betula glandulosa Resin birch; scrub birch

• rare native
Shrub

2008 Sierra Pacific Industries

2023 Amy Rachkowski

2022 Julie A. Kierstead

Betula pumila Resin birch; scrub birch

• rare native
Shrub

2008 Sierra Pacific Industries

2023 Amy Rachkowski

2022 Julie A. Kierstead

Betula fontinalis Water birch

native
Tree, Shrub

2022 Steve Matson

2013 Steve Matson

Betula occidentalis Water birch

native
Tree, Shrub

2022 Steve Matson

2013 Steve Matson

Betula papyrifera Water birch

native
Tree, Shrub

2022 Steve Matson

2013 Steve Matson

Betula papyrifera var. papyrifera Water birch

native
Tree, Shrub

2022 Steve Matson

2013 Steve Matson

Betula pendula European white birch

non-native
Shrub

2018 Brian Charles

2018 Gregory Arena

2022 Donald Burk

Betula populifolia Gray birch

non-native
Shrub

Bidens bipinnata Spanish needles

native
Perennial herb

2016 Keir Morse

Bidens cernua Nodding beggartick

native
Perennial herb

2008 Steve Matson

Bidens frondosa Devil's beggartick, Sticktight

native
Annual herb

2020 R.A. Chasey

2020 Bob Sweatt

2020 R.A. Chasey

Bidens laevis Bur marigold

native
Perennial herb

2020 Aaron Echols

2016 Barbara Boethling

2018 Ron Vanderhoff

Bidens pilosa Hairy beggarticks

non-native
Annual herb

2021 Ron Vanderhoff

2018 Ron Vanderhoff

2020 David Wolfson

Bidens tripartita Threelobe beggarticks, Tickseed

non-native
Annual herb

2013 David popp

2014 Richard Spellenberg

Billardiera heterophylla Australian bluebell

non-native
Vine

2022 Ron Vanderhoff

Bistorta bistortoides Western Bistort

native
Perennial herb

2022 Suzanne L. Weakley

2005 Steve Matson

Polygonum bistortoides Western Bistort

native
Perennial herb

2022 Suzanne L. Weakley

2005 Steve Matson

Bituminaria bituminosa Arabian pea

non-native
Perennial herb

2005 Luigi Rignanese

2007 Dr. James D. Adams

2006 Luigi Rignanese

Psoralea bituminosa Arabian pea

non-native
Perennial herb

2005 Luigi Rignanese

2007 Dr. James D. Adams

2006 Luigi Rignanese

Blennosperma bakeri Baker's blennosperma, Sonoma sunshine

• rare native
Annual herb

2022 Zoya Akulova-Barlow

2022 Sheryl Creer

Blennosperma nanum Common stickyseed, Yellow carpet

native
Annual herb

2022 James Adams

2023 R.A. Chasey

2019 David popp

Blennosperma nanum var. nanum Common blennosperma, Common stickyseed

native
Annual herb

2017 David Greenberger

2021 R.A. Chasey

Blennosperma nanum var. robustum Point reyes blennosperma

• rare native
Annual herb

2013 (Lisa) Feather (Walker) Forestwalker

2022 Marcus Tamura

2020 Teresa R Spade, AICP

Blepharidachne kingii King's eyelash grass, King's eyelashgrass

• rare native
Perennial grass

2023 Dana York

Blepharipappus scaber Blepharipappus, Rough blepharipappus, Rough eyelashweed

native
Annual herb

2019 David Greenberger

2011 Steve Matson

2008 Steve Matson

Blepharizonia laxa Glandular big tarweed

native
Annual herb

2019 Jacob Smith

2021 Mike Russler

Blepharizonia plumosa ssp. viscida Glandular big tarweed

native
Annual herb

2019 Jacob Smith

2021 Mike Russler

Blepharizonia plumosa Big tarweed

• rare native
Annual herb

2020 David Greenberger

2019 Scott Yarger

Bloomeria clevelandii San diego goldenstar

• rare native
Perennial herb

2019 Chris Hendrickson

2011 Larry Sward

2009 Anna Bennett

Bloomeria crocea Common goldenstar, Golden star

native
Perennial herb

2018 Janith Johnson

2019 Michael Mitchell

2014 Steve Matson

Bloomeria crocea var. aurea Common goldenstar

native
Perennial herb

2019 David Greenberger

2020 Kimberly Coates

2018 Gary McDonald

Bloomeria crocea var. crocea Common goldenstar

native
Perennial herb

2019 Michael Mitchell

2019 Ron Vanderhoff

2017 Aaron Echols

Bloomeria crocea var. montana Mountain goldenstar

native
Perennial herb

2016 Keir Morse

Bloomeria humilis Dwarf goldenstar

• rare native
Perennial herb (bulb)

2020 David Wolfson

2011 Aaron E. Sims

2012 Terrence Gosliner

Arabis sparsiflora var. arcuata Arching rockcress

native
Perennial herb

2018 Steve Matson

Boechera arcuata Arching rockcress

native
Perennial herb

2018 Steve Matson

Arabis breweri Brewer's rock cress

native
Perennial herb

2019 Ken Hickman

2020 Ken Hickman

2016 Steve Matson

Boechera breweri Brewer's rock cress

native
Perennial herb

2019 Ken Hickman

2020 Ken Hickman

2016 Steve Matson

Boechera breweri ssp. breweri Brewer's rockcress

native
Perennial herb

2016 Steve Matson

Boechera breweri ssp. shastaensis Shasta rockcress

native
Perennial herb

2023 Alaine Arslan

2010 Julie A. Kierstead

2021 Julie A. Kierstead

Boechera californica California rockcress

native
Perennial herb

2022 Emily Sluiman

2019 Diane Etchison

Arabis cobrensis Masonic rock cress

• rare native
Perennial herb

2008 Steve Matson

Boechera cobrensis Masonic rock cress

• rare native
Perennial herb

2008 Steve Matson

Boechera constancei Constance's rock cress

• rare native
Perennial herb

2017 John Doyen

2008 Sierra Pacific Industries

2012 Lynn Robertson

Boechera davidsonii Davidson's rockcress

native
Perennial herb

2018 Dana York

Arabis lemmonii var. depauperata Soldier rockcress

native
Perennial herb

2012 Steve Matson

Boechera depauperata Soldier rockcress

native
Perennial herb

2012 Steve Matson

Boechera dispar Pinyon rock cress

• rare native
Perennial herb

2012 Steve Matson

Arabis divaricarpa Spreadingpod rockcress

native
Perennial herb

2009 Matt Below

2016 Keir Morse

Boechera divaricarpa Spreadingpod rockcress

native
Perennial herb

2009 Matt Below

2016 Keir Morse

Arabis platysperma var. platysperma Elko rockcress

native
Perennial herb

2003 Steve Matson

Boechera elkoensis Elko rockcress

native
Perennial herb

2003 Steve Matson

Arabis hoffmannii Hoffmann's rockcress

• rare native
Perennial herb

2014 Steve Matson

Boechera hoffmannii Hoffmann's rockcress

• rare native
Perennial herb

2014 Steve Matson

Arabis platysperma var. howellii Howell's rockcress

native
Perennial herb

2018 Matt Berger

2019 Bob Sweatt

Boechera howellii Howell's rockcress

native
Perennial herb

2018 Matt Berger

2019 Bob Sweatt

Arabis inyoensis Inyo rockcress

native
Perennial herb

2017 Steve Matson

Boechera inyoensis Inyo rockcress

native
Perennial herb

2017 Steve Matson

Arabis johnstonii Johnston's rockcress

• rare native
Perennial herb

2019 Matt Berger

Boechera johnstonii Johnston's rockcress

• rare native
Perennial herb

2019 Matt Berger

Boechera koehleri Koehler's rockcress

• rare native
Perennial herb

2023 Dee Shea Himes

2023 Dana York

Arabis lemmonii var. lemmonii Lemmon's rockcress

native
Perennial herb

2018 John Doyen

2008 Aaron Schusteff

Boechera lemmonii Lemmon's rockcress

native
Perennial herb

2018 John Doyen

2008 Aaron Schusteff

Boechera lyallii Lyall's rockcress

native
Perennial herb

2023 Dana York

Boechera microphylla Small-leaved rock cress

• rare native
Perennial herb

2011 Mary Winter

Boechera parishii Parish's rock cress

• rare native
Perennial herb

2006 Steve Matson

Boechera pauciflora Hairy stem rockcress

native
Perennial herb

2016 Trent M. Draper

2023 Dana York

2018 John Doyen

Arabis lyallii var. nubigena Small-flowered rockcress

native
Perennial herb

2007 Steve Matson

Boechera paupercula Small-flowered rockcress

native
Perennial herb

2007 Steve Matson

Arabis breweri var. pecuniaria San bernardino rock cress

• rare native
Perennial herb

2011 Thomas Stoughton

Boechera peirsonii San bernardino rock cress

• rare native
Perennial herb

2011 Thomas Stoughton

Boechera pendulina Nodding rock cress

• rare native
Perennial herb

2019 Steve Matson

Boechera pendulocarpa Dropseed rockcress

native
Perennial herb

2016 Gerald Carr

Boechera perennans Perennial rockcress

native
Perennial herb

2019 Steve Matson

Boechera pinetorum Woodland rockcress

native
Perennial herb

2006 Steve Matson

Arabis platysperma Pioneer rockcress

native
Perennial herb

2023 Mike Russler

2022 Arlee Montalvo

Boechera platysperma Pioneer rockcress

native
Perennial herb

2023 Mike Russler

2022 Arlee Montalvo

Arabis puberula Silver rockcress

native
Perennial herb

2022 Mary Merriman

2015 John Doyen

Boechera puberula Silver rockcress

native
Perennial herb

2022 Mary Merriman

2015 John Doyen

Arabis pulchra Beautiful rockcress

native
Perennial herb

2012 Steve Matson

Boechera pulchra Beautiful rockcress

native
Perennial herb

2012 Steve Matson

Boechera pygmaea Tulare county rock cress

• rare native
Perennial herb

2020 Martin Purdy

2021 Martin Purdy

Arabis rectissima var. rectissima Bristly leaf rockcress

native
Perennial herb

2019 Mary Merriman

2015 Barry Breckling

2014 David popp

Arabis repanda var. repanda Yosemite rockcress

native
Perennial herb

2014 Steve Matson

Boechera repanda Yosemite rockcress

native
Perennial herb

2014 Steve Matson

Arabis holboellii var. retrofracta Reflexed rockcress

native
Perennial herb

$Arabis holboellii var. retrofracta$

2019 Steve Matson

$Arabis holboellii var. retrofracta$

2019 Steve Matson

$Arabis holboellii var. retrofracta$

2021 Steve Matson

Boechera retrofracta Reflexed rockcress

native
Perennial herb

$Boechera retrofracta$

2019 Steve Matson

$Boechera retrofracta$

2019 Steve Matson

$Boechera retrofracta$

2021 Steve Matson

Boechera rigidissima Trinity mountain rockcress

native
Perennial herb

2022 Dana York

2015 Dana York

2011 Sierra Pacific Industries

Boechera rollei Rolle's rockcress

• rare native
Perennial herb

2012 Dana York

Boechera serpenticola Serpentine rockcress

• rare native
Perennial herb

2019 Steve Matson

Boechera shockleyi Shockley's rock cress

• rare native
Perennial herb

2019 Matt Berger

2019 Steve Matson

Arabis sparsiflora Sicklepod rockcress

native
Perennial herb

2023 Mike Russler

2014 E Knight

2023 Mike Russler

Boechera sparsiflora Sicklepod rockcress

native
Perennial herb

2023 Mike Russler

2014 E Knight

2023 Mike Russler

Arabis drummondii Drummond's rockcress

native
Perennial herb

2010 Barry Breckling

2013 Debra L. Cook

Boechera stricta Drummond's rockcress

native
Perennial herb

2010 Barry Breckling

2013 Debra L. Cook

Arabis subpinnatifida Klamath rockcress

native
Perennial herb

2021 Dana York

2022 R.A. Chasey

Boechera subpinnatifida Klamath rockcress

native
Perennial herb

2021 Dana York

2022 R.A. Chasey

Boechera suffrutescens Woody rockcress

native
Perennial herb

2014 Dana York

Boechera tiehmii Tiehm's rock cress

• rare native
Perennial herb

2016 John Doyen

Boechera tularensis Tulare rockcress

• rare native
Perennial herb

2021 Mike Russler

Arabis pulchra var. gracilis Bigfoot hybrid rockcress

native
Perennial herb

2006 Gary A. Monroe

2010 Neal Kramer

Boechera xylopoda Bigfoot hybrid rockcress

native
Perennial herb

2006 Gary A. Monroe

2010 Neal Kramer

Boechera yorkii Last chance rock cress

• rare native
Perennial herb

2005 Dana York

Boehmeria cylindrica Smallspike false nettle

non-native
Perennial herb

2007 Robert E. Preston, Ph.D.

2008 Louis-M. Landry

2007 Robert E. Preston, Ph.D.

Boehmeria nivea Smallspike false nettle

non-native
Perennial herb

2007 Robert E. Preston, Ph.D.

2008 Louis-M. Landry

2007 Robert E. Preston, Ph.D.

Boerhavia coccinea Red boerhaavia, Scarlet spiderling

native
Perennial herb

2018 James Bailey

2019 Aaron Echols

Boerhavia coulteri Coulter's spiderling

native
Annual herb

2011 Keir Morse

Boerhavia coulteri var. palmeri Coulter's spiderling

native
Annual herb

2011 Keir Morse

Boerhavia spicata Creeping spiderling

non-native
Annual herb

Boerhavia triquetra Creeping sticky stem, Slender spiderling

native
Annual herb

2022 R.A. Chasey

2005 James M. Andre

2022 R.A. Chasey

Boerhavia triquetra var. intermedia Fivewing spiderling

native
Annual herb

2022 R.A. Chasey

2011 Neal Kramer

2022 R.A. Chasey

Boerhavia wrightii Largebract spiderling, Wright's boerhavia, Wright's spiderling

native
Annual herb

2022 Steve Matson

Bolandra californica California bolandra, Sierra bolandra

• rare native
Perennial herb

2019 Matt Berger

2010 Steve Matson

2019 R.A. Chasey

Bolboschoenus fluviatilis River bulrush

native
Perennial grasslike herb

2010 Louis-M. Landry

Bolboschoenus glaucus Tubered bulrush

native
Perennial grasslike herb

2021 Ron Vanderhoff

2022 Morgan Stickrod

Eleocharis erythropoda Tubered bulrush

native
Perennial grasslike herb

2021 Ron Vanderhoff

2022 Morgan Stickrod

Bolboschoenus maritimus Alkali bulrush

native
Perennial grasslike herb

2006 Steve Matson

Bolboschoenus maritimus ssp. maritimus Alkali bulrush

native
Perennial grasslike herb

2006 Steve Matson

Scirpus maritimus Alkali bulrush

native
Perennial grasslike herb

2006 Steve Matson

Bolboschoenus maritimus ssp. paludosus Saltmarsh bulrush

native
Perennial grasslike herb

2022 R.A. Chasey

2020 R.A. Chasey

2020 Alice Cummings

Bolboschoenus robustus Sturdy bullrush

native
Perennial grasslike herb

2022 R.A. Chasey

2009 Toni Corelli

Borago officinalis Borage, Common borage

non-native
Annual herb

2020 Jesse Potter

Bothriochloa barbinodis Beard grass, Cane beardgrass, Cane bluestem

native
Perennial grass

2022 Ron Vanderhoff

2018 Ron Vanderhoff

2015 Ron Vanderhoff

Bothriochloa ischaemum Yellow bluestem

non-native
Perennial grass

2021 Donald Burk

Bothriochloa laguroides Silver beardgrass

non-native
Perennial grass

2015 Ron Vanderhoff

2021 Donald Burk

2015 Ron Vanderhoff

Bothriochloa laguroides ssp. torreyana Silver beardgrass

non-native
Perennial grass

2015 Ron Vanderhoff

2018 Ron Vanderhoff

Botrychium ascendens Upswept moonwort

• rare native
Fern (rhizomatous)

2005 Steve Matson

Botrychium crenulatum Scalloped moonwort

• rare native
Fern (rhizomatous)

2016 Steve Matson

Botrychium lunaria Common moonwort, Moonwort grapefern

• rare native
Fern (rhizomatous)

2014 Dr. Amadej Trnkoczy

2011 Ryan Batten

2007 Dr. Amadej Trnkoczy

Botrychium minganense Mingan moonwort

• rare native
Fern (rhizomatous)

2020 Belinda Lo

2011 Aaron E. Sims

2014 Sierra Pacific Industries

Botrychium montanum Western goblin

• rare native
Fern (rhizomatous)

2019 Belinda Lo

2012 Belinda Lo

Botrychium paradoxum Paradox moonwort

• rare native
Fern

2011 Ryan Batten

Botrychium pedunculosum Stalked moonwort

• rare native
Perennial herb

2011 Aaron E. Sims

Botrychium pinnatum Northwestern moonwort

• rare native
Fern (rhizomatous)

2007 John Game

2020 Belinda Lo

2007 Shawn DeCew

Botrychium pumicola Crater lake grapefern

• rare native
Fern

2006 Keir Morse

Botrychium simplex Little grape fern, Little grapefern, Yosemite moonwort

native
Fern

2005 Steve Matson

2018 Belinda Lo

Botrychium simplex var. compositum Little grapefern

native
Fern

2022 richard mcneill

2011 Aaron Sims

Botrychium simplex var. simplex Least moonwort

native
Fern

2014 Jim Morefield

Botrychium virginianum Rattlesnake fern

• rare native
Fern

2021 Cheryl Ballantyne

2022 Amy Rachkowski

2008 Louis-M. Landry

Botrypus virginianus Rattlesnake fern

• rare native
Fern

2021 Cheryl Ballantyne

2022 Amy Rachkowski

2008 Louis-M. Landry

Bougainvillea spectabilis Great bougainvillea

non-native
Shrub

2018 Michael O'Brien

2021 Ron Vanderhoff

2017 Maggie Christman

Bouteloua aristidoides Needle grama

native
Annual grass

2012 Keir Morse

Bouteloua aristidoides var. aristidoides Needle grama

native
Annual grass

Bouteloua aristidoides var. aristidoides

2012 Keir Morse

Bouteloua barbata Sixweeks grama

native
Annual grass

2023 Keir Morse

2013 Steve Matson

Bouteloua barbata var. barbata Six weeks grama

native
Annual grass

2023 Keir Morse

2013 Steve Matson

Bouteloua curtipendula Side oats grama, Sideoats grama

native
Perennial grass

2012 Aaron Schusteff

2007 Trent M. Draper

2006 Louis-M. Landry

Bouteloua curtipendula var. curtipendula Side oats grama, Sideoats grama

native
Perennial grass

Bouteloua curtipendula var. curtipendula

2012 Aaron Schusteff

2007 Trent M. Draper

2006 Louis-M. Landry

Bouteloua eriopoda Black grama

• rare native
Perennial grass

2012 Duncan S. Bell

2015 Belinda Lo

Bouteloua gracilis Blue grama

native
Perennial grass

2022 R.A. Chasey

2016 Laura Cunningham

Chondrosum gracile Blue grama

native
Perennial grass

2022 R.A. Chasey

2016 Laura Cunningham

Bouteloua trifida Red grama

• rare native
Perennial grass

2019 Matt Berger

Bowlesia incana Hoary bowlesia

native
Annual herb

2019 Diane Renshaw

2017 Gary McDonald

Boykinia major Large boykinia, Mountain boykinia, Stream boykinia

native
Perennial herb

2021 Mike Russler

2018 Julie Kierstead Nelson

2021 Mike Russler

Boykinia occidentalis Brook foam, Coastal brookfoam, Western boykinia

native
Perennial herb

2014 James Gonsman

2017 Hunter Breck

2021 Bryant Baker

Boykinia rotundifolia Round leaved boykinia

native
Perennial herb

2019 Ron Vanderhoff

2023 Ron Vanderhoff

Brachypodium distachyon False brome, Purple false brome

• invasive non-native
Annual, Perennial grass

2019 Ron Vanderhoff

2021 John Rawlings

2019 Ron Vanderhoff

Brachypodium sylvaticum Slender false brome

• invasive non-native
Perennial grass

2018 Ecological Concerns Inc

2021 SMCP NRM Intern

2020 John Rawlings

Brachythecium collinum Brachythecium moss

non-native
Moss

BRACHYTHECIACEAE

Brachythecium frigidum Cold brachythecium moss

non-native
Moss

BRACHYTHECIACEAE

Brandegea bigelovii Brandegea, Desert star vine, Desert starvine

native
Perennial herb

2019 Matt Berger

2019 Susan McDougall

2019 Matt Berger

Brasenia schreberi Watershield

• rare native
Perennial herb (aquatic)

CABOMBACEAE

2020 Bob Sweatt

2023 Matt Berger

Brassica napus Rapeseed

non-native
Annual herb

2011 Jean Pawek

2005 Louis-M. Landry

Brassica nigra Black mustard

• invasive non-native
Annual herb

2021 Ron Vanderhoff

2019 Ron Vanderhoff

Brassica oleracea Cabbage

non-native
Annual herb

2009 Toni Corelli

2021 Zoya Akulova-Barlow

2009 Toni Corelli

Brassica oleracea var. acephala Cabbage

non-native
Annual herb

2009 Toni Corelli

2021 Zoya Akulova-Barlow

2009 Toni Corelli

Brassica oleracea var. botrytis Cabbage

non-native
Annual herb

2009 Toni Corelli

2021 Zoya Akulova-Barlow

2009 Toni Corelli

Brassica oleracea var. capitata Cabbage

non-native
Annual herb

2009 Toni Corelli

2021 Zoya Akulova-Barlow

2009 Toni Corelli

Brassica oleracea var. gemmifera Cabbage

non-native
Annual herb

2009 Toni Corelli

2021 Zoya Akulova-Barlow

2009 Toni Corelli

Brassica oleracea var. gongylodes Cabbage

non-native
Annual herb

2009 Toni Corelli

2021 Zoya Akulova-Barlow

2009 Toni Corelli

Brassica rapa Common mustard, Field mustard, Rape mustard

• invasive non-native
Annual herb

2024 David Wolfson

2021 Diane Etchison

2018 Angelique Herman

Brassica tournefortii Saharan mustard

• invasive non-native
Annual herb

2023 Julia Markey

2018 Jeffrey Black

2021 Ron Vanderhoff

Brickellia atractyloides Spear leaved brickellia, Spearleaf brickellbush

native
Shrub (stem succulent)

2011 Steve Matson

Brickellia arguta var. arguta California spear leaved brickellia

native
Shrub

2020 Steve Matson

2010 Neal Kramer

Brickellia atractyloides var. arguta California spear leaved brickellia

native
Shrub

2020 Steve Matson

2010 Neal Kramer

Brickellia atractyloides var. atractyloides Spear leaved brickellia

native
Shrub (stem succulent)

Brickellia atractyloides var. atractyloides

2019 Matt Berger

2010 Lee Dittmann

Brickellia atractyloides var. odontolepis California spear leaved brickellia

native
Shrub

Brickellia atractyloides var. odontolepis

2019 Matt Berger

2020 Matt Berger

2013 Steve Matson

Brickellia californica Brickell bush, California brickellbush, California brickellia

native
Perennial herb

2020 Diane Etchison

2018 Diane Etchison

2022 Ron Vanderhoff

Brickellia coulteri Coulter's brickellbush

non-native
Perennial herb

Brickellia desertorum Desert brickellbush, Desert brickellia

native
Shrub

2017 Fred Melgert / Carla Hoegen

2019 Matt Berger

2020 R.A. Chasey

Brickellia frutescens Shrubby brickellbush, Shrubby brickellia

native
Shrub

2019 Matt Berger

2016 Keir Morse

Brickellia grandiflora Large flowered brickelbush, Large flowered brickellia, Tasselflower brickellbush

native
Perennial herb

2011 Steve Matson

2014 Steve Matson

Brickellia greenei Greene brickellbush, Greene's brickelbush, Greene's brickellia

native
Perennial herb

2015 Steve Matson

2020 R.A. Chasey

Brickellia incana Woolly brickellbush, Woolly brickellia, Wooly brickellia

native
Shrub

2020 Don M. Davis

2020 Matt Berger

2020 Don M. Davis

Brickellia knappiana Knapp brickellbush, Knapp brickellia, Knapp's brickellia

native
Shrub

2016 Dana York

Brickellia longifolia Longleaf brickellbush, Willow leaved brickellia, Willowleaf brickellia

native
Shrub

2022 Steve Matson

Brickellia longifolia var. multiflora Longleaf brickellbush

native
Shrub

2022 Steve Matson

2018 Matt Berger

Brickellia microphylla var. microphylla Littleleaf brickellbush

native
Shrub

2013 Steve Matson

2019 Steve Matson

Brickellia nevinii Nevin's brickellbush, Nevin's brickellia

native
Shrub

2019 Ron Vanderhoff

Brickellia oblongifolia Mojave brickellbush

native
Perennial herb

2021 Steve Matson

2013 Steve Matson

2019 Matt Berger

Brickellia oblongifolia var. linifolia Narrow leaved brickellia, Narrowleaf brickellbush, Pinon brickellia

native
Perennial herb

2021 Steve Matson

2017 Steve Matson

Briza maxima Big quaking grass, Big quakinggrass, Rattlesnake grass

• invasive non-native
Annual grass

2017 Gary McDonald

2018 Bill Schmidt

2017 Gary McDonald

Briza media Perennial quakinggrass

non-native
Annual grass

2007 Louis-M. Landry

2007 Dr. Amadej Trnkoczy

Briza minor Little quaking grass, Little quakinggrass, Little rattlesnake grass

non-native
Annual grass

2023 R.A. Chasey

2019 Gary McDonald

Brodiaea appendiculata Appendage brodiaea, Hoover's brodiaea

native
Perennial herb

2022 Steve Matson

2020 Jeff Bisbee

Brodiaea coronaria Crown brodiaea, Early harvest brodiaea, Harvest brodiaea

native
Perennial herb (bulb)

2021 Dee Shea Himes

2020 Jeff Bisbee

2021 Robin Carter

Brodiaea elegans Harvest brodiaea

native
Perennial herb

2019 Joe Engelbrecht

2009 Bob Case

2009 BOB CASE

Brodiaea elegans ssp. elegans Harvest brodiaea

native
Perennial herb

2016 Steve Matson

2015 Julie A. Kierstead

Brodiaea elegans ssp. hooveri Hoover's brodiaea, Hoover's harvest brodiaea

native
Perennial herb

2014 Robert E. Preston, Ph.D.

Brodiaea filifolia Thread leaved brodiaea, Threadleaf brodiaea

• rare native
Perennial herb (bulb)

2019 Diane Etchison

2021 Ron Vanderhoff

Brodiaea insignis Kaweah brodiaea

• rare native
Perennial herb (bulb)

2019 Joe Engelbrecht

2020 Jeff Bisbee

Brodiaea jolonensis Chaparral brodiaea, Dwarf brodiaea, Jolon brodiaea

native
Perennial herb

1991 Geoff Burleigh

Geoff Burleigh

Brodiaea kinkiensis San clemente island brodiaea

• rare native
Perennial herb (bulb)

2011 Dylan Neubauer

2011 Neal Kramer

Brodiaea leptandra Narrow-flowered california brodiaea

• rare native
Perennial herb

2022 John Game

2023 Hannah Aclufi

2022 R.A. Chasey

Brodiaea matsonii Sulphur creek brodiaea

• rare native
Perennial herb

2020 Jeff Bisbee

2016 Julie A. Kierstead

2011 Robert E. Preston, Ph.D.

Brodiaea minor Dwarf brodiaea, Low brodiaea, Small Brodiaea

native
Perennial herb

2019 Matt Berger

2022 Robin Carter-Ervin

Brodiaea nana Dwarf Brodiaea, Vernal Pool Brodiaea

native
Perennial herb

2020 Julie A. Kierstead

2020 Matt Berger

2021 Robin Carter

Brodiaea orcuttii Orcutt's brodiaea

• rare native
Perennial herb (bulb)

2023 Caitlin Kreutz

2014 Keir Morse

2023 Juergen Schrenk

Brodiaea pallida Chinese camp brodiaea

• rare native
Perennial herb (bulb)

2020 Jeff Bisbee

Brodiaea rosea Indian valley brodiaea

• rare native
Perennial herb (bulb)

2015 Steve Matson

Brodiaea rosea ssp. rosea Indian Valley brodiaea

• rare native
Perennial herb (bulb

2019 Julie Kierstead Nelson

2015 Julie A. Kierstead

2021 Steve Laymon

Brodiaea rosea ssp. vallicola valley brodiaea

• rare native
Perennial herb (bulb)

2020 Jeff Bisbee

Brodiaea santarosae Santa Rosa basalt brodiaea

• rare native
Perennial herb

2018 Ron Vanderhoff

2020 Ron Vanderhoff

Brodiaea sierrae Sierra foothills brodiaea

• rare native
Perennial herb

2020 Jeff Bisbee

2019 Steve Laymon

Brodiaea stellaris Star flowered brodiaea, Starflower brodiaea

native
Perennial herb

2015 James Gonsman

2018 Hayley Ross

2015 James Gonsman

Brodiaea terrestris Dwarf brodiaea

native
Perennial herb

2023 Steve Conger

2019 Mary Gerbic

Brodiaea terrestris ssp. kernensis Kern brodiaea, Kern dwarf brodiaea

native
Perennial herb

2019 Diane Etchison

2020 Ron Vanderhoff

Brodiaea terrestris ssp. terrestris Dwarf brodiaea

native
Perennial herb

2017 James Gonsman

2022 Cynthia Powell

Bromus arenarius Australian brome, Australian chess

non-native
Annual grass

2019 Ron Vanderhoff

Bromus arizonicus Arizona brome

native
Annual grass

2017 Neil Uelman

Bromus berteroanus Chilean chess

non-native
Annual grass

2023 John Rawlings

2006 Steve Matson

Bromus briziformis Rattlesnake brome, Rattlesnake chess

non-native
Annual grass

2005 Steve Matson

Bromus carinatus var. carinatus California brome, Mountain brome

native
Perennial grass

2016 Richard Chasey

2013 Jean Pawek

2021 Amelia Ryan

Bromus caroli-henrici Weedy brome

non-native
Annual grass

2020 Ramona Robison

2019 Ramona Robison

Bromus catharticus Rescue grass, Rescuegrass

non-native
Annual, Perennial grass

2019 John Rawlings

2016 Andrew Longman

2020 Ramona Robison

Bromus catharticus var. elatus Chilean brome

non-native
Annual, Perennial grass

2006 Steve Matson

Bromus ciliatus Fringed bromegrass

native
Perennial grass

2022 John Rawlings

2010 Louis-M. Landry

Bromus diandrus Bromegrass, Ripgut brome, Ripgut grass

• invasive non-native
Annual grass

2022 Ron Vanderhoff

2021 Richard Spjut

2022 Ron Vanderhoff

Bromus grandis Tall brome

native
Perennial grass

2019 Ron Vanderhoff

2021 Arlee Montalvo

2019 Ron Vanderhoff

Bromus hordeaceus Soft brome, Soft chess

• invasive non-native
Annual grass

2023 Ron Vanderhoff

2018 Gary McDonald

Bromus inermis Smooth brome

non-native
Perennial grass

2011 Ramona Robison

2019 Manzanita Dictionary

Bromus inermis ssp. inermis Smooth brome

non-native
Perennial grass

2011 Ramona Robison

2019 Manzanita Dictionary

Bromus japonicus Downy sheathed cheat, Hairy chess, Japanese brome

• invasive non-native
Annual grass

2022 Michelle Peruzzi

2005 Steve Matson

Bromus laevipes Chinook brome, Narrow flowered brome, Woodland brome

native
Perennial grass

2020 Alice Cummings

2019 Kimberly Moses

2018 Ken Hickman

Bromus madritensis Foxtail chess, foxtail brome, Madrid brome, Spanish brome

non-native
Annual grass

2022 Steve Matson

2023 Stephen H Siemsen

2015 Chris Jaster

Bromus madritensis ssp. madritensis Foxtail chess

non-native
Annual grass

2015 Chris Jaster

Bromus orcuttianus Orcutt's brome grass

native
Annual grass

2018 Liz Block

Bromus anomalus Nodding brome

native
Perennial grass

2015 Steve Matson

2015 Belinda Lo

Bromus porteri Nodding brome

native
Perennial grass

2015 Steve Matson

2015 Belinda Lo

Bromus pseudolaevipes Coast range brome, Southern chinook brome

native
Perennial grass

2019 Ron Vanderhoff

Bromus racemosus Smooth brome

non-native
Annual grass

2011 Barry Breckling

Bromus madritensis ssp. rubens Red brome

• invasive non-native
Annual grass

2015 Chris Jaster

2015 jamie smith

2018 Gary McDonald

Bromus rubens Red brome

• invasive non-native
Annual grass

2015 Chris Jaster

2015 jamie smith

2018 Gary McDonald

Bromus secalinus Chess brome, Rye brome

non-native
Annual grass

2005 Steve Matson

Bromus carinatus California brome

native
Perennial grass

2020 Ron Vanderhoff

2022 David popp

2014 Vertin Alvarez

Bromus carinatus var. marginatus Mountain brome

native
Perennial grass

2021 Arlee Montalvo

2019 John Rawlings

2021 Arlee Montalvo

Bromus maritimus Maritime brome

native
Perennial grass

2020 Ken Hickman

2016 Richard Chasey

2017 Toni Corelli

Bromus sitchensis Sitka brome, alaska brome

native
Perennial grass

2019 Adonis Tate

2018 Susan McDougall

Bromus sterilis Poverty brome, Sterile brome

non-native
Annual grass

2021 John Rawlings

2023 John Rawlings

Bromus suksdorfii Suksdorf's bromegrass

native
Perennial grass

2022 John Rawlings

2014 Belinda Lo

Bromus tectorum Cheatgrass, downy brome, Downy brome grass, Downy chess

• invasive non-native
Annual grass

2022 Ron Vanderhoff

Bromus vulgaris Columbia brome, Common brome

native
Annual grass

2023 David popp

2023 Robert Steers

2023 David popp

Broussonetia papyrifera Paper mulberry

non-native
Tree

Bruchia bolanderi Bolander's bruchia moss

• rare native
Moss

BRUCHIANCEAE

2018 Scot Loring

2012 calbryos group

Buddleja davidii Butterfly bush, Summer lilac

• invasive non-native
Tree, Shrub

2021 Ron Vanderhoff

Buddleja utahensis Panamint butterfly bush, Summer lilac, Utah butterflybush

native
Shrub

2005 Steve Matson

Bulbostylis capillaris Thread leaf beakseed, Threadleaf beakseed

• rare native
Annual grasslike herb

2011 Ryan Batten

2024 Anna Burns

1997 Dean Wm. Taylor

Bursera microphylla Elephant tree, Littleleaf elephanttree

• rare native
Tree

BURSERACEAE

2020 Matt Berger

2020 David Greenberger

2020 Matt Berger

Buxbaumia aphylla Buxbaumia moss

native
Moss

BUXBAUMIACEAE

Buxbaumia piperi Piper's buxbaumia moss

native
Moss

BUXBAUMIACEAE

2021 John Game

Buxbaumia viridis Buxbaumia moss

• rare native
Moss

BUXBAUMIACEAE

2013 Scot Loring

Buxus sempervirens Common box

non-native

BUXACEAE

Cacaliopsis nardosmia Cut leaf cacaliopsis, Silvercrown

native
Perennial herb

2018 Hugh T. Ashley

2022 Ryan O'Dell

2016 Kaleb Goff

Caesalpinia gilliesii Bird of paradise

non-native
Tree, Shrub, Vine

2014 Steve Matson

Caesalpinia pulcherrima Pride of barbados

non-native
Shrub

2006 Joseph Dougherty/ecology.org

2001 John Harper

2016 Wynn Anderson

Caesalpinia spinosa Tara

non-native
Tree, Shrub

2010 Michael O'Brien

Cakile edentula American searocket, Sea rocket

non-native
Annual herb

2021 Friends of Five Creeks volunteers

2006 Louis-M. Landry

2010 Louis-M. Landry

Cakile maritima European searocket, Sea rocket

• invasive non-native
Annual herb

2019 Diane Etchison

2021 R.A. Chasey

2019 Diane Etchison

Calamagrostis bolanderi Bolander's reedgrass

• rare native
Perennial grass (rhizomatous)

2017 Hayley Ross

2009 Zoya Akulova

Calamagrostis breweri Short hair reedgrass

native
Perennial grass

2006 Steve Matson

Calamagrostis canadensis Bluejoint reedgrass, Canada reedgrass

native
Perennial grass

2022 Dana York

2020 David popp

2020 John Rawlings

Calamagrostis canadensis var. langsdorfii Canada reedgrass

native
Perennial grass

Calamagrostis canadensis var. langsdorfii

2019 Susan McDougall

Calamagrostis foliosa Leafy reed grass, Leafy reedgrass

• rare native
Perennial grass

2015 William Maslach

2006 Steve Matson

2011 Zoya Akulova

Calamagrostis koelerioides Fire reedgrass

native
Perennial grass

2022 Dana York

2006 Steve Matson

Calamagrostis nutkaensis Pacific reedgrass

native
Perennial grass

2018 Ken Hickman

2019 Cynthia Powell

2019 Ken Hickman

Calamagrostis ophitidis Serpentine reed grass, Serpentine reedgrass

• rare native
Perennial grass

2021 R.A. Chasey

2018 Hunter Breck

2022 R.A. Chasey

Calamagrostis purpurascens Purple reedgrass

native
Perennial grass

2012 Steve Matson

Calamagrostis rubescens Pine grass, Pinegrass

native
Perennial grass

2018 Ken Hickman

2019 John Rawlings

2023 John Rawlings

Calamagrostis stricta ssp. inexpansa Narrow spiked reedgrass, Northern reedgrass, Thurber's reed grass

native
Perennial grass (rhizomatous)

2022 John Rawlings

Calamagrostis stricta ssp. stricta Slimstem reedgrass

native
Perennial grass (rhizomatous)

2007 Steve Matson

Calamintha sylvatica ssp. ascendens Woodland calamint

non-native
Perennial herb

2017 Adam Chasey

2017 John Doyen

Calandrinia breweri Brewer's calandrinia

• rare native
Annual herb

2015 Ron Vanderhoff

2018 Ken Hickman

2014 Ron Vanderhoff

Calandrinia ciliata red maids, Calandrinia

native
Annual herb

2021 Mary Ann Machi

2019 Ron Vanderhoff

Calandrinia menziesii red maids, Calandrinia

native
Annual herb

2021 Mary Ann Machi

2019 Ron Vanderhoff

Calendula arvensis Field marigold

non-native
Annual herb

2017 MCOSD EDRR

2018 David Wolfson

2019 Stephany Dery

Calendula officinalis Pot marigold

non-native
Annual herb

2023 David Wolfson

2019 Jennifer Mo

2021 Jennifer Mo

Calia secundiflora

non-native

Gerald and Buff Corsi2007 California Academy of Sciences

California macrophylla Round leaved filaree

native
Annual herb

2016 Steve Matson

2022 Cynthia Adkisson

Calliandra eriophylla Fairyduster, False mesquite

• rare native
Shrub

2020 Diane Etchison

2016 Fred Melgert

Calliandra haematocephala Stickpea

non-native
Shrub

Calliscirpus criniger Cotton grass

native
Perennial grasslike herb

2017 Steve Matson

2019 Julie Kierstead Nelson

2017 Steve Matson

Eriophorum crinigerum Cotton grass

native
Perennial grasslike herb

2017 Steve Matson

2019 Julie Kierstead Nelson

2017 Steve Matson

Callisia repens Creeping inchplant

non-native
Annual, Perennial herb

Callistemon citrinus Crimson bottlebrush

non-native
Tree, Shrub

2017 MCOSD EDRR

2015 jamie smith

Callistemon speciosus Gray bottlebrush

non-native
Tree, Shrub

Callitriche fassettii Fassett's water starwort

native
Perennial herb

2011 Zoya Akulova

Callitriche heterophylla Varied leaved water starwort, Water starwort

native
Perennial herb

2012 Ron Vanderhoff

2008 Neal Kramer

2005 Steve Matson

Callitriche heterophylla ssp. bolanderi Bolander's water starwort

native
Annual herb

2007 Keir Morse

2023 R.A. Chasey

Callitriche heterophylla var. bolanderi Bolander's water starwort

native
Annual herb

2007 Keir Morse

2023 R.A. Chasey

Callitriche marginata California water starwort, Winged water starwort

native
Annual herb (aquatic)

2019 Ron Vanderhoff

Callitriche palustris Vernal water-starwort

native
Annual herb

2019 R.A. Chasey

2015 Steve Matson

2021 R.A. Chasey

Callitropsis nootkatensis Alaska cedar

• rare native
Tree

2008 Michael Kauffmann

2018 Cynthia Powell

2006 Christopher L. Christie

Chamaecyparis nootkatensis Alaska cedar

• rare native
Tree

2008 Michael Kauffmann

2018 Cynthia Powell

2006 Christopher L. Christie

Cupressus nootkatensis Alaska cedar

• rare native
Tree

2008 Michael Kauffmann

2018 Cynthia Powell

2006 Christopher L. Christie

Calocedrus decurrens Incense cedar, Post cedar, White cedar

native
Tree

2018 Julie Kierstead Nelson

2018 David popp

2018 Richard Spjut

Calochortus albus White fairy lantern, White globe lily

native
Perennial herb

2019 David Greenberger

2019 Cynthia Powell

2009 Bob Case

Calochortus albus ssp. rubellus White fairy lantern, White globe lily

native
Perennial herb

2019 David Greenberger

2019 Cynthia Powell

2009 Bob Case

Calochortus albus var. roseus White fairy lantern, White globe lily

native
Perennial herb

2019 David Greenberger

2019 Cynthia Powell

2009 Bob Case

Calochortus albus var. rubellus White fairy lantern, White globe lily

native
Perennial herb

2019 David Greenberger

2019 Cynthia Powell

2009 Bob Case

Calochortus amabilis Golden fairy lantern, Golden globelily, Short lily

native
Perennial herb

2024 Alaine Arslan

2014 Steve Matson

2019 Steve Laymon

Calochortus ambiguus Doubting mariposa lily

non-native
Perennial herb

Calochortus amoenus Purple fairy lantern, Purple globelily

native
Perennial herb

2022 Steve Matson

2021 Mike Russler

Calochortus argillosus Clay mariposa lily

native
Perennial herb (bulb)

2016 Daniel Neal

2022 Suzanne L. Weakley

Calochortus bruneaunis Bruneau mariposa lily, Pinyon mariposa

native
Perennial herb

2008 Steve Matson

2009 Steve Matson

Calochortus catalinae Catalina mariposa lily

• rare native
Perennial herb (bulb)

2017 Steve Matson

2023 Ron Vanderhoff

Calochortus clavatus Club haired mariposa, Clubhair mariposa lily

native
Perennial herb

2019 Bryant Baker

2019 Cynthia Griffin

2020 David Wolfson

Calochortus clavatus var. avius Pleasant valley mariposa lily

• rare native
Perennial herb (bulb)

2019 David Greenberger

2012 Belinda Lo

2002 Steve Tyron

Calochortus clavatus var. clavatus Club haired mariposa lily, Clubhair mariposa lily

• rare native
Perennial herb (bulb)

2020 David Wolfson

2020 David Krause

2023 Mike Russler

Calochortus clavatus var. gracilis Slender mariposa lily

• rare native
Perennial herb (bulb)

2018 John L. Thompson

2019 John L. Thompson

2023 Alicia Di Rado

Calochortus clavatus var. pallidus Clubhair mariposa lily, Pale yellow mariposa

native
Perennial herb

2021 Mike Russler

2021 Dee Shea Himes

2022 Dee Shea Himes

Calochortus clavatus var. recurvifolius Arroyo de la cruz mariposa lily

• rare native
Perennial herb (bulb)

2023 Morgan Stickrod

2020 David Krause

2012 CNPS SLO

Calochortus coeruleus Blue star tulip, Beavertail-Grass

native
Perennial herb

2021 Roy West

2021 John L. Thompson

2023 Timothy Boomer

Calochortus concolor Golden bowl mariposa, Goldenbowl mariposa lily

native
Perennial herb

2020 Juergen Schrenk

2023 Morgan Cantrell

2021 Arlee Montalvo

Calochortus dunnii Dunn's mariposa lily

• rare native
Perennial herb (bulb)

2019 Jonathan Mercado

2016 Jenna Hartsook

2022 Elena Oey

Calochortus elegans Elegant star tulip, Northwestern mariposa lily

native
Perennial herb

2021 Dee Shea Himes

2019 Matt Berger

2020 R.A. Chasey

Calochortus elegans var. nanus Elegant star tulip, Northwestern mariposa lily

native
Perennial herb

2021 Dee Shea Himes

2019 Matt Berger

2020 R.A. Chasey

Calochortus elegans var. selwayens Elegant star tulip, Northwestern mariposa lily

native
Perennial herb

2021 Dee Shea Himes

2019 Matt Berger

2020 R.A. Chasey

Calochortus eurycarpus White mariposa lily

non-native
Perennial herb

Calochortus excavatus Inyo County star tulip, Owens Valley mariposa lily

• rare native
Perennial herb (bulb)

2020 Steve Matson

Calochortus fimbriatus Late-flowered mariposa lily

• rare native
Perennial herb

2019 Spencer Riffle

2018 Aanjelae Rhoads

2019 Spencer Riffle

Calochortus flexuosus Winding mariposa lily

native
Perennial herb

2008 Steve Matson

Calochortus greenei Greene's mariposa lily

• rare native
Perennial herb (bulb)

2020 David Greenberger

2019 John L. Thompson

Calochortus invenustus Plain mariposa lily

native
Perennial herb

Geoff Burleigh

2012 Ron Vanderhoff

Calochortus kennedyi Desert mariposa lily

native
Perennial herb

2023 Bob Steele

2020 Aaron Echols

2023 Bob Steele

Calochortus kennedyi ssp. munzii Desert mariposa lily

native
Perennial herb

2023 Bob Steele

2020 Aaron Echols

2023 Bob Steele

Calochortus kennedyi var. kennedyi Desert mariposa lily, Red mariposa

native
Perennial herb

2023 Dee Shea Himes

2016 Ron Vanderhoff

2019 Jeff Bisbee

Calochortus kennedyi var. munzii Desert mariposa lily, Munz's mariposa

native
Perennial herb

2019 John L. Thompson

2019 Matt Berger

Calochortus leichtlinii Leichtlin's mariposa lily, Smokey mariposa

native
Perennial herb

2005 Steve Matson

2022 Rick Spanel

2005 Steve Matson

Calochortus longebarbatus var. longebarbatus Long haired star tulip

• rare native
Perennial herb (bulb)

Calochortus longebarbatus var. longebarbatus

2011 Steve Matson

2023 Amy Rachkowski

Calochortus luteus Yellow mariposa lily

native
Perennial herb

2014 Steve Matson

2016 Melissa Mooney

2023 Ryan O'Dell

Calochortus macrocarpus Sagebrush mariposa lily

native
Perennial herb

2020 David Greenberger

2011 Steve Matson

Calochortus macrocarpus var. macrocarpus Sagebrush mariposa lily

native
Perennial herb

Calochortus macrocarpus var. macrocarpus

2020 David Greenberger

2011 Steve Matson

Calochortus macrocarpus var. maculosus Sagebrush mariposa lily

native
Perennial herb

2020 David Greenberger

2011 Steve Matson

Calochortus minimus Sierra mariposa lily

native
Perennial herb

2006 Steve Matson

2016 Steve Matson

Calochortus monophyllus Yellow star tulip

native
Perennial herb

2016 Steve Matson

2023 Alaine Arslan

Calochortus nudus Naked mariposa lily

native
Perennial herb

2005 Steve Matson

2020 Joey Santore

2014 Steve Matson

Calochortus obispoensis San luis mariposa lily

• rare native
Perennial herb (bulb)

2023 Morgan Stickrod

2020 Meghan Lindt

2018 Margarita Orlova

Calochortus palmeri Palmer's mariposa lily, Strangling mariposa

native
Perennial herb

Geoff Burleigh

Calochortus palmeri var. munzii Munz's mariposa lily

• rare native
Perennial herb (bulb)

2023 Morgan Stickrod

2012 Keir Morse

2019 Matt Berger

Calochortus palmeri var. palmeri Palmer's mariposa lily

• rare native
Perennial herb (bulb)

2016 Ron Vanderhoff

2020 Marisa Persaud

2019 Matt Berger

Calochortus panamintensis Panamint mariposa lily

• rare native
Perennial herb (bulb)

2011 Steve Matson

2020 John L. Thompson

Calochortus persistens Siskiyou mariposa lily

• rare native
Perennial herb (bulb)

2020 Joey Santore

Calochortus plummerae Plummer's mariposa lily

• rare native
Perennial herb (bulb)

2020 Emily Sluiman

2019 John L. Thompson

2022 Ron Vanderhoff

Calochortus pulchellus Mount Diablo globelily, Mt. Diablo fairy lantern

• rare native
Perennial herb (bulb)

2018 Steve Matson

Calochortus raichei The cedars fairy lantern

• rare native
Perennial herb (bulb)

2010 Tony Morosco

2005 Steve Lowens

2012 Aaron Arthur

Calochortus simulans San luis obispo mariposa lily

• rare native
Perennial herb (bulb)

2019 David Greenberger

2020 John L. Thompson

Calochortus splendens Splendid mariposa lily

native
Perennial herb

2019 Gordon Jenkins

2018 Diane Etchison

2019 Ron Vanderhoff

Calochortus striatus Alkali mariposa lily

• rare native
Perennial herb (bulb)

2023 John L. Thompson

2019 Sonie Sampson

Calochortus superbus Yellow mariposa

native
Perennial herb

2017 Eric Schmidt

2005 BOB CASE

2023 Mike Russler

Calochortus syntrophus Callahan's mariposa lily

• rare native
Perennial herb

2018 Julie A. Kierstead

Calochortus tiburonensis Tiburon mariposa lily

• rare native
Perennial herb (bulb)

2018 Vernon Smith

2020 Rowena Forest

2016 Steve Matson

Calochortus tolmiei Hairy star tulip, Tolmie star tulip, Tolmie's star tulip

native
Perennial herb

2020 Steve Conger

2022 Jamie Spielmann

2020 Mary Ann Machi

Calochortus umbellatus Oakland mariposa lily, Oakland star tulip

• rare native
Perennial herb (bulb)

2018 Steve Matson

2020 Tina Curiel

2018 Steve Matson

Calochortus uniflorus Pink star tulip

• rare native
Perennial herb

2022 Steve Conger

2020 Elsa de Becker

2022 Mary Ann Machi

Calochortus venustus Butterfly mariposa lily

native
Perennial herb

2014 Steve Matson

2012 Zack Abbey

2023 Rhonda Allen

Calochortus vestae Coast range mariposa lily, Yellow mariposa

native
Perennial herb

2020 Steve Conger

2021 Mary Ann Machi

2015 James Gonsman

Calochortus weedii Weed's mariposa lily

native
Perennial herb

2019 Diane Etchison

2019 Bonnie Nickel

2020 Mary Wloch

Calochortus weedii var. intermedius Intermediate mariposa lily, Weed's mariposa lily

• rare native
Perennial herb (bulb)

2010 Jesica Peak

2023 Nathan Taxel

2022 Ron Vanderhoff

Calochortus weedii var. weedii Weed's mariposa lily

native
Perennial herb

2022 Ron Vanderhoff

2020 Ron Vanderhoff

2018 Diane Etchison

Calochortus westonii Shirley meadows star tulip

• rare native
Perennial herb (bulb)

2017 Tim Miller

2023 Bob Steele

2022 Dee Shea Himes

Calotropis procera Roostertree

non-native
Tree, Shrub, Perennial herb

ASCLEPIADACEAE

Gerald and Buff Corsi 2016 California Academy of Sciences

2016 Simon J. Tonge

Gerald and Buff Corsi2009 California Academy of Sciences

Caltha biflora White marsh marigold

native
Perennial herb

2018 Art Clark

2019 Steve Matson

2021 Mike Russler

Caltha leptosepala White marsh marigold

native
Perennial herb

2018 Art Clark

2019 Steve Matson

2021 Mike Russler

Caltha leptosepala ssp. biflora White marsh marigold

native
Perennial herb

2018 Art Clark

2019 Steve Matson

2021 Mike Russler

Caltha leptosepala ssp. howellii White marsh marigold

native
Perennial herb

2018 Art Clark

2019 Steve Matson

2021 Mike Russler

Caltha leptosepala ssp. leptosepala White marsh marigold

native
Perennial herb

2018 Art Clark

2019 Steve Matson

2021 Mike Russler

Caltha leptosepala var. biflora White marsh marigold

native
Perennial herb

2018 Art Clark

2019 Steve Matson

2021 Mike Russler

Caltha palustris Yellow marsh marigold

non-native
Perennial herb

2016 Keir Morse

2023 Todd Plummer

Caltha palustris ssp. palustris Yellow marsh marigold

non-native
Perennial herb

2016 Keir Morse

2023 Todd Plummer

Caltha palustris var. arctica Yellow marsh marigold

non-native
Perennial herb

2016 Keir Morse

2023 Todd Plummer

Calycadenia fremontii Fremont's calycadenia, Fremont's western rosinweed, Klamath calycadenia

native
Annual herb

2017 Amanda Weiss

2021 R.A. Chasey

Calycadenia hooveri Hoover's calycadenia

• rare native
Annual herb

2019 Scott Yarger

Calycadenia micrantha Small flowered calycadenia

• rare native
Annual herb

2022 Ryan O'Dell

2012 Jake Ruygt

Calycadenia mollis Soft calycadenia, Soft western rosinweed

native
Annual herb

2021 Mike Russler

Calycadenia multiglandulosa Rosin weed, Sticky calycadenia, Sticky western rosinweed

native
Annual herb

2018 Alice Cummings

2021 R.A. Chasey

2019 Alice Cummings

Calycadenia oppositifolia Butte county calycadenia

• rare native
Annual herb

2019 Belinda Lo

1995 Arthur H. Bazell, M.D.

2019 Belinda Lo

Calycadenia pauciflora Small flowered calycadenia, Smallflower western rosinweed

native
Annual herb

2021 Steve Laymon

2021 R.A. Chasey

Calycadenia spicata Spicate calycadenia, Spiked western rosinweed

native
Annual herb

2007 Christopher Bronny

2007 Christopher Bronny

Calycadenia truncata Rosin weed

native
Annual herb

2016 Steve Matson

2023 Helen Hancock

Calycadenia villosa Dwarf calycadenia

• rare native
Annual herb

2016 David Wolfson

2015 David Wolfson

2004 Laura Ann Eliassen

Calycanthus occidentalis Spicebush, Sweet shrub

native
Shrub

CALYCANTHACEAE

2015 Tim Miller

2019 Robert Nance

2018 Matt Berger

Calycoseris parryi Yellow tackstem

native
Annual herb

2010 Steve Matson

2011 Steve Matson

Calycoseris wrightii White tackstem

native
Annual herb

2020 Matt Berger

2011 Steve Matson

2020 David Greenberger

Calypso bulbosa Fairy slipper, Fairyslipper orchid

native
Perennial herb

2023 Stephanie Penn

2022 Marcus Tamura

2020 Mary Ann Machi

Calypso bulbosa var. occidentalis Fairy slipper

native
Perennial herb

2018 Ken Hickman

2021 Nora Bales

2008 Keir Morse

Calyptocarpus vialis Straggler daisy

non-native
Perennial herb

Calyptridium monandrum Common pussypaws, Pussy paws

native
Annual herb

2019 Stacie Wolny

2023 Maisie Borg

2021 Mike Russler

Calyptridium monospermum One seeded pussypaws

native
Perennial herb

2013 James Gonsman

2023 Mary Ann Machi

2017 Alison Sheehey

Cistanthe monosperma One seeded pussypaws

native
Perennial herb

2013 James Gonsman

2023 Mary Ann Machi

2017 Alison Sheehey

Calyptridium parryi var. hesseae Santa cruz mtns. pussypaws

• rare native
Annual herb

2019 David Greenberger

2017 Chris Winchell

Calyptridium parryi var. nevadense Nevada pussypaws

native
Annual herb

2019 Matt Berger

2011 Steve Matson

Calyptridium parryi var. parryi Parry's pussypaws

native
Annual herb

2019 Diane Etchison

2018 Keir Morse

Calyptridium pulchellum Mariposa pussypaws

• rare native
Annual herb

2007 Chris Winchell

2016 Wendy Fisher

2007 Chris Winchell

Calyptridium pygmaeum Pygmy pussypaws

• rare native
Annual herb

2012 Michael Charters

2014 Joy England

Calyptridium quadripetalum Four petaled pussypaws

• rare native
Annual herb

2019 Paul Aigner

2012 Jake Ruygt

Calyptridium roseum Rosy pussypaws

native
Annual herb

2015 Steve Matson

2006 Keir Morse

Calyptridium umbellatum Cistanthe, Pussy paws, Pussy toes

native
Annual, Perennial herb

2021 Steve Matson

Calyptridium umbellatum ssp. caudiciferum Cistanthe, Pussy paws, Pussy toes

native
Annual, Perennial herb

Calyptridium umbellatum ssp. caudiciferum

2021 Steve Matson

Cistanthe umbellata Cistanthe, Pussy paws, Pussy toes

native
Annual, Perennial herb

2021 Steve Matson

Cistanthe umbellata var. umbellata Cistanthe, Pussy paws, Pussy toes

native
Annual, Perennial herb

2021 Steve Matson

Calystegia atriplicifolia Nightblooming false bindweed

native
Perennial herb (rhizomatous)

2020 Lilyanne Price

2013 Demo5 Calflora

Calystegia atriplicifolia ssp. buttensis Butte county morning glory

• rare native
Perennial herb (rhizomatous)

Calystegia atriplicifolia ssp. buttensis

2020 Lilyanne Price

2008 John Dittes

2008 Sierra Pacific Industries

Calystegia collina Coast range false bindweed, Hillside morning glory

native
Perennial herb

2018 Eliezer Margolis

2022 R.A. Chasey

2020 Cynthia Powell

Calystegia collina ssp. collina Coast range false bindweed, Hillside morning glory

native
Perennial herb

2018 Eliezer Margolis

2019 Julian Geoghegan

2023 Leah Lord

Calystegia collina ssp. oxyphylla Mount saint helena morning glory, Mt. saint helena morning glory

• rare native
Perennial herb (rhizomatous)

2020 Hunter Breck

2019 R.A. Chasey

2022 David Strauch

Calystegia collina ssp. tridactylosa Coast range false bindweed, Three fingered morning glory

• rare native
Perennial herb

2011 Vernon Smith

BLM,Arcata Field Office

Calystegia collina ssp. venusta South coast range morning glory

• rare native
Perennial herb (rhizomatous)

2022 Mike Russler

2019 Jennifer Wheeler

2022 Mike Russler

Calystegia felix Lucky morning-glory

• rare native
Annual herb

2018 Ron Vanderhoff

2015 Ron Vanderhoff

2017 Ron Vanderhoff

Calystegia longipes Paiute false bindweed, Piute morning glory

native
Perennial herb

2020 Mike Russler

2022 Steve Matson

Calystegia macrostegia Island false bindweed, Island morning glory

native
Perennial herb, Vine

2020 Steven M Norris

2022 Ron Vanderhoff

2018 Ron Vanderhoff

Calystegia macrostegia var. amplissima Island false bindweed, Island morning glory

native
Perennial herb, Vine

2020 Steven M Norris

2022 Ron Vanderhoff

2018 Ron Vanderhoff

Calystegia macrostegia var. cyclostegia Island false bindweed, Island morning glory

native
Perennial herb, Vine

2020 Steven M Norris

2022 Ron Vanderhoff

2018 Ron Vanderhoff

Calystegia macrostegia ssp. amplissima Island morning glory

• rare native
Perennial herb

2011 Dylan Neubauer

2011 Vince Scheidt

2011 Neal Kramer

Calystegia macrostegia ssp. arida Island false bindweed, Southern california morning glory

native
Perennial herb, Vine

2020 Kimberly Coates

2020 Mary Wloch

2021 Emily Sluiman

Calystegia macrostegia ssp. cyclostegia Coast morning glory, Island false bindweed

native
Perennial herb, Vine

2017 Michael Mitchell

2020 James Gonsman

2017 Michael Mitchell

Calystegia macrostegia ssp. intermedia Island false bindweed, South coast morning glory

native
Perennial herb, Vine

2020 Diane Etchison

2022 R.A. Chasey

2011 Wynn Anderson

Calystegia macrostegia ssp. macrostegia Island false bindweed, Island morning glory

native
Perennial herb, Vine

2021 Cynthia Powell

Calystegia macrostegia ssp. tenuifolia Island false bindweed, San diego morning glory

native
Perennial herb, Vine

2019 Diane Etchison

Calystegia malacophylla Sierra false bindweed, Sierra morning glory, Woolly morning glory

native
Perennial herb

2022 Alaine Arslan

2019 Liz Block

2018 Matt Berger

Calystegia malacophylla ssp. malacophylla Sierra false bindweed, Sierra morning glory

native
Perennial herb

Calystegia malacophylla ssp. malacophylla

2015 Steve Matson

2016 Steve Matson

Calystegia malacophylla ssp. pedicellata Jepson's morning glory, Sierra false bindweed

native
Perennial herb

Calystegia malacophylla ssp. pedicellata

2021 R.A. Chasey

2020 David Greenberger

2021 Dick Rawson

Calystegia malacophylla var. berryi Berry's morning glory

• rare native
Perennial herb (rhizomatous)

2018 Dana York

Calystegia occidentalis Bush morning glory, Chaparral false bindweed, Western morning glory

native
Perennial herb

2019 Ron Vanderhoff

2021 Arlee Montalvo

2016 Steve Matson

Calystegia fulcrata Chaparral false bindweed, Sonora morning glory

native
Perennial herb

2022 Cynthia Powell

2014 Jean Pawek

Calystegia occidentalis ssp. fulcrata Chaparral false bindweed, Sonora morning glory

native
Perennial herb

2022 Cynthia Powell

2014 Jean Pawek

Calystegia occidentalis ssp. occidentalis Chaparral false bindweed, Modoc morning glory, Western morning glory

native
Perennial herb

Calystegia occidentalis ssp. occidentalis

2016 Steve Matson

2019 Chico Hiking Association

Calystegia peirsonii Peirson's morning glory

• rare native
Perennial herb (rhizomatous)

2019 Anna Van Kovn

Calystegia purpurata Morning glory, Pacific false bindweed, Smooth western morning glory

native
Perennial herb

2014 stephen rosenthal

2019 MCOSD Restoration Crew

2022 Suzanne L. Weakley

Calystegia purpurata ssp. purpurata Pacific false bindweed, Purple western morning glory, Smooth western morning glory

native
Perennial herb

2021 Cara Wilcox

2014 James Gonsman

2020 Robert Steers

Calystegia purpurata ssp. saxicola Bodega morning glory, Pacific false bindweed

• rare native
Perennial herb

2017 Mary Sue Ittner

2022 Zoya Akulova-Barlow

2019 Manzanita Dictionary

Calystegia sepium Western hedge bindweed

native
Perennial herb

2020 Ron Vanderhoff

2021 Jutta Burger

2015 Ron Vanderhoff

Calystegia sepium ssp. americana Western hedge bindweed

native
Perennial herb

2020 Ron Vanderhoff

2021 Jutta Burger

2015 Ron Vanderhoff

Calystegia sepium ssp. sepium Western hedge bindweed

native
Perennial herb

2020 Ron Vanderhoff

2021 Jutta Burger

2015 Ron Vanderhoff

Calystegia sepium ssp. spectabilis Western hedge bindweed

native
Perennial herb

2020 Ron Vanderhoff

2021 Jutta Burger

2015 Ron Vanderhoff

Calystegia sepium ssp. binghamiae Bingham's false bindweed, Santa barbara morning glory

• rare native
Perennial herb (rhizomatous)

Calystegia sepium ssp. limnophila Hedge false bindweed, Marsh morning glory

native
Perennial herb

2013 Ron Vanderhoff

2021 Jutta Burger

2020 R.A. Chasey

Calystegia silvatica Shortstalk false bindweed

non-native
Vine, Shrub

2018 David Greenberger

2011 Eric Wrubel/NPS

2019 Friends of Five Creeks volunteers

Calystegia silvatica ssp. disjuncta Shortstalk false bindweed

non-native
Vine, Shrub

2014 Sarah Jones

2011 Eric Wrubel

2015 Robert Sikora

Calystegia soldanella Beach morning glory, Beach morningglory

native
Perennial herb

2020 David Greenberger

2021 Hayley Ross

Calystegia stebbinsii Cutleaf morning glory, El dorado morningglory, Stebbins's morning glory

• rare native
Perennial herb (rhizomatous)

2020 Matt Berger

Calystegia subacaulis Hill morning glory, Hillside false bindweed, Stemless morning glory

native
Perennial herb

2020 Ken Hickman

2022 R.A. Chasey

Calystegia subacaulis ssp. episcopalis Cambria morning glory, San luis obispo county morning glory

• rare native
Perennial herb (rhizomatous)

2019 David Greenberger

2021 Kristen Nelson

2018 Adonis Tate

Calystegia subacaulis ssp. subacaulis Cambria morning glory, Hill morning glory, Hillside false bindweed

native
Perennial herb

2020 Ken Hickman

2021 R.A. Chasey

2022 R.A. Chasey

Calystegia vanzuukiae Van zuuk's morning-glory

• rare native
Perennial herb

2022 Camille Nowell

2014 Steven Perry

Camassia leichtlinii Large camas

native
Perennial herb

2020 Bob Sweatt

2019 David Greenberger

2022 Jerry Murray

Camassia leichtlinii ssp. leichtlinii Large camas

native
Perennial herb

2020 Bob Sweatt

2019 David Greenberger

2022 Jerry Murray

Camassia leichtlinii ssp. suksdorfii Suksdorf's large camas

native
Perennial herb

2019 Chasey

2019 David Greenberger

2023 Jim Xerogeanes

Camassia quamash Camas, Common camas

native
Perennial herb

2020 Bob Sweatt

2019 Cheryl Ballantyne

2019 Bob Case

Camassia quamash ssp. quamash Camas, Common camas

native
Perennial herb

2020 Bob Sweatt

2019 Cheryl Ballantyne

2019 Bob Case

Camassia quamash ssp. utahensis Camas, Common camas

native
Perennial herb

2020 Bob Sweatt

2019 Cheryl Ballantyne

2019 Bob Case

Camassia quamash ssp. breviflora Small camas, Smallflowered camas

native
Perennial herb

2015 John Schmidt

2005 Steve Matson

Camassia quamash var. breviflora Small camas, Smallflowered camas

native
Perennial herb

2015 John Schmidt

2005 Steve Matson

Camelina microcarpa False flax, Little podded falseflax, Littleseed falseflax

non-native
Annual herb

2016 David popp

2005 Brent Miller

2012 Jean Pawek

Camissonia benitensis San benito evening primrose

• rare native
Annual herb

2022 Ryan O'Dell

2019 David Greenberger

Camissonia campestris Field primrose, Field sun cup, Mojave suncup

native
Annual herb

2016 Steve Matson

Camissonia campestris ssp. campestris Field sun cup, Mojave suncup

native
Annual herb

2016 Steve Matson

Camissonia contorta Contorted sun cup, Plains evening primrose

native
Annual herb

2023 Dianne Lake

2022 Mike Russler

Camissonia integrifolia Kern river evening primrose

• rare native
Annual herb

2023 Mike Russler

Camissonia kernensis Kern county evening primrose, Kern sun cups

native
Annual herb

2016 Steve Matson

2023 Olesya Konovalova

Camissonia kernensis ssp. gilmani Kern county evening primrose, Kern sun cups

native
Annual herb

2016 Steve Matson

2023 Olesya Konovalova

Camissonia kernensis ssp. gilmanii Gilman's evening primrose

native
Annual herb

2023 Olesya Konovalova

Camissonia kernensis ssp. kernensis Kern county evening primrose

• rare native
Annual herb

2016 Steve Matson

Camissonia lacustris Grassland suncup, Lakebed sun cup

• rare native
Annual herb

2022 Ryan O'Dell

2021 Ryan O'Dell

2022 Ryan O'Dell

Camissonia nevadensis Nevada suncup

non-native
Annual, Perennial herb

Camissonia parvula Lewis river suncup, Tiny sun cup

native
Annual herb

2022 Steve Matson

2019 Steve Matson

Camissonia pubens Hairy sun cup, Hairy suncup

native
Annual herb

2013 Steve Matson

Camissonia pusilla Little wiry sun cup, Raven s primrose

native
Annual herb

2011 Steve Matson

2008 Steve Matson

Camissonia sierrae ssp. alticola Mono hot springs evening primrose

• rare native
Annual herb

2015 Dana York

Camissonia sierrae ssp. sierrae Sierra sun cup, Sierra suncup

• rare native
Annual herb

2022 Ryan O'Dell

2021 Mike Russler

Camissonia strigulosa Contorted primrose, Sandysoil suncup, Strigose sun cup

native
Annual herb

2015 Diane Etchison

2011 Michael Mitchell

2015 Diane Etchison

Camissonia bistorta California sun cup

native
Annual herb

2017 Diane Etchison

2019 Ken Hickman

Camissoniopsis bistorta California sun cup

native
Annual herb

2017 Diane Etchison

2019 Ken Hickman

Camissonia cheiranthifolia Beach evening-primrose

native
Perennial herb

2019 Patrick Furtado

2021 Meghan Lindt

2021 Rosaleen Murphy

Camissonia cheiranthifolia ssp. cheiranthifolia Beach evening-primrose

native
Perennial herb

Camissonia cheiranthifolia ssp. cheiranthifolia

2019 Patrick Furtado

2021 Meghan Lindt

2021 Rosaleen Murphy

Camissoniopsis cheiranthifolia Beach evening-primrose

native
Perennial herb

2019 Patrick Furtado

2021 Meghan Lindt

2021 Rosaleen Murphy

Camissoniopsis cheiranthifolia ssp. cheiranthifolia Beach evening-primrose

native
Annual, Perennial herb

Camissoniopsis cheiranthifolia ssp. cheiranthifolia

2016 Steve Matson

2006 Steve Matson

Camissoniopsis cheiranthifolia ssp. suffruticosa Shrubby beach primrose

native
Perennial herb

Camissoniopsis cheiranthifolia ssp. suffruticosa

2017 Steve Matson

Camissoniopsis confusa San bernardino sun cup

native
Annual herb

2021 Arlee Montalvo

2019 Diane Etchison

Camissoniopsis guadalupensis ssp. clementina San clemente island evening-primrose

• rare native
Annual herb

Camissoniopsis guadalupensis ssp. clementina

2011 Dylan Neubauer

Camissoniopsis hardhamiae Hardham's evening-primrose

• rare native
Annual herb

1981 California Native Plant Society

2005 Dean Wm. Taylor

2013 Chris Winchell

Camissonia hirtella Hairy sun cup

native
Annual herb

2019 Steve Matson

Camissoniopsis hirtella Hairy sun cup

native
Annual herb

2019 Steve Matson

Camissoniopsis ignota Jurupa hills sun cup

native
Annual herb

2020 Diane Etchison

2015 Diane Etchison

2019 Arlee Montalvo

Camissoniopsis intermedia Intermediate sun cups

native
Annual herb

2017 David Greenberger

2016 Erik Larsen

2018 Alice Cummings

Camissoniopsis lewisii Lewis' evening-primrose

• rare native
Annual herb

2019 Diane Etchison

2016 William Jones

Camissoniopsis luciae Santa lucia sun cup

native
Annual herb

Gladys Lucille Smith1999 California Academy of Sciences

Camissoniopsis micrantha Spencer primrose

native
Annual herb

2024 Mike Russler

2021 Cara Wilcox

2023 Ron Vanderhoff

Camissoniopsis pallida Pale yellow sun cup

native
Annual herb

2020 Don M. Davis

2023 Mike Russler

2020 Don M. Davis

Camissoniopsis pallida ssp. hallii Hall's sun cup

native
Annual herb

2016 Steve Matson

2019 Hailey Laskey

2016 Steve Matson

Camissoniopsis pallida ssp. pallida Pale sun cup

native
Annual herb

2023 Mike Russler

2021 R.A. Chasey

Camissoniopsis robusta Robust subcup

native
Annual herb

2019 Diane Etchison

2015 Keir Morse

Campanula angustiflora Eastwood's bellflower, Eastwood's harebell

native
Annual herb

2018 Hunter Breck

2017 Hunter Breck

Campanula californica Swamp harebell

• rare native
Perennial herb (rhizomatous)

2023 Charles Russell

2023 Suzanne L. Weakley

2019 R.A. Chasey

Campanula exigua Chaparral harebell

• rare native
Annual herb

2019 David Greenberger

2022 R.A. Chasey

2019 David Greenberger

Campanula griffinii Griffin's bellflower, Griffin's harebell

native
Annual herb

2022 Robert Steers

Campanula rotundifolia Alpine harebell, Bluebell, Round leaf harebell

native
Perennial herb

2022 Dana York

2021 R.A. Chasey

Campanula scabrella Rough harebell

• rare native
Perennial herb (rhizomatous)

2014 Steve Matson

2023 Glenn Fine

Campanula scouleri Scouler's harebell

native
Perennial herb

2023 Mary Ann Machi

2020 Richard Spjut

2021 Steve Conger

Campanula sharsmithiae Sharsmith's harebell

• rare native
Annual herb

2019 Adam Chasey

Campanula shetleri Castle crag's harebell, Castle crags harebell

• rare native
Perennial herb (rhizomatous)

2019 Steve Matson

Campanula wilkinsiana Wilkins' harebell

• rare native
Perennial herb (rhizomatous)

2022 Dana York

2018 Jane Cohn

2022 Dana York

Campsis radicans Trumpet creeper

non-native
Vine

2016 Keir Morse

Canbya aurea Golden pygmypoppy

non-native
Annual herb

2003 Christopher L. Christie

Canbya candida Pygmy poppy, White pygmypoppy

• rare native
Annual herb

2024 Bob Steele

2019 Matt Berger

2015 Michael Charters

Cannabis sativa Herb, Marijuana

non-native
Annual herb

2005 Louis-M. Landry

2017 Barry Rice

2005 Louis-M. Landry

Capsella bursa-pastoris Shepherd's purse

non-native
Annual herb

2008 Steve Matson

2019 Cynthia Powell

2022 Doug Allshouse

Capsicum annuum Cayenne pepper

non-native
Annual, Perennial herb

2010 Hans J. Koch

2007 Luigi Rignanese

2010 Moorea Biocode

Caragana arborescens Siberian pea tree, Siberian peashrub

non-native
Tree, Shrub

2008 Louis-M. Landry

2005 Louis-M. Landry

2008 Louis-M. Landry

Cardamine angulata Seaside bitter cress, Seaside bittercress

• rare native
Perennial herb

2021 Dana York

2015 Dana York

Cardamine bellidifolia Alpine bittercress

native
Perennial herb

2019 Steve Matson

2022 Steve Laymon

2023 Jane Cohn

Cardamine bellidifolia var. bellidifolia Alpine bittercress

native
Perennial herb

Cardamine bellidifolia var. bellidifolia

2019 Steve Matson

2022 Steve Laymon

2023 Jane Cohn

Cardamine bellidifolia var. pachyphylla Alpine bitter cress, Alpine bittercress, Fleshy toothwort

• rare native
Perennial herb

2018 Matt Berger

2014 Chris Wagner

2004 Penn Martin II

Cardamine breweri Brewer's bitter cress, Brewer's bittercress

native
Perennial herb

2005 Steve Matson

2020 Bob Sweatt

2005 Steve Matson

Cardamine californica California toothwort, milkmaids

native
Perennial herb

2020 Barbara Peck

2019 Ron Vanderhoff

Cardamine californica var. californica California toothwort, milkmaids

native
Perennial herb

2020 Barbara Peck

2019 Ron Vanderhoff

Cardamine californica var. sinuata California toothwort, milkmaids

native
Perennial herb

2020 Barbara Peck

2019 Ron Vanderhoff

Cardamine cordifolia Heartleaf bittercress

native
Perennial herb

2009 Barry Breckling

2018 David popp

2010 Barry Breckling

Cardamine flexuosa Woodland bittercress

non-native
Annual, Biennial, Perennial herb

2008 Louis-M. Landry

2009 Phil Pullen

Cardamine hirsuta Hairy bitter cress, Hairy bittercress

non-native
Annual herb

2020 Ken Lunders

2022 Donald Burk

Cardamine nuttallii Nuttall's toothwort

native
Perennial herb

2023 Dana York

2007 Keir Morse

2023 Dana York

Cardamine nuttallii var. nuttallii Nuttall's toothwort

native
Perennial herb

2023 Dana York

2007 Keir Morse

2023 Dana York

Cardamine nuttallii var. gemmata Nuttall's toothwort, Yellow tubered toothwort

• rare native
Perennial herb (rhizomatous)

2007 Keir Morse

Cardamine occidentalis Big western bittercress, Western toothwort

native
Perennial herb

2007 Fran�ois Meignant

2018 Susan McDougall

Cardamine oligosperma Bitter cress, Idaho bittercress

native
Annual, Perennial herb

2008 Steve Matson

Cardamine pachystigma Rock toothwort, Serpentine bittercress

native
Perennial herb

2021 Dana York

Cardamine pensylvanica Pennsylvania bittercress

native
Perennial herb

2015 Mary Merriman

2008 Louis-M. Landry

2007 Louis-M. Landry

Cardionema ramosissimum Sand mat, Sandcarpet

native
Perennial herb

2023 Ron Vanderhoff

2015 Michael Mitchell

2019 John Rawlings

Cardiospermum halicacabum Balloon vine

non-native
Tree, Shrub

Carduus acanthoides Plumeless thistle, Spiny plumeless thistle

• invasive non-native
Perennial herb

2016 Catherine Talbot

2015 Catherine Talbot

Carduus acanthoides ssp. acanthoides Plumeless thistle

non-native
Perennial herb

2019 Catherine Talbot

2016 Catherine Talbot

Carduus nutans Musk thistle, Nodding plumeless thistle

• invasive non-native
Perennial herb

2022 Bob Sweatt

Carduus pycnocephalus Italian thistle

• invasive non-native
Annual herb

2019 Gary McDonald

2023 Diana Wahl

2017 Gary McDonald

Carduus pycnocephalus ssp. pycnocephalus Italian thistle

non-native
Annual herb

Carduus pycnocephalus ssp. pycnocephalus

2020 Ron Vanderhoff

2019 Gary McDonald

2021 Ron Vanderhoff

Carduus tenuiflorus Italian thistle, Slender flowered thistle, Winged plumeless thistle

• invasive non-native
Annual herb

2018 Gary McDonald

Carex abrupta Abrupt beaked sedge

native
Perennial grasslike herb

2010 Steve Matson

Carex alma Sedge, Sturdy sedge

native
Perennial grasslike herb

2018 Ron Vanderhoff

2011 Dylan Neubauer

Carex amplifolia Ample leaved sedge, Big leaf sedge

native
Perennial grasslike herb

2002 Steve Matson

2019 Matt Berger

Carex angustata Narrow leaved sedge, Wide fruit sedge

native
Perennial grasslike herb

2018 Julie Kierstead Nelson

2003 Steve Matson

2003 Steve Matson

Carex aquatilis Water sedge

native
Perennial grasslike herb

2006 Keir Morse

Carex aquatilis var. aquatilis Water sedge

native
Perennial grasslike herb

2006 Keir Morse

2020 Cynthia Powell

Carex aquatilis var. dives Sitka sedge

native
Perennial grasslike herb

2003 Steve Matson

Carex arcta Bear sedge

• rare native
Perennial grasslike herb

2006 Dean Wm. Taylor

Carex atherodes Slough sedge

• rare native
Perennial grasslike herb

2015 Dean Taylor

2009 Dean Wm. Taylor, Ph.D.

Carex athrostachya Slender beak sedge, Slender leaved sedge

native
Perennial grasslike herb

2018 Emily Allen

2004 Steve Matson

Carex aurea Golden fruited sedge, Golden sedge

native
Perennial grasslike herb

2020 David Greenberger

2018 Matt Berger

1981 Dean Wm. Taylor

Carex barbarae Santa barbara sedge, Valley sedge

native
Perennial grasslike herb

2017 Eric Wrubel, NPS

2023 Ron Vanderhoff

Carex bella Southwestern showy sedge

native
Perennial grasslike herb

2003 Steve Matson

Carex bolanderi Bolander's sedge

native
Perennial grasslike herb

2018 Steve Matson

Carex brainerdii Brainerd's sedge

native
Perennial grasslike herb

2022 Dana York

2003 Steve Matson

1998 Dean Wm. Taylor

Carex brevicaulis Short stem sedge

native
Perennial grasslike herb

2022 Michael L. Uhler

2022 R.A. Chasey

Carex breweri Brewer's sedge

native
Perennial grasslike herb

2019 Matt Berger

2018 Matt Berger

2019 Matt Berger

Carex buxbaumii Buxbaum's sedge

• rare native
Perennial grasslike herb

2010 Steve Matson

2017 Steve Matson

Carex californica California sedge

• rare native
Perennial grasslike herb (rhizomatous)

2020 Hayley Ross

2022 R.A. Chasey

Carex canescens Hoary sedge, Silvery sedge

native
Perennial grasslike herb

2018 Robert L. Carr

2014 Susan McDougall

Carex canescens ssp. canescens Silvery sedge

native
Perennial grasslike herb

2018 Robert L. Carr

Carex capitata Capitate sedge

native
Perennial grasslike herb

2019 Matt Berger

2021 Steve Matson

Carex cephalophora Oval leaf sedge

non-native
Perennial grasslike herb

2010 Louis-M. Landry

2003 Steve Matson

Carex comosa Bristly sedge, Longhair sedge

• rare native
Perennial grasslike herb (rhizomatous)

2003 Steve Matson

1997 Dean Wm. Taylor

2009 Kerry Heise

Carex concinnoides Northwestern sedge

native
Perennial grasslike herb

2023 Dana York

2015 Hayley Ross

Carex congdonii Congdon's sedge

• rare native
Perennial grasslike herb (rhizomatous)

2022 John Rawlings

2018 Thomas Reyes

2022 John Rawlings

Carex cusickii Cusick's sedge

native
Perennial grasslike herb

2018 Cynthia Powell

2016 Steve Matson

2003 Steve Matson

Carex cyrtostachya Arching sedge

• rare native
Perennial grasslike herb

2016 Dean Wm. Taylor

Carex davyi Davy's sedge

• rare native
Perennial grasslike herb

2020 Matt Berger

Carex deflexa ssp. boottii Mountain mat sedge

native
Perennial grasslike herb

2013 Dylan Neubauer

2010 Steve Matson

Carex deflexa var. boottii Mountain mat sedge

native
Perennial grasslike herb

2013 Dylan Neubauer

2010 Steve Matson

Carex densa Dense sedge, Sedge

native
Perennial grasslike herb

2023 John Rawlings

2022 R.A. Chasey

2014 Eric Wrubel

Carex diandra Lesser panicled sedge

native
Perennial grasslike herb

2019 Matt Berger

2009 Steve Matson

Carex disperma Soft leaf sedge, Softleaf sedge

native
Perennial grasslike herb

2014 Steve Matson

Carex divulsa Grassland sedge

non-native
Perennial grasslike herb

2020 Peter Warner

2021 John Rawlings

2020 Peter Warner

Carex divulsa ssp. divulsa Gray sedge

non-native
Perennial grasslike herb

2020 Peter Warner

2017 Eric Wrubel

Carex douglasii Douglas sedge, Douglas' sedge

native
Perennial grasslike herb

2023 Donald Burk

2009 Steve Matson

Carex duriuscula Needleleaf sedge

• rare native
Perennial grasslike herb (rhizomatous)

2015 Steve Matson

2003 Steve Matson

Carex echinata Bristle fruit sedge, Star sedge

native
Perennial grasslike herb

2019 Matt Berger

2012 Steve Matson

2019 Matt Berger

Carex echinata ssp. echinata Bristle fruit sedge, Star sedge, Stellate sedge

native
Perennial grasslike herb

2012 Steve Matson

2006 Steve Matson

2019 Matt Berger

Carex echinata ssp. phyllomanica Star sedge

native
Perennial grasslike herb

2017 Steve Matson

Carex exsiccata Western inflated sedge

native
Perennial grasslike herb

2015 Dana York

2003 Steve Matson

Carex feta Feta sedge, Green sheathed sedge, Greensheath sedge

native
Perennial grasslike herb

2019 David Greenberger

2020 Dick Rawson

2019 Wyatt Dooley

Carex filifolia Thread leaf sedge, Threadleaf sedge

native
Perennial grasslike herb

2003 Steve Matson

2022 Jordan Collins

Carex filifolia var. erostrata Shorthair sedge, Thread leaf sedge

native
Perennial grasslike herb

2003 Steve Matson

2022 Jordan Collins

Carex fissuricola Cleft sedge

native
Perennial grasslike herb

2008 Steve Matson

2019 Mary Merriman

2008 Steve Matson

Carex flacca Heath sedge

non-native
Perennial grasslike herb

Carex fracta Fragile sheath sedge, Fragile sheathed sedge

native
Perennial grasslike herb

$Carex fracta$

2022 Dana York

$Carex fracta$

2022 Dana York

$Carex fracta$

2022 Dana York

Carex garberi Elk sedge, Garber's sedge

native
Perennial grasslike herb

2003 Steve Matson

Carex geyeri Elk sedge, Elkgrass, Geyer's sedge

• rare native
Perennial grasslike herb (rhizomatous)

2015 Steve Matson

Carex globosa Round fruit sedge

native
Perennial grasslike herb

2014 Steve Matson

Carex gracilior Slender sedge

native
Perennial grasslike herb

2010 Toni Corelli

2003 Steve Matson

Carex gynodynama Olney's hairy sedge

native
Perennial grasslike herb

2012 Alan Castner

2014 Scot Loring

2022 John Rawlings

Carex halliana Hall's sedge

• rare native
Perennial grasslike herb (rhizomatous)

2022 Dana York

2019 Matt C. Berger

2008 Sean B. Smith

Carex harfordii Harford's sedge, Monterey sedge

native
Perennial grasslike herb

2019 Ken Hickman

2023 Ellen Uhler

Carex hassei Hasse's sedge, Salt sedge

native
Perennial grasslike herb

2014 Neal Kramer

2002 Dean Wm. Taylor

2014 Neal Kramer

Carex haydeniana Cloud sedge

native
Perennial grasslike herb

2003 Steve Matson

Carex helleri Heller's sedge

native
Perennial grasslike herb

2019 David Greenberger

2022 John Rawlings

2002 Steve Matson

Carex hendersonii Henderson's sedge

native
Perennial grasslike herb

2022 Sherry Adams

2003 Steve Matson

2007 Shawn DeCew

Carex heteroneura Different nerve sedge, Variable nerved sedge

native
Perennial grasslike herb

2003 Steve Matson

2010 Steve Matson

2006 Steve Matson

Carex heteroneura var. heteroneura Different nerve sedge, Variable nerved sedge

native
Perennial grasslike herb

2003 Steve Matson

2010 Steve Matson

2006 Steve Matson

Carex hirtissima Fuzzy sedge

native
Perennial grasslike herb

1997 Dean Wm. Taylor

2003 Steve Matson

Carex hoodii Hood's sedge

native
Perennial grasslike herb

2010 Steve Matson

Carex hystericina Bottlebrush sedge

• rare native
Perennial grasslike herb (rhizomatous)

2003 Steve Matson

Carex hallii Idaho sedge

• rare native
Perennial grasslike herb (rhizomatous)

2012 Dylan Neubauer

2004 Steve Matson

Carex idahoa Idaho sedge

• rare native
Perennial grasslike herb (rhizomatous)

2012 Dylan Neubauer

2004 Steve Matson

Carex illota Sheep sedge, Small headed sedge

native
Perennial grasslike herb

2021 Steve Matson

2009 Steve Matson

2021 Steve Matson

Carex incurviformis Coastal sand sedge

• rare native
Perennial grasslike herb (rhizomatous)

2016 Steve Matson

Carex inops Long stolon sedge

native
Perennial grasslike herb

2019 Matt Berger

Carex inops ssp. inops Long stolon sedge

native
Perennial grasslike herb

2019 Matt Berger

Carex integra Smooth beak sedge

native
Perennial grasslike herb

2009 Steve Matson

2019 Steve Matson

Carex interior Inland sedge

native
Perennial grasslike herb

2003 Steve Matson

Carex jonesii Jones' sedge

native
Perennial grasslike herb

2022 Dana York

2014 Steve Matson

Carex laeviculmis Smooth stem sedge, Smoothstem sedge

native
Perennial grasslike herb

2003 Steve Matson

Carex lasiocarpa Slender sedge, Woolly fruited sedge

• rare native
Perennial grasslike herb (rhizomatous)

2014 Robert L. Carr

Carex lemmonii Lemmon's sedge

native
Perennial grasslike herb

2023 David popp

2010 Aaron Arthur

2003 Steve Matson

Carex lenticularis Lakeshore sedge

native
Perennial grasslike herb

2019 David Greenberger

2011 Dana York

2006 Louis-M. Landry

Carex lenticularis var. impressa Few ribbed sedge, Lakeshore sedge

native
Perennial grasslike herb

2002 Steve Matson

Carex lenticularis var. limnophila Lakeshore sedge

• rare native
Perennial grasslike herb

2003 Steve Matson

Carex lenticularis var. lipocarpa Fat fruited sedge, Kellogg's sedge

native
Perennial grasslike herb

2011 Dana York

2007 Steve Matson

Carex leporina Hare or oval sedge

native
Perennial grasslike herb

null

2009 Chris Wagner

Carex leporinella Sierra hare sedge

native
Perennial grasslike herb

2016 Steve Matson

Carex leptalea Bristlestalked sedge, Flaccid sedge

• rare native
Perennial grasslike herb (rhizomatous)

2003 Steve Matson

Carex leptopoda Slender-footed sedge

native
Perennial grasslike herb

2019 Mary Merriman

2023 R.A. Chasey

2021 Judy Schwartz

Carex limosa Mud sedge, Shore sedge

• rare native
Perennial grasslike herb (rhizomatous)

2009 Steve Matson

2020 Bob Sweatt

2019 Matt Berger

Carex livida Livid sedge

• rare native
Perennial grasslike herb (rhizomatous)

University and Jepson Herbaria

Carex luzulifolia Littleleaf sedge

native
Perennial grasslike herb

2019 David Greenberger

2003 Steve Matson

2007 Steve Matson

Carex luzulina Wood rush sedge, Woodrush sedge

native
Perennial grasslike herb

2019 David Greenberger

2008 Sean B. Smith

2010 Keir Morse

Carex luzulina var. ablata Wood rush sedge, Woodrush sedge

native
Perennial grasslike herb

2019 David Greenberger

2008 Sean B. Smith

2010 Keir Morse

Carex lyngbyei Lyngbye's sedge

• rare native
Perennial grasslike herb

2017 Steve Matson

2013 Brianna Ceglia

2017 Steve Matson

Carex mariposana Mariposa sedge

native
Perennial grasslike herb

2007 Steve Matson

2003 Steve Matson

2007 Steve Matson

Carex mendocinensis Mendocino sedge

native
Perennial grasslike herb

2021 R.A. Chasey

Carex mertensii Mertens' sedge

native
Perennial grasslike herb

2019 Matt Berger

2003 Steve Matson

2019 Matt C. Berger

Carex microptera Small wing sedge

native
Perennial grasslike herb

2018 David Greenberger

2015 Steve Matson

Carex multicaulis Forest sedge, Many stemmed sedge

native
Perennial grasslike herb

2008 Steve Matson

2022 Julie A. Kierstead

Carex multicostata Many ribbed sedge, Manyrib sedge

native
Perennial grasslike herb

2002 Steve Matson

2003 Steve Matson

2002 Steve Matson

Carex nardina Spike sedge

• rare native
Perennial grasslike herb

2011 Dana York

2018 Susan McDougall

Carex nebrascensis Nebraska sedge

native
Perennial grasslike herb

2019 Steve Matson

2022 Dianne Lake

2019 Steve Matson

Carex nervina Sierra nerved sedge, Sierra sedge

native
Perennial grasslike herb

2005 Steve Matson

2019 Matt Berger

Carex neurophora Alpine nerve sedge

native
Perennial grasslike herb

2003 Steve Matson

Carex nigricans Black alpine sedge

native
Perennial grasslike herb

2009 Steve Matson

2010 Steve Matson

Carex nudata Dudley's sedge, Naked sedge, Torrent sedge

native
Perennial grasslike herb

2022 R.A. Chasey

2016 David Greenberger

2014 John Malpas

Carex obispoensis San Luis Obispo sedge, San Luis sedge

• rare native
Perennial grasslike herb (rhizomatous)

2006 Steve Matson

2010 Chris Winchell

2006 Steve Matson

Carex obnupta Coast carex, Slough sedge

native
Perennial grasslike herb

2017 Steve Matson

Carex occidentalis Western sedge

• rare native
Perennial grasslike herb

2016 Steve Matson

Carex orestera Boulder sedge

native
Perennial grasslike herb

2015 Steve Matson

2010 Steve Matson

Carex pachystachya Chamisso sedge, Thick headed sedge

native
Perennial grasslike herb

2003 Steve Matson

2008 Steve Matson

2003 Steve Matson

Carex pansa Sand dune sedge, Sanddune sedge

native
Perennial grasslike herb

2003 Steve Matson

Carex parryana Parry's sedge

native
Perennial grasslike herb (rhizomatous)

2004 Steve Matson

2003 Steve Matson

Carex pellita Woolly sedge

native
Perennial grasslike herb

2019 Matt Berger

2022 Ellen Uhler

2019 Eric Wrubel

Carex pendula Hanging sedge

• invasive non-native
Perennial grasslike herb

2015 Andrea Williams

2022 Mitchell Blake

2011 Michael Perlmutter

Carex petasata Liddon sedge, Liddon's sedge

• rare native
Perennial grasslike herb

2009 Sierra Pacific Industries

2007 Dean Wm. Taylor, Ph.D.

Carex phaeocephala Brown head sedge, Dunhead sedge, Mountain hare sedge

native
Perennial grasslike herb

2013 Dana York

Carex praeceptorum Early sedge, Teacher's sedge

native
Perennial grasslike herb

2015 Steve Matson

Carex praegracilis Clustered field sedge, Field sedge

native
Perennial grasslike herb

2020 Ken Hickman

2020 John Rawlings

2020 Steve Matson

Carex praticola Meadow sedge

• rare native
Perennial grasslike herb

2013 Scot Loring

Carex preslii Presl's sedge

native
Perennial grasslike herb

2007 Keir Morse

Carex proposita Great smoky mountain sedge, Propose sedge

native
Perennial grasslike herb

2003 Steve Matson

Carex raynoldsii Raynold's sedge, Raynolds' sedge

native
Perennial grasslike herb

2003 Steve Matson

Carex rossii Ross sedge, Ross' sedge

native
Perennial grasslike herb

2002 Steve Matson

2006 Steve Matson

Carex saliniformis Salt sedge

• rare native
Perennial grasslike herb

2003 Steve Matson

2011 Halleh Paymard

Carex sartwelliana Yosemite sedge

native
Perennial grasslike herb

1982 Dean Wm. Taylor

2003 Steve Matson

Carex scabriuscula Siskiyou sedge

• rare native
Perennial grasslike herb (rhizomatous)

2014 Steve Matson

Carex schottii Schott's sedge

native
Perennial grasslike herb

2019 Ken Hickman

2019 John Rawlings

2019 Ken Hickman

Carex scirpoidea ssp. pseudoscirpoidea Single spiked sedge

• rare native
Perennial grasslike herb (rhizomatous)

2009 Steve Matson

2003 Steve Matson

2016 Steve Matson

Carex scirpoidea var. pseudoscirpoidea Single spiked sedge

• rare native
Perennial grasslike herb (rhizomatous)

2009 Steve Matson

2003 Steve Matson

2016 Steve Matson

Carex scoparia Pointed broom sedge

native
Perennial grasslike herb

2003 Steve Matson

Carex scopulorum Mountain sedge

native
Perennial grasslike herb

2022 John Rawlings

2014 Julie Kierstead Nelson

Carex scopulorum var. bracteosa Bracted sedge, Crater sedge, Mountain sedge

native
Perennial grasslike herb

2022 John Rawlings

2005 Aaron Schusteff

2007 Steve Matson

Carex senta Rough sedge, Swamp carex, Swamp sedge

native
Perennial grasslike herb

2019 Rachelle Gray

Carex serpenticola Serpentine sedge

• rare native
Perennial grasslike herb

2016 Dana York

Carex serratodens Bifid sedge, Two tooth sedge

native
Perennial grasslike herb

2019 Steve Matson

2021 Cynthia Powell

Carex sheldonii Sheldon's sedge

• rare native
Perennial grasslike herb (rhizomatous)

2015 Steve Matson

Carex simulata Analogue sedge, Short beaked sedge

native
Perennial grasslike herb

2006 Steve Matson

2017 Eric Wrubel, NPS

2006 Steve Matson

Carex specifica Narrow fruit sedge

native
Perennial grasslike herb

2003 Steve Matson

Carex spectabilis Showy sedge

native
Perennial grasslike herb

2010 Steve Matson

Carex spissa San diego sedge

native
Perennial grasslike herb

2016 Steve Matson

Carex norvegica Steven's sedge

• rare native
Perennial grasslike herb (rhizomatous)

2003 Steve Matson

Carex stipata Awlfruit sedge

native
Perennial grasslike herb

2002 Dean Wm. Taylor

2008 Keir Morse

Carex stipata var. stipata Awl fruited sedge, Owlfruit sedge

native
Perennial grasslike herb

2008 Keir Morse

2002 Dean Wm. Taylor

2014 Trent M. Draper

Carex straminiformis Shasta sedge, Straw like sedge

native
Perennial grasslike herb

2019 David Greenberger

2002 Steve Matson

Carex subbracteata Small bract sedge

native
Perennial grasslike herb

2023 Dana York

2021 John Rawlings

2023 Ellen Uhler

Carex subfusca Brown sedge, Rusty slender sedge

native
Perennial grasslike herb

2010 Steve Matson

2013 Ron Vanderhoff

Carex subnigricans Blackish sedge, Nearlyblack sedge

native
Perennial grasslike herb

2015 Steve Matson

Carex tahoensis Tahoe sedge

• rare native
Perennial grasslike herb

2003 Steve Matson

Carex texensis Texas sedge

non-native
Perennial grasslike herb

2003 Steve Matson

Carex tiogana Tioga pass sedge, Tioga sedge

• rare native
Perennial grasslike herb

2019 Dean Wm. Taylor

1995 Dean Wm. Taylor

2003 Steve Matson

Carex tompkinsii Thompkins' sedge, Tompkins's sedge

• rare native
Perennial grasslike herb (rhizomatous)

2018 Steve Matson

Carex triquetra Triangular fruit sedge, Triangularfruit sedge

native
Perennial grasslike herb

2009 Adonis (Don) Tate

2015 Diane Etchison

2003 Steve Matson

Carex tumulicola Foothill sedge, Slender sedge, Split awn sedge

native
Perennial grasslike herb

2017 David Greenberger

2021 John Rawlings

Carex unilateralis Lateral sedge

native
Perennial grasslike herb

2023 Emily R. Allen

2009 Chris Wagner

2019 Wyatt Dooley

Carex utriculata Beaked sedge, Northwest territory sedge

native
Perennial grasslike herb

2014 Jim Moore

2018 Matt Berger

2022 Dana York

Carex vallicola Valley sedge

• rare native
Perennial grasslike herb

1998 Dean Wm. Taylor

2003 Steve Matson

Carex vernacula Native sedge

native
Perennial grasslike herb

2006 Steve Matson

Carex vesicaria Blister sedge

native
Perennial grasslike herb

2019 Steve Matson

2021 Julie A. Kierstead

2019 Steve Matson

Carex viridula ssp. viridula Little green sedge

• rare native
Perennial grasslike herb

2020 Dana York

Carex vulpinoidea Fox sedge

native
Perennial grasslike herb

2022 Donald Burk

2010 Dean Wm. Taylor, Ph.D.

Carex jepsonii Whitney's sedge

native
Perennial grasslike herb

2014 Steve Matson

Carex whitneyi Whitney's sedge

native
Perennial grasslike herb

2014 Steve Matson

Carex xerophila chaparral sedge

• rare native
Perennial herb

2020 Robert Katz

2020 Matt Berger

2020 Robert Katz

Carica papaya Papaya

non-native

CARICACEAE

Carissa macrocarpa Amatungulu

non-native
Tree, Shrub

2018 Ron Vanderhoff

2005 Joseph Dougherty/ecology.org

Carlowrightia arizonica Arizona carlowrightia

• rare native
Shrub

2017 Fred Melgert / Carla Hoegen

2020 Matt Berger

2017 Fred Melgert / Carla Hoegen

Carlquistia muirii Muir's tarplant

• rare native
Perennial herb (rhizomatous)

2019 Jacob Smith

2021 David Greenberger

Carnegiea gigantea Saguaro, giant cactus

• rare native
Shrub (stem succulent)

2019 Richard Spjut

2008 Neal Kramer

2010 Lee Dittmann

Carpenteria californica Bush anemone, Tree anemone

• rare native
Shrub

2017 Staci Markos

2018 Mike Russler

2013 Jean Pawek

Carpobrotus chilensis Sea fig

• invasive non-native
Perennial herb

2018 Nicole Leatherman

2016 Steve Matson

2021 Cynthia Powell

Mesembryanthemum chilense Sea fig

• invasive non-native
Perennial herb

2018 Nicole Leatherman

2016 Steve Matson

2021 Cynthia Powell

Carpobrotus edulis Hottentot fig, Iceplant, Sea fig

• invasive non-native
Perennial herb

2021 Michelle Karle

2017 Lisa Miller

2018 Cynthia Powell

Carrichtera annua Wards weed

• invasive non-native
Annual herb

2017 Jason Giessow

2023 Ron Vanderhoff

Carthamus creticus Smooth distaff thistle

non-native
Annual herb

2016 Amanda Mills

2020 Angelique Herman

Carthamus lanatus Woolly distaff thistle

• invasive non-native
Annual herb

2019 Lenihan Mazur

2019 Danielle Carney

Carthamus leucocaulos White stemmed distaff thistle, Whitestem distaff thistle

• invasive non-native
Annual herb

2001 CDFA

Carthamus tinctorius Safflower

non-native
Annual herb

2023 Ron Vanderhoff

2023 Donald Burk

2020 Mary Patterson

Carum carvi Caraway

non-native
Perennial herb

Carya illinoinensis Pecan

non-native
Perennial herb

2016 Steve Matson

Cascadia nuttallii Nuttall's saxifrage

• rare native
Perennial herb

2023 Dana York

2013 Dana York

2021 Scot Loring

Casimiroa edulis White sapote

non-native
Shrub, Tree

Cassia fistula Golden shower

non-native
Shrub

Cassia leptophylla

non-native
Shrub

Cassiope mertensiana Western moss heather, White mountain heather

native
Shrub

2021 Christopher Collier

2014 Steve Matson

Castanea dentata American chestnut

non-native
Tree

Castanea sativa European chestnut

non-native
Tree

Castela emoryi Crucifixion thorn

• rare native
Shrub

SIMAROUBACEAE

2020 David Greenberger

2003 Michael Charters

2009 Duncan S. Bell

Castilleja affinis Indian paintbrush

native
Perennial herb

2019 Aleksandra Evert

2019 Diane Etchison

Castilleja affinis ssp. affinis Coast indian paintbrush

native
Perennial herb

2006 Steve Matson

2019 Ron Vanderhoff

Castilleja affinis ssp. litoralis Coast indian paintbrush, Seashore indian paintbrush

native
Perennial herb

2017 Steve Matson

Castilleja affinis ssp. neglecta Tiburon indian paintbrush

native
Perennial herb (hemiparasitic)

Dr. Robert Thomas and Margaret Orr1999 California Academy of Sciences

2014 Christopher Gurney

2008 Lech Naumovich

Castilleja affinis var. neglecta Tiburon paintbrush

• rare native
Perennial herb

2022 R.A. Chasey

2021 R.A. Chasey

Castilleja ambigua Johnny nip, Paintbrush orthocarpus

native
Annual herb

2017 Steve Matson

2023 Steve Conger

Castilleja ambigua ssp. meadii Johnny nip, Paintbrush orthocarpus

native
Annual herb

2017 Steve Matson

2023 Steve Conger

Castilleja ambigua ssp. ambigua Johnny nip

native
Annual herb

2017 Toni Corelli

2013 James Gonsman

2018 Vernon Smith

Orthocarpus castillejoides Johnny nip

native
Annual herb

2017 Toni Corelli

2013 James Gonsman

2018 Vernon Smith

Castilleja ambigua ssp. humboldtiensis Humboldt bay owl's clover

native
Annual herb (hemiparasitic)

2017 Steve Matson

Castilleja ambigua ssp. insalutata Ambiguous indian paintbrush, Johnny nip

native
Annual herb

2022 Irene Rosen

Castilleja applegatei Pine indian paintbrush, Wavy leaf paintbrush, Wavy leaved paintbrush

native
Perennial herb

2019 Diane Etchison

2020 David Greenberger

Castilleja applegatei ssp. applegatei Pine indian paintbrush, Wavy leaf paintbrush, Wavy leaved paintbrush

native
Perennial herb

2019 Diane Etchison

2020 David Greenberger

Castilleja applegatei ssp. disticha Forked wavy leaf paintbrush, Wavyleaf indian paintbrush

native
Perennial herb

2021 Mike Russler

2022 Jeffrey Hapeman

2021 Mike Russler

Castilleja applegatei ssp. martinii Martin's paintbrush, Wavyleaf indian paintbrush

native
Perennial herb

2022 Mary Conway

2019 David Magney

Castilleja martinii var. clokeyi Martin's paintbrush, Wavyleaf indian paintbrush

native
Perennial herb

2022 Mary Conway

2019 David Magney

Castilleja applegatei ssp. pallida Brewer's indian paintbrush, Wavyleaf indian paintbrush

native
Perennial herb

2019 Bob Sweatt

Castilleja applegatei ssp. pinetorum Pine wavy leaf paintbrush, Wavy leaved indian paintbrush

native
Perennial herb

2015 Steve Matson

2014 Steve Matson

2015 Steve Matson

Castilleja applegatei var. pinetorum Pine wavy leaf paintbrush, Wavy leaved indian paintbrush

native
Perennial herb

2015 Steve Matson

2014 Steve Matson

2015 Steve Matson

Castilleja arachnoidea Cobwebby indian paintbrush, Cobwebby paintbrush

native
Perennial herb

2014 Steve Matson

2011 Steve Matson

Castilleja attenuata Narrow leaved owl's clover, Valley tassels

native
Annual herb

2019 Timothy Boomer

2022 Mike Russler

Castilleja brevilobata Short-lobed paintbrush

• rare native
Perennial herb

2023 Dana York

Castilleja hispida ssp. brevilobata Short-lobed paintbrush

• rare native
Perennial herb

2023 Dana York

Castilleja brevistyla Short style owl's clover, Shortstyle indian paintbrush

native
Annual herb

2019 Matt Berger

2024 Mike Russler

Castilleja campestris Vernal pool indian paintbrush, Yellow owl's clover

native
Annual herb

2023 Robin Carter-Ervin

2021 Robin Carter

2023 Robin Carter-Ervin

Castilleja campestris ssp. campestris Field owl clover, Vernal pool indian paintbrush, Yellow owl's clover

native
Annual herb

2021 Robin Carter

2022 Charles Russell

2021 Alaine Arslan

Castilleja campestris ssp. succulenta Succulent owl's clover

native
Annual herb (hemiparasitic)

2008 Chris Winchell

2009 Neal Kramer

2011 Dylan Neubauer

Castilleja angustifolia Desert paintbrush

native
Perennial herb

2006 Steve Matson

2011 Steve Matson

Castilleja angustifolia var. dubia Desert paintbrush

native
Perennial herb

2006 Steve Matson

2011 Steve Matson

Castilleja angustifolia var. flavescens Desert paintbrush

native
Perennial herb

2006 Steve Matson

2011 Steve Matson

Castilleja chromosa Desert paintbrush

native
Perennial herb

2006 Steve Matson

2011 Steve Matson

Castilleja cinerea Ash gray indian paintbrush, Ashgray indian paintbrush

• rare native
Perennial herb (hemiparasitic)

2018 Diane Etchison

2019 Manzanita Dictionary

2017 Tim Miller

Castilleja densiflora Dense flower owl's clover, Denseflower indian paintbrush

native
Annual herb

2023 Caitlin Kreutz

2019 David Greenberger

2016 Andrew Longman

Castilleja densiflora ssp. densiflora Dense flower owl's clover, Denseflower indian paintbrush

native
Annual herb

2018 Hayley Ross

2019 Verna Jigour

2022 Alice Cummings

Castilleja densiflora ssp. gracilis Denseflower indian paintbrush, Graceful owl's clover

native
Annual herb

2022 Ron Vanderhoff

Castilleja densiflora ssp. obispoensis Obispo indian paintbrush, San luis obispo owl's clover

native
Annual herb

2024 Kyle Suchy

2023 Kyle Suchy

2024 Kyle Suchy

Castilleja exserta Owl's clover, Purple owl's clover

native
Annual herb

2017 B.J. Dion

2018 Saskia Raether

2019 Diane Etchison

Castilleja exserta ssp. exserta; Owl's clover, Purple owl's clover

native
Annual herb

2017 B.J. Dion

2018 Saskia Raether

2019 Diane Etchison

Castilleja exserta ssp. exserta Exserted indian paintbrush, Pale purple owlclover, Purple owl's clover

native
Annual herb

2020 David Greenberger

2019 Ron Vanderhoff

2023 Ron Vanderhoff

Orthocarpus purpurascens Exserted indian paintbrush, Pale purple owlclover, Purple owl's clover

native
Annual herb

2020 David Greenberger

2019 Ron Vanderhoff

2023 Ron Vanderhoff

Castilleja exserta ssp. latifolia Purple owl's clover, Wideleaf indian paintbrush

native
Annual herb

2022 Julia Larke

2022 R.A. Chasey

2020 Mary Ann Machi

Castilleja exserta ssp. venusta Exserted indian paintbrush, Purple owl's clover

native
Annual herb

2021 R.A. Chasey

2019 Wendy Walker

Castilleja foliolosa Texas paintbrush, Woolly indian paintbrush

native
Perennial herb

2019 Ron Vanderhoff

2019 Diane Etchison

Castilleja gleasoni Mt. Gleason paintbrush

• rare native
Perennial herb

2023 Keir Morse

Geoff Burleigh

Castilleja grisea San clemente island indian paintbrush

• rare native
Perennial herb (hemiparasitic)

2011 Dylan Neubauer

Castilleja hispida Harsh indian paintbrush

native
Perennial herb (hemiparasitic)

2008 Matt Below

2021 Sheri Hagwood

2008 Matt Below

Castilleja hololeuca Island white-felted paintbrush

• rare native
Perennial herb

2014 Steve Matson

Castilleja lanata ssp. hololeuca Island white-felted paintbrush

• rare native
Perennial herb

2014 Steve Matson

Castilleja lacera Cut leaved owl's clover, Cutleaf indian paintbrush, Foothill owl's clover

native
Annual herb

2005 Keir Morse

2023 Robin Carter-Ervin

2021 Mike Russler

Castilleja lanata

native
Perennial herb (hemiparasitic)

2008 Larry Sward

2013 Wynn Anderson

Castilleja lasiorhyncha San bernardino mountains owl's clover, San bernardino mtns. owl's clover

• rare native
Annual herb (hemiparasitic)

2020 Diane Etchison

2019 Matt Berger

2019 Diane Etchison

Castilleja lassenensis Lassen paintbrush

• rare native
Perennial herb

2023 Dana York

Castilleja latifolia Monterey indian paintbrush, Seaside paintbrush

• rare native
Perennial herb (hemiparasitic)

2004 Keir Morse

2020 Mary Conway

Castilleja lemmonii Lemmon's indian paintbrush, Lemmon's paintbrush

native
Perennial herb

2021 Mike Russler

2008 Steve Matson

Castilleja linariifolia Desert paintbursh, Wyoming paintbrush

native
Perennial herb

2010 Steve Matson

2022 Steve Matson

Castilleja lineariloba Sagebrush indian paintbrush, Thin lobed owl's clover, Valley tassels

native
Annual herb

2016 Steve Matson

Castilleja mendocinensis Mendocino coast indian paintbrush

• rare native
Perennial herb (hemiparasitic)

2022 R.A. Chasey

2016 R. Adam Chasey

2016 Asa & Teresa Spade

Castilleja miniata Great red paintbrush, Scarlet paintbrush

native
Perennial herb

2014 Steve Matson

2020 Bob Sweatt

2013 BOB CASE

Castilleja miniata ssp. elata Siskiyou indian paintbrush

native
Perennial herb (hemiparasitic)

2018 Anna Sereno

Castilleja miniata ssp. miniata Giant red indian paintbrush, Scarlet indian paintbrush

native
Perennial herb

2014 Steve Matson

2016 Steve Matson

2021 Amber Bedgood

Castilleja minor Lesser indian paintbrush, Little paintbrush

native
Annual herb

2015 Steve Matson

2022 Amber Bedgood

2023 Ryan O'Dell

Castilleja minor ssp. stenantha Lesser indian paintbrush, Little paintbrush

native
Annual herb

2015 Steve Matson

2022 Amber Bedgood

2023 Ryan O'Dell

Castilleja minor var. exilis Lesser indian paintbrush, Little paintbrush

native
Annual herb

2015 Steve Matson

2022 Amber Bedgood

2023 Ryan O'Dell

Castilleja minor ssp. minor Lesser indian paintbrush, Lesser paintbrush

native
Annual herb

2021 Amber Bedgood

2021 Donald Burk

2015 Steve Matson

Castilleja minor ssp. spiralis Lesser indian paintbrush, Lesser paintbrush

native
Annual herb

2023 Rhonda Allen

2019 Ron Vanderhoff

2019 Matt Berger

Castilleja mollis Soft leaved indian paintbrush

• rare native
Perennial herb (hemiparasitic)

2000 John Game

Castilleja montigena Heckard's indian paintbrush

• rare native
Perennial herb (hemiparasitic)

2023 R.A. Chasey

2019 Diane Etchison

Castilleja nana Dwarf alpine indian paintbrush, Dwarf alpine paintbrush

native
Perennial herb

2022 Melissa Harbert

2005 Steve Matson

Castilleja parviflora Peirson's paintbrush

native
Perennial herb

2010 Steve Matson

2022 R.A. Chasey

2022 Steve Matson

Castilleja parviflora var. albida Peirson's paintbrush

native
Perennial herb

2010 Steve Matson

2022 R.A. Chasey

2022 Steve Matson

Castilleja parviflora var. olympica Peirson's paintbrush

native
Perennial herb

2010 Steve Matson

2022 R.A. Chasey

2022 Steve Matson

Castilleja parviflora var. oreopola Peirson's paintbrush

native
Perennial herb

2010 Steve Matson

2022 R.A. Chasey

2022 Steve Matson

Castilleja peirsonii Peirson's paintbrush

native
Perennial herb

2010 Steve Matson

2022 R.A. Chasey

2022 Steve Matson

Castilleja pilosa Parrothead indian paintbrush, Pilose paintbrush

native
Perennial herb

2020 Steve Matson

2008 Steve Matson

2004 Steve Matson

Castilleja pilosa var. pilosa Parrothead indian paintbrush, Pilose paintbrush

native
Perennial herb

2020 Steve Matson

2008 Steve Matson

2004 Steve Matson

Castilleja pilosa var. steenensis Parrothead indian paintbrush, Pilose paintbrush

native
Perennial herb

2020 Steve Matson

2008 Steve Matson

2004 Steve Matson

Castilleja plagiotoma Mojave indian paintbrush

• rare native
Perennial herb (hemiparasitic)

2016 Keir Morse

2019 Matt Berger

2011 Neal Kramer

Castilleja praeterita Salmon creek indian paintbrush, Salmon creek paintbrush

native
Perennial herb

2017 Ashley Olive

Castilleja pruinosa Frosted indian paintbrush, Frosted paintbrush

native
Perennial herb (hemiparasitic)

2022 Dana York

2014 Steve Matson

2023 Dana York

Castilleja rubicundula ssp. lithospermoides Cream sacs

native
Annual herb

Castilleja rubicundula ssp. lithospermoides

2016 Steve Matson

Castilleja rubicundula ssp. rubicundula Cream sacs

native
Annual herb

2019 Elizabeth Fedewa

2019 Paul Aigner

Castilleja schizotricha Split hair indian paintbrush, Splithair indian paintbrush

• rare native
Perennial herb (hemiparasitic)

2022 Dana York

2023 Dana York

Castilleja subinclusa Franciscan paint brush, Longleaf indian paintbrush

native
Perennial herb

2022 Dianne Lake

2022 Zoya Akulova-Barlow

2019 David popp

Castilleja subinclusa ssp. fanciscana Franciscan paint brush, Longleaf indian paintbrush

native
Perennial herb

2022 Dianne Lake

2022 Zoya Akulova-Barlow

2019 David popp

Castilleja subinclusa ssp. franciscana Franciscan paintbrush, Longleaf indian paintbrush

native
Perennial herb

2020 Hunter Breck

2014 James Gonsman

Castilleja subinclusa ssp. subinclusa Long leaf paintbrush, Longleaf indian paintbrush

native
Perennial herb

2021 Dianne Lake

2022 Dianne Lake

Castilleja sulphurea Sulphur indian paintbrush

non-native
Perennial herb

2013 Gary A. Monroe

2015 Barry Breckling

2012 Jean Pawek

Castilleja tenuis Hairy indian paintbrush, Hairy owl's clover

native
Annual herb

2005 Steve Matson

2023 R.A. Chasey

2008 Steve Matson

Orthocarpus hispidus Hairy indian paintbrush, Hairy owl's clover

native
Annual herb

2005 Steve Matson

2023 R.A. Chasey

2008 Steve Matson

Castilleja uliginosa Pitkin marsh indian paintbrush

• rare native
Perennial herb (hemiparasitic)

2002 John Game

Castilleja wightii Wight's indian paint brush, Wight's paintbrush

native
Perennial herb

2022 Suzanne L. Weakley

2023 Beth Reuter

2022 R.A. Chasey

Casuarina cunninghamiana River sheoak

non-native
Perennial herb

CASUARINACEAE

2018 Ron Vanderhoff

Casuarina equisetifolia Australian Pine, Beach sheoak

• invasive non-native
Tree

CASUARINACEAE

2018 Zoya Akulova

2015 Zoya Akulova

2017 MCOSD EDRR

Catalpa bignonioides Southern catalpa

non-native
Tree

2015 Ron Vanderhoff

2011 Ramona Robison

2014 Dean Kelch

Catalpa speciosa Northern catalpa

non-native
Tree

2016 Erik Larsen

2019 Randy Huey

Catha edulis Khat

non-native
Tree, Shrub

Catharanthus roseus Madagascar periwinkle

• invasive non-native
Shrub (stem succulent)

2020 Karla Navarro

Nick Kurzenko

2005 Luigi Rignanese

Caulanthus amplexicaulis Clasping leaved caulanthus, Claspingleaf wild cabbage

native
Annual herb

2023 Zach Kinman

2017 Aaron Echols

2023 Zach Kinman

Caulanthus amplexicaulis var. barbarae Claspingleaf wild cabbage, Santa barbara jewelflower

• rare native
Annual herb

2023 Bryant Baker

2023 Zach Kinman

Caulanthus anceps Lemmon's mustard

native
Annual herb

2006 Steve Matson

Caulanthus californicus California jewelflower

• rare native
Annual herb

2023 Mike Russler

2019 Adam Chasey

2023 Mike Russler

Caulanthus cooperi Cooper caulanthus, Cooper's jewel flower, Cooper's wild cabbage

native
Annual herb

2014 Steve Matson

2020 Steve Matson

Caulanthus coulteri Coulter's jewel flower, Coulter's wild cabbage

native
Annual herb

2023 Bryant Baker

2023 Wendy Walker

2014 Steve Matson

Caulanthus crassicaulis Thick stemmed caulanthus, Thickstem wild cabbage

native
Perennial herb

2011 Steve Matson

2023 richard mcneill

2011 Steve Matson

Caulanthus crassicaulis ssp. crassicaulis Thick stemmed caulanthus, Thickstem wild cabbage

native
Perennial herb

Caulanthus crassicaulis ssp. crassicaulis

2011 Steve Matson

2023 richard mcneill

2011 Steve Matson

Caulanthus crassicaulis var. crassicaulis Thick stemmed caulanthus, Thickstem wild cabbage

native
Perennial herb

Caulanthus crassicaulis var. crassicaulis

2011 Steve Matson

2023 richard mcneill

2011 Steve Matson

Caulanthus crassicaulis var. glaber Thick stemmed caulanthus, Thickstem wild cabbage

native
Perennial herb

2011 Steve Matson

2023 richard mcneill

2011 Steve Matson

Caulanthus flavescens Yellow california mustard

native
Annual herb

2019 John Rawlings

2015 John Doyen

Caulanthus glaucus Glaucous caulanthus, Glaucous wild cabbage

native
Perennial herb

2011 Steve Matson

Caulanthus hallii Hall's caulanthus, Hall's wild cabbage

native
Annual herb

2019 Matt Berger

2015 Keir Morse

Caulanthus heterophyllus San diego wild cabbage, Slender pod jewelflower

native
Annual herb

2023 Morgan Stickrod

2023 Caitlin Kreutz

2019 Ron Vanderhoff

Caulanthus inflatus Desert candle

native
Annual herb

2020 Wendy Walker

2020 David Greenberger

2023 Catherine Chang

Caulanthus lasiophyllus California mustard

native
Annual herb

2022 Steve Matson

2023 Steve Matson

2010 Steve Matson

Guillenia lasiophylla California mustard

native
Annual herb

2022 Steve Matson

2023 Steve Matson

2010 Steve Matson

Caulanthus lemmonii Lemmon's jewelflower, Lemmon's wild cabbage

• rare native
Annual herb

2016 Craig Fiehler

2023 Ellen Uhler

2011 Dylan Neubauer

Caulanthus major Slender wild cabbage

native
Perennial herb

2019 Aaron Echols

2021 R.A. Chasey

2012 Don Davis

Caulanthus major var. nevadensis Sierra nevada wild cabbage, Slender wild cabbage

• rare native
Perennial herb

2008 Gary A. Monroe

1983 Gary A. Monroe

Caulanthus pilosus Hairy wild cabbage, Chocolate drops

native
Annual, Perennial herb

2022 Steve Matson

2008 Steve Matson

2015 Steve Matson

Caulanthus simulans Payson's wild cabbage

• rare native
Annual herb

2019 Matt Berger

Caulerpa taxifolia Killer alga

non-native

CAULERPACEAE

Ceanothus americanus New jersey tea

non-native
Shrub

Ceanothus arboreus Catalina ceanothus, Feltleaf ceanothus, Island ceanothus

native
Shrub

2022 Cynthia Powell

2020 David Greenberger

Ceanothus arcuatus Arching ceanothus

native
Tree, Shrub

2021 Steve Matson

Ceanothus confusus Rincon ridge ceanothus

• rare native
Shrub

2021 R.A. Chasey

Ceanothus cordulatus Mountain whitethorn

native
Shrub

2021 Bob Sweatt

2021 Arlee Montalvo

2023 Julie A. Kierstead

Ceanothus crassifolius Hoary leaved ceanothus, Hoaryleaf ceanothus

native
Shrub

2021 Dave Beller

2018 Aaron Echols

2020 Bryant Baker

Ceanothus crassifolius var. crassifolius Hoary leaved ceanothus

native
Shrub

Ceanothus crassifolius var. crassifolius

2019 Aaron Echols

2019 Diane Etchison

2019 Ron Vanderhoff

Ceanothus cuneatus Buck brush, Wedgeleaf ceanothus

native
Shrub

2021 Steve Matson

Ceanothus cuneatus var. ramulosa Buck brush, Wedgeleaf ceanothus

native
Shrub

2021 Steve Matson

Ceanothus cuneatus var. cuneatus Buck brush, Buckbrush

native
Shrub

2022 Ryan O'Dell

2021 Steve Matson

2019 Cara Wilcox

Ceanothus ramulosus Buck brush, Buckbrush

native
Shrub

2022 Ryan O'Dell

2021 Steve Matson

2019 Cara Wilcox

Ceanothus cuneatus var. fascicularis Sand buck brush, Sedgeleaf buckbrush

• rare native
Shrub

2020 David Greenberger

2012 Neal Kramer

2022 Cynthia Powell

Ceanothus cuneatus var. ramulosus Buck brush

native
Shrub

2017 Robert Barnard

2020 Robert Steers

2023 Robert Steers

Ceanothus cyaneus Lakeside ceanothus, San diego buckbrush, San diego ceanothus

• rare native
Shrub

2017 Stacey Vielma

2012 Sherie Hubble

Ceanothus decornutus Nicasio ceanothus

• rare native
Shrub

2022 Hunter Breck

2019 Hunter Breck

2022 Hunter Breck

Ceanothus dentatus Dwarf ceanothus, Sandscrub ceanothus

native
Shrub

2022 R.A. Chasey

2008 Gary McDonald

2022 R.A. Chasey

Ceanothus divergens Calistoga ceanothus

• rare native
Shrub

2019 Susan McDougall

2021 R.A. Chasey

Ceanothus diversifolius Pinemat

native
Shrub

2021 Mike Russler

Ceanothus ferrisiae Coyote ceanothus

• rare native
Shrub

2020 R.A. Chasey

2019 Ken Hickman

Ceanothus foliosus Wavy leaved ceanothus, Wavyleaf ceanothus

native
Shrub

2023 Michelle Karle

2016 Ron Vanderhoff

2021 Michelle Karle

Ceanothus foliosus var. foliosus Wavy leaved ceanothus, Wavyleaf ceanothus

native
Shrub

2021 Zoya Akulova-Barlow

2022 Michelle Karle

2021 Michelle Karle

Ceanothus foliosus var. medius La cuesta ceanothus, Wavyleaf buckbrush

native
Shrub

2018 Michael Mitchell

2005 Dieter Wilken

Ceanothus foliosus var. vineatus Vine hill ceanothus

• rare native
Shrub

2019 David Magney

2017 Adam Chasey

Ceanothus fresnensis Fresno ceanothus, Fresno mat

• rare native
Shrub

2021 Mike Russler

Ceanothus gloriosus Glory mat, Point reyes ceanothus

native
Shrub

2021 Hunter Breck

2018 Hunter Breck

2020 R.A. Chasey

Ceanothus gloriosus var. exaltatus Glory brush, Point reyes ceanothus

• rare native
Shrub

2021 Hunter Breck

2021 Heather Morrison

Ceanothus gloriosus var. gloriosus Point reyes ceanothus

• rare native
Shrub

2020 Hunter Breck

2020 R.A. Chasey

Ceanothus gloriosus var. porrectus Inverness ceanothus, Mt. vision ceanothus

• rare native
Shrub

2020 Hunter Breck

2021 R.A. Chasey

Ceanothus greggii Desert ceanothus

native
Shrub

2010 James M. Andre

2004 James M. Andre

2005 James M. Andre

Ceanothus hearstiorum Hearst ranch buckbrush, Hearst's ceanothus

• rare native
Shrub

2009 Jean Pawek

Ceanothus impressus Santa barbara ceanothus

native
Shrub

2020 David Greenberger

2020 Angelique Herman

Ceanothus impressus var. impressus Santa barbara ceanothus

native
Shrub

2020 David Greenberger

2005 Dieter Wilken

Ceanothus impressus var. nipomensis Nipomo mesa ceanothus, Santa barbara ceanothus

native
Shrub

2006 Steve Matson

2018 Susan McDougall

Ceanothus incanus Coast whitethorn

native
Shrub

2021 Alison Gardner

2019 Cara Wilcox

2022 Mary Conway

Ceanothus integerrimus Deer brush, Deerbrush

native
Shrub

2015 Steve Matson

Ceanothus integerrimus var. integerrimus Deer brush

native
Shrub

Ceanothus integerrimus var. integerrimus

2022 Ryan O'Dell

2019 Ken Hickman

2020 Ken Hickman

Ceanothus integerrimus var. macrothyrsus Deerbrush

native
Shrub

Ceanothus integerrimus var. macrothyrsus

2015 Steve Matson

2014 Steve Matson

2015 Steve Matson

Ceanothus jepsonii Jepson ceanothus, Musk brush

native
Shrub

2015 James Gonsman

2018 Tina Curiel

2021 Julian Geoghegan

Ceanothus lemmonii Lemmon's ceanothus

native
Shrub

2008 Steve Matson

2016 Steve Matson

Ceanothus leucodermis Chaparral whitethorn

native
Shrub

2020 Bryant Baker

2019 Ron Vanderhoff

2019 Bryant Baker

Ceanothus maritimus Maritime ceanothus, San luis obispo ceanothus

• rare native
Shrub

2019 R.A. Chasey

2019 Susan McDougall

2022 Cindy Roessler

Ceanothus masonii Bolinas ceanothus, Mason's ceanothus

• rare native
Shrub

2015 Linda Vassallo

2019 R.A. Chasey

2018 Brian Charles

Ceanothus megacarpus Big pod ceanothus, Bigpod ceanothus

native
Shrub

2019 Bryant Baker

2015 Ron Vanderhoff

2019 Bryant Baker

Ceanothus megacarpus var. insularis Island bigpod ceanothus, Island ceanothus

• rare native
Shrub

2014 Steve Matson

Ceanothus megacarpus var. megacarpus Big pod ceanothus, Bigpod ceanothus

native
Shrub

2022 Ron Vanderhoff

Ceanothus divaricatus Hairy ceanothus

native
Shrub

2021 Bryant Baker

2017 Steve Matson

2019 Ron Vanderhoff

Ceanothus oliganthus Hairy ceanothus

native
Shrub

2021 Bryant Baker

2017 Steve Matson

2019 Ron Vanderhoff

Ceanothus oliganthus var. oliganthus Hairy ceanothus

native
Shrub

2019 Ron Vanderhoff

2021 Bryant Baker

Ceanothus oliganthus var. sorediatus Jim brush

native
Shrub

2022 R.A. Chasey

2017 Steve Matson

2019 Susan McDougall

Ceanothus sorediatus Jim brush

native
Shrub

2022 R.A. Chasey

2017 Steve Matson

2019 Susan McDougall

Ceanothus ophiochilus Vail lake ceanothus

• rare native
Shrub

2004 Brian Parker

Ceanothus otayensis Otay mountain ceanothus

• rare native
Shrub

2019 Susan McDougall

2021 Ron Vanderhoff

2019 Susan McDougall

Ceanothus palmeri Palmer ceanothus, Palmer's ceanothus

native
Shrub

2022 Ryan O'Dell

2019 Bryant Baker

2021 Emily Sluiman

Ceanothus papillosus warty-leaf ceanothus, Wartleaf ceanothus

native
Shrub

2022 Justin Luong

2019 Susan McDougall

2021 Mary Conway

Ceanothus parryi Parry ceanothus

native
Shrub

2022 Cynthia Powell

2018 Cynthia Powell

2022 Cynthia Powell

Ceanothus parvifolius Little leaf ceanothus, Littleleaf ceanothus

native
Shrub

2022 Mike Russler

Ceanothus greggii var. vestitus Mojave ceanothus

native
Shrub

2022 Steve Matson

2016 James Gonsman

Ceanothus vestitus Mojave ceanothus

native
Shrub

2022 Steve Matson

2016 James Gonsman

Ceanothus perplexans Cupped leaf ceanothus

native
Shrub

2010 Sherie Hubble

2016 Ron Vanderhoff

2020 David Greenberger

Ceanothus pinetorum Coville ceanothus, Kern ceanothus

• rare native
Shrub

2021 Dana York

2022 Mike Russler

2020 Christopher Winchell

Ceanothus prostratus Mahala mats, Pinemat

native
Shrub

2020 Bob Sweatt

2021 Steve Matson

Ceanothus prostratus var. prostratus Mahala mat

native
Shrub

2021 Steve Matson

2018 Steven Perry

Ceanothus pumilus Dwarf ceanothus, Siskiyou mat

native
Shrub

2017 Steve Matson

Ceanothus purpureus Hollyleaf ceanothus, Napa ceanothus

• rare native
Shrub

2020 R.A. Chasey

2015 James Gonsman

2020 R.A. Chasey

Ceanothus rigidus Monterey ceanothus

• rare native
Shrub

2021 Emily Poor

2018 Gary McDonald

Ceanothus roderickii Pine hill buckbrush, Pine hill ceanothus

• rare native
Shrub

2020 Matt Berger

Ceanothus sanguineus Red stem ceanothus, Redstem ceanothus

native
Shrub

2021 Steve Matson

Ceanothus sonomensis Sonoma ceanothus

• rare native
Shrub

2012 Jake Ruygt

2015 Susan McDougall

2012 Aaron Arthur

Ceanothus spinosus Greenbark ceanothus, Redheart

native
Tree, Shrub

2018 Ron Vanderhoff

2012 Ron Vanderhoff

2019 Ron Vanderhoff

Ceanothus thyrsiflorus Blueblossom

native
Tree, Shrub

2020 David Greenberger

2022 R.A. Chasey

2019 Patrick Furtado

Ceanothus thyrsiflorus var. griseus Carmel ceanothus

native
Shrub

2006 Steve Matson

Gerald and Buff Corsi � 2009 California Academy of Sciences

2014 Robert Sikora

Ceanothus thyrsiflorus var. thyrsiflorus Blue blossom

native
Tree, Shrub

Ceanothus thyrsiflorus var. thyrsiflorus

2019 Patrick Furtado

2022 Mary Conway

2022 Cynthia Powell

Ceanothus tomentosus Woolly leaf ceanothus, Woolyleaf ceanothus

native
Shrub

2019 Diane Etchison

2022 Ron Vanderhoff

2019 Ron Vanderhoff

Ceanothus velutinus Tobacco brush, snowbrush

native
Tree, Shrub

2020 Bob Sweatt

2019 Susan McDougall

2021 Mike Russler

Ceanothus velutinus var. hookeri Tobacco brush, snowbrush

native
Tree, Shrub

2020 Bob Sweatt

2019 Susan McDougall

2021 Mike Russler

Ceanothus velutinus var. velutinus Tobacco brush, snowbrush

native
Tree, Shrub

2020 Bob Sweatt

2019 Susan McDougall

2021 Mike Russler

Ceanothus verrucosus Barranca brush, White coast ceanothus, Wart-Stemmed Ceanothus

• rare native
Shrub

2019 Diane Etchison

2019 Angelique Herman

2015 Ron Vanderhoff

Ceanothus Xlorenzenii Whitethorn x tobacco brush

native
Tree, Shrub

1995 Saint Mary's College of California

Cedrela odorata Spanish cedar

non-native
Tree

MELIACEAE

Cedronella canariensis Herb of gilead

non-native
Perennial herb, Shrub

2010 Zoya Akulova

Cedrus deodara Deodar cedar, Himalayan Cedar

non-native
Tree

2023 John Malpas

2022 Andy Ford

2022 Ron Vanderhoff

Cedrus libani var. stenocoma

non-native
Tree

2017 MCOSD EDRR

Nick Kurzenko (var. stenocoma)

Celtis australis European hackberry

non-native
Tree

2021 Jennifer Mo

2005 Luigi Rignanese

Celtis laevigata Sugarberry

native
Tree

2017 Zoya Akulova

2016 Zoya Akulova

Celtis occidentalis Sugarberry

native
Tree

2017 Zoya Akulova

2016 Zoya Akulova

Celtis reticulata Net leaf hackberry, Western hackberry

native
Tree

2012 Denise Waterbury

0000 Denise Waterbury

2004 James M. Andre

Celtis sinensis Chinese hackberry

non-native
Tree

2020 Jennifer Mo

2016 Zoya Akulova

Cenchrus echinatus Southern sandbur

• invasive non-native
Annual grass

2017 Ron Vanderhoff

2018 michelle peruzzi

2017 Fred Melgert / Carla Hoegen

Cenchrus incertus Coast sandbur

• invasive non-native
Annual grass

2022 Jesse Potter

2001 CDFA

Cenchrus spinifex Coast sandbur

• invasive non-native
Annual grass

2022 Jesse Potter

2001 CDFA

Cenchrus longispinus Mat sandbur

• invasive non-native
Annual grass

2018 James Bailey

2018 Ron Vanderhoff

Centaurea benedicta Blessed thistle

non-native
Annual herb

2019 Kevin Mason

2021 Aaron Echols

2020 Diane Etchison

Cnicus benedictus Blessed thistle

non-native
Annual herb

2019 Kevin Mason

2021 Aaron Echols

2020 Diane Etchison

Centaurea calcitrapa Purple star thistle, Red star thistle

• invasive non-native
Annual, Perennial herb

2021 R.A. Chasey

2019 MCOSD EDRR

2022 R.A. Chasey

Centaurea cineraria Dusty miller

non-native
Perennial herb

2001 CDFA

Centaurea cyanus Garden cornflower

non-native
Annual herb

2019 David Greenberger

2020 Joe Engelbrecht

2020 David Wolfson

Centaurea cyanus var. alba Garden cornflower

non-native
Annual herb

2019 David Greenberger

2020 Joe Engelbrecht

2020 David Wolfson

Centaurea diffusa Diffuse knapweed, White knapweed

• invasive non-native
Perennial herb

2020 David Greenberger

2022 Bob Sweatt

2019 Catherine Talbot

Centaurea diluta North African knapweed, Star thistle

• invasive non-native
Annual herb

2020 Ron Vanderhoff

2022 Ron Vanderhoff

2018 James Bailey

Centaurea iberica Iberian knapweed

• invasive non-native
Perennial herb

2016 Don Thomas

2001 CDFA

Centaurea jacea Brownray knapweed, Brown knapweed

non-native
Perennial herb

2020 Domenic Bongio

2022 Patrick Hoffman

2019 Jonathan Lee

Centaurea xpratensis Brownray knapweed, Brown knapweed

non-native
Perennial herb

2020 Domenic Bongio

2022 Patrick Hoffman

2019 Jonathan Lee

Centaurea jacea ssp. jacea Brown knapweed

non-native
Perennial herb

2005 Dr. Amadej Trnkoczy

Centaurea jacea ssp. nigra Black knapweed

non-native
Perennial herb

2005 Louis-M. Landry

2009 Phil Pullen

Centaurea nigra Black knapweed

non-native
Perennial herb

2005 Louis-M. Landry

2009 Phil Pullen

Centaurea melitensis Maltese star thistle, Napa star thistle, Tocalote

• invasive non-native
Annual herb

2019 Ron Vanderhoff

2020 Ron Vanderhoff

2020 Laura Anna Arellano

Centaurea debeauxii ssp. thuillieri Tyrol knapweed

non-native
Perennial herb

2007 Keir Morse

Centaurea nigrescens Tyrol knapweed

non-native
Perennial herb

2007 Keir Morse

Centaurea xpouzinii Pouzin's star-thistle

non-native
Perennial herb

Centaurea solstitialis Barnaby's thistle, Yellow star thistle

• invasive non-native
Annual herb

2022 Cynthia Powell

2019 Arlee Montalvo

2022 Mary Herr

Centaurea stoebe ssp. stoebe Spotted knapweed

non-native
Perennial herb

2020 Bob Sweatt

2022 BOB CASE

2019 Amanda Mills

Centaurea biebersteinii Spotted knapweed

• invasive non-native
Perennial herb

2021 Patrick Hoffman

2022 Patrick Hoffman

2019 Amanda Mills

Centaurea maculosa Spotted knapweed

• invasive non-native
Perennial herb

2021 Patrick Hoffman

2022 Patrick Hoffman

2019 Amanda Mills

Centaurea stoebe ssp. micranthos Spotted knapweed

• invasive non-native
Perennial herb

2021 Patrick Hoffman

2022 Patrick Hoffman

2019 Amanda Mills

Centaurea sulphurea Sicilian star thistle, Sulphur knapweed

• invasive non-native
Annual herb

2019 Stacie Sherman

2017 Stacie Sherman

2009 Ramona Robison

Centaurea triumfettii ssp. adscendens Squarrose knapweed

• invasive non-native
Perennial herb

2013 Gerald Carr

Centaurea virgata ssp. squarrosa Squarrose knapweed

• invasive non-native
Perennial herb

2013 Gerald Carr

Centaurium erythraea Common centaury, European centaury

non-native
Annual herb

2022 Robin Harper

2011 Ryan Batten

2010 Dr.Thomas K. Voekler

Centaurium erythraea ssp. erythraea Common centaury, European centaury

non-native
Annual herb

2022 Robin Harper

2011 Ryan Batten

2010 Dr.Thomas K. Voekler

Centaurium pulchellum Branched centaury

non-native
Annual herb

2007 Luigi Rignanese

2008 Louis-M. Landry

Centaurium tenuiflorum Slender centaury

non-native
Annual herb

2019 David Greenberger

2017 MCOSD EDRR

2014 Richard Chasey

Centranthus ruber Jupiter's beard, Red valerian

non-native
Annual, Perennial herb

2013 Zachary Mikalonis

2022 Justin Felder

2020 Deborah Dozier

Centromadia fitchii Spikeweed

native
Annual herb

2015 Steve Matson

2019 Julie Kierstead Nelson

2021 Mike Russler

Hemizonia fitchii Spikeweed

native
Annual herb

2015 Steve Matson

2019 Julie Kierstead Nelson

2021 Mike Russler

Centromadia parryi ssp. australis Southern tarplant

• rare native
Annual herb

2019 Ron Vanderhoff

2018 Ron Vanderhoff

2023 Elizabeth Lockhart

Centromadia parryi ssp. congdonii Congdon's tarplant

• rare native
Annual herb

2013 Toni Corelli

2023 Jordan Collins

2021 Michele Hammond

Centromadia parryi ssp. parryi Pappose tarplant

• rare native
Annual herb

2009 Toni Corelli

Centromadia parryi ssp. rudis Pappose tarweed

• rare native
Annual herb

2019 Robbie Lee

2017 Henry Morales

2022 Ryan O'Dell

Centromadia pungens Common tarweed, Common spikeweed

native
Annual herb

2014 Ron Vanderhoff

2022 Steve Matson

2022 Eric Koberle

Hemizonia pungens Common tarweed, Common spikeweed

native
Annual herb

2014 Ron Vanderhoff

2022 Steve Matson

2022 Eric Koberle

Centromadia pungens ssp. laevis Smooth tarplant

• rare native
Annual herb

2022 Eric Koberle

Centromadia pungens ssp. pungens Common tarweed

native
Annual herb

2022 Cynthia Powell

2021 Mike Russler

2022 Cynthia Powell

Hemizonia pungens ssp. pungens Common tarweed

native
Annual herb

2022 Cynthia Powell

2021 Mike Russler

2022 Cynthia Powell

Centrostegia thurberi Red triangles, Thurber spiny herb, Thurber's spineflower

native
Annual herb

2010 Steve Matson

2022 Steve Matson

Cephalanthera austiniae Phantom orchid

native
Perennial herb

2019 Wendy Wilmes

2015 Steve Matson

2012 Kim Cabrera

Cephalanthus occidentalis Common buttonbush

native
Shrub

2021 Mike Russler

2017 Carl Bjork

Cephalanthus occidentalis var. californicus Common buttonbush

native
Shrub

Cephalanthus occidentalis var. californicus

2021 Mike Russler

2017 Carl Bjork

Cerastium arvense Field chickweed, Meadow chickweed

native
Perennial herb

2024 Mary Ann Machi

2019 John Rawlings

2024 Steve Conger

Cerastium arvense ssp. strictum Field chickweed

native
Perennial herb

2023 Dana York

Cerastium strictum Field chickweed

native
Perennial herb

2023 Dana York

Cerastium alpinum ssp. lanatum Bering chickweed

native
Perennial herb

2020 Bob Sweatt

2012 Gary A. Monroe

Cerastium beeringianum Bering chickweed

native
Perennial herb

2020 Bob Sweatt

2012 Gary A. Monroe

Cerastium beeringianum ssp. earlei Bering chickweed

native
Perennial herb

2020 Bob Sweatt

2012 Gary A. Monroe

Cerastium fontanum ssp. vulgare Big chickweed, Common chickweed, Mouseear chickweed

non-native
Perennial herb

2021 Jacob Smith

Cerastium glomeratum Large mouse ears, Mouseear chickweed, Sticky chickweed

non-native
Annual herb

2023 Ron Vanderhoff

2023 R.A. Chasey

Cerastium tomentosum Snow in summer

non-native
Perennial herb

2005 Louis-M. Landry

Cerastium viride Field chickweed

native
Perennial herb

2019 Susan McDougall

2021 Suzanne L. Weakley

Ceratonia siliqua St. John's bread, Carob

non-native
Tree

2021 Ron Vanderhoff

2022 Ron Vanderhoff

2022 Art Clark

Ceratophyllum demersum Coon's tail, Hornwort

native
Perennial herb

CERATOPHYLLACEAE

2023 Zoya Akulova-Barlow

2018 Ron Vanderhoff

2022 Donald Burk

Ceratostigma plumbaginoides Blue leadwood

non-native
Perennial herb

Cercis canadensis Redbud, Western redbud

native
Tree, Shrub

2023 Cynthia Powell

2020 Julie A. Kierstead

2023 Cynthia Powell

Cercis canadensis var. mexicana Redbud, Western redbud

native
Tree, Shrub

2023 Cynthia Powell

2020 Julie A. Kierstead

2023 Cynthia Powell

Cercis canadensis var. texensis Redbud, Western redbud

native
Tree, Shrub

2023 Cynthia Powell

2020 Julie A. Kierstead

2023 Cynthia Powell

Cercis occidentalis Redbud, Western redbud

native
Tree, Shrub

2023 Cynthia Powell

2020 Julie A. Kierstead

2023 Cynthia Powell

Cercis occidentalis var. orbiculata Redbud, Western redbud

native
Tree, Shrub

2023 Cynthia Powell

2020 Julie A. Kierstead

2023 Cynthia Powell

Cercocarpus betuloides Birch leaf mountain mahogany, Mountain mahogany

native
Tree, Shrub

2020 Rebecca Schoenenberger

2020 Aaron Echols

2016 Cindy Roessler

Cercocarpus montanus Birch leaf mountain mahogany, Mountain mahogany

native
Tree, Shrub

2020 Rebecca Schoenenberger

2020 Aaron Echols

2016 Cindy Roessler

Cercocarpus montanus var. glaber Birch leaf mountain mahogany, Mountain mahogany

native
Tree, Shrub

2020 Rebecca Schoenenberger

2020 Aaron Echols

2016 Cindy Roessler

Cercocarpus betuloides var. betuloides Birch leaf mountain mahogany

native
Tree, Shrub

2019 Ron Vanderhoff

2016 Ron Vanderhoff

Cercocarpus betuloides var. blancheae Catalinamahogany, Island mountain mahogany

• rare native
Shrub

2020 David Greenberger

2014 Steve Matson

Cercocarpus betuloides var. macrourus Few flowered mountain mahogany

native
Tree, Shrub

2002 University of California Museum of Paleontology

2008 John Dittes

Cercocarpus macrourus Few flowered mountain mahogany

native
Tree, Shrub

2002 University of California Museum of Paleontology

2008 John Dittes

Cercocarpus ledifolius Curl leaf mountain mahogany, Desert mountain mahogany

native
Tree, Shrub

2010 Steve Matson

2011 Steve Matson

Cercocarpus ledifolius var. intercedens Curl leaf mountain mahogany, Curl leaved mountain mahogany

native
Tree, Shrub

2007 Steve Matson

2010 Steve Matson

Cercocarpus ledifolius var. intermontanus Curl leaf mountain mahogany, Curl leaved mountain mahogany

native
Tree, Shrub

Cercocarpus ledifolius var. intermontanus

2007 Steve Matson

2010 Steve Matson

Cercocarpus intricatus Little leaved mountain mahogany

native
Shrub

2017 Steve Matson

2011 Steve Matson

Cercocarpus ledifolius var. intricatus Little leaved mountain mahogany

native
Shrub

2017 Steve Matson

2011 Steve Matson

Cercocarpus ledifolius var. ledifolius Curl leaf mountain mahogany

native
Tree, Shrub

2020 Bob Sweatt

2023 Jonathan Widdicombe

2018 Richard Spjut

Cercocarpus minutiflorus Smooth mountain mahogany

native
Shrub

2012 Ron Vanderhoff

2020 Ron Vanderhoff

Cercocarpus traskiae Catalina island mountain mahogany

• rare native
Shrub

2019 Aaron Echols

1993 Dean Wm. Taylor

Cestrum aurantiacum Orange jessamine

non-native
Tree

Cestrum elegans Purple cestrum

non-native
Tree

2020 will spangler

2012 Dean Wm. Taylor, Ph.D.

2019 Wyatt Dooley

Cestrum fasciculatum Purple cestrum

non-native
Tree

2020 will spangler

2012 Dean Wm. Taylor, Ph.D.

2019 Wyatt Dooley

Cestrum nocturnum Night jessamine

non-native
Tree

2021 Ron Vanderhoff

Cestrum parqui Chilean jessamine

• invasive non-native
Tree

2011 Michael Perlmutter

Cevallia sinuata Stinging serpent

non-native
Perennial herb

2017 Wynn Anderson

2019 Richard Spellenberg

2017 Wynn Anderson

Chaenactis alpigena Southern sierra chaenactis, Southern sierra pincushion

native
Perennial herb

2019 Matt Berger

2019 R.A. Chasey

Chaenactis artemisiifolia Artemisia leaved chaenactis, White pincushion

native
Annual herb

2022 Rosalind Helfand

2023 Julia Markey

2022 Ron Vanderhoff

Chaenactis carphoclinia Pebble pincushion

native
Annual herb

2019 Matt Berger

2022 Mike Russler

Chaenactis carphoclinia var. carphoclinia Pebble pincushion

native
Annual herb

Chaenactis carphoclinia var. carphoclinia

2019 Matt Berger

2020 Matt Berger

Chaenactis carphoclinia var. peirsonii Peirson's pincushion

• rare native
Annual herb

2016 Fred Melgert

Chaenactis douglasii Chaenactis, Hoary chaenactis

native
Annual, Perennial herb

2011 Steve Matson

2007 Steve Matson

Chaenactis alpina Alpine dusty pincushion

• rare native
Perennial herb

2007 Steve Matson

Chaenactis douglasii var. alpina Alpine dusty pincushion

• rare native
Perennial herb

2007 Steve Matson

Chaenactis douglasii var. douglasii Hoary chaenactis, Dusty pincushions, False Yarrow

native
Annual, Perennial herb

2009 Steve Matson

Chaenactis fremontii Fremont pincushion, Pincushion flower

native
Annual herb

2019 Matt Berger

2021 Julie Ann Watson

2020 Kimberly Coates

Chaenactis glabriuscula Common yellow chaenactis, Yellow pincushion

native
Annual herb

2019 Marisa Persaud

2016 Steve Matson

2019 Marisa Persaud

Chaenactis glabriuscula var. orcuttiana_intergrade Common yellow chaenactis, Yellow pincushion

native
Annual herb

Chaenactis glabriuscula var. orcuttiana_intergrade

2019 Marisa Persaud

2016 Steve Matson

2019 Marisa Persaud

Chaenactis glabriuscula var. glabriuscula Common yellow chaenactis, Yellow pincushion

native
Annual herb

Chaenactis glabriuscula var. glabriuscula

2020 David Greenberger

2020 R.A. Chasey

Chaenactis glabriuscula var. heterocarpha Variable fruited yellow chaenactis, Yellow pincushion, Inner Coast Range Pincushion

native
Annual herb

Chaenactis glabriuscula var. heterocarpha

2020 David Greenberger

2022 Ryan O'Dell

2021 Steve Laymon

Chaenactis glabriuscula var. lanosa Pincushion flower, Woolly yellow chaenactis

native
Annual herb

2019 Susan McDougall

2008 Keir Morse

Chaenactis lanosa Pincushion flower, Woolly yellow chaenactis

native
Annual herb

2019 Susan McDougall

2008 Keir Morse

Chaenactis glabriuscula var. megacephala Big headed yellow chaenactis, Yellow pincushion

native
Annual herb

Chaenactis glabriuscula var. megacephala

2017 Ryan Kelly

2009 Barry Breckling

Chaenactis glabriuscula var. orcuttiana Orcutt's yellow chaenactis, Orcutt's yellow pincushion

• rare native
Annual herb

2015 jonathan coffin

2011 Aaron Arthur

Chaenactis macrantha Large flowered chaenactis, Mohave pincushion

native
Annual herb

2010 Steve Matson

2022 Steve Matson

Chaenactis nevadensis Northern sierra chaenactis, Sierra chaenactis

native
Perennial herb

2017 Steve Matson

2023 Jamie Spielmann

2019 Matt Berger

Chaenactis parishii Parish's chaenactis

• rare native
Perennial herb

2015 Keir Morse

Chaenactis santolinoides Santolina chaenactis, Santolina pincushion

native
Perennial herb

2019 Matt Berger

2019 Diane Etchison

2021 Arlee Montalvo

Chaenactis stevioides Desert pincushion, Esteve pincushion

native
Annual herb

2020 Mitchell Coleman

2019 Matt Berger

2022 Steve Matson

Chaenactis suffrutescens Shasta chaenactis

• rare native
Perennial herb

2015 Steve Matson

Chaenactis xantiana Fleshcolor pincushion, Xantus pincushion, Xantus' chaenactis

native
Annual herb

2019 Matt Berger

2021 Mike Russler

Chaetadelpha wheeleri Wheeler's chaetadelpha, Wheeler's skeletonweed

• rare native
Perennial herb

2005 Steve Matson

Chaetopappa ericoides Heath leaved chaetopappa, Rose heath

native
Perennial herb

2020 Steve Matson

Chamaebatia australis Southern bearclover, Southern mountain misery

• rare native
Shrub

2013 Keir Morse

2023 Matt Berger

Chamaebatia foliolosa Bearclover, mountain misery, Sierran mountain misery

native
Shrub

2016 Steve Matson

2018 Brittany Erickson

Chamaebatiaria millefolium Desertsweet, Fern bush

native
Shrub

2020 Matt Berger

2017 Steve Matson

Chamaecyparis lawsoniana Port orford cedar

native
Tree

2021 Julie A. Kierstead

2018 Julie Kierstead Nelson

2019 Tristan K Cole

Chamaecyparis thyoides Atlantic white cedar

non-native
Tree

Chamaemelum fuscatum Dusky dog fennel, Dusky dogfennel

non-native
Annual herb

2020 Krissa Klein

Joanne Dean-Freemire, Mary Ann Hannon, Kevin Hintsa, Ron Lindeman, Helen Hancock

2015 Richard Spellenberg

Chamaemelum nobile Roman chamomile, Russian chamomile

non-native
Perennial herb

2023 DPW Staff

2008 Zoya Akulova

Chamaesaracha nana Dwarf chamaesaracha, Dwarf chamaesarachia

native
Perennial herb

2019 Bob Case

2005 Steve Matson

2022 Bob Sweatt

Leucophysalis nana Dwarf chamaesaracha, Dwarf chamaesarachia

native
Perennial herb

2019 Bob Case

2005 Steve Matson

2022 Bob Sweatt

Chamaesaracha sordida Hairy five eyes

non-native
Perennial herb

Chamerion angustifolium Fireweed

native
Perennial herb

2021 Arlee Montalvo

2020 Joey Santore

2021 Mary Ann Machi

Chamerion angustifolium ssp. angustifolium Fireweed

native
Perennial herb

Chamerion angustifolium ssp. angustifolium

2021 Arlee Montalvo

2020 Joey Santore

2021 Mary Ann Machi

Epilobium angustifolium Fireweed

native
Perennial herb

2021 Arlee Montalvo

2020 Joey Santore

2021 Mary Ann Machi

Epilobium angustifolium ssp. angustifolium Fireweed

native
Perennial herb

Epilobium angustifolium ssp. angustifolium

2021 Arlee Montalvo

2020 Joey Santore

2021 Mary Ann Machi

Chamerion angustifolium ssp. circumvagum Fireweed

native
Perennial herb

Chamerion angustifolium ssp. circumvagum

2022 Mike Russler

Epilobium angustifolium ssp. circumvagum Fireweed

native
Perennial herb

Epilobium angustifolium ssp. circumvagum

2022 Mike Russler

Chamerion latifolium Dwarf fireweed

native
Perennial herb

2020 Bob Sweatt

2010 Ron Wolf

Epilobium latifolium Dwarf fireweed

native
Perennial herb

2020 Bob Sweatt

2010 Ron Wolf

Chasmanthe bicolor Chasmanthe

non-native
Perennial herb

2022 Ken Lunders

2018 John Doyen

2022 Randy Huey

Chasmanthe floribunda African cornflag, Chasmanthe

• invasive non-native
Perennial herb

2020 Ron Vanderhoff

2017 Ron Vanderhoff

Chenopodium album Lamb's quarters, Lambs quarters, White goosefoot

non-native
Annual herb

2022 Ron Vanderhoff

2014 Toni Corelli

2022 Ron Vanderhoff

Chenopodium atrovirens Dark green goosefoot, Forest goosefoot, Pinyon goosefoot

native
Annual herb

2021 Steve Matson

Chenopodium berlandieri Berlandier's goosefoot, Pit seed goosefoot

native
Annual herb

2003 Keir Morse

Chenopodium berlandieri var. sinuatum Pitseed goosefoot

native
Annual herb

2014 Ron Vanderhoff

2023 Dianne Lake

2018 Ron Vanderhoff

Chenopodium bonus-henricus Good king henry

non-native
Perennial herb

Chenopodium californicum California goosefoot, Pigweed, Soaproot

native
Perennial herb

2023 Mike Russler

Chenopodium capitatum Blite goosefoot, Strawberry blite

non-native
Annual herb

2009 Barry Breckling

2010 Louis-M. Landry

2013 Ron Wolf

Chenopodium capitatum var. capitatum Strawberry blite

native
Annual herb

2010 Louis-M. Landry

Chenopodium capitatum var. parvicapitatum Strawberry blite

non-native
Annual herb

Chenopodium capitatum var. parvicapitatum

2014 Trent M. Draper

Chenopodium chenopodioides Low goosefoot

non-native
Annual herb

2015 Robert Carr

2013 David Ogden

Chenopodium desiccatum Aridland goosefoot, Dry goosefoot

native
Annual herb

2003 Keir Morse

Chenopodium fremontii Fremont's goosefoot

native
Annual herb

2021 Arlee Montalvo

2017 Drew Beccue

Chenopodium glaucum Oak leaved goosefoot

native
Annual herb

2020 Ron Vanderhoff

Chenopodium incanum var. occidentale Mealy goosefoot, Pigweed, Western goosefoot

native
Perennial herb

2017 Steve Matson

Chenopodium leptophyllum Narrowleaf goosefoot, Thin leaved goosefoot

native
Annual herb

2022 Steve Matson

2011 Steve Matson

Chenopodium littoreum Coastal goosefoot

• rare native
Annual herb

2014 John Sayers

2012 Terrence Gosliner

Chenopodium macrospermum Largeseed goosefoot

non-native
Annual herb

2011 Zoya Akulova

2022 Morgan Stickrod

2011 Zoya Akulova

Chenopodium murale Nettle leaf goosefoot, Sowbane

non-native
Annual herb

2020 Ron Vanderhoff

2019 Diane Etchison

2020 Ron Vanderhoff

Chenopodium nevadense Nevada goosefoot

native
Annual herb

2015 Steve Matson

2012 Lynn Robertson

Chenopodium opulifolium Seaport goosefoot, White goosefoot

non-native
Annual herb

2006 Luigi Rignanese

Chenopodium simplex Large seeded goosefoot, Mapleleaf goosefoot

• rare native
Annual herb

2006 Louis-M. Landry

2016 Keir Morse

2005 Larry Blakely

Chenopodium vulvaria Stinking goosefoot

non-native
Annual herb

2022 Donald Burk

2015 Zoya Akulova

Chilopsis linearis Desert willow

native
Shrub

2005 Deborah Dozier

2019 David Greenberger

2020 Deborah Dozier

Chilopsis linearis ssp. aculeata Desert willow

native
Shrub

2005 Deborah Dozier

2019 David Greenberger

2020 Deborah Dozier

Chilopsis linearis ssp. arcuata Desert willow

native
Shrub

2017 Thomas Egan

2020 R.A. Chasey

Chimaphila menziesii Little prince's pine, Pipsissewa

native
Perennial herb

2006 Steve Matson

2023 Alaine Arslan

2019 Jacob Smith

Chimaphila umbellata Blake's prince's pine, Pipsissewa, Prince's Pine

native
Perennial herb

2015 Steve Matson

2019 Steve Matson

Chimaphila umbellata ssp. umbellata Blake's prince's pine, Pipsissewa, Prince's Pine

native
Perennial herb

2015 Steve Matson

2019 Steve Matson

Chimaphila umbellata var. acuta Blake's prince's pine, Pipsissewa, Prince's Pine

native
Perennial herb

2015 Steve Matson

2019 Steve Matson

Chionanthus virginicus White fringetree

non-native
Vine, Shrub

Chloracantha spinosa Spiny chloracantha

native
Perennial herb

2022 Sandra Torres

2014 Keir Morse

Chloracantha spinosa var. spinosa Spiny goldenbush

native
Perennial herb

2014 Keir Morse

Chloris gayana Rhodes grass

non-native
Perennial grass

2005 Steve Matson

Chloris truncata Australian fingergrass, Truncate finger grass

non-native
Perennial grass

2001 CDFA

Chloris virgata Feather finger grass, Feather fingergrass

non-native
Annual grass

2005 Steve Matson

Charles Webber 1998 California Academy of Sciences

Chlorogalum angustifolium Narrow leaved soaproot, Narrowleaf soap plant

native
Perennial herb

2020 Terrence Gosliner

2019 Julie Kierstead Nelson

2018 Julie Kierstead Nelson

Chlorogalum grandiflorum Red hills soap plant, Red hills soaproot

• rare native
Perennial herb (bulb)

2019 David Greenberger

2022 Cynthia Powell

Chlorogalum pomeridianum Amole, Soap plant, Soaproot

native
Perennial herb

2019 Patrick Furtado

2020 Robert Katz

2019 Diane Etchison

Chlorogalum pomeridianum ssp. pomeridianum Amole, Soap plant, Soaproot

native
Perennial herb

Chlorogalum pomeridianum ssp. pomeridianum

2019 Patrick Furtado

2020 Robert Katz

2019 Diane Etchison

Chlorogalum pomeridianum var. divaricatum Soap plant, Spreading soaproot, Wavyleaf soap plant

native
Perennial herb

Chlorogalum pomeridianum var. divaricatum

2017 Jessica Woodard

2003 Toni Corelli

2008 Gary A. Monroe

Chlorogalum pomeridianum var. minus Dwarf soaproot, Wavyleaf soap plant

• rare native
Perennial herb (bulb)

1997 Dean Wm. Taylor

2011 Dean Wm. Taylor, Ph.D.

Chlorogalum pomeridianum var. pomeridianum Common soaproot, Wavyleaf soap plant

native
Perennial herb

Chlorogalum pomeridianum var. pomeridianum

2021 Sue Graue

2015 Sharon King & Randy Aeschliman

2018 Karen Scheuermann

Chlorogalum purpureum var. purpureum Purple amole

• rare native
Perennial herb (bulb)

2004 Laura Ann Eliassen

2017 Heather Schneider

2006 Aaron Schusteff

Chlorogalum purpureum var. reductum Camatta canyon amole

• rare native
Perennial herb (bulb)

2011 Jeffrey Hapeman

2013 Chris Winchell

2017 John B. Moule

Chloropyron maritimum Salt marsh bird's beak

native
Annual herb

2018 Ron Vanderhoff

2018 Saskia Raether

2019 Michelle Karle

Chloropyron maritimum ssp. canescens Salt marsh bird's beak

native
Annual herb

2016 Steve Matson

2019 Matt Berger

2016 Steve Matson

Cordylanthus maritimus ssp. canescens Salt marsh bird's beak

native
Annual herb

2016 Steve Matson

2019 Matt Berger

2016 Steve Matson

Chloropyron maritimum ssp. maritimum Salt marsh bird's-beak

• rare native
Annual herb

2018 Ron Vanderhoff

2020 Ron Vanderhoff

2019 Bonnie Nickel

Chloropyron maritimum ssp. palustre Point reyes bird's-beak

• rare native
Annual herb

2018 Saskia Raether

2018 Michael Perlmutter

2018 Saskia Raether

Chloropyron molle ssp. hispidum Hispid bird's-beak

• rare native
Annual herb

2019 David Greenberger

2012 Doug Wirtz

2012 Douglas Wirtz

Chloropyron molle ssp. molle Soft bird's-beak

• rare native
Annual herb

2021 Scott Yarger

2018 Kevin Sherrill

2021 Denise Defreese

Chloropyron palmatum Palmate-bracted bird's-beak

• rare native
Annual herb

2019 David Greenberger

2007 John Game

2003 George W. Hartwell

Cordylanthus palmatus Palmate-bracted bird's-beak

• rare native
Annual herb

2019 David Greenberger

2007 John Game

2003 George W. Hartwell

Chloropyron tecopense Tecopa bird's-beak

• rare native
Annual herb

2015 John Doyen

2011 Duncan S. Bell

Cordylanthus tecopensis Tecopa bird's-beak

• rare native
Annual herb

2015 John Doyen

2011 Duncan S. Bell

Chondrilla juncea Hogbite, Skeleton weed

• invasive non-native
Perennial herb

2021 George Williams

2021 Julia Kosowitz

2021 Bob Sweatt

Ceiba speciosa Silk floss tree

non-native
Tree

BOMBACACEAE

2006 Charles E. Jones

2014 Neal Kramer

2012 Dean Wm. Taylor

Chorisia speciosa Silk floss tree

non-native
Tree

BOMBACACEAE

2006 Charles E. Jones

2014 Neal Kramer

2012 Dean Wm. Taylor

Chorispora tenella Crossflower

• invasive non-native
Annual herb

2022 Bob Sweatt

2019 Caleb Cole

2019 Liz Block

Chorizanthe angustifolia Narrow leaf spineflower, Narrowleaf spineflower

native
Annual herb

2020 David Greenberger

2024 Mike Russler

2020 David Greenberger

Chorizanthe biloba var. biloba Two lobed spineflower, Twolobe spineflower

native
Annual herb

2006 Laura Ann Eliassen

2013 Chris Winchell

Chorizanthe biloba var. immemora San benito spineflower, Twolobe spineflower

• rare native
Annual herb

2022 Mike Russler

Chorizanthe blakleyi Blakley's spineflower

• rare native
Annual herb

2014 Chris Winchel

Donald Myrick1999 California Academy of Sciences

2014 Chris Winchell

Chorizanthe brevicornu Brittle spine flower, Brittle spineflower

native
Annual herb

2022 Steve Matson

2019 Ron Vanderhoff

2022 Steve Matson

Chorizanthe brevicornu var. brevicornu Brittle spineflower

native
Annual herb

2022 Mike Russler

2022 Steve Matson

2022 Mike Russler

Chorizanthe brevicornu var. spathulata Broad leaf brittle spineflower

native
Annual herb

2014 Steve Matson

2022 Steve Matson

Chorizanthe breweri Brewer's spineflower, San luis obispo spineflower

• rare native
Annual herb

2020 David Greenberger

2023 Mike Russler

Chorizanthe corrugata Wrinkled spineflower

native
Annual herb

2020 Steve Matson

2023 Keir Morse

2020 Steve Matson

Chorizanthe cuspidata San francisco spineflower

native
Annual herb

2022 Mike Russler

2022 Cynthia Powell

2022 Mike Russler

Chorizanthe cuspidata var. cuspidata San francisco bay spineflower, San francisco spineflower

• rare native
Annual herb

2021 John Rawlings

2022 Mike Russler

2021 R.A. Chasey

Chorizanthe cuspidata var. villosa San francisco spineflower, Woolly headed spineflower

• rare native
Annual herb

2021 R.A. Chasey

2017 James Gonsman

2021 R.A. Chasey

Chorizanthe diffusa Diffuse spineflower

native
Annual herb

2022 Irene Rosen

2020 David Greenberger

2022 Irene Rosen

Chorizanthe douglasii Douglas's spineflower, San benito spineflower

• rare native
Annual herb

2022 Irene Rosen

2019 David Greenberger

2022 Irene Rosen

Chorizanthe fimbriata Fringed spineflower

native
Annual herb

2019 Matt Berger

2020 Ron Vanderhoff

2019 Ron Vanderhoff

Chorizanthe fimbriata var. fimbriata Fringed spineflower

native
Annual herb

2019 Ron Vanderhoff

2020 Juergen Schrenk

2019 Ron Vanderhoff

Chorizanthe fimbriata var. laciniata Lace fringed spineflower

native
Annual herb

2005 Aaron Schusteff

2014 Keir Morse

Chorizanthe howellii Howell's spineflower, Mendocino spineflower

• rare native
Annual herb

2022 R.A. Chasey

2022 Edy Horwood

2016 Asa B Spade

Chorizanthe leptotheca Peninsular spineflower, Ramona spineflower

• rare native
Annual herb

2021 Aaron Echols

2021 Ron Vanderhoff

Chorizanthe membranacea Pink spineflower

native
Annual herb

2008 Keir Morse

2023 Helen Hancock

Chorizanthe minutiflora Fort ord spineflower

• rare native
Annual herb

2013 Paul Preston

Chorizanthe obovata Spoon sepal spineflower, Spoonsepal spineflower

native
Annual herb

2017 George Butterworth

2017 Adonis (Don) Tate

Chorizanthe orcuttiana Orcutt's spineflower, San diego spineflower

• rare native
Annual herb

2015 David Varner

2015 Keir Morse

2009 Michelle Cloud-Hughes

Chorizanthe palmeri Palmer's spineflower

• rare native
Annual herb

2019 David Greenberger

2012 Terrence Gosliner

2023 Mike Russler

Chorizanthe parryi var. fernandina San fernando valley spineflower

• rare native
Annual herb

2008 Anuja Parikh and Nathan Gale

2001 Kevin Merk

2015 Anuja Parikh and Nathan Gale

Chorizanthe parryi var. parryi Parry's spineflower, San bernardino spineflower

• rare native
Annual herb

2020 Aaron Echols

2012 Keir Morse

2020 Aaron Echols

Chorizanthe polygonoides Knotweed spineflower

native
Annual herb

2017 R.A. Chasey

2018 David popp

2023 Aaron Echols

Chorizanthe polygonoides var. longispina Knotweed spineflower, Long spined spineflower

• rare native
Annual herb

Chorizanthe polygonoides var. longispina

2023 Aaron Echols

Chorizanthe polygonoides var. polygonoides Knotweed spineflower

native
Annual herb

Chorizanthe polygonoides var. polygonoides

2024 Jordan Collins

2023 R.A. Chasey

Chorizanthe procumbens Prostrate spineflower

native
Annual herb

2019 Diane Etchison

2023 Ron Vanderhoff

Chorizanthe pungens Monterey spineflower

native
Annual herb

2020 Cara Wilcox

2018 Evaristo Alvarez

Chorizanthe pungens var. hartwegiana Ben lomond spineflower, Hartweg's spineflower

• rare native
Annual herb

2018 Cara Wilcox

2020 Cara Wilcox

Chorizanthe pungens var. pungens Monterey spineflower

• rare native
Annual herb

2019 Gena Bentall

2022 R.A. Chasey

Chorizanthe rectispina Prickly spineflower, Straight awned spineflower

• rare native
Annual herb

1982 California Native Plant Society

2013 Chris Winchell

2023 Ryan O'Dell

Chorizanthe rigida Devil's spineflower, Rigid spiny herb

native
Annual herb

2011 Steve Matson

2022 Steve Matson

2017 Keir Morse

Chorizanthe robusta var. hartwegii Robust spineflower, Scott's valley spineflower

• rare native
Annual herb

2023 Steven Mills Glascock

2022 Steven Mills Glascock

Chorizanthe robusta var. robusta Robust spineflower

• rare native
Annual herb

2020 Ryan Carle

Chorizanthe spinosa Mojave spineflower

• rare native
Annual herb

2019 Matt Berger

Chorizanthe staticoides Turkish rugging

native
Annual herb

2019 Ron Vanderhoff

2019 Bryant Baker

2019 Ron Vanderhoff

Chorizanthe stellulata Starlet spineflower

native
Annual herb

2020 Terrence Gosliner

Chorizanthe uniaristata One awn spineflower, Oneawn spineflower

native
Annual herb

2022 Mike Russler

Chorizanthe valida Sonoma spineflower

• rare native
Annual herb

2017 David Greenberger

2019 Scott Yarger

Chorizanthe ventricosa Priest valley spineflower

• rare native
Annual herb

2014 Neal Kramer

2023 Ryan O'Dell

2014 Neal Kramer

Chorizanthe watsonii Fivetooth spineflower, Watson's spineflower

native
Annual herb

2020 Steve Matson

2022 Steve Matson

Chorizanthe wheeleri Santa barbara spineflower, Wheeler's spineflower

• rare native
Annual herb

2020 Sean Carson

2003 Keir Morse

Chorizanthe xanti var. leucotheca Riverside spineflower, White bracted spineflower

• rare native
Annual herb

2021 Aaron Echols

2021 Kim Schaefer

2021 Aaron Echols

Chorizanthe xanti var. xanti Riverside spineflower, Xantus' spineflower

native
Annual herb

2021 Mike Russler

2020 Mike Russler

2021 Mike Russler

Chrysanthemoides monilifera

non-native

2018 Josie Bennett

2018 Ron Vanderhoff

2020 Ron Vanderhoff

Chrysanthemoides monilifera ssp. monilifera boneseed

• invasive non-native

Chrysanthemoides monilifera ssp. monilifera

2022 Ron Vanderhoff

2018 Ron Vanderhoff

2022 Ron Vanderhoff

Chrysolepis chrysophylla Giant chinquapin, Golden chinquapin

native
Tree, Shrub

2020 Mary Conway

2021 Hunter Breck

2022 Jamie Spielmann

Castanopsis chrysophylla Giant chinquapin, Golden chinquapin

native
Tree, Shrub

2019 Patrick Furtado

2014 Richard Chasey

Chrysolepis chrysophylla var. chrysophylla Giant chinquapin, Golden chinquapin

native
Tree, Shrub

Chrysolepis chrysophylla var. chrysophylla

2019 Patrick Furtado

2014 Richard Chasey

Chrysolepis chrysophylla var. minor Bush chinquapin, Giant chinquapin

native
Tree, Shrub

2020 R.A. Chasey

2019 Ken Hickman

2009 Neal Kramer

Castanopsis sempervirens Bush chinquapin, Sierra chinquapin

native
Shrub

2023 Richard McNeill

2021 Arlee Montalvo

2016 Diane Etchison

Chrysolepis sempervirens Bush chinquapin, Sierra chinquapin

native
Shrub

2023 Richard McNeill

2021 Arlee Montalvo

2016 Diane Etchison

Chrysosplenium glechomifolium Pacific golden saxifrage

• rare native
Perennial herb

2013 James Gonsman

2021 Dillon Doss

2014 Dana York

Chrysothamnus depressus Long flowered rabbitbrush, Longflower rabbitbrush

native
Shrub

2010 Teague Embrey

2015 Richard Spellenberg

Chrysothamnus greenei Greene's rabbitbrush

• rare native
Shrub

2012 Lynn Robertson

2009 James M. Andre

Chrysothamnus humilis Truckee rabbitbrush

native
Shrub

1998 James B. Gratiot

2000 James B. Gratiot

Chrysothamnus viscidiflorus Green rabbitbrush, Stickyleaf rabbitbrush, Yellow rabbitbrush

native
Shrub

2022 Steve Matson

2020 Cynthia Powell

Chrysothamnus viscidiflorus ssp.viscidiflorus 1 Green rabbitbrush, Stickyleaf rabbitbrush, Yellow rabbitbrush

native
Shrub

Chrysothamnus viscidiflorus ssp.viscidiflorus 1

2022 Steve Matson

2020 Cynthia Powell

Chrysothamnus viscidiflorus ssp. lanceolatus Sticky leaved rabbitbrush, Yellow rabbitbrush

native
Shrub

Chrysothamnus viscidiflorus ssp. lanceolatus

2014 Richard Spellenberg

Chrysothamnus viscidiflorus ssp. puberulus Sticky leaved rabbitbrush, Yellow rabbitbrush

native
Shrub

Chrysothamnus viscidiflorus ssp. puberulus

2022 Steve Matson

2013 Steve Matson

Chrysothamnus viscidiflorus ssp. viscidiflorus Sticky leaved rabbitbrush, Yellow rabbitbrush

native
Shrub

Chrysothamnus viscidiflorus ssp. viscidiflorus

2004 Steve Matson

2020 BLM Redding Field Office

Chrysothamnus viscidiflorus var. viscidiflorus Sticky leaved rabbitbrush, Yellow rabbitbrush

native
Shrub

Chrysothamnus viscidiflorus var. viscidiflorus

2004 Steve Matson

2020 BLM Redding Field Office

Chylismia arenaria Sand evening-primrose

• rare native
Annual, Perennial herb

2012 Keir Morse

Camissonia brevipes Yellow cups

native
Annual, Perennial herb

2016 Steve Matson

Camissonia brevipes ssp. brevipes Yellow cups

native
Annual, Perennial herb

2016 Steve Matson

Chylismia brevipes Yellow cups

native
Annual, Perennial herb

2016 Steve Matson

Chylismia brevipes ssp. brevipes Golden suncup

native
Annual, Perennial herb

2016 Steve Matson

Chylismia brevipes ssp. pallidula Pale sun cup

native
Annual, Perennial herb

2016 James Gonsman

2016 Brian Bielfelt

2016 James Gonsman

Camissonia cardiophylla ssp. cardiophylla Heart leaved primrose

native
Annual, Perennial herb

Camissonia cardiophylla ssp. cardiophylla

2019 Matt Berger

2020 Matt Berger

2008 Richard Zmasek

Chylismia cardiophylla Heart leaved primrose

native
Annual, Perennial herb

2019 Matt Berger

2020 Matt Berger

2008 Richard Zmasek

Chylismia cardiophylla ssp. cardiophylla Heart leaved primrose

native
Annual, Perennial herb

Chylismia cardiophylla ssp. cardiophylla

2019 Matt Berger

2018 Michelle Tollett

2019 Matt Berger

Camissonia cardiophylla ssp. robusta Big heartleaf sun cup

native
Annual, Perennial herb

2020 Ashley Olive

2015 Barry Breckling

Chylismia cardiophylla ssp. robusta Big heartleaf sun cup

native
Annual, Perennial herb

2020 Ashley Olive

2015 Barry Breckling

Chylismia claviformis Clavate fruited primrose

native
Annual, Perennial herb

2022 Steve Matson

2016 Steve Matson

Chylismia claviformis ssp. aurantiacus Clavate fruited primrose

native
Annual, Perennial herb

2022 Steve Matson

2016 Steve Matson

Chylismia claviformis ssp. piersonii Clavate fruited primrose

native
Annual, Perennial herb

2022 Steve Matson

2016 Steve Matson

Chylismia claviformis ssp. aurantiaca Pinnate leaved primrose

native
Annual, Perennial herb

2019 Matt Berger

2023 Keir Morse

2022 Mike Russler

Camissonia claviformis ssp. claviformis Browneyes

native
Annual, Perennial herb

2022 Steve Matson

Chylismia claviformis ssp. claviformis Browneyes

native
Annual, Perennial herb

2022 Steve Matson

Chylismia claviformis ssp. cruciformis Cruciform evening-primrose

• rare native
Annual, Perennial herb

2003 Yulan Tong

2010 Bill Harnach

Camissonia claviformis ssp. funerea Clavate fruited primrose

native
Annual, Perennial herb

2016 Steve Matson

Chylismia claviformis ssp. funerea Clavate fruited primrose

native
Annual, Perennial herb

2016 Steve Matson

Camissonia claviformis Clavate fruited primrose

native
Annual, Perennial herb

2020 Steve Matson

Camissonia claviformis ssp. integrior Clavate fruited primrose

native
Annual, Perennial herb

2020 Steve Matson

Camissonia claviformis ssp. piersonii Clavate fruited primrose

native
Annual, Perennial herb

2020 Steve Matson

Chylismia claviformis ssp. integrior Clavate fruited primrose

native
Annual, Perennial herb

2020 Steve Matson

Chylismia claviformis ssp. lancifolia Clavate fruited primrose

native
Annual, Perennial herb

2022 Steve Matson

2011 Steve Matson

Chylismia claviformis ssp. peirsonii Peirson's clavate fruited primrose

native
Annual, Perennial herb

2010 Steve Matson

Chylismia heterochroma Shockley's evening-primrose

native
Annual, Perennial herb

2019 Matt Berger

2022 Dana York

2019 Steve Matson

Camissonia walkeri Walker's suncup

native
Annual, Perennial herb

2008 Steve Matson

2015 Steve Matson

Chylismia walkeri ssp. tortilis Walker's sun cup

native
Annual, Perennial herb

2008 Steve Matson

2015 Steve Matson

Camissonia pterosperma Wing fruit sun cup

native

2019 Steve Matson

2019 Matt Berger

Chylismiella pterosperma Wing fruit sun cup

native

2019 Steve Matson

2019 Matt Berger

Cibotium menziesii Hapu'u li

non-native

DICKSONIACEAE

Cicendia quadrangularis Common microcalis, Oregon timwort

native
Annual herb

2008 Steve Matson

2022 Charles Russell

2023 Bill Kress

Cicer arietinum Chick pea

non-native
Perennial herb

2006 Luigi Rignanese

2007 Luigi Rignanese

2008 Louis-M. Landry

Cichorium intybus Chicory

non-native
Perennial herb

2020 Bob Sweatt

2022 David Strauch

2019 Diane Etchison

Cicuta douglasii Western water hemlock

native
Perennial herb

2015 Bob Case

2020 Julie A. Kierstead

2021 R.A. Chasey

Cicuta maculata Water hemlock

native
Perennial herb

2019 Friends of Five Creeks volunteers

2022 Morgan Stickrod

Cicuta maculata var. angustifolia Narrow leafed water hemlock, Spotted water hemlock

native
Perennial herb

2013 Steve Matson

Cicuta maculata var. bolanderi Saltmarsh water hemlock, Spotted water hemlock

• rare native
Perennial herb

2013 Steve Matson

2022 Morgan Stickrod

Cinna bolanderi Bolander's woodreed

• rare native
Perennial grass

2021 Jacob Smith

2023 Jacob Smith

Cinna latifolia Drooping wood reed, Wood reedgrass

native
Perennial grass

2020 Susan McDougall

2022 Jacob Smith

2004 Steve Matson

Cinnamomum camphora Camphortree

non-native
Tree

2020 Jennifer Mo

2018 Ron Vanderhoff

2023 Ron Vanderhoff

Circaea alpina Small enchanter's nightshade

native
Perennial herb

2003 Steve Matson

Circaea alpina ssp. alpina Small enchanter's nightshade

native
Perennial herb

2003 Steve Matson

Circaea alpina ssp. pacifica Pacific enchanter's nightshade, Small enchanter's nightshade

native
Perennial herb

2003 Steve Matson

Cirsium andersonii Anderson's thistle, Rose thistle

native
Perennial herb

2019 Bob Sweatt

2023 Mike Russler

2019 R.A. Chasey

Cirsium andrewsii Franciscan thistle

• rare native
Perennial herb

2011 Scott Cox

2011 Thomas Reyes

2013 Robert Sikora

Cirsium arizonicum Arizona thistle

native
Perennial herb

2016 Steve Matson

2020 David Greenberger

2016 Steve Matson

Cirsium arizonicum var. bipinnatum Arizona thistle

native
Perennial herb

2016 Steve Matson

2020 David Greenberger

2016 Steve Matson

Cirsium eatonii Arizona thistle

native
Perennial herb

2016 Steve Matson

2020 David Greenberger

2016 Steve Matson

Cirsium tweedyi Arizona thistle

native
Perennial herb

2016 Steve Matson

2020 David Greenberger

2016 Steve Matson

Cirsium arizonicum var. arizonicum Arizona thistle

native
Perennial herb

2016 Steve Matson

Cirsium arizonicum var. tenuisectum Desert mountain thistle

• rare native
Perennial herb

2020 David Greenberger

2009 James M. Andre

2004 James M. Andre

Cirsium arvense Canada thistle

• invasive non-native
Perennial herb

2012 Michael Mitchell

2022 Donald Burk

Cirsium arvense var. arvense Canada thistle

• invasive non-native
Perennial herb

2012 Michael Mitchell

2022 Donald Burk

Cirsium arvense var. incanum Canada thistle

• invasive non-native
Perennial herb

2012 Michael Mitchell

2022 Donald Burk

Cirsium brevistylum Clustered thistle, Indian thistle

native
Perennial herb

2019 Steve Davison

2018 Brian Charles

2019 Aleksandra Evert

Cirsium canescens Prairie thistle

non-native
Perennial herb

2010 Lee Dittmann

2008 Zoya Akulova

Cirsium cymosum Peregrine thistle

native
Perennial herb

2008 Steve Matson

Cirsium canovirens Gray-green thistle

native
Perennial herb

2006 Steve Matson

Cirsium cymosum var. canovirens Gray-green thistle

native
Perennial herb

2006 Steve Matson

Cirsium cymosum var. cymosum Peregrine thistle

native
Perennial herb

2008 Steve Matson

2006 Steve Matson

Cirsium douglasii Douglas' thistle, Swamp thistle

native
Perennial herb

2014 Steve Matson

Cirsium douglasii var. breweri Brewer's swamp thistle, Douglas' thistle

native
Perennial herb

2014 Steve Matson

Cirsium douglasii var. douglasii Douglas' swamp thistle, Douglas' thistle

native
Perennial herb

2011 Neal Kramer

2023 R.A. Chasey

Cirsium edule Edible thistle

non-native
Perennial herb

Cirsium fontinale Fountain thistle

native
Perennial herb

2020 R.A. Chasey

2020 David Greenberger

2023 William Lundgren

Cirsium fontinale var. campylon Mt hamilton thistle, Mt. hamilton thistle

• rare native
Perennial herb

2019 David Greenberger

2020 David Greenberger

2020 R.A. Chasey

Cirsium fontinale var. fontinale Fountain thistle

• rare native
Perennial herb

2004 Toni Corelli

2021 Ambrose Cruz

Cirsium fontinale var. obispoense Chorro creek bog thistle

• rare native
Perennial herb

2017 Cindy Roessler

2015 David Wolfson

2020 David Greenberger

Cirsium hydrophilum ssp. vaseyi Suisun thistle

native
Perennial herb

2018 Eliezer Margolis

2022 Morgan Stickrod

Cirsium hydrophilum var. hydrophylum Suisun thistle

native
Perennial herb

2018 Eliezer Margolis

2022 Morgan Stickrod

Cirsium hydrophilum var. hydrophilum Suisun thistle

• rare native
Perennial herb

2022 Morgan Stickrod

Cirsium hydrophilum var. vaseyi Mt. Tamalpais thistle, Vasey's thistle

• rare native
Perennial herb

2018 Eliezer Margolis

2021 Rowena Forest

2019 Chasey

Cirsium inamoenum Greene's thistle

native
Perennial herb

2022 Bob Sweatt

2020 Bob Sweatt

2022 Bob Sweatt

Cirsium inamoenum var. inamoenum Greene's thistle

native
Perennial herb

2019 Bob Sweatt

2020 Bob Sweatt

Cirsium subniveum Greene's thistle

native
Perennial herb

2019 Bob Sweatt

2020 Bob Sweatt

Cirsium japonicum Japanese thistle

non-native
Perennial herb

Cirsium mohavense Mohave thistle, Mojave thistle

native
Perennial herb

2009 Steve Matson

2016 Steve Matson

Cirsium virginense Mohave thistle, Mojave thistle

native
Perennial herb

2009 Steve Matson

2016 Steve Matson

Cirsium neomexicanum Desert thistle, New mexico thistle

native
Perennial herb

2023 Dana York

Geoff Burleigh

Cirsium occidentale Cobweb thistle, Western thistle

native
Perennial herb

2011 Steve Matson

Cirsium californicum Bigelow thistle, California thistle, Cobwebby thistle

native
Perennial herb

2021 Amber Bedgood

2021 Mike Russler

2013 James Gonsman

Cirsium occidentale var. californicum Bigelow thistle, California thistle, Cobwebby thistle

native
Perennial herb

2021 Amber Bedgood

2021 Mike Russler

2013 James Gonsman

Cirsium occidentale var. candidissimum Snowy thistle

native
Perennial herb

2021 Mary Conway

2018 Debra Valov

Cirsium pastoris Snowy thistle

native
Perennial herb

2021 Mary Conway

2018 Debra Valov

Cirsium occidentale var. compactum Compact cobwebby thistle

• rare native
Perennial herb

2019 Marisa Persaud

2016 Talila Golan

2012 John Sayers

Cirsium occidentale var. lucianum Cuesta ridge thistle

• rare native
Perennial herb

2019 David Greenberger

2021 David Krause

Cirsium occidentale var. occidentale Cobweb thistle, Cobwebby thistle

native
Perennial herb

2022 Suzanne L. Weakley

2020 Coty Sifuentes-Winter

2019 Randy Huey

Cirsium occidentale var. venustum Cobwebby thistle, Red thistle, Venus thistle

native
Perennial herb

2011 Steve Matson

Cirsium ochrocentrum Beaumont thistle, Yellow spined thistle

• invasive non-native
Perennial herb

2018 Cynthia Powell

2018 Stephen Pfeiler

Cirsium ochrocentrum var. martinii Beaumont thistle, Yellow spined thistle

• invasive non-native
Perennial herb

2018 Cynthia Powell

2018 Stephen Pfeiler

Cirsium ochrocentrum var. ochrocentrum Yellowspine thistle

non-native
Perennial herb

2016 Wynn Anderson

Cirsium quercetorum Alameda county thistle, Brownie thistle

native
Annual, Perennial herb

2023 R.A. Chasey

2022 Hunter Breck

2013 James Gonsman

Cirsium remotifolium Few leaved thistle, Fewleaf thistle

native
Perennial herb

2008 Gerald Carr

2011 Gerald Carr

2017 Hunter Breck

Cirsium remotifolium var. odontolepis Pacific fringed thistle

native
Perennial herb

2008 Gerald Carr

2022 Robert Steers

2020 MCOSD EDRR

Cirsium remotifolium var. remotifolium Remote-leaved thistle

native
Perennial herb

2008 Keir Morse

Cirsium rhothophilum Surf thistle

• rare native
Perennial herb

2023 Morgan Stickrod

Cirsium drummondii Dwarf thistle, Elk thistle

native
Perennial herb

2020 Bob Sweatt

2022 Melissa Harbert

2023 Ryan O'Dell

Cirsium scariosum Dwarf thistle, Elk thistle

native
Perennial herb

2020 Bob Sweatt

2022 Melissa Harbert

2023 Ryan O'Dell

Cirsium scariosum var. coloradense Dwarf thistle, Elk thistle

native
Perennial herb

2020 Bob Sweatt

2022 Melissa Harbert

2023 Ryan O'Dell

Cirsium scariosum var. thorneae Dwarf thistle, Elk thistle

native
Perennial herb

2020 Bob Sweatt

2022 Melissa Harbert

2023 Ryan O'Dell

Cirsium scariosum var. americanum Dinnerplate thistle

native
Perennial herb

2020 Bob Sweatt

2004 Steve Matson

2022 Steve Matson

Cirsium scariosum var. congdonii Elk thistle

native
Perennial herb

2015 Steve Matson

Cirsium loncholepis La graciosa thistle

• rare native
Perennial herb

2011 Chris Winchell

2012 Anuja Parikh and Nathan Gale

2011 Chris Winchell

Cirsium scariosum var. loncholepis La graciosa thistle

• rare native
Perennial herb

2011 Chris Winchell

2012 Anuja Parikh and Nathan Gale

2011 Chris Winchell

Cirsium scariosum var. robustum Elk thistle

native
Perennial herb

2014 Steve Matson

Cirsium scariosum var. scariosum Elk thistle

native
Perennial herb

2011 Louis-M. Landry

2017 Barry Rice

2016 Richard Spellenberg

Cirsium undulatum Wavy leaved thistle, Wavyleaf thistle

non-native
Perennial herb

2020 Chris McDonald

2015 Richard Spellenberg

Cirsium undulatum var. tracyi Wavy leaved thistle, Wavyleaf thistle

non-native
Perennial herb

2020 Chris McDonald

2015 Richard Spellenberg

Cirsium vulgare Bull thistle

• invasive non-native
Perennial herb

2017 James Bailey

2020 Bob Sweatt

Cistanthe ambigua Desert cistanthe , Desert Pussypaws

native
Annual herb

2019 Matt Berger

2020 David Greenberger

2015 Deborah Dozier

Calandrinia maritima Seaside calandrinia

• rare native
Annual herb

2019 Ron Vanderhoff

Cistanthe maritima Seaside calandrinia

• rare native
Annual herb

2019 Ron Vanderhoff

Cistus creticus Hairy rockrose

non-native
Shrub

2020 Karen Swift

2023 Ron Vanderhoff

2018 Julian Geoghegan

Cistus incanus Hairy rockrose

non-native
Shrub

2020 Karen Swift

2023 Ron Vanderhoff

2018 Julian Geoghegan

Cistus ladanifer Gum rockrose, Resinous rockrose

• invasive non-native
Shrub (stem succulent)

2021 Emily Sluiman

2023 Keir Morse

Cistus monspeliensis Montpelier cistus, Resinous rockrose

non-native
Shrub (stem succulent)

2010 Zoya Akulova

Cistus psilosepalus Rock rose

non-native
Shrub

2020 susan campo

2018 Zoya Akulova

Cistus salviifolius Sage leaf rockrose, Salvia cistus

non-native
Shrub (stem succulent)

2019 Julian Geoghegan

2018 Paul Excoffier

2017 Ron Vanderhoff

Citrullus colocynthis Colocynth

non-native
Annual herb

2009 Stefano Doglio

2015 Barry Breckling

Citrullus lanatus var. citroides Watermelon

non-native
Annual herb

2022 Adonis Tate

2019 Ramona Robison

Citrullus colocynthis var. lanatus Watermelon

non-native
Annual herb

2018 Ron Vanderhoff

Cladium californicum California sawgrass, Saw grass

• rare native
Perennial grasslike herb

2024 richard mcneill

2018 Matt Berger

Claopodium whippleanum Whipple's claopodium moss

non-native
Moss

LESKEACEAE

2021 Diana Wahl

Clarkia affinis Chaparral clarkia, Chaparral fairyfan

native
Annual herb

2019 David Greenberger

2019 Ken Hickman

2020 Steve Laymon

Clarkia amoena Farewell to spring

native
Annual herb

2018 Anna Sereno

2019 Steve Conger

2020 Steve Laymon

Clarkia amoena ssp. lindleyi Farewell to spring

native
Annual herb

2018 Anna Sereno

2019 Steve Conger

2020 Steve Laymon

Clarkia amoena ssp. amoena Farewell to spring

native
Annual herb

2020 Steve Laymon

2014 Richard Chasey

Clarkia amoena ssp. huntiana Farewell to spring

native
Annual herb

2019 Steve Laymon

2020 Steve Laymon

Clarkia amoena ssp. whitneyi Farewell to spring, Whitney's clarkia

• rare native
Annual herb

2022 Asa B Spade

2018 Asa B Spade

2022 Asa B Spade

Clarkia arcuata Glandular clarkia, Glandular fairyfan

native
Annual herb

2020 Steve Laymon

2021 Donald Burk

2022 Mike Russler

Clarkia australis Small's southern clarkia

• rare native
Annual herb

2021 R.A. Chasey

1986 Dean Wm. Taylor

Clarkia biloba Two lobed clarkia, Twolobe clarkia

native
Annual herb

2020 Steve Laymon

2019 Alison Sheehey

2020 Karen Swift

Clarkia biloba ssp. australis Mariposa clarkia

• rare native
Annual herb

2020 Steve Laymon

2020 Mike Russler

Clarkia biloba ssp. biloba Two lobed clarkia, Twolobe clarkia

native
Annual herb

2019 David Greenberger

2020 Steve Laymon

2022 Cynthia Powell

Clarkia biloba ssp. brandegeeae Brandegee's clarkia

• rare native
Annual herb

2020 Steve Laymon

2019 Matt Berger

Clarkia borealis Northern clarkia

native
Annual herb

2020 Steve Laymon

2019 Steve Laymon

2018 Matt Berger

Clarkia borealis ssp. borealis Northern clarkia

• rare native
Annual herb

2020 Steve Laymon

2019 Steve Laymon

Clarkia bottae Botta's clarkia, Punch bowl godetia

native
Annual herb

2023 Ron Vanderhoff

2020 Steve Laymon

Clarkia breweri Brewer's clarkia, Fairy fans

• rare native
Annual herb

2019 David Greenberger

2018 Elinor Gates

2019 Joey Santore

Clarkia concinna Red ribbons

native
Annual herb

2023 Bill Kress

2023 R.A. Chasey

2018 Hayley Ross

Clarkia concinna ssp. automixa Santa clara red ribbons

• rare native
Annual herb

2020 Steve Laymon

2018 Elinor Gates

2022 Helen Hancock

Clarkia concinna ssp. concinna Red ribbons

native
Annual herb

2020 Joaquin Hale

2021 Dana York

2019 Steve Laymon

Clarkia concinna ssp. raichei Raiche's clarkia, Raiche's red ribbons

• rare native
Annual herb

2018 Steve Laymon

2015 James Gonsman

Clarkia cylindrica Speckled clarkia

native
Annual herb

2014 Steve Matson

Clarkia cylindrica ssp. clavicarpa Speckled clarkia

native
Annual herb

2014 Steve Matson

Clarkia cylindrica ssp. cylindrica Speckled clarkia

native
Annual herb

2019 David Greenberger

2019 Bryant Baker

2020 Steve Laymon

Clarkia davyi Davy's clarkia

native
Annual herb

2021 Suzanne L. Weakley

2022 Cynthia Powell

2020 Steve Laymon

Clarkia delicata Campo clarkia, Delicate clarkia

• rare native
Annual herb

2020 Steve Laymon

2019 Matt Berger

2012 Cynthia Keiser

Clarkia dudleyana Dudley's clarkia

native
Annual herb

2018 Steve Matson

Clarkia epilobioides Canyon clarkia, Willow herb clarkia

native
Annual herb

2017 Steve Matson

Clarkia exilis Kern river clarkia, Slender clarkia

• rare native
Annual herb

2020 Steve Laymon

2018 Tim Miller

1995 Saint Mary's College of California

Clarkia franciscana Presidio clarkia

• rare native
Annual herb

2020 Steve Laymon

2017 Lech N

2020 Mike Russler

Clarkia gracilis Clarkia, Farewell to spring, Graceful clarkia

native
Annual herb

2020 Steve Laymon

2020 Julie A. Kierstead

2008 Keir Morse

Clarkia gracilis ssp. albicaulis White stemmed clarkia, Whitestem clarkia

• rare native
Annual herb

2019 Steve Laymon

2020 Steve Laymon

2019 Steve Laymon

Clarkia gracilis ssp. gracilis Graceful clarkia, Slender clarkia

native
Annual herb

2021 Steve Laymon

2023 Larry Dizmang

2020 Steve Laymon

Clarkia gracilis ssp. sonomensis Sonoma clarkia

native
Annual herb

2020 Steve Laymon

2020 Hunter Breck

Clarkia gracilis ssp. tracyi Tracy's clarkia

• rare native
Annual herb

2019 Steve Laymon

2018 Steve Laymon

2019 Steve Laymon

Clarkia heterandra California gaura, Heterogaura, Mountain clarkia

native
Annual herb

2018 Steve Matson

2018 Steve Laymon

2018 Steve Matson

Clarkia imbricata Vine hill clarkia

• rare native
Annual herb

2018 Steve Laymon

Clarkia jolonensis Jolon clarkia

• rare native
Annual herb

2020 Steve Laymon

Clarkia lassenensis Lassen clarkia, Lassen godetia

native
Annual herb

2006 Steve Matson

Clarkia lewisii Lewis' clarkia

• rare native
Annual herb

2022 Irene Rosen

2020 Steve Laymon

2022 Irene Rosen

Clarkia lingulata Merced clarkia

• rare native
Annual herb

2020 Mike Russler

2016 Cynthia Powell

2020 Mike Russler

Clarkia mildrediae Clarkia, Mildred's clarkia

native
Annual herb

2020 Steve Laymon

2021 Cheryl Ballantyne

Clarkia mildrediae ssp. lutescens Mildred's clarkia

• rare native
Annual herb

2020 Steve Laymon

Clarkia mildrediae ssp. mildrediae Mildred's clarkia

• rare native
Annual herb

2019 Matt Berger

2017 David popp

2021 David popp

Clarkia modesta Waltham Creek clarkia

native
Annual herb

2020 David Greenberger

2020 Steve Laymon

2019 Steve Laymon

Clarkia mosquinii Mosquin's clarkia

• rare native
Annual herb

2020 Steve Laymon

Clarkia prostrata Prostrate clarkia

native
Annual herb

2012 Lynn Robertson

2013 David Wolfson

2012 Lynn Robertson

Clarkia purpurea Purple clarkia, Winecup clarkia

native
Annual herb

2022 Ron Vanderhoff

2019 Stacie Wolny

2021 Mary Conway

Clarkia purpurea ssp. purpurea Purple clarkia, Winecup clarkia

native
Annual herb

2020 R.A. Chasey

2018 Steve Laymon

2020 R.A. Chasey

Clarkia purpurea ssp. quadrivulnera Four-spot, Purple clarkia, Purple godetia

native
Annual herb

2014 Steve Matson

2019 Joe Engelbrecht

2021 R.A. Chasey

Clarkia quadrivulnera Four-spot, Purple clarkia, Purple godetia

native
Annual herb

2014 Steve Matson

2019 Joe Engelbrecht

2021 R.A. Chasey

Clarkia purpurea ssp. viminea Large godetia, Purple clarkia, Winecup clarkia

native
Annual herb

2020 Steve Laymon

Clarkia rhomboidea Diamond clarkia, Diamond petaled clarkia, Diamond fairyfan

native
Annual herb

2016 Steve Matson

2008 Steve Matson

Clarkia rostrata Beaked clarkia

• rare native
Annual herb

2018 Steve Laymon

Clarkia rubicunda Farewell to spring, Reddened clarkia, Ruby chalice clarkia

native
Annual herb

2019 Stacie Wolny

2021 John Game

2019 Stacie Wolny

Clarkia similis Ramona clarkia

native
Annual herb

2019 Ron Vanderhoff

Clarkia speciosa Red spotted clarkia, Redspot clarkia

native
Annual herb

2020 Patricia Ashe

2017 Alison Sheehey

2019 Steve Laymon

Clarkia speciosa ssp. immaculata Pismo clarkia

• rare native
Annual herb

2020 Steve Laymon

Clarkia speciosa ssp. polyantha Red spot clarkia, Redspot clarkia

native
Annual herb

2014 Steve Matson

2020 Steve Laymon

2014 Steve Matson

Clarkia speciosa ssp. speciosa Red spot clarkia, Redspot clarkia

native
Annual herb

2019 Steve Laymon

2003 Keir Morse

2020 Steve Laymon

Clarkia springvillensis Springville clarkia

• rare native
Annual herb

2020 Steve Laymon

2017 Douglas Gordon-Blackwood

2015 Mary Merriman

Clarkia stellata Lake almanor clarkia

native
Annual herb

2021 Steve Laymon

2018 Steve Laymon

Clarkia tembloriensis ssp. calientensis Vasek's clarkia

• rare native
Annual herb

2011 Neal Kramer

2006 Dean Wm. Taylor

2011 Neal Kramer

Clarkia tembloriensis ssp. tembloriensis Temblor range clarkia

native
Annual herb

Clarkia tembloriensis ssp. tembloriensis

2022 Mike Russler

2020 John Game

2019 Steve Laymon

Clarkia elegans Elegant clarkia, Mountain garland, Woodland clarkia

native
Annual herb

2019 David Greenberger

2019 Bryant Baker

2021 Mike Russler

Clarkia unguiculata Elegant clarkia, Mountain garland, Woodland clarkia

native
Annual herb

2019 David Greenberger

2019 Bryant Baker

2021 Mike Russler

Clarkia virgata Sierra clarkia

• rare native
Annual herb

2020 Steve Laymon

2019 David Greenberger

Clarkia williamsonii Fort Miller clarkia, Fort Miller fairyfan

native
Annual herb

2019 Alison Sheehey

2020 Shane Hanofee

2019 Alison Sheehey

Clarkia xantiana Gunsight clarkia, Xantus' clarkia

native
Annual herb

2019 Steve Laymon

2023 Mike Russler

2020 Jacob Smith

Clarkia xantiana ssp. parviflora Kern canyon clarkia

• rare native
Annual herb

2018 Steve Laymon

2019 Matt Berger

Clarkia xantiana ssp. xantiana Gunsight clarkia, Xantus' clarkia

native
Annual herb

2020 Steve Laymon

2014 Steve Matson

2020 Jacob Smith

Claytonia cordifolia Heart leaf spring beauty, Heartleaf springbeauty

native
Perennial herb

2021 Dana York

Claytonia exigua Little spring beauty, Serpentine springbeauty

native
Annual herb

2019 Matt Berger

2022 BOB CASE

2022 Mike Russler

Claytonia exigua ssp. exigua Little spring beauty, Serpentine springbeauty, Viridis

native
Annual herb

2019 Steve Matson

Claytonia exigua ssp. glauca Blue leaved spring beauty, Serpentine springbeauty

native
Annual herb

2022 Diana Wahl

2008 Keir Morse

2007 Keir Morse

Claytonia gypsophiloides Gypsum spring beauty, Gypsum springbeauty

native
Annual herb

2021 Miao Ling He

2019 William Lundgren

2023 R.A. Chasey

Claytonia lanceolata Lanceleaf springbeauty, Western spring beauty, Western springbeauty

native
Perennial herb

2010 Steve Matson

2015 Jenny Gossett

Claytonia lanceolata var. lanceolata Lanceleaf springbeauty, Western spring beauty, Western springbeauty

native
Perennial herb

2010 Steve Matson

2015 Jenny Gossett

Claytonia megarhiza Alpine springbeauty, Fell fields claytonia

• rare native
Perennial herb

2022 John Rawlings

2009 Ron Wolf

2022 Richard Sullivan

Claytonia nevadensis Sierra spring beauty, Sierra springbeauty

native
Perennial herb

2022 Dana York

2020 Bob Sweatt

Claytonia palustris Jonesville springbeauty, Marsh claytonia

• rare native
Perennial herb

2019 Matt Berger

Claytonia parviflora Miner's lettuce, Narrow leaved miner's lettuce, Streambank springbeauty

native
Annual herb

2017 Gary McDonald

2023 Sue Luft

Claytonia parviflora ssp. grandiflora Large flowered miner's lettuce, Streambank springbeauty

• rare native
Annual herb

2023 Matt Berger

2021 Jacob Smith

2023 Matt Berger

Claytonia parviflora ssp. parviflora Narrow leaved miner's lettuce, Streambank springbeauty, Utah miner s lettuce

native
Annual herb

2022 Ron Vanderhoff

2017 Gary McDonald

Claytonia parviflora ssp. utahensis Streambank springbeauty

native
Annual herb

2018 Mary Merriman

2014 Steve Matson

2010 Steve Matson

Claytonia parviflora ssp. viridis Green miner's lettuce, Streambank springbeauty

native
Annual herb

2006 James M. Andre

2024 Bob Steele

Claytonia perfoliata Miners lettuce, Miner's lettuce, Rooreh (Ohlone)

native
Annual herb

2008 Steve Matson

2019 Gary McDonald

2020 Ron Vanderhoff

Claytonia perfoliata ssp. mexicana Southern miner's lettuce

native
Annual herb

2021 John Rawlings

2002 Dean Wm. Taylor

2014 Susan McDougall

Claytonia perfoliata ssp. perfoliata Claytonia, Miner's lettuce

native
Annual herb

2008 Steve Matson

Montia perfoliata Claytonia, Miner's lettuce

native
Annual herb

2008 Steve Matson

Claytonia rubra Red stemmed spring beauty, Redstem springbeauty

native
Annual herb

2022 Bob Sweatt

2021 Dylan Neubauer

2022 Bob Sweatt

Claytonia rubra ssp. depressa Red stemmed spring beauty, Redstem springbeauty

native
Annual herb

2021 Zoya Akulova-Barlow

2020 Susan McDougall

2014 Garth Wadsworth

Claytonia rubra ssp. rubra Red stemmed miner's lettuce, Redstem springbeauty

native
Annual herb

2003 Steve Matson

Claytonia saxosa Brandegee's spring beauty, Brandegee's springbeauty

native
Annual herb

2023 Steve Conger

2020 R.A. Chasey

2015 John Doyen

Claytonia sibirica Candy flower, Indian lettuce or candy flower, Siberian springbeauty

native
Perennial herb

2017 Steve Matson

2015 James Gonsman

Claytonia umbellata Great basin claytonia, Great basin springbeauty

• rare native
Perennial herb

2020 Dolly B. Chapman

2013 Larry Crawford

Clematis armandii

non-native
Perennial herb, Vine

Clematis lasiantha Chaparral clematis, Pipestem

native
Perennial herb, Vine

2008 Steve Matson

2018 Steve Matson

Clematis ligusticifolia Creek clematis, Western white clematis, Yerba de chiva

native
Perennial herb, Vine

2018 Diane Etchison

2012 Steve Matson

Clematis pauciflora Few flowered clematis, Hill clematis, Ropevine clematis

native
Perennial herb, Vine

2015 Diane Etchison

2019 Ron Vanderhoff

2019 Diane Etchison

Clematis terniflora Japanese clematis, Sweet autumn clematis

non-native
Vine

1999 Nick Kurzenko

2012 Zoya Akulova

Gladys Lucille Smith1999 California Academy of Sciences

Clematis terniflora var. mandshurica Japanese clematis, Sweet autumn clematis

non-native
Vine

1999 Nick Kurzenko

2012 Zoya Akulova

Gladys Lucille Smith1999 California Academy of Sciences

Clematis vitalba Old man's beard, Traveller's joy

• invasive non-native
Vine

2015 ken moore

2019 Cynthia Powell

2015 Ellen Uhler

Cleome gynandra Spiderwisp

non-native
Annual herb

CAPPARACEAE

Cleome spinosa Pink queen

non-native
Annual herb

CAPPARACEAE

Isomeris arborea Bladderpod

native
Shrub

2022 Steven M Norris

2023 David Strauch

Peritoma arborea Bladderpod

native
Shrub

2022 Steven M Norris

2023 David Strauch

Peritoma arborea var. angustata

native
Annual herb

2016 Steve Matson

2016 James Gonsman

Peritoma arborea var. arborea

native
Annual herb

2023 Ron Vanderhoff

Isomeris arborea var. globosa

native
Annual herb

2023 R.A. Chasey

2022 Mike Russler

2023 R.A. Chasey

Peritoma arborea var. globosa

native
Annual herb

2023 R.A. Chasey

2022 Mike Russler

2023 R.A. Chasey

Cleomella brevipes Shortstalk stinkweed

• rare native
Annual herb

2008 Steve Matson

2007 Steve Matson

Cleomella hillmanii Hillman's stinkweed

native
Annual herb

2012 Gerald Carr

Cleome lutea Yellow bee plant

native
Annual herb

2010 Steve Matson

Peritoma lutea Yellow bee plant

native
Annual herb

2010 Steve Matson

Cleomella obtusifolia Bluntleaf stinkweed, Mojave cleomella

native
Annual herb

2011 Steve Matson

2020 Steve Matson

Cleomella parviflora Slender cleomella

native
Annual herb

2005 Steve Matson

Cleome platycarpa Golden bee plant

native
Annual herb

Peritoma platycarpa Golden bee plant

native
Annual herb

Cleomella plocasperma Twisted cleomella

native
Annual herb

2016 Steve Matson

2022 Steve Matson

2016 Steve Matson

Cleome serrulata Rocky mountain bee plant

non-native
Annual herb

2018 Joe Woods

Peritoma serrulata Rocky mountain bee plant

non-native
Annual herb

2018 Joe Woods

Carsonia sparsifolia

native
Perennial herb

2011 Steve Matson

2005 Steve Matson

Clinopodium chandleri San miguel savory

• rare native
Perennial herb

2020 Diane Etchison

2018 Ron Vanderhoff

2021 Ron Vanderhoff

Clinopodium douglasii Yerba buena

native
Perennial herb

2019 Gary McDonald

2012 Gary McDonald

Satureja douglasii Yerba buena

native
Perennial herb

2019 Gary McDonald

2012 Gary McDonald

Clinopodium mimuloides Monkey flower savory, Monkeyflower savory

• rare native
Perennial herb

2020 David Wolfson

2018 Scott Yarger

Clinopodium vulgare Wild basil

non-native
Perennial herb

2010 Louis-M. Landry

2016 Keir Morse

Clintonia andrewsiana Andrew's clintonia, Blue bead lily, Red clintonia

native
Perennial herb

2022 Suzanne L. Weakley

2020 Eliezer Margolis

2013 Paul Preston

Clintonia uniflora Queen's cup, bead lily

native
Perennial herb

2022 Dana York

2019 Matt Berger

2018 Julie Kierstead Nelson

Clitoria ternatea Asian pigeonwings

non-native
Perennial herb, Vine

2010 Moorea Biocode

Cneoridium dumosum Bush rue, Bushrue

native
Shrub

2023 Ron Vanderhoff

2020 Ron Vanderhoff

2013 Cynthia Keiser

Cochlearia groenlandica Greenland cochlearia

• rare native
Annual herb

Dr. G Dallas and Margaret Hanna2008 California Academy of Sciences

Cochlearia officinalis Spoonwort

native
Annual herb

2014 Phil Pullen

Coix lacryma-jobi Job's tears

non-native
Perennial grass

2010 Dr. Mark S. Brunell

2010 Moorea Biocode

Coleogyne ramosissima Black brush, Blackbrush

native
Shrub

2019 Ron Vanderhoff

2015 Steve Matson

2011 Steve Matson

Collinsia antonina San antonio collinsia

• rare native
Annual herb

2013 Chris Winchell

Collinsia bartsiifolia White blue eyed mary, White collinsia

native
Annual herb

2022 Mike Russler

2021 Mike Russler

Collinsia bartsiifolia ssp. davidsonii White blue eyed mary, White collinsia

native
Annual herb

2022 Mike Russler

2021 Mike Russler

Collinsia bartsiifolia var. bartsiifolia White blue eyed mary, White chinese houses, White collinsia

native
Annual herb

Collinsia bartsiifolia var. bartsiifolia

2021 Mike Russler

Collinsia bartsiifolia var. davidsonii Davidson's blue eyed mary, Davidson's collinsia

native
Annual herb

2015 Justin Luong

2022 Mike Russler

Collinsia callosa Desert collinsia, Desertmountain blue eyed mary

native
Annual herb

2020 Matt Berger

2014 Steve Matson

2023 Mike Russler

Collinsia childii Child's blue eyed mary, Child's collinsia

native
Annual herb

2014 Steve Matson

2020 Matt Berger

2019 Matt Berger

Collinsia concolor Chinese houses, White collinsia

native
Annual herb

2020 Julie Ann Watson

2003 Charles E. Jones

2014 Keir Morse

Collinsia corymbosa Round headed chinese houses, Roundhead chinese houses

• rare native
Annual herb

2007 Steve Matson

Collinsia grandiflora Giant blue eyed mary, Large flowered collinsia

native
Annual herb

2020 Steve Conger

2010 Vernon Smith

2008 Keir Morse

Collinsia greenei Greene's blue eyed mary, Greene's collinsia

native
Annual herb

2019 Steve Matson

Collinsia heterophylla Purple chinese houses

native
Annual herb

2022 Mary Ann Machi

2019 David Greenberger

2019 Ron Vanderhoff

Collinsia heterophylla var. heterophylla Purple chinese houses, Chinese-Houses

native
Annual herb

Collinsia heterophylla var. heterophylla

2022 R.A. Chasey

2019 Jacob Smith

2023 R.A. Chasey

Collinsia linearis Narrow leaf collinsia, Narrowleaf blue eyed mary

native
Annual herb

2022 Dana York

2008 Keir Morse

Collinsia multicolor San Francisco blue eyed mary, San Francisco collinsia

• rare native
Annual herb

2022 Janell Hillman

2019 Ken Hickman

2018 Barry Thomson

Collinsia parryi Parry's blue eyed mary, Parry's collinsia

native
Annual herb

2019 Ron Vanderhoff

2016 Ron Vanderhoff

2015 Ron Vanderhoff

Collinsia parviflora Few flowered blue eyed mary, Small flowered blue eyed mary, Blue-eyed Mary

native
Annual herb

2023 Alaine Arslan

2019 Susan McDougall

2022 Mike Russler

Collinsia rattanii Rattan's blue eyed mary, Rattan's collinsia, Sticky blue eyed mary

native
Annual herb

2017 David popp

2008 Keir Morse

2004 Sheli Wingo

Collinsia sparsiflora Few flowered collinsia

native
Annual herb

2021 Steve Matson

2015 Steve Matson

Collinsia sparsiflora var. arvensis Field collinsia

native
Annual herb

2013 James Gonsman

2023 R.A. Chasey

1997 Dean Wm. Taylor

Collinsia sparsiflora var. bruceae Bruce's collinsia

native
Annual herb

2017 MCOSD EDRR

2008 George W. Hartwell

2009 George W. Hartwell

Collinsia sparsiflora var. collina Hillside collinsia

native
Annual herb

2021 Steve Matson

2015 Steve Matson

Collinsia sparsiflora var. sparsiflora Few flowered collinsia

native
Annual herb

2015 James Gonsman

2024 R.A. Chasey

2021 Charles Russell

Collinsia tinctoria Sticky chinese houses, Tincture plant

native
Annual herb

2016 Steve Matson

2022 R.A. Chasey

Collinsia torreyi Torrey's blue eyed mary, Torrey's collinsia

native
Annual herb

2004 Steve Matson

2017 Steve Matson

Collinsia torreyi ssp. torreyi Torrey's blue eyed mary, Torrey's collinsia

native
Annual herb

2004 Steve Matson

2017 Steve Matson

Collinsia torreyi var. brevicarinata Torrey's blue eyed mary, Torrey's collinsia

native
Annual herb

2016 David popp

2001 Steven Thorsted

Collinsia torreyi var. latifolia Broad leafed collinsia, Broad leaved collinsia, Torrey's blue eyed mary

native
Annual herb

2017 Steve Matson

Collinsia torreyi var. torreyi Torrey's blue eyed mary, Torrey's collinsia

native
Annual herb

2008 Steve Matson

2022 Richard Sullivan

Collinsia torreyi var. wrightii Wright's blue eyed mary, Wright's collinsia

native
Annual herb

2022 Steve Laymon

2004 Steve Matson

Geoff Burleigh

Collomia diversifolia Serpentine collomia

• rare native
Annual herb

2020 Matt Berger

2020 John Game

Collomia grandiflora Grand collomia, Large flowered collomia, Mountain collomia

native
Annual herb

2019 Diane Etchison

2020 Bob Sweatt

2013 BOB CASE

Collomia heterophylla Variableleaf collomia, Varied leaved collomia

native
Annual herb

2018 Stacie Wolny

2017 Steve Matson

2018 Parker Santiago

Collomia larsenii Talus collomia

• rare native
Perennial herb (rhizomatous)

2023 Dana York

1991 Julie A. Kierstead

Collomia linearis Narrow leaved collomia, Slenderleaf collomia, Tiny trumpet

native
Annual herb

2019 Bob Sweatt

2003 Steve Matson

Collomia rawsoniana Flaming trumpet

• rare native
Perennial herb (rhizomatous)

2022 Mike Russler

2003 Aaron Schusteff

Collomia tinctoria Staining Collomia, Yellow staining collomia

native
Annual herb

2016 Steve Matson

2006 Steve Matson

2016 Steve Matson

Collomia tracyi Tracy's collomia

• rare native
Annual herb

2022 Dana York

2023 Steve Conger

Colocasia esculenta Taro root

• invasive non-native
Perennial herb

2017 Ron Vanderhoff

2018 Ron Vanderhoff

Colubrina californica California snake bush, Colubrina, Las animas colubrina

• rare native
Shrub

2019 Richard Spjut

Colutea arborescens Bladder senna

non-native
Tree, Shrub

2003 Jennifer Forman

Comandra umbellata Bastard toadflax

native
Perennial herb (parasitic)

2020 David popp

2018 Steve Matson

Comandra umbellata ssp. umbellata Bastard toadflax

native
Perennial herb (parasitic)

2020 David popp

2018 Steve Matson

Comandra umbellata ssp. californica Bastard toad flax, Bastard toadflax, California bastard toadflax

native
Perennial herb (parasitic)

2018 Steve Matson

2008 Steve Matson

2018 Steve Matson

Comandra umbellata ssp. pallida Bastard toad flax, Bastard toadflax, California bastard toadflax

native
Perennial herb (parasitic)

2018 Steve Matson

2008 Steve Matson

2018 Steve Matson

Comarostaphylis diversifolia Summer holly

native
Shrub

2014 Steve Matson

2021 Ron Vanderhoff

Comarostaphylis diversifolia ssp. diversifolia Summer holly

• rare native
Shrub

Comarostaphylis diversifolia ssp. diversifolia

2015 Keir Morse

2021 Ron Vanderhoff

2012 Ron Vanderhoff

Comarostaphylis diversifolia ssp. planifolia Flat leaf summer holly

native
Shrub

Comarostaphylis diversifolia ssp. planifolia

2014 Steve Matson

Comarum palustre Marsh cinquefoil

native
Perennial herb

2020 Bob Sweatt

2018 Dean Taylor

2006 Steve Matson

Potentilla palustris Marsh cinquefoil

native
Perennial herb

2020 Bob Sweatt

2018 Dean Taylor

2006 Steve Matson

Comastoma tenellum Dane's dwarf gentian

native
Annual herb

2009 Steve Matson

Gentianella tenella Dane's dwarf gentian

native
Annual herb

2009 Steve Matson

Commelina benghalensis Dayflower, Jio

• invasive non-native
Annual, Perennial herb

2018 Ron Vanderhoff

2015 Ron Vanderhoff

2018 Ron Vanderhoff

Commelina diffusa Climbing dayflower

non-native
Annual, Perennial herb

Commelina erecta var. erecta Whitemouth dayflower

non-native
Annual, Perennial herb

Condalia globosa var. pubescens Bitter snakewood, Spiny abrojo, Spiny crucillo

• rare native
Shrub

2019 Richard Spjut

Condea emoryi Desert lavender

native
Shrub

2020 David Greenberger

2019 Michelle Tollett

2023 Keir Morse

Hyptis emoryi Desert lavender

native
Shrub

2020 David Greenberger

2019 Michelle Tollett

2023 Keir Morse

Conicosia pugioniformis False ice plant, Narrow leaved iceplant

• invasive non-native
Perennial herb

2022 Mike Russler

Conioselinum pacificum Hemlock parsley

native
Perennial herb

2019 Joaquin Hale

2019 joaquin hale

Conium maculatum Poison hemlock

• invasive non-native
Perennial herb

2019 James Bailey

2013 Toni Corelli

2016 Cynthia Powell

Conringia orientalis Hare's ear mustard

non-native
Annual herb

2011 Louis-M. Landry

Consolida ajacis Doubtful knight's spur

non-native
Annual herb

2006 Luigi Rignanese

Consolida regalis Royal knight's-spur

non-native
Annual herb

Constancea nevinii Nevin's woolly sunflower

• rare native
Shrub

2019 Aaron Echols

2011 Dylan Neubauer

2018 Susan McDougall

Eriophyllum nevinii Nevin's woolly sunflower

• rare native
Shrub

2019 Aaron Echols

2011 Dylan Neubauer

2018 Susan McDougall

Convolvulus althaeoides Hollyhock bindweed, Mallow bindweed

non-native
Perennial herb, Vine

2005 Luigi Rignanese

Convolvulus arvensis Field bindweed, Orchard morningglory

• invasive non-native
Perennial herb, Vine

2022 Steve Matson

2021 Ron Vanderhoff

2022 Steve Matson

Convolvulus equitans Small flowered morning glory

• rare native
Annual herb

2016 Ron Vanderhoff

2017 James Bailey

2023 David Gowen

Convolvulus simulans Small flowered morning glory

• rare native
Annual herb

2016 Ron Vanderhoff

2017 James Bailey

2023 David Gowen

Convolvulus tricolor Dwarf morning glory

non-native
Annual herb, Vine

2000 Joseph Dougherty/ecology.org

2005 Louis-M. Landry

Coprosma repens Creeping mirrorplant

non-native
Shrub

2015 Richard Chasey

2009 Dean Taylor

2011 Daniel Gluesenkamp

Coptis laciniata Oregon golden thread, Oregon goldthread

• rare native
Perennial herb

2023 Dana York

Corallorhiza maculata Spotted coralroot, Summer coral root, Summer coralroot

native
Perennial herb

2023 Steve Conger

2013 BOB CASE

2018 Rick Wachs

Corallorhiza maculata var. flavida Summer coralroot

native
Perennial herb

2019 Bob Sweatt

2020 Michael Mitchell

2019 Bob Sweatt

Corallorhiza maculata var. maculata Summer coralroot

native
Perennial herb

2019 Bob Sweatt

2020 Michael Mitchell

2019 Bob Sweatt

Corallorhiza maculata var. immaculata Summer coralroot

native
Perennial herb

2018 Timothy Boomer

2022 Michael Heine

2020 Bob Sweatt

Corallorhiza maculata var. occidentalis Summer coralroot

native
Perennial herb

2018 Timothy Boomer

2022 Michael Heine

2020 Bob Sweatt

Corallorhiza maculata ssp. mertensiana Merten's coral root, Pacific coralroot

native
Perennial herb

2021 John L. Thompson

2018 Julie Kierstead Nelson

2022 Mary Sue Ittner

Corallorhiza mertensiana Merten's coral root, Pacific coralroot

native
Perennial herb

2021 John L. Thompson

2018 Julie Kierstead Nelson

2022 Mary Sue Ittner

Corallorhiza striata Hooded coralroot, Striped coral root

native
Perennial herb

2021 Mary Ann Machi

2022 Steve Conger

2019 Timothy Boomer

Corallorhiza striata var. striata Hooded coralroot, Striped coral root

native
Perennial herb

2021 Mary Ann Machi

2022 Steve Conger

2019 Timothy Boomer

Corallorhiza trifida Northern coral root, Yellow coralroot

• rare native
Perennial herb (rhizomatous)

2023 Chelsea Kieffer

Cordylanthus capitatus Yakima bird's beak

• rare native
Annual herb (hemiparasitic)

2012 Aaron Schusteff

Cordylanthus eremicus ssp. eremicus Desert bird's beak

• rare native
Annual herb (hemiparasitic)

2019 Matt Berger

Cordylanthus eremicus ssp. kernensis Kern bird's beak, Kern plateau bird's beak

• rare native
Annual herb (hemiparasitic)

2020 Matt Berger

2018 Mary Merriman

Cordylanthus kingii ssp. kingii King's bird's beak

native
Annual herb

2008 Steve Matson

2019 Matt Berger

Cordylanthus kingii ssp. helleri Heller's bird's beak

native
Annual herb

2019 Matt Berger

2014 Steve Matson

2019 Matt Berger

Cordylanthus nevinii Nevin's bird's beak

native
Annual herb

2023 R.A. Chasey

2021 R.A. Chasey

2021 Arlee Montalvo

Cordylanthus nidularius Mt. Diablo bird's beak

• rare native
Annual herb (hemiparasitic)

2014 John Game

2023 Ryan O'Dell

2012 Terrence Gosliner

Cordylanthus parviflorus Purple bird's beak

• rare native
Annual herb (hemiparasitic)

2011 Keir Morse

Cordylanthus pilosus Hairy bird's beak

native
Annual herb

2017 Jill Beckett

2009 Vernon Smith

2020 Paul Aigner

Cordylanthus pilosus ssp. hansenii Hansen's bird's beak

native
Annual herb

2022 Stacie Sherman

2019 Stacie Sherman

2022 Stacie Sherman

Cordylanthus pilosus ssp. pilosus Hairy bird's beak

native
Annual herb

2022 R.A. Chasey

2015 John Doyen

Cordylanthus pringlei Pringle's bird's beak

native
Annual herb

2012 Jake Ruygt

Cordylanthus ramosus Bushy bird's beak

native
Annual herb

2019 Steve Matson

2006 Steve Matson

2019 Matt Berger

Cordylanthus rigidus Rigid bird's beak, Stiffbranch bird's beak

native
Annual herb

2021 Mike Russler

2023 Ron Vanderhoff

2021 Mike Russler

Cordylanthus rigidus ssp. littoralis Seaside bird's beak

• rare native
Annual herb (hemiparasitic)

2022 Irene Rosen

2022 R.A. Chasey

Cordylanthus rigidus ssp. rigidus Rigid bird's beak, Stiffbranch bird's beak

native
Annual herb

2021 Mike Russler

Cordylanthus rigidus ssp. setigerus Bristly Bird's Beak

native
Annual herb (hemiparasitic)

2023 Ron Vanderhoff

2021 Ron Vanderhoff

2003 Dr. Kenneth L. Bowles

Cordylanthus tenuis Slender bird's beak

native
Annual herb

2015 Steve Matson

2003 Steve Matson

2019 Bob Sweatt

Cordylanthus tenuis ssp. barbatus Fresno county bird's beak

• rare native
Annual herb (hemiparasitic)

2023 Mike Russler

Cordylanthus tenuis ssp. brunneus Serpentine bird's beak

• rare native
Annual herb (hemiparasitic)

2003 William Maslach

2023 R.A. Chasey

Cordylanthus tenuis ssp. capillaris Pennell's bird's beak

• rare native
Annual herb (hemiparasitic)

2015 John Doyen

2009 Aaron Arthur

Cordylanthus tenuis ssp. pallescens Pallid bird's beak

• rare native
Annual herb (hemiparasitic)

2019 Julie Kierstead Nelson

Cordylanthus tenuis ssp. tenuis Slender bird's beak

native
Annual herb

2019 Bob Sweatt

2019 Matt Berger

2019 R.A. Chasey

Cordylanthus tenuis ssp. viscidus Slender bird's beak, Sticky bird's beak, Viscid bird's beak

native
Annual herb

2015 Steve Matson

Cordyline australis Cabbage tree

• invasive non-native
Tree

LAXMANNIACEAE

2013 UCSC Weed Management Group

2021 Ramona Robison

2019 Lenihan Mazur

Coreopsis grandiflora Largeflower tickseed

non-native
Perennial herb

2012 Zoya Akulova

2013 Richard Spellenberg

Coreopsis lanceolata Garden coreopsis, Lanceleaf tickseed

non-native
Perennial herb

2018 Chris Qian

2013 Richard Spellenberg

Coreopsis rosea Pink tickseed

non-native
Perennial herb

Coreopsis tinctoria Calliopsis, Golden tickseed

non-native
Annual herb

2015 Leah Bedoian

2020 Joe Woods

Coreopsis tinctoria var. atkinsoniana Calliopsis, Golden tickseed

non-native
Annual herb

2015 Leah Bedoian

2020 Joe Woods

Coreopsis basalis Rock tickseed, Wright's coreopsis

non-native
Annual herb

2007 Louis-M. Landry

Corethrogyne filaginifolia Common sandaster

native
Perennial herb

2022 Mike Russler

2018 Ron Vanderhoff

2019 Diane Etchison

Lessingia filaginifolia var. filaginifolia Common sandaster

native
Perennial herb

Lessingia filaginifolia var. filaginifolia

2022 Mike Russler

2018 Ron Vanderhoff

2019 Diane Etchison

Corethrogyne filaginifolia var. californica California sandaster

native
Perennial herb

Corethrogyne filaginifolia var. californica

2019 Mary Conway

2017 Julie Ann Watson

Corethrogyne filaginifolia var. incana San diego sand aster, San diego sandaster

• rare native
Perennial herb

2017 Larry Sward

Corethrogyne filaginifolia var. linifolia Del mar mesa sand aster, Del mar mesa sandaster

• rare native
Perennial herb

Corethrogyne filaginifolia var. linifolia

2022 Alexander S. Kunz

2023 R.A. Chasey

2019 Newton W

Corethrogyne leucophylla Branching beach aster, Whiteleaf sandaster

• rare native
Perennial herb

2022 R.A. Chasey

Coriandrum sativum Cilantro, Coriander

non-native
Annual herb

2014 Ron Vanderhoff

2005 Louis-M. Landry

2015 Jean Pawek

Corispermum americanum American bugseed

native
Annual herb

2018 Steve Matson

Corispermum americanum var. americanum American bugseed

native
Annual herb

2018 Steve Matson

Cornus alternifolia Alternateleaf dogwood

non-native
Shrub, Tree

Cornus florida Flowering dogwood

non-native
Shrub, Tree

2009 Zoya Akulova

2007 Matt Below

Cornus glabrata Brown dogwood

native
Tree, Shrub

2021 Donald Burk

2021 Barbara Peck

2021 John Rawlings

Cornus nuttallii Mountain dogwood, Pacific dogwood, Pacific mountain dogwood

native
Shrub

2018 Matt Berger

2019 Susan McDougall

2019 Janith Johnson

Cornus sericea American dogwood, Creek dogwood, Redosier dogwood

native
Shrub

2023 Ellen Uhler

2018 Hayley Ross

2016 Suzanne L. Weakley

Cornus sericea ssp. occidentalis Western dogwood

native
Shrub

2019 David Greenberger

2018 Lynn Overtree

2020 Susan McDougall

Cornus sericea ssp. sericea American dogwood, Creek dogwood, Red osier dogwood

native
Shrub

2003 Steve Matson

2019 Richard Spjut

2020 Doug Allshouse

Cornus stolonifera American dogwood, Creek dogwood, Red osier dogwood

native
Shrub

2003 Steve Matson

2019 Richard Spjut

2020 Doug Allshouse

Cornus sessilis Blackfruit dogwood, Miners dogwood, Western cornelian cherry

native
Tree

2019 Bill Haley

2023 Mary Ann Machi

2021 Christopher Collier

Cornus canadensis Bunch berry

• rare native
Perennial herb

2001 William Maslach

2018 Jonathan Lee

2021 Scot Loring

Cornus unalaschkensis Bunch berry

• rare native
Perennial herb

2001 William Maslach

2018 Jonathan Lee

2021 Scot Loring

Coronilla valentina Mediterranean crownvetch

non-native
Shrub

2007 Luigi Rignanese

Coronilla varia Purple crownvetch

non-native
Shrub

2021 Mike Russler

2022 Cara Wilcox

Securigera varia Purple crownvetch

non-native
Shrub

2021 Mike Russler

2022 Cara Wilcox

Cortaderia jubata Pampas grass, Purple pampas grass

• invasive non-native
Perennial grass

2018 Ramona Robison

2021 Michelle Karle

2022 Michelle Karle

Cortaderia selloana Uruguayan pampas grass

• invasive non-native
Perennial grass

2022 Ken-ichi Ueda

2023 Randall English

2022 Ron Vanderhoff

Corydalis aurea Golden corydalis, Scrambled eggs

native
Annual, Perennial herb

2005 Steve Matson

2010 Barry Breckling

Corydalis aurea ssp. aurea Golden corydalis, Scrambled eggs

native
Annual, Perennial herb

2005 Steve Matson

2010 Barry Breckling

Corydalis aurea ssp. occidentalis Golden corydalis, Scrambled eggs

native
Annual, Perennial herb

2005 Steve Matson

2010 Barry Breckling

Corydalis caseana Sierra fumewort

native
Perennial herb

2020 Dolly B. Chapman

2020 Alaine Arslan

2009 BOB CASE

Corydalis caseana ssp. brachycarpa Sierra fumewort

native
Perennial herb

2020 Dolly B. Chapman

2020 Alaine Arslan

2009 BOB CASE

Corydalis caseana ssp. brandeegei Sierra fumewort

native
Perennial herb

2020 Dolly B. Chapman

2020 Alaine Arslan

2009 BOB CASE

Corydalis caseana ssp. brandegeei Sierra fumewort

native
Perennial herb

2020 Dolly B. Chapman

2020 Alaine Arslan

2009 BOB CASE

Corydalis caseana ssp. cusickii Sierra fumewort

native
Perennial herb

2020 Dolly B. Chapman

2020 Alaine Arslan

2009 BOB CASE

Corydalis caseana ssp. caseana Sierra corydalis, Sierra fumewort

native
Perennial herb

2022 Bob Sweatt

2023 Charles Russell

2022 Bob Sweatt

Corylus cornuta Beaked hazelnut

native
Shrub

2017 Steve Matson

2016 Steve Matson

Corylus cornuta var. cornuta Beaked hazelnut

native
Shrub

2017 Steve Matson

2016 Steve Matson

Corylus cornuta ssp. californica Beaked hazelnut

native
Shrub

2017 Steve Matson

Corylus cornuta var. californica Beaked hazelnut

native
Shrub

2017 Steve Matson

Coryphantha alversonii Foxtail cactus

• rare native
Perennial herb (stem succulent)

2019 Lynn Sweet

Coryphantha chlorantha Desert pincushion

• rare native
Perennial herb

2021 Sandy Leatherman

2005 Trent M. Draper

Coryphantha vivipara Spinystar

native
Shrub (stem succulent)

2010 John Game

2009 James M. Andre

2010 John Game

Escobaria vivipara Spinystar

native
Shrub (stem succulent)

2010 John Game

2009 James M. Andre

2010 John Game

Escobaria vivipara ssp. rosea Spinystar

native
Shrub (stem succulent)

2010 John Game

2009 James M. Andre

2010 John Game

Escobaria vivipara var. arizonica Spinystar

native
Shrub (stem succulent)

2010 John Game

2009 James M. Andre

2010 John Game

Escobaria vivipara var. vivipara Spinystar

native
Shrub (stem succulent)

2010 John Game

2009 James M. Andre

2010 John Game

Coryphantha vivipara var. rosea Viviparous foxtail cactus

• rare native
Perennial herb (stem succulent)

2010 John Game

2009 James M. Andre

2010 John Game

Escobaria vivipara var. bisbeeana Viviparous foxtail cactus

• rare native
Perennial herb (stem succulent)

2010 John Game

2009 James M. Andre

2010 John Game

Escobaria vivipara var. rosea Viviparous foxtail cactus

• rare native
Perennial herb (stem succulent)

2010 John Game

2009 James M. Andre

2010 John Game

Cosmos bipinnatus Garden cosmos

non-native
Annual herb

2011 Nick Kurzenko

2004 Nick Kurzenko

2006 Nick Kurzenko

Cosmos sulphureus Sulphur cosmos

non-native
Annual herb

2005 Louis-M. Landry

2012 Richard Spellenberg

Anthemis tinctoria Golden marguerite

non-native
Perennial herb

2005 Louis-M. Landry

2007 Luigi Rignanese

Cota tinctoria Golden marguerite

non-native
Perennial herb

2005 Louis-M. Landry

2007 Luigi Rignanese

Cotinus coggygria European smoketree

non-native
Tree, Shrub

2009 Neal Kramer

2008 Louis-M. Landry

2007 Dr. Amadej Trnkoczy

Cotoneaster franchetii Cotoneaster, Francheti cotoneaster, Orange cotoneaster

• invasive non-native
Shrub

2021 Cynthia Powell

2021 Lenihan Mazur

2019 Lenihan Mazur

Cotoneaster horizontalis Wall or herringbone cotoneaster

non-native
Shrub

2022 Maria Alvarez

2005 Louis-M. Landry

2006 Peter Zika

Cotoneaster integrifolius Entire-leaved cotoneaster

non-native
Shrub

2021 R.A. Chasey

2021 David Greenberger

2006 Peter Zika

Cotoneaster microphyllus Entire-leaved cotoneaster

non-native
Shrub

2021 R.A. Chasey

2021 David Greenberger

2006 Peter Zika

Cotoneaster lacteus Milkflower cotoneaster

• invasive non-native
Shrub

2022 John Doyen

2019 Ron Vanderhoff

2022 John Doyen

Cotoneaster pannosus Cotoneaster, Silverleaf cotoneaster, Woolly cotoneaster

• invasive non-native
Shrub

2021 David Wolfson

2019 Cynthia Powell

2018 MCOSD EDRR

Cotoneaster simonsii Simons' cotoneaster

non-native
Shrub

2006 Peter Zika

Cotula australis Australian brass buttons, Australian cotula, Australian waterbuttons

non-native
Annual herb

2023 Mike Russler

2022 Ron Vanderhoff

2023 Mike Russler

Cotula coronopifolia Brass buttons, Common brassbuttons

• invasive non-native
Perennial herb

2022 Steve Matson

2018 Adam Chasey

Cotyledon orbiculata Pig's ear

non-native
Perennial herb

2021 Mike Russler

Cotyledon orbiculata var. oblonga Cotyledon, Pig's ear

non-native
Perennial herb

2021 Mike Russler

2006 Joseph Dougherty/ecology.org

2021 Mike Russler

Crassocephalum crepidioides Redflower ragleaf

non-native
Perennial herb

Crassula aquatica Aquatic pygmy weed, Pigmy weed, Water pygmyweed

native
Annual herb

2019 Ron Vanderhoff

2022 Ken-ichi Ueda

2022 Catherine Chang

Crassula colligata ssp. lamprosperma

non-native
Annual herb

2023 Glen R. Morrison

2020 Ron Vanderhoff

Crassula connata Pigmy weed, Sand pygmy weed, Sand pygmyweed

native
Annual herb

2020 Ron Vanderhoff

2019 Ron Vanderhoff

Crassula connata var. subsimplex Pigmy weed, Sand pygmy weed, Sand pygmyweed

native
Annual herb

2020 Ron Vanderhoff

2019 Ron Vanderhoff

Crassula multicava Cape province pygmyweed

non-native
Perennial herb, Shrub

2017 James Bailey

2016 Thomas Reyes

2019 Patrick Furtado

Crassula argentea Jade plant

non-native
Shrub

2018 Ron Vanderhoff

Crassula ovata Jade plant

non-native
Shrub

2018 Ron Vanderhoff

Crassula solieri Little pygmy weed, Smoothseed pygmyweed

native
Annual herb

Crassula tetragona

non-native
Annual herb

2015 Keir Morse

2013 Zoya Akulova

2010 Zoya Akulova

Crassula muscosa Mediterranean pygmy weed, Moss pygmyweed

non-native
Annual herb

2019 Ron Vanderhoff

Crassula tillaea Mediterranean pygmy weed, Moss pygmyweed

non-native
Annual herb

2019 Ron Vanderhoff

Tillaea muscosa Mediterranean pygmy weed, Moss pygmyweed

non-native
Annual herb

2019 Ron Vanderhoff

Crataegus castlegarensis Castlegar hawthorne

• rare native
Shrub

2017 David popp

2011 Dean Wm. Taylor, Ph.D.

2008 John Dittes

Crataegus douglasii Black hawthorn, Douglas' hawthorn

native
Tree, Shrub

2020 uelf

2008 Trent M. Draper

2015 John Malpas

Crataegus douglasii var. douglasii Black hawthorn, Douglas' hawthorn

native
Tree, Shrub

2020 uelf

2008 Trent M. Draper

2015 John Malpas

Crataegus douglasii var. rivularis Black hawthorn, Douglas' hawthorn

native
Tree, Shrub

2020 uelf

2008 Trent M. Draper

2015 John Malpas

Crataegus gaylussacia Klamath hawthorn

native
Tree, Shrub

2016 Steve Matson

Crataegus laevigata Smooth hawthorn

non-native
Tree, Shrub

Crataegus monogyna Hawthorn

• invasive non-native
Shrub

2022 Emily R. Allen

2021 Isaac Kreger

2021 Sherry Adams

Crepis acuminata Long leaved hawk's beard, Long leaved hawksbeard, Tall hawksbeard

native
Perennial herb

2008 Steve Matson

Crepis bakeri Baker's hawksbeard

native
Perennial herb

2006 Steve Matson

2007 Steve Matson

Crepis bursifolia Italian hawksbeard

non-native
Perennial herb

2021 Zoya Akulova-Barlow

2018 Cynthia Powell

2011 Zoya Akulova

Crepis capillaris Hawksbeard, Smooth hawk's beard, Smooth hawksbeard

non-native
Annual, Perennial herb

2003 Steve Matson

2019 Randy Huey

Crepis intermedia Intermediate hawksbeard, Limestone hawksbeard

native
Perennial herb

2008 Steve Matson

Crepis modocensis Modoc hawksbeard

native
Perennial herb

2005 Steve Matson

2011 Gerald Carr

2005 Steve Matson

Crepis modocensis ssp. modocensis Modoc hawksbeard

native
Perennial herb

2021 David popp

2018 John Doyen

Crepis monticola Mountain hawk's beard, Mountain hawksbeard

native
Perennial herb

2023 Alaine Arslan

2020 Alaine Arslan

Crepis nana Dwarf alpine hawksbeard, Dwarf hawksbeard

native
Perennial herb

2007 Steve Matson

2022 richard mcneill

1994 Steve Matson

Crepis occidentalis Largeflower hawksbeard, Western hawk's beard, Western hawksbeard

native
Perennial herb

2006 Gerald Carr

2006 Steve Matson

2006 Gerald Carr

Crepis occidentalis ssp. conjuncta Largeflower hawksbeard

native
Perennial herb

2020 Dana York

2020 R.A. Chasey

Crepis occidentalis ssp. costata Largeflower hawksbeard

native
Perennial herb

2006 James M. Andre

Crepis occidentalis ssp. occidentalis Largeflower hawksbeard

native
Perennial herb

2013 Gary A. Monroe

Crepis occidentalis ssp. pumila Largeflower hawksbeard

native
Perennial herb

2015 Richard Spellenberg

Crepis pleurocarpa Naked stemmed hawksbeard, Nakedstem hawksbeard

native
Perennial herb

2019 Steve Matson

Crepis pulchra Smallflower hawksbeard

non-native
Perennial herb

Crepis rubra Red hawksbeard

non-native
Annual herb

2007 Luigi Rignanese

Crepis runcinata Fiddleleaf hawksbeard, Meadow hawksbeard

• rare native
Perennial herb

2008 Steve Matson

2014 Gerald Carr

2013 Steve Matson

Crepis runcinata var. hallii Fiddleleaf hawksbeard, Meadow hawksbeard

• rare native
Perennial herb

2008 Steve Matson

2014 Gerald Carr

2013 Steve Matson

Crepis runcinata ssp. hallii Hall's hawksbeard, Hall's meadow hawksbeard

native
Perennial herb

2008 Steve Matson

Crepis setosa Bristly hawksbeard, Rough hawksbeard

non-native
Annual herb

2012 Richard Spellenberg

1998 Dean Wm. Taylor

Crepis tectorum Narrowleaf hawksbeard

non-native
Annual herb

2010 Jeff Abbas

Crepis vesicaria Beaked hawksbeard

non-native
Annual, Perennial herb

2021 John Rawlings

2011 Toni Corelli

2010 Toni Corelli

Crepis vesicaria ssp. taraxacifolia Beaked hawksbeard, Weedy hawksbeard

non-native
Annual, Perennial herb

2011 Toni Corelli

2010 Neal Kramer

2010 Toni Corelli

Cressa truxillensis Alkali weed, Spreading alkaliweed

native
Perennial herb

2022 John Doyen

2018 Ron Vanderhoff

Crinum bulbispermum Hardy swamplily

non-native
Perennial herb (bulb)

Crithmum maritimum Rock samphire

non-native
Perennial herb

2013 Dean Taylor

2005 Luigi Rignanese

Crocanthemum aldersonii Alderson's rush-rose

native
Shrub

2019 Bonnie Nickel

2017 Keir Morse

Crocanthemum greenei Island rush-rose

• rare native
Shrub

2023 Keir Morse

2017 Brian Bielfelt

Crocanthemum scoparium peak rush-rose, broom rush-rose

native
Shrub

2020 Stacie Wolny

Helianthemum scoparium Peak Rushrose

native
Shrub

2018 Amy Rapport

2023 Ron Vanderhoff

2022 R.A. Chasey

Crocanthemum suffrutescens Bisbee peak rush-rose

• rare native
Shrub

2022 Charles Russell

2023 Rhonda Allen

Crocidium multicaule Common spring gold

native
Annual herb

2016 jim richards

2019 Glenn Fine

2023 R.A. Chasey

Crocosmia Xcrocosmiiflora Coppertips, Montbretia, Falling stars

• invasive non-native
Perennial herb

2014 Andrea Williams

2019 Lenihan Mazur

2014 Andrew Georgeades

Crossosoma bigelovii Bigelow crossosoma, Bigelow's ragged rock flower, Ragged rockflower

native
Shrub

2022 Eric Engles

2019 Richard Spjut

2020 Matt Berger

Crossosoma californicum California rockflower, Catalina crossosoma

• rare native
Shrub

2019 Susan McDougall

2024 Cynthia Powell

Crotalaria retusa Rattleweed

non-native
Perennial herb

Croton californicus California croton, Desert croton

native
Perennial herb

2022 Dianne Lake

2022 Aaron Echols

Croton dioicus Grassland croton

non-native
Annual herb

Croton setiger Turkey-mullein

native
Annual herb

2011 Steve Matson

2014 Richard Chasey

Croton setigerus Turkey-mullein

native
Annual herb

2011 Steve Matson

2014 Richard Chasey

Eremocarpus setigerus Turkey-mullein

native
Annual herb

2011 Steve Matson

2014 Richard Chasey

Croton wigginsii Wiggins' croton, Wiggins's croton

• rare native
Shrub

2024 Mike Russler

2020 Joey Santore

2019 Matt Berger

Crucianella angustifolia Narrow leafed crucianella, Narrow leaved crosswort, Narrowleaf crucianella

non-native
Annual herb

2020 Julie A. Kierstead

2020 R.A. Chasey

2019 Chasey

Crumia latifolia Wideleaf crumia moss

native
Moss

2022 Shane Hanofee

2005 Chris Wagner

Crupina vulgaris Bearded creeper, Common crupina

• invasive non-native
Annual herb

2023 Norm Macdonald

2012 Ramona Robison

2015 Daniel Lay

Crypsis alopecuroides Foxtail prickle grass, Foxtail pricklegrass

non-native
Annual grass

2021 Dana York

2021 R.A. Chasey

2022 Donald Burk

Crypsis schoenoides Swamp grass, Swamp picklegrass, Swamp pricklegrass

non-native
Annual grass

2023 Ron Vanderhoff

2018 Ron Vanderhoff

2019 Ron Vanderhoff

Crypsis vaginiflora African prickle grass, African pricklegrass

non-native
Annual grass

2018 David popp

2021 John Rawlings

2023 R.A. Chasey

Cryptantha affinis Common cryptantha, Quill cryptantha, Side grooved cryptantha

native
Annual herb

2008 Steve Matson

Cryptantha ambigua Basin cryptantha, Wilke's cryptantha, Wilkes' cryptantha

native
Annual herb

2019 Susan McDougall

2006 Keir Morse

Cryptantha barbigera Bearded cryptantha, Bearded forget me not

native
Annual herb

2019 Steve Matson

Cryptantha barbigera var. barbigera Bearded cryptantha

native
Annual herb

2014 Steve Matson

2012 Terrence Gosliner

2014 Steve Matson

Cryptantha barbigera var. fergusoniae Palm springs cryptantha

native
Annual herb

2010 James M. Andre

2011 Michael Crouse

Cryptantha celosioides Cocks comb cat's eye

• rare native
Perennial herb

2010 Gerald D. Carr

Cryptantha circumscissa var. rosulata Rosette cushion cryptantha

• rare native
Perennial herb

2019 Mary Merriman

2022 Richard Spjut

2011 James M. Andre

Cryptantha clevelandii Cleveland's cryptantha, Common cryptantha

native
Annual herb

2019 Ron Vanderhoff

2019 Diane Etchison

Cryptantha clevelandii var. florosa Coastal cryptantha

native
Annual herb

2020 David Greenberger

2020 Ryan Carle

2023 Ken-ichi Ueda

Cryptantha clokeyi Clokey's cryptantha, Prickly cryptantha

• rare native
Annual herb

2011 Cindy Hopkins

2011 Xeric Specialties

Cryptantha costata Ashen forget me not, Ribbed cryptantha

• rare native
Annual herb

2016 Steve Matson

2020 Matt Berger

Cryptantha crinita Sacramento cryptantha, Silky cryptantha

• rare native
Annual herb

2020 Matt Berger

Cryptantha crymophila Subalpine cryptantha

• rare native
Perennial herb

2019 Matt Berger

Cryptantha pterocarya var. cycloptera Tucson cryptantha

native
Annual herb

2012 Keir Morse

Cryptantha decipiens Granel forget me not, Gravel cryptantha, Gravelbar cryptantha

native
Annual herb

2007 Neal Kramer

2016 Keir Morse

Cryptantha dumetorum Bush loving cryptantha, Bushloving cryptantha, Flexous forget me not

native
Annual herb

2010 Steve Matson

2005 James M. Andre

2010 Steve Matson

Cryptantha echinella Prickly cryptantha

native
Annual herb

2019 Diane Etchison

2008 Steve Matson

Cryptantha flaccida Beaked cryptantha, Flaccid cryptantha, Weakstem cryptantha

native
Annual herb

2018 Alice Cummings

2016 Steve Matson

Cryptantha ganderi Gander's cryptantha

• rare native
Annual herb

2017 Diane Etchison

2017 Fred Melgert / Carla Hoegen

Cryptantha glomeriflora Truckee cryptantha

• rare native
Annual herb

2019 Steve Matson

2022 Steve Matson

Cryptantha gracilis Narrowstem cryptantha, Slender cryptantha, Slensder forget me not

native
Annual herb

2009 Steve Matson

Cryptantha hispidula Napa cryptantha

native
Annual herb

2022 R.A. Chasey

2021 R.A. Chasey

Cryptantha hooveri Hoover's cryptantha

• rare native
Annual herb

Cryptantha intermedia Clearwater cryptantha, Common cryptantha

native
Annual herb

2020 Ron Vanderhoff

2019 Ron Vanderhoff

Cryptantha intermedia var. intermedia Common cryptantha

native
Annual herb

2019 Ron Vanderhoff

2021 Ron Vanderhoff

2023 Ron Vanderhoff

Cryptantha nevadensis var. rigida Rigid cryptantha

native
Annual herb

2016 Bill Thiessen

2019 Mary Merriman

2016 Bill Thiessen

Cryptantha leiocarpa Coast cryptantha, Coastal cryptantha, Popcorn flower

native
Annual herb

2017 Steve Matson

Cryptantha mariposae Mariposa cryptantha

• rare native
Annual herb

2010 Robin Kent

2011 Steve Matson

2013 Jean Pawek

Cryptantha maritima Guadalupe cryptantha, Guadalupe island cryptantha, White haired forget me not

native
Annual herb

2022 Mike Russler

Cryptantha micrantha Purple root cryptantha, Purple rooted forget me not, Redroot cryptantha

native
Annual herb

2022 Ryan O'Dell

2019 Diane Etchison

Cryptantha micromeres Minute flowered cryptantha, Pygmyflower cryptantha, Small flowered cryptantha

native
Annual herb

2021 Jodi McGraw

2020 Ken Hickman

2019 John Rawlings

Cryptantha microstachys Popcorn flower, Tejon cryptantha

native
Annual herb

2019 Diane Etchison

2018 Ron Vanderhoff

2017 Diane Etchison

Cryptantha milo-bakeri Milo baker's cryptantha

native
Annual herb

2012 Dana York

2023 Ryan O'Dell

Cryptantha milobakeri Milo baker's cryptantha

native
Annual herb

2012 Dana York

2023 Ryan O'Dell

Cryptantha mohavensis Mojave cryptantha

native
Annual herb

2016 Steve Matson

Cryptantha muricata Pointed cryptantha, Prickly cryptantha, Prickly popcorn flower

native
Annual herb

2021 R.A. Chasey

2019 Marisa Persaud

Cryptantha muricata var. denticulata Prickly-nut cryptantha

native
Annual herb

2022 Mary Merriman

2010 Steve Matson

Cryptantha muricata var. jonesii Jones' cryptantha

native
Annual herb

2019 Ron Vanderhoff

Cryptantha muricata var. muricata Showy prickly-nut cryptantha

native
Annual herb

2023 Mike Russler

Cryptantha nemaclada Colusa cryptantha

native
Annual herb

2011 Steve Matson

Donald Myrick1999 California Academy of Sciences

Cryptantha nevadensis Nevada cryptantha, Nevada forget me not

native
Annual herb

2010 Steve Matson

Cryptantha nevadensis var. nevadensis Nevada cryptantha

native
Annual herb

2020 Steve Matson

2019 Diane Etchison

Cryptantha oxygona Sharp nut cryptantha, Sharpnut cryptantha

native
Annual herb

2022 Steve Matson

2020 Matt Berger

Cryptantha pterocarya Winged nut forget me not, Wingnut cryptantha

native
Annual herb

2022 Steve Matson

2019 Diane Etchison

Cryptantha pterocarya var. pterocarya Wingnut cryptantha

native
Annual herb

2020 David Greenberger

2016 James Gonsman

Cryptantha pterocarya var. purpusii Purpus' cryptantha

native
Annual herb

2019 Diane Etchison

2014 Keir Morse

Cryptantha rattanii Rattan's cryptantha

• rare native
Annual herb

2016 Paul Preston

Cryptantha recurvata Curve nut cryptantha, Curvenut cryptantha

native
Annual herb

2011 Steve Matson

2020 Steve Matson

Cryptantha roosiorum Bristlecone cryptantha

• rare native
Perennial herb

2011 Steve Matson

Cryptantha sobolifera Schoolcraft's cryptantha

• rare native
Perennial herb

2012 Gerald Carr

Cryptantha simulans Pine cryptantha, Pinewoods cryptantha

native
Annual herb

2003 Steve Matson

Cryptantha sparsiflora Slender cryptantha

native
Annual herb

2011 Steve Matson

Cryptantha spiculifera Snake river cryptantha

native
Annual herb

2013 Mary Winter

Cryptantha spithamaea

• rare native
Annual herb

2007 Keir Morse

2007 California Native Plant Society

Cryptantha subretusa Crater lake cryptantha

native
Annual herb

2011 Steve Matson

2018 Matt Berger

2019 Chasey

Cryptantha torreyana Torrey's cryptantha

native
Annual herb

2011 Steve Matson

2021 Steve Laymon

2011 Steve Matson

Cryptantha torreyana var. torreyana Torrey's cryptantha

native
Annual herb

2018 David popp

2018 Mary Merriman

2012 Jean Pawek

Cryptantha traskiae Trask's cryptantha

• rare native
Annual herb

2011 Neal Kramer

2011 Dylan Neubauer

2011 Neal Kramer

Cryptantha tumulosa New york mountain cryptantha, New york mtns. cryptantha

• rare native
Perennial herb

2008 Steve Matson

Cryptantha utahensis Scented cryptantha, Scented forget me not

native
Annual herb

2015 Steve Matson

2020 Steve Matson

Cryptantha watsonii Watson's cryptantha

native
Annual herb

2008 Steve Matson

Cryptantha wigginsii Wiggins' cryptantha

• rare native
Annual herb

2015 Patrick McConnell

Cryptogramma acrostichoides American parsely fern, American parsley fern, American rockbrake

native
Fern

2006 Steve Matson

Cryptogramma crispa ssp. acrostichoides American parsely fern, American parsley fern, American rockbrake

native
Fern

2006 Steve Matson

Cryptogramma cascadensis Cascade parsely fern, Cascade rockbrake

native
Fern

2023 Dana York

Cryptogramma crispa Parsley fern

non-native
Fern

Cryptomeria japonica Japanese cedar

non-native
Tree

2021 Robert Steers

2017 Gregory Arena

Cucumis melo Cantaloupe

non-native
Annual, Perennial herb

2007 George W. Hartwell

2007 Luigi Rignanese

2007 George W. Hartwell

Cucumis melo var. dudaim Dudaim melon

• invasive non-native
Annual, Perennial herb

2001 CDFA

Cucumis metuliferus African horned cucumber

non-native
Annual, Perennial herb

Cucumis myriocarpus Gooseberry gourd, Paddy melon

• invasive non-native
Annual herb, Vine

2001 CDFA

Cucurbita ficifolia Figleaf gourd

non-native
Vine

2017 Zoya Akulova

Cucurbita foetidissima Calabazilla, Missouri gourd, Mock orange

native
Perennial herb, Vine

2014 Steve Matson

2021 Ron Vanderhoff

Cucurbita moschata Crookneck squash

non-native
Annual herb, Vine

Cucurbita palmata Coyote gourd, Coyote melon

native
Annual, Perennial herb

2022 Steve Matson

2012 George Butterworth

2022 Steve Matson

Cucurbita pepo Field pumpkin

non-native
Annual herb, Vine

2018 Don Mackessy

2010 Moorea Biocode

2006 Louis-M. Landry

Cucurbita pepo var. giromontina Field pumpkin

non-native
Annual herb, Vine

2018 Don Mackessy

2010 Moorea Biocode

2006 Louis-M. Landry

Cucurbita pepo var. ovifera Field pumpkin

non-native
Annual herb, Vine

2018 Don Mackessy

2010 Moorea Biocode

2006 Louis-M. Landry

Cucurbita pepo var. turbinata Field pumpkin

non-native
Annual herb, Vine

2018 Don Mackessy

2010 Moorea Biocode

2006 Louis-M. Landry

Cuniculotinus gramineus Panamint rock goldenrod

• rare native
Perennial herb

2019 Steve Matson

2014 Steve Matson

Cunninghamia lanceolata Chinese fir

non-native
Tree

Cupaniopsis anacardioides Carrotwood

non-native
Tree

2018 Andy Jones

2021 Ron Vanderhoff

Cuphea hyssopifolia False heather

non-native
Annual, Perennial herb

Cuphea wrightii Wright's waxweed

non-native
Annual, Perennial herb

Cupressus lusitanica Cedar-of-goa

non-native
Tree

Cupressus sempervirens Italian cypress

non-native
Tree

2022 Ron Vanderhoff

2016 Zoya Akulova

Cuscuta brachycalyx San joaquin dodder

native
Annual herb, Vine (parasitic)

2008 Jorg Fleige

2008 Keir Morse

Cuscuta californica var. apodanthera San joaquin dodder

native
Annual herb, Vine (parasitic)

2008 Jorg Fleige

2008 Keir Morse

Cuscuta californica California dodder, Chaparral dodder

native
Annual herb, Vine (parasitic)

2019 Ron Vanderhoff

2018 David popp

2019 stephen rosenthal

Cuscuta californica var. californica California dodder, Chaparral dodder, Short flowered dodder

native
Annual herb, Vine (parasitic)

2021 R.A. Chasey

2021 Ron Vanderhoff

Cuscuta californica var. papillosa Chaparral dodder, Papillate dodder

native
Annual herb, Vine (parasitic)

2023 Keir Morse

Cuscuta campestris Field dodder

native
Annual herb, Vine (parasitic)

2017 Ron Vanderhoff

2022 Brad Cook

Cuscuta denticulata Desert dodder

native
Annual herb, Vine (parasitic)

2022 Mike Russler

Cuscuta howelliana Boggs lake dodder

native
Vine

2019 John Dittes

2006 George W. Hartwell

2004 Carol W. Witham

Cuscuta indecora Big seed alfalfa dodder, Bigseed alfalfa dodder

native
Annual herb, Vine (parasitic)

2011 Sierra Pacific Industries

Cuscuta indecora var. indecora Big seed alfalfa dodder, Bigseed alfalfa dodder

native
Annual herb, Vine (parasitic)

2011 Sierra Pacific Industries

Cuscuta japonica Japanese dodder

• invasive non-native
Annual herb, Vine (parasitic)

2014 Michael Perlmutter

2009 Barry Rice

Cuscuta jepsonii Jepson's dodder

• rare native
Annual herb, Vine

2019 Julie Kierstead Nelson

2021 Amy Rachkowski

Cuscuta leptantha Slender dodder

non-native
Annual herb, Vine (parasitic)

2008 Neal Kramer

Cuscuta occidentalis California dodder

native
Annual herb, Vine (parasitic)

2022 R.A. Chasey

2018 David popp

2022 R.A. Chasey

Cuscuta pacifica Goldenthread, Saltmarsh dodder

native
Annual herb, Vine (parasitic)

2021 David Wolfson

2022 Cynthia Powell

2022 Brad Cook

Cuscuta pacifica var. pacifica Dodder

native
Annual herb, Vine (parasitic)

2020 Ron Vanderhoff

2020 R.A. Chasey

Cuscuta pentagona Five angled dodder, Fiveangled dodder, Western field dodder

native
Annual herb, Vine (parasitic)

2016 Keir Morse

Cuscuta reflexa Giant dodder

• invasive non-native
Annual herb

2001 CDFA

Cuscuta salina Saltmarsh dodder

native
Annual herb, Vine (parasitic)

2021 Ron Vanderhoff

Cuscuta subinclusa Canyon dodder

native
Annual herb, Vine (parasitic)

2018 Ron Vanderhoff

2020 Ron Vanderhoff

2018 Ron Vanderhoff

Cuscuta suksdorfii Mountain dodder

native
Annual herb, Vine (parasitic)

2010 Dean Wm. Taylor, Ph.D.

2012 Barry Rice

Cuscuta umbellata Flatglobe dodder

non-native
Annual herb, Vine (parasitic)

Cuscuta veatchii Desert dodder

native
Annual herb, Vine (parasitic)

2020 Debra Valov

2015 Paul Preston

Cusickiella douglasii Alkali cusickiella, Alkali draba

native
Perennial herb

2009 Steve Matson

2008 Steve Matson

2009 Steve Matson

Cusickiella quadricostata Bodie hills cusickiella

• rare native
Perennial herb

2008 Steve Matson

2020 Matt Berger

Cyclachaena xanthiifolia Giant sumpweed

non-native
Annual herb

Cycladenia humilis Cycladenia, Lamb's horns, Sacramento waxydogbane

native
Perennial herb

2019 Belinda Lo

2022 Jane Cohn

2018 Matt Berger

Cycladenia humilis var. humilis Cycladenia, Sacramento waxydogbane

native
Perennial herb

2018 Joerg Lohse

2023 Ryan O'Dell

2018 Dee Shea Himes

Cycladenia humilis var. jonesii Jones' waxydogbane

native
Perennial herb

2016 Brian Smithers

Cycladenia humilis var. venusta Sacramento waxydogbane, Showy cycladenia

native
Perennial herb

2012 Don Davis

2004 Aaron Schusteff

2012 Don Davis

Cycloloma atriplicifolium Winged pigweed

non-native
Annual herb

2006 Dean Wm. Taylor, Ph.D.

2005 James M. Andre

Ciclospermum leptophyllum Marsh parsley

non-native
Annual herb

2021 Ron Vanderhoff

2023 Ron Vanderhoff

2017 Angelique Herman

Cyclospermum leptophyllum Marsh parsley

non-native
Annual herb

2021 Ron Vanderhoff

2023 Ron Vanderhoff

2017 Angelique Herman

Cydonia oblonga Quince

non-native
Tree, Shrub

2022 Ron Vanderhoff

2022 Mark Gary

Cylindropuntia acanthocarpa Buck horn cholla

native
Perennial herb (stem succulent)

2020 David Greenberger

2019 Steve Schoenig

2017 Thomas Egan

Opuntia acanthocarpa Buck horn cholla

native
Perennial herb (stem succulent)

2020 David Greenberger

2019 Steve Schoenig

2017 Thomas Egan

Cylindropuntia acanthocarpa var. coloradensis Buckhorn cholla

native
Perennial herb (stem succulent)

Cylindropuntia acanthocarpa var. coloradensis

2017 Thomas Egan

2018 Thomas Egan

Opuntia acanthocarpa var. coloradensis Buckhorn cholla

native
Perennial herb (stem succulent)

2017 Thomas Egan

2018 Thomas Egan

Cylindropuntia californica var. parkeri Cane or valley cholla

native
Perennial herb (stem succulent)

2023 Ron Vanderhoff

2022 Ron Vanderhoff

Cylindropuntia bigelovii Teddybear cholla

native
Shrub (stem succulent)

2023 Olga Batalov

2022 Scott Cox

2023 Julia Markey

Cylindropuntia bigelovii var. bigelovii Teddybear cholla

native
Shrub (stem succulent)

2023 Olga Batalov

2022 Scott Cox

2023 Julia Markey

Opuntia bigelovii Teddybear cholla

native
Shrub (stem succulent)

2023 Olga Batalov

2022 Scott Cox

2023 Julia Markey

Cylindropuntia californica California cholla

native
Perennial herb (stem succulent)

2010 Anna Bennett

2020 Diane Etchison

2020 Kimberly Coates

Cylindropuntia californica var. californica California pricklypear, Snake cholla

• rare native
Perennial herb (stem succulent)

Cylindropuntia californica var. californica

2009 Andrew Borcher

2013 Dale Ritenour

2010 Anna Bennett

Opuntia parryi var. serpentina California pricklypear, Snake cholla

• rare native
Perennial herb (stem succulent)

2009 Andrew Borcher

2013 Dale Ritenour

2010 Anna Bennett

Cylindropuntia chuckwallensis Chuckwalla cholla

native
Perennial herb (stem succulent)

2017 Carol Blaney

Cylindropuntia echinocarpa Silver cholla

native
Shrub (stem succulent)

2023 Catherine Chang

2019 Marisa Persaud

2019 Arch McCulloch

Opuntia echinocarpa Silver cholla

native
Shrub (stem succulent)

2023 Catherine Chang

2019 Marisa Persaud

2019 Arch McCulloch

Cylindropuntia fosbergii Pink teddy-bear cholla

• rare native
Perennial herb

2020 Ron Vanderhoff

Cylindropuntia ganderi Gander's buckhorn cholla

native
Perennial herb (stem succulent)

2021 Ron Vanderhoff

2020 Bonnie Nickel

2020 Linda Pardy

Cylindropuntia ganderi var. catavinensis Gander's buckhorn cholla

native
Perennial herb (stem succulent)

Cylindropuntia ganderi var. catavinensis

2021 Ron Vanderhoff

2020 Bonnie Nickel

2020 Linda Pardy

Cylindropuntia munzii Munz's cholla

• rare native
Perennial herb (stem succulent)

2021 Grigory Heaton

2011 Neal Kramer

2014 Zoya Akulova

Cylindropuntia prolifera Coastal cholla

native
Shrub (stem succulent)

2012 Keir Morse

2019 Dave Beller

2017 B.J. Dion

Cylindropuntia ramosissima Branched pencil cholla

native
Shrub (stem succulent)

2021 Ron Vanderhoff

2020 Michelle Cloud Hughes

2018 Diane Etchison

Opuntia ramosissima Branched pencil cholla

native
Shrub (stem succulent)

2021 Ron Vanderhoff

2020 Michelle Cloud Hughes

2018 Diane Etchison

Cylindropuntia wolfii Wolf's opuntia

• rare native
Shrub (stem succulent)

2023 Eric Koberle

2020 David Greenberger

Cymbalaria muralis Kenilworth ivy

non-native
Annual, Perennial herb

2022 David Wolfson

2017 James Bailey

2014 Toni Corelli

Cymbopogon citratus Lemon grass

non-native
Annual grass

Cymopterus aboriginum Indian parsnip, Indian springparsley

native
Perennial herb

2009 Steve Matson

2019 Matt Berger

Cymopterus cinerarius Gray springparsley, Gray's cymopterus

native
Perennial herb

2012 Steve Matson

2008 Steve Matson

Cymopterus corrugatus Wrinklewing springparsley

non-native
Perennial herb

Cymopterus deserticola Desert cymopterus, Desert springparsley

• rare native
Perennial herb

2020 Matt Berger

2013 Steve Matson

Cymopterus gilmanii Gilman's cymopterus, Gilman's springparsley

• rare native
Perennial herb

2005 Steve Matson

2017 Steve Matson

Cymopterus globosus Globe springparsley, Globose cymopterus

• rare native
Perennial herb

2020 Matt Berger

Mary Winter

Cymopterus multinervatus Arizona cymopterus, Purplenerve springparsley

• rare native
Perennial herb

2022 Jon Rebman

Cymopterus panamintensis var. acutifolius Panamint indian parsnip, Panamint springparsley

native
Perennial herb

Cymopterus panamintensis var. acutifolius

2019 Matt Berger

Cymopterus panamintensis var. panamintensis Panamint indian parsnip, Panamint springparsley

native
Perennial herb

Cymopterus panamintensis var. panamintensis

2020 David Greenberger

Cymopterus purpurascens Purple cymopterus, Widewing springparsley

native
Perennial herb

2018 Steve Matson

2019 Steve Matson

2016 Steve Matson

Cymopterus ripleyi Ripley's cymopterus, Ripley's springparsley

native
Perennial herb

2019 Matt Berger

Cymopterus ripleyi var. saniculoides Sanicle cymopterus

• rare native
Perennial herb

2019 Matt Berger

Cymopterus terebinthinus Turpentine cymopterus

native
Perennial herb

2015 Steve Matson

2011 Steve Matson

2019 Matt Berger

Pteryxia terebinthina var. terebinthina Turpentine cymopterus

native
Perennial herb

2015 Steve Matson

2011 Steve Matson

2019 Matt Berger

Cymopterus terebinthinus var. californicus Pteryxia, Turpentine cymopterus

native
Perennial herb

Cymopterus terebinthinus var. californicus

2005 Steve Matson

2006 Steve Matson

2012 Steve Matson

Cymopterus petraeus Rock cymopterus

native
Perennial herb

2022 Steve Matson

Cymopterus terebinthinus var. petraeus Rock cymopterus

native
Perennial herb

2022 Steve Matson

Cynara cardunculus Artichoke thistle, Cardoon

• invasive non-native
Perennial herb

2021 R.A. Chasey

2022 Ron Vanderhoff

Cynara cardunculus var. cardunculus Artichoke thistle, Cardoon

• invasive non-native
Perennial herb

2021 R.A. Chasey

2022 Ron Vanderhoff

Cynara cardunculus ssp. cardunculus Artichoke

non-native
Perennial herb

2019 Nathan Taxel

2016 Michele Hammond

Cynara scolymus Artichoke

non-native
Perennial herb

2019 Nathan Taxel

2016 Michele Hammond

Cynara cardunculus ssp. flavescens Cardoon

non-native
Perennial herb

2022 R.A. Chasey

2022 Ron Vanderhoff

Cynodon dactylon Bermuda grass, Bermudagrass

• invasive non-native
Perennial grass

2021 Ron Vanderhoff

2020 Ron Vanderhoff

2021 Ron Vanderhoff

Cynoglossum officinale Gypsyflower, Hound's tongue, Purple houndstongue

• invasive non-native
Perennial herb

2019 Raymond Gill

Cynosurus cristatus Crested dogstail grass, Crested dogtail grass

non-native
Perennial grass

2010 Zoya Akulova

2016 Zoya Akulova

Cynosurus echinatus Annual dogtail, Bristly dogstail grass, Dogtail grass

• invasive non-native
Annual grass

2017 Gary McDonald

2010 Julie A. Kierstead

2022 Ron Vanderhoff

Cyperus acuminatus Short pointed cyperus, Tapertip flatsedge

native
Annual grasslike herb

2003 Steve Matson

Cyperus bipartitus Slender flatsedge

native
Annual grasslike herb

2014 Gerald and Robert Carr

Cyperus difformis Variable flatsedge

non-native
Annual grasslike herb

2022 Ron Vanderhoff

2017 Ron Vanderhoff

2021 Donald Burk

Cyperus eragrostis Tall cyperus, Tall flatsedge

native
Perennial grasslike herb

2016 Joan Hampton

2021 Ken Lunders

2014 James Gonsman

Cyperus erythrorhizos Red rooted cyperus, Redroot flatsedge

native
Annual grasslike herb

2003 Steve Matson

2020 R.A. Chasey

2020 Ken Hickman

Cyperus esculentus Chufa flatsedge, Nut grass, Yellow nutgrass

native
Perennial grasslike herb

2020 Ron Vanderhoff

2015 Gerald Carr

2019 Ron Vanderhoff

Cyperus flavescens Yellow flatsedge

non-native
Annual grasslike herb

2021 Donald Burk

2022 Donald Burk

Cyperus fuscus Brown flatsedge

non-native
Annual grasslike herb

2007 Dr. Amadej Trnkoczy

Cyperus involucratus Umbrella plant, Unbrella plant

non-native
Perennial grasslike herb

2018 Rachelle Gray

2020 Martin Lemon

2018 Jennifer Mo

Cyperus iria Ricefield flatsedge

non-native
Annual grasslike herb

2003 Steve Matson

Cyperus laevigatus Smooth cyperus, Smooth flatsedge

native
Perennial grasslike herb

2019 Alexander Randolph-Lowe

2019 Belinda Lo

Cyperus niger Black cyperus, Black flatsedge, Brown cyperus

native
Perennial grasslike herb

2020 Ron Vanderhoff

2021 Ron Vanderhoff

Cyperus odoratus Fragrant flatsedge

native
Annual grasslike herb

2018 Ron Vanderhoff

2020 Jennifer Mo

2021 Ron Vanderhoff

Cyperus papyrus Papyrus

non-native
Perennial grasslike herb

2016 Ron Vanderhoff

2016 Barbara Boethling

2020 Ron Vanderhoff

Cyperus parishii Parish's flatsedge

native
Perennial grasslike herb

2009 Gary A. Monroe

Cyperus rotundus Nutgrass

• invasive non-native
Perennial grasslike herb

2016 Ron Vanderhoff

2019 Ron Vanderhoff

2018 Ron Vanderhoff

Cyperus squarrosus Awned cyperus, Bearded flatsedge, Umbrella sedge

native
Annual grasslike herb

2020 Robin Carter

2019 David popp

2015 Chris Jaster

Cyperus strigosus False nutsedge, False nutseed, Straw colored cyperus

native
Perennial grasslike herb

2022 Donald Burk

2008 Keir Morse

Cypripedium californicum California lady's slipper

• rare native
Perennial herb (rhizomatous)

2023 Mary Ann Machi

2017 Steve Matson

2018 Margarita Orlova

Cypripedium fasciculatum Clustered lady's slipper

• rare native
Perennial herb (rhizomatous)

2018 Timothy Boomer

2023 Bill Kress

2020 Shane Hanofee

Cypripedium montanum Mountain lady's slipper

• rare native
Perennial herb (rhizomatous)

2018 Timothy Boomer

2017 Julie Kierstead Nelson

Cypripedium parviflorum Lesser yellow lady's slipper

native
Perennial herb (rhizomatous)

2016 Adrienne Simmons

2012 Gary A. Monroe

Cypripedium parviflorum var. parviflorum Lesser yellow lady's slipper

native
Perennial herb (rhizomatous)

Cypripedium parviflorum var. parviflorum

2016 Adrienne Simmons

2012 Gary A. Monroe

Cypripedium parviflorum var. pubescens Lesser yellow lady's slipper

native
Perennial herb (rhizomatous)

2016 Adrienne Simmons

2012 Gary A. Monroe

Cypripedium parviflorum var. makasin Greater yellow lady's slipper

• rare native
Perennial herb (rhizomatous)

2012 Gary A. Monroe

Cypselea humifusa Panal

non-native
Annual herb

2021 R.A. Chasey

Cyrtomium falcatum Hollyfern, Japanese netvein hollyfern

non-native
Fern

2022 El Byrne

2021 Ron Vanderhoff

Cystopteris fragilis Bladder fern, Brittle bladder fern, Brittle fern

native
Fern

CYSTOPTERIDACEAE

2020 Bob Sweatt

2021 Mike Russler

2023 Ken-ichi Ueda

Cytisus multiflorus Spanish broom, White spanishbroom

• invasive non-native
Shrub

2020 Lenihan Mazur

Cytisus proliferus Tree lucerne

• invasive non-native
Shrub

2010 Justin M. Wood

Cytisus scoparius Scotch broom, Scotchbroom

• invasive non-native
Shrub

2016 Steve Matson

Cytisus scoparius ssp. scoparius Scotch broom, Scotchbroom

• invasive non-native
Shrub

2016 Steve Matson

Cytisus striatus Portuguese broom, Striated broom

• invasive non-native
Shrub

2019 Andy Jones

2021 Cynthia Powell

Dactylis glomerata Orchard grass, Orchardgrass

• invasive non-native
Perennial grass

2018 Jennifer Mo

2020 Jim Richards

2017 Gary McDonald

Dactylis glomerata ssp. hispanica Orchard grass, Orchardgrass

• invasive non-native
Perennial grass

2018 Jennifer Mo

2020 Jim Richards

2017 Gary McDonald

Dactyloctenium aegyptium Crows foot grass, Egyptian grass

non-native
Annual, Perennial grass

2014 Neal Kramer

2004 Debra Valov

Dalea formosa Featherplume

non-native
Perennial herb

Dalea greggii Gregg's prairie clover

non-native
Perennial herb

2017 Richard Spellenberg

Dalea mollis Hairy prairie clover, Silky dalea

native
Perennial herb

2023 Keir Morse

2019 Matt Berger

2023 Keir Morse

Dalea mollissima Downy dalea, Silky dalea, Soft prairie clover

native
Perennial herb

2022 Steve Matson

2023 Steve Matson

2022 Steve Matson

Dalea ornata Blue mountain prairie clover, Ornate dalea

• rare native
Perennial herb

1990 Gary A. Monroe

1985 Gary A. Monroe

Dalea searlsiae Searls' prairie clover

native
Perennial herb

2019 Steve Matson

Damasonium californicum California damsonium

native
Perennial herb (aquatic)

2018 Steve Matson

2019 Belinda Lo

2018 Steve Matson

Danthonia californica California oatgrass

native
Perennial grass

2020 Sara Timby

2007 Steve Matson

2002 Bart and Susan Eisenberg

Danthonia californica var. americana California oatgrass

native
Perennial grass

2020 Sara Timby

2007 Steve Matson

2002 Bart and Susan Eisenberg

Danthonia intermedia Timber oatgrass

native
Perennial grass

2019 David Greenberger

2010 Keir Morse

2007 Steve Matson

Danthonia intermedia ssp. intermedia Intermediate oat grass

native
Perennial grass

2020 Martin Purdy

2018 Susan McDougall

Danthonia unispicata One spiked oatgrass, Onespike danthonia, Onespike oatgrass

native
Perennial grass

2005 Steve Matson

2015 Neal Kramer

2005 Steve Matson

Darlingtonia californica California pitcherplant

• rare native
Perennial herb (carnivorous)

2023 Mary Ann Machi

2005 Steve Matson

Darmera peltata Indian rhubarb, Umbrella plant

native
Perennial herb

2016 Steve Matson

Peltiphyllum peltatum Indian rhubarb, Umbrella plant

native
Perennial herb

2016 Steve Matson

Dasiphora floribunda Shrubby cinquefoil

native
Shrub

2020 Bob Sweatt

2014 Steve Matson

Dasiphora fruticosa Shrubby cinquefoil

native
Shrub

2020 Bob Sweatt

2014 Steve Matson

Dasiphora fruticosa ssp. floribunda Shrubby cinquefoil

native
Shrub

2020 Bob Sweatt

2014 Steve Matson

Potentilla fruticosa Shrubby cinquefoil

native
Shrub

2020 Bob Sweatt

2014 Steve Matson

Dasyochloa pulchella Low woollygrass

native
Perennial grass

2022 Steve Matson

2021 Keir Morse

Erioneuron pulchellum Low woollygrass

native
Perennial grass

2022 Steve Matson

2021 Keir Morse

Datisca glomerata Durango root

native
Perennial herb

DATISCACEAE

2019 Ron Vanderhoff

2019 Diane Etchison

2019 Matt Berger

Datura discolor Desert thorn apple, Desert thornapple, Small datura

native
Annual herb

2022 Emily Sluiman

2023 Julia Markey

Datura ferox Chinese thornapple

non-native
Annual herb

2017 Ron Vanderhoff

2013 Beth Wurzburg

2011 Ramona Robison

Datura quercifolia Chinese thornapple

non-native
Annual herb

2017 Ron Vanderhoff

2013 Beth Wurzburg

2011 Ramona Robison

Datura metel Pricklyburr

• invasive non-native
Perennial herb

Geoff Burleigh

Nick Kurzenko

2007 Louis-M. Landry

Datura stramonium Jimson weed, Jimsonweed

non-native
Annual herb

2011 Steve Matson

2020 Ron Vanderhoff

Datura stramonium var. stramonium Jimson weed, Jimsonweed

non-native
Annual herb

2011 Steve Matson

2020 Ron Vanderhoff

Datura stramonium var. tatula Jimson weed, Jimsonweed

non-native
Annual herb

2011 Steve Matson

2020 Ron Vanderhoff

Datura wrightii Jimsonweed, Sacred thorn apple, Toluaca

native
Perennial herb

2017 Lisa Miller

2019 Ron Vanderhoff

2020 Mike McNamara

Daucus carota Queen Anne's lace, Wild carrot

• invasive non-native
Perennial herb

2023 Donald Burk

2021 Charles Russell

2021 Ken Lunders

Daucus carota ssp. carota Queen Anne's lace, Wild carrot

• invasive non-native
Perennial herb

2023 Donald Burk

2021 Charles Russell

2021 Ken Lunders

Daucus carota ssp. sativa Queen Anne's lace, Wild carrot

• invasive non-native
Perennial herb

2023 Donald Burk

2021 Charles Russell

2021 Ken Lunders

Daucus pusillus American wild carrot, Rattlesnake weed

native
Annual herb

2019 Diane Etchison

2022 David Wolfson

2021 Ken Lunders

Dedeckera eurekensis July gold

• rare native
Shrub

2022 Charles Russell

2020 Matt Berger

Deinandra arida Red rock tarplant

• rare native
Annual herb

2011 Keir Morse

2023 Aidan Marshall

2011 Keir Morse

Deinandra bacigalupii Livermore moonshine, Livermore tarplant

• rare native
Annual herb

2019 David Greenberger

2019 Steve Matson

Deinandra clementina Island tarplant

• rare native
Shrub

2018 Ron Vanderhoff

2011 Dylan Neubauer

2012 Gary A. Monroe

Deinandra conjugens Otay tarplant

• rare native
Annual herb

2001 Coralie Cobb

2010 Anna Bennett

Deinandra corymbosa Coastal tarweed

native
Annual herb

2016 Michael Mitchell

2018 Zachariah Jordan

2015 Tim Miller

Deinandra corymbosa ssp. corymbosa Coastal tarweed

native
Annual herb

2016 Michael Mitchell

2018 Zachariah Jordan

2015 Tim Miller

Hemizonia corymbosa Coastal tarweed

native
Annual herb

2016 Michael Mitchell

2018 Zachariah Jordan

2015 Tim Miller

Deinandra fasciculata Clustered tarweed

native
Annual herb

2022 David Strauch

2017 Steve Matson

Hemizonia fasciculata Clustered tarweed

native
Annual herb

2022 David Strauch

2017 Steve Matson

Deinandra floribunda Tecate tarplant

• rare native
Annual herb

2023 Jim Merzbacher

2010 Andrew Borcher

Deinandra halliana Hall's tarplant

• rare native
Annual herb

2023 R.A. Chasey

Deinandra increscens ssp. increscens Grassland tarweed

native
Annual herb

2011 George Williams

2003 Lynn Watson

Deinandra increscens ssp. villosa Gaviota tarplant

• rare native
Annual herb

2019 Zack Abbey

2011 Zoya Akulova

2002 Kevin Merk

Deinandra kelloggii Kellogg's tarweed

native
Annual herb

2021 Mike Russler

2023 R.A. Chasey

2021 Mike Russler

Deinandra lobbii Threeray tarweed

native
Annual herb

2022 Ken-ichi Ueda

2021 John Game

Deinandra minthornii Santa susana tarplant

• rare native
Shrub

2022 Suzanne L. Weakley

2007 Hartmut Wisch

Geoff Burleigh

Hemizonia minthornii Santa susana tarplant

• rare native
Shrub

2022 Suzanne L. Weakley

2007 Hartmut Wisch

Geoff Burleigh

Deinandra mohavensis Mojave tarplant

• rare native
Annual herb

2022 Mike Russler

2021 Ron Vanderhoff

Hemizonia mohavensis Mojave tarplant

• rare native
Annual herb

2022 Mike Russler

2021 Ron Vanderhoff

Deinandra pallida Kern tarweed

native
Annual herb

2019 Diane Etchison

2021 Mike Russler

2010 Neal Kramer

Deinandra paniculata Paniculate tarplant, San Diego tarweed

• rare native
Annual herb

2017 Ron Vanderhoff

2019 Ron Vanderhoff

Deinandra pentactis Salinas river tarweed

native
Annual herb

2015 Richard Spellenberg

2023 Ryan O'Dell

Delairea odorata Cape ivy

• invasive non-native
Perennial herb

2019 Ron Vanderhoff

Delosperma litorale Ice plant, Seaside delosperma

non-native
Shrub (stem succulent)

2017 Ron Vanderhoff

2018 Ron Vanderhoff

Delphinium andersonii Anderson larkspur, Anderson's larkspur

native
Perennial herb

2008 Steve Matson

2007 Steve Matson

2008 Steve Matson

Delphinium menziesii Anderson larkspur, Anderson's larkspur

native
Perennial herb

2008 Steve Matson

2007 Steve Matson

2008 Steve Matson

Delphinium antoninum Anthony peak larkspur, Tracy's larkspur

native
Perennial herb

2022 Dana York

Delphinium bakeri Baker's delphinium, Baker's larkspur

• rare native
Perennial herb

2019 Hunter Breck

2021 R.A. Chasey

Delphinium californicum California larkspur, Coast larkspur

native
Perennial herb

2019 Stacie Wolny

2017 David Greenberger

2019 Sue Graue

Delphinium californicum ssp. californicum California larkspur

native
Perennial herb

Delphinium californicum ssp. californicum

2010 Toni Corelli

2022 R.A. Chasey

Delphinium californicum ssp. interius California larkspur, Coastal larkspur, Hospital canyon larkspur

• rare native
Perennial herb

2017 David Ogden

2017 David Greenberger

2017 David Ogden

Delphinium cardinale Scarlet larkspur

native
Perennial herb

Geoff Burleigh

2021 Colin Barrows

2018 Mike Libby

Delphinium decorum Coast larkspur, Coastal larkspur, Larkspur

native
Perennial herb

2024 Mary Ann Machi

2021 Mary Ann Machi

Delphinium decorum ssp. decorum Coastal larkspur

native
Perennial herb

2017 Steve Matson

Delphinium decorum ssp. tracyi Coastal larkspur, Tracy's larkspur

native
Perennial herb

2021 Steve Matson

Delphinium depauperatum Dwarf larkspur, Few flowered larkspur, Slim larkspur

native
Perennial herb

2022 Mike Russler

2023 Dana York

2022 Mike Russler

Delphinium glaucum Glaucus larkspur, Sierra larkspur

native
Perennial herb

2020 Bob Sweatt

2018 Bill Haley

Delphinium scopulorum Glaucus larkspur, Sierra larkspur

native
Perennial herb

2020 Bob Sweatt

2018 Bill Haley

Delphinium gracilentum Meadow larkspur, Pine forest larkspur, Slender or Greene's Larkspur

native
Perennial herb

2013 BOB CASE

2019 David Greenberger

2021 Dana York

Delphinium gypsophilum Gypsum loving larkspur, Pinoche creek larkspur

native
Perennial herb

2016 Steve Matson

Delphinium gypsophilum ssp. parviflorum Pinoche creek larkspur, Small flowered gypsum loving larkspur

• rare native
Perennial herb

Beatrice F. Howitt1999 California Academy of Sciences

2005 Christopher L. Christie (Delphinium gypsophilum)

Delphinium hansenii Eldorado larkspur, Hansen's larkspur

native
Perennial herb

2022 Steve Matson

2014 Steve Matson

Delphinium hansenii ssp. ewanianum Ewan's larkspur

• rare native
Perennial herb

2022 Steve Matson

Delphinium hansenii ssp. hansenii Eldorado larkspur, Hansen's larkspur

native
Perennial herb

2021 Mike Russler

2021 David Gowen

2021 Mike Russler

Delphinium hansenii ssp. kernense Kern larkspur

native
Perennial herb

2014 Steve Matson

Delphinium hesperium Foothill larkspur, Western larkspur

native
Perennial herb

2022 R.A. Chasey

2020 Fred Melgert / Carla Hoegen

Delphinium hesperium ssp. hesperium Foothill larkspur, Western larkspur

native
Perennial herb

2018 Steve Matson

2016 Andrew Longman

Delphinium hesperium ssp. pallescens Foothill larkspur, Pale western larkspur, Western larkspur

native
Perennial herb

2022 R.A. Chasey

2018 Gary McDonald

2022 Charles Russell

Delphinium hutchinsoniae Hutchinson's larkspur, Monterey larkspur

• rare native
Perennial herb

2022 Mary Conway

2005 Aaron Schusteff

Delphinium inopinum Unexpected larkspur

• rare native
Perennial herb

Geoff Burleigh

2013 Alison Sheehey

Geoff Burleigh

Delphinium luteum Yellow larkspur

• rare native
Perennial herb

2016 Hunter Breck

2022 Hunter Breck

2013 Debra L. Cook

Delphinium nudicaule Canyon larkspur, Red or Orange Larkspur, Red larkspur

native
Perennial herb

2006 Steve Matson

2024 Mary Ann Machi

Delphinium nuttallianum Low larkspur, Meadow larkspur, Dwarf, Meadow, Slim or Sonne's Larkspur

native
Perennial herb

2017 Steve Matson

Delphinium nuttallianum var. nuttallianum Low larkspur, Meadow larkspur, Dwarf, Meadow, Slim or Sonne's Larkspur

native
Perennial herb

Delphinium nuttallianum var. nuttallianum

2017 Steve Matson

Delphinium parishii Desert larkspur, Parish's larkspur

native
Perennial herb

2008 Steve Matson

2017 Steve Matson

Delphinium parishii var. parishii Desert larkspur, Parish's larkspur

native
Perennial herb

2008 Steve Matson

2017 Steve Matson

Delphinium parishii ssp. pallidum Pale parish's larkspur, Pallid larkspur

native
Perennial herb

2019 Angelique Herman

2003 Lynn Watson

2003 Hartmut Wisch

Delphinium parishii ssp. parishii Parish's larkspur

native
Perennial herb

2008 Steve Matson

2017 Steve Matson

Delphinium parishii ssp. subglobosum Intermediate larkspur, Oceanblue larkspur

• rare native
Perennial herb

2010 Belinda Lo

2015 John Doyen

Delphinium parryi San bernardino larkspur

native
Perennial herb

2019 Diane Etchison

Geoff Burleigh

2019 Diane Etchison

Delphinium parryi ssp. blochmanniae San bernardino larkspur

native
Perennial herb

2019 Diane Etchison

Geoff Burleigh

2019 Diane Etchison

Delphinium parryi ssp. blochmaniae Blochman's larkspur, Dune larkspur

• rare native
Perennial herb

Geoff Burleigh

Delphinium parryi ssp. eastwoodiae Eastwood's larkspur

• rare native
Perennial herb

2023 Mike Russler

Delphinium parryi ssp. maritimum Seaside larkspur

native
Perennial herb

2014 Steve Matson

Delphinium parryi ssp. parryi Parry's larkspur, San bernardino larkspur

native
Perennial herb

2022 Mike Russler

2021 R.A. Chasey

2013 James Gonsman

Delphinium parryi ssp. purpureum Mt. pinos larkspur, San bernardino larkspur

• rare native
Perennial herb

2018 Douglas Gordon-Blackwood

2008 Dr. Lloyd G. Simpson

Delphinium patens Spreading larkspur, Zigzag larkspur

native
Perennial herb

2018 James Gonsman

2020 Amy Rapport

2022 Mary Conway

Delphinium patens ssp.. patens Spreading larkspur, Zigzag larkspur

native
Perennial herb

2018 James Gonsman

2020 Amy Rapport

2022 Mary Conway

Delphinium patens ssp. hepaticoideum Spreading larkspur, Zigzag larkspur

native
Perennial herb

2007 K Suri

2021 Arlee Montalvo

2020 Ron Vanderhoff

Delphinium patens ssp. montanum Spreading larkspur, Zigzag larkspur

native
Perennial herb

2003 Christopher L. Christie

2003 Yulan Tong

2003 Christopher L. Christie

Delphinium patens ssp. patens Spreading larkspur, Zigzag larkspur

native
Perennial herb

2014 Michael Mitchell

2022 Mary Conway

Delphinium polycladon Mountain marsh larkspur

native
Perennial herb

2012 Steve Matson

Delphinium purpusii Kern county larkspur

• rare native
Perennial herb

2019 Matt Berger

2023 Bob Steele

2021 Mike Russler

Delphinium recurvatum Byron larkspur, Recurved larkspur

• rare native
Perennial herb

2023 Christopher Collier

2019 Diane Etchison

2023 Christopher Collier

Delphinium scaposum Tall mountain larkspur

• rare native
Perennial herb

2010 Lee Dittmann

2012 James M. Andre

Delphinium stachydeum Spiked larkspur

• rare native
Perennial herb

2009 F. Gauna

Delphinium trolliifolium Columbian larkspur, Cow poison

native
Perennial herb

2023 Dennis ONeill

2010 Aaron Arthur

2005 Jerry Murray

Delphinium uliginosum Swamp larkspur

• rare native
Perennial herb

2021 Charles Russell

Delphinium umbraculorum Umbrella larkspur

• rare native
Perennial herb

2015 George Butterworth

2012 Zack Abbey

2016 Amelia Ryan

Delphinium variegatum Royal larkspur

native
Perennial herb

2009 BOB CASE

2021 Robin Carter

2023 R.A. Chasey

Delphinium variegatum ssp. ? Royal larkspur

native
Perennial herb

2009 BOB CASE

2021 Robin Carter

2023 R.A. Chasey

Delphinium variegatum var. kinkiense Royal larkspur

native
Perennial herb

2009 BOB CASE

2021 Robin Carter

2023 R.A. Chasey

Delphinium variegatum ssp. kinkiense Royal larkspur, San clemente island larkspur

• rare native
Perennial herb

2011 Dylan Neubauer

Delphinium variegatum ssp. thornei Thorne's royal larkspur

• rare native
Perennial herb

2008 Kim M. Klementowski

Delphinium variegatum ssp. variegatum Royal larkspur

native
Perennial herb

2023 Hunter Breck

2022 Mike Russler

Dendroalsia abietina Dendroalsia moss

native
Moss

CRYPHAEACEAE

2022 Amanda Heinrich

2006 Richard Spjut

Dendromecon harfordii Island bush poppy, Channel Islands tree poppy, Harford's tree poppy

native
Shrub

2014 Steve Matson

2019 Aaron Echols

2014 Steve Matson

Dendromecon harfordii var. harfordii Channel island tree poppy

• rare native
Shrub

2018 Susan McDougall

Dendromecon harfordii var. rhamnoides Island tree poppy, Tree poppy

• rare native
Shrub

1993 Dean Wm. Taylor

Dendromecon rigida Bush poppy, Tree poppy

native
Shrub

2019 Eliezer Margolis

2018 Hunter Breck

2010 Suzanne L. Weakley

Deschampsia cespitosa California hairgrass, Tufted hair grass, Tufted hairgrass

native
Perennial grass

2022 Justin Luong

2022 Dianne Lake

Deschampsia cespitosa ssp. cespitosa Tufted hair grass, Tufted hairgrass

native
Perennial grass

2007 Keir Morse

2019 David Greenberger

2023 Dianne Lake

Deschampsia cespitosa ssp. holciformis California hairgrass, Coastal tufted hair grass, Tufted hairgrass

native
Perennial grass

2023 Dianne Lake

2021 John Rawlings

2022 Dianne Lake

Deschampsia danthonioides Annual hairgrass

native
Annual grass

2019 Paul Aigner

2003 Steve Matson

2018 Emily Allen

Deschampsia elongata Hairgrass, Slender hairgrass

native
Perennial grass

2021 John Rawlings

2023 Robert Steers

Descurainia californica Sierra tansy mustard, Sierra tansymustard

native
Perennial herb

2012 Steve Matson

1999 Larry Blakely

Descurainia incana Mountain tansy mustard, Mountain tansymustard, Soft mountain tansy mustard

native
Perennial herb

2020 Bob Sweatt

2004 Steve Matson

2014 Debra L. Cook

Descurainia richardsonii Mountain tansy mustard, Mountain tansymustard, Soft mountain tansy mustard

native
Perennial herb

2020 Bob Sweatt

2004 Steve Matson

2014 Debra L. Cook

Descurainia incisa ssp. incisa Mountain tansy mustard

native
Annual, Biennial herb

2018 Susan McDougall

Descurainia incisa var. incisa Mountain tansy mustard

native
Annual, Biennial herb

2018 Susan McDougall

Descurainia longipedicellata

native
Annual herb

2010 Gerald Carr

2022 Alaine Arslan

2010 Gerald Carr

Descurainia pinnata Western tansy mustard, Western tansymustard, Yellow tansy mustard

native
Annual herb

2018 Nancy Hamlett

2022 Steve Matson

Descurainia pinnata ssp. brachycarpa Western tansymustard

native
Annual herb

2011 Gerald D. Carr

Descurainia pinnata ssp. glabra Smooth western tansy mustard, Western tansymustard, Yellow tansy mustard

native
Annual herb

2022 Mike Russler

Descurainia pinnata var. glabra Smooth western tansy mustard, Western tansymustard, Yellow tansy mustard

native
Annual herb

2022 Mike Russler

Descurainia sophia Flix weed, Herb sophia

• invasive non-native
Annual herb

2014 Steve Matson

2021 R.A. Chasey

2014 Steve Matson

Desmazeria rigida Ferngrass, Hard bluegrass

non-native
Annual grass

2020 Jennifer Mo

2018 Ron Vanderhoff

2017 Neal Kramer

Dianthus armeria Deptford pink

non-native
Annual, Biennial herb

2019 Bob Sweatt

2020 Bob Sweatt

Dianthus armeria ssp. armeria Grass pink

non-native
Annual, Biennial herb

2022 Mike Russler

Dianthus barbatus Sweetwilliam

non-native
Perennial herb

2022 MCOSD EDRR

2005 Louis-M. Landry

2007 Dr. Amadej Trnkoczy

Dianthus deltoides Meadow pink

non-native
Perennial herb

2005 Louis-M. Landry

2016 John Doyen

2017 Barry Rice

Velezia rigida

non-native
Annual herb

2020 Ken Hickman

Dianthus plumarius Feathered pink

non-native
Perennial herb

2007 Louis-M. Landry

Dicentra formosa Pacific bleeding heart, Pacific bleedinghearts

native
Perennial herb

2005 Steve Matson

Dicentra formosa ssp. oregona Pacific bleeding heart, Pacific bleedinghearts

native
Perennial herb

2005 Steve Matson

Dicentra formosa ssp.formosa 1 Pacific bleeding heart, Pacific bleedinghearts

native
Perennial herb

2005 Steve Matson

Dicentra formosa ssp. formosa Pacific bleeding heart

native
Perennial herb

2019 Ken Hickman

2020 Robert Langellier

2019 Timothy Boomer

Dicentra formosa ssp. oregana Oregon bleeding heart

• rare native
Perennial herb

2020 Susan McDougall

2022 Ryan O'Dell

Dicentra nevadensis Sierra bleeding heart, Tulare county bleeding heart

• rare native
Perennial herb (rhizomatous)

2018 Steve Matson

Dicentra pauciflora Few flowered bleeding heart, Shorthorn steer's head

native
Perennial herb

2011 Steve Matson

2019 Timothy Boomer

Dicentra uniflora Longhorn steer's head, Steer's head, Steers head

native
Perennial herb

2019 Timothy Boomer WildMacro.com

2004 Steve Matson

Dichelostemma capitatum ssp. capitatum Blue dicks, Wild hyacinth

native
Perennial herb

2017 Alison Sheehey

Geoff Burleigh

2015 Ken Lunders

Dichelostemma congestum Fork toothed ookow, Ookow

native
Perennial herb

2017 Gary Morgret

2019 Suzanne L. Weakley

2023 Teal Derrer

Dichelostemma ida-maia Firecracker brodiaea, Firecracker flower

native
Perennial herb

2008 Steve Matson

2023 Melissa Harbert

2019 Steve Laymon

Dichelostemma multiflorum Many flowered brodiaea, Manyflower brodiaea, Roundtooth snakelily

native
Perennial herb

2019 David popp

2011 Steve Matson

2019 John Rawlings

Brodiaea californica Twining brodiaea, Twining snakelily

native
Perennial herb

2008 Steve Matson

2019 Verna Jigour

2018 Tim Lewis

Dichelostemma volubile Twining brodiaea, Twining snakelily

native
Perennial herb

2008 Steve Matson

2019 Verna Jigour

2018 Tim Lewis

Dichondra donelliana California ponysfoot, Dichondra

native
Perennial herb, Vine

2019 Ken Hickman

2012 Terrence Gosliner

Dichondra micrantha Asian ponysfoot

non-native
Perennial herb

2023 Ron Vanderhoff

2012 Dean Wm. Taylor, Ph.D.

Dichondra repens Asian ponysfoot

non-native
Perennial herb

2023 Ron Vanderhoff

2012 Dean Wm. Taylor, Ph.D.

Dichondra occidentalis Western dichondra, Western ponysfoot

• rare native
Perennial herb (rhizomatous)

2023 James Bailey

2023 Ron Vanderhoff

Dicoria canescens Desert dicoria, Desert twinbugs

native
Annual herb

2020 Don M. Davis

2020 Angelique Herman

Cordylanthus orcuttianus Orcutt's bird's-beak

• rare native
Annual herb

2020 Debra Valov

Dicranostegia orcuttiana Orcutt's bird's-beak

• rare native
Annual herb

2020 Debra Valov

Dicranoweisia cirrata Dicranoweisia moss

native
Moss

DICRANACEAE

2023 Diana Wahl

2021 Diana Wahl

Didymodon norrisii Norris' beard moss

native
Moss

2013 Scot Loring

Didymodon vinealis Didymodon moss

native
Moss

2015 Neil Uelman

2022 John Game

Dieteria asteroides var. asteroides Hoary aster

native
Perennial herb

2013 Richard Spellenberg

2014 John Doyen

Dieteria asteroides var. lagunensis Mount laguna aster

• rare native
Perennial herb

2016 Keir Morse

Dieteria canescens Hoary aster

native
Perennial herb

2008 Steve Matson

2019 Steve Matson

Dieteria canescens var. aristata Hoary aster

native
Perennial herb

2008 Steve Matson

2019 Steve Matson

Dieteria canescens var. glabra Hoary aster

native
Perennial herb

2008 Steve Matson

2019 Steve Matson

Machaeranthera canescens Hoary aster

native
Perennial herb

2008 Steve Matson

2019 Steve Matson

Machaeranthera canescens var. ambigua Hoary aster

native
Perennial herb

2008 Steve Matson

2019 Steve Matson

Dieteria canescens var. canescens Hoary aster

native
Perennial herb

2005 Steve Matson

Machaeranthera canescens var. canescens Hoary aster

native
Perennial herb

2005 Steve Matson

Dieteria canescens var. leucanthemifolia Hoary aster

native
Perennial herb

Dieteria canescens var. leucanthemifolia

2008 Steve Matson

2019 Steve Matson

Machaeranthera canescens var. leucanthemifolia Hoary aster

native
Perennial herb

Machaeranthera canescens var. leucanthemifolia

2008 Steve Matson

2019 Steve Matson

Dieteria canescens var. shastensis Shasta aster

native
Perennial herb

2019 David Greenberger

2020 R.A. Chasey

2023 Ryan O'Dell

Machaeranthera canescens var. shastensis Shasta aster

native
Perennial herb

Machaeranthera canescens var. shastensis

2019 David Greenberger

2020 R.A. Chasey

2023 Ryan O'Dell

Dieteria canescens var. ziegleri Ziegler's aster

• rare native
Perennial herb

2006 J. Zylstra, SBNF

Digitalis purpurea Purple foxglove

• invasive non-native
Perennial herb

2016 Steve Matson

Digitaria californica Arizona cottontop

native
Perennial grass

2011 Keir Morse

Digitaria californica var. californica Arizona cottontop

• rare native
Perennial grass

2011 Keir Morse

Digitaria ischaemum Smooth crabgrass

non-native
Annual grass

2006 Dean Wm. Taylor, Ph.D.

2006 Steve Matson

Digitaria sanguinalis Hairy crabgrass

non-native
Annual grass

2022 Ron Vanderhoff

2019 Jennifer Mo

Dimeresia howellii Doublet

• rare native
Annual herb

2022 Jordan Collins

2006 Steve Matson

Dimorphotheca ecklonis Blue & white daisybush

non-native
Perennial herb

2019 Dean Taylor

2018 David Wolfson

2020 Nathan Taxel

Osteospermum ecklonis Blue & white daisybush

non-native
Perennial herb

2019 Dean Taylor

2018 David Wolfson

2020 Nathan Taxel

Osteospermum fruticosum Trailing african daisy

non-native
Perennial herb

2018 Ron Vanderhoff

Dimorphotheca sinuata African daisy, Cape marigold, Glandular cape marigold

• invasive non-native
Annual herb

2021 Diana Wahl

2022 Oliver Brewer

2017 Keir Morse

Diodia teres Poorjoe, Rough buttonweed

native
Annual herb

2016 Keir Morse

Diodia virginiana Virginia buttonweed

non-native
Annual herb

Diospyros digyna Black sapote

non-native
Tree

Diospyros kaki Japanese persimmon

non-native
Tree

Diospyros lotus Date plum

non-native
Tree

Diospyros virginiana Common persimmon

non-native
Tree

Jo-Ann Ordano2004 California Academy of Sciences

2016 Zoya Akulova

Mimulus angustatus Narrow leaved pansy monkeyflower

native
Annual herb

2019 David Greenberger

2019 Matt Berger

2016 Steve Matson

Mimulus aurantiacus var. aridus Low bush monkeyflower

• rare native
Shrub

2012 Duncan S. Bell

Diplacus aurantiacus Orange Bush Monkeyflower

native
Shrub

2023 Bill Kress

2019 Stacie Wolny

2019 Gary McDonald

Diplacus aurantiacus var. grandiflorus Orange Bush Monkeyflower

native
Shrub

2023 Bill Kress

2019 Stacie Wolny

2019 Gary McDonald

Diplacus aurantiacus var. pubescens Orange Bush Monkeyflower

native
Shrub

2023 Bill Kress

2019 Stacie Wolny

2019 Gary McDonald

Diplacus aurantiacus var. puniceus Orange Bush Monkeyflower

native
Shrub

2023 Bill Kress

2019 Stacie Wolny

2019 Gary McDonald

Diplacus lompocensis Orange Bush Monkeyflower

native
Shrub

2023 Bill Kress

2019 Stacie Wolny

2019 Gary McDonald

Mimulus aurantiacus Orange Bush Monkeyflower

native
Shrub

2023 Bill Kress

2019 Stacie Wolny

2019 Gary McDonald

Mimulus aurantiacus var. aurantiacus Orange Bush Monkeyflower

native
Shrub

2023 Bill Kress

2019 Stacie Wolny

2019 Gary McDonald

Diplacus bicolor Harlequin monkeyflower

native
Annual herb

2017 Alison Sheehey

2011 Jeffrey Hapeman

2018 Julia Gardner Harencar

Mimulus whitneyi Harlequin monkeyflower

native
Annual herb

2017 Alison Sheehey

2011 Jeffrey Hapeman

2018 Julia Gardner Harencar

Diplacus bigelovii Bigelow mimulus

native
Annual herb

2020 David Greenberger

2022 Scott Cox

2017 Dan Fillipi

Mimulus bigelovii Bigelow mimulus

native
Annual herb

2020 David Greenberger

2022 Scott Cox

2017 Dan Fillipi

Mimulus bigelovii var. bigelovii Bigelow's monkeyflower

native
Annual herb

2023 Emily Sluiman

2019 Paul Hankamp

2019 Matt Berger

Diplacus bigelovii var. cuspidatus Bigelow's monkeyflower

native
Annual herb

2023 Bob Steele

2019 Steve Matson

2016 Steve Matson

Mimulus bigelovii var. cuspidatus Bigelow's monkeyflower

native
Annual herb

2023 Bob Steele

2019 Steve Matson

2016 Steve Matson

Diplacus bolanderi Bolander's monkeyflower

native
Annual herb

2022 Mike Russler

2023 Mike Russler

Mimulus bolanderi Bolander's monkeyflower

native
Annual herb

2022 Mike Russler

2023 Mike Russler

Diplacus brevipes Wide throated yellow monkeyflower

native
Annual herb

2019 Rebecca E. Crowe

2013 Keir Morse

2020 Ron Vanderhoff

Mimulus brevipes Wide throated yellow monkeyflower

native
Annual herb

2019 Rebecca E. Crowe

2013 Keir Morse

2020 Ron Vanderhoff

Diplacus clevelandii Cleveland's bush monkeyflower

• rare native
Perennial herb

2020 Diane Etchison

2019 Ron Vanderhoff

2022 Aaron Echols

Mimulus clevelandii Cleveland's bush monkeyflower

• rare native
Perennial herb

2020 Diane Etchison

2019 Ron Vanderhoff

2022 Aaron Echols

Diplacus compactus Viscid monkeyflower

native
Annual herb

2021 Mike Russler

Mimulus viscidus var. compactus Viscid monkeyflower

native
Annual herb

2021 Mike Russler

Diplacus congdonii Congdon's monkeyflower

native
Annual herb

2024 Mike Russler

2006 Steve Matson

2024 Mike Russler

Mimulus congdonii Congdon's monkeyflower

native
Annual herb

2024 Mike Russler

2006 Steve Matson

2024 Mike Russler

Diplacus constrictus Dense fruited monkeyflower

native
Annual herb

2020 Bryant Baker

2019 Richard Spjut

2014 Debra L. Cook

Mimulus constrictus Dense fruited monkeyflower

native
Annual herb

2020 Bryant Baker

2019 Richard Spjut

2014 Debra L. Cook

Diplacus douglasii Purple mouse ears

native
Annual herb

2023 Timothy Boomer

Mimulus douglasii Purple mouse ears

native
Annual herb

2023 Timothy Boomer

Mimulus fremontii Fremont's monkeyflower

native
Annual herb

2019 David Greenberger

2019 Matt Berger

Mimulus fremontii var. fremontii Fremont's monkeyflower

native
Annual herb

2019 David Greenberger

2019 Matt Berger

Diplacus grandiflorus Sticky monkeyflower

native
Shrub

2021 Melissa Harbert

2018 David popp

2018 Adam Chasey

Mimulus aurantiacus var. grandiflorus Sticky monkeyflower

native
Shrub

2021 Melissa Harbert

2018 David popp

2018 Adam Chasey

Mimulus bifidus Sticky monkeyflower

native
Shrub

2021 Melissa Harbert

2018 David popp

2018 Adam Chasey

Diplacus jepsonii Jepson's monkeyflower

native
Annual herb

2019 Matt Berger

Mimulus jepsonii Jepson's monkeyflower

native
Annual herb

2019 Matt Berger

Mimulus nanus var. jepsonii Jepson's monkeyflower

native
Annual herb

2019 Matt Berger

Mimulus johnstonii Johnston's monkeyflower

• rare native
Annual herb

2019 Matt Berger

2017 Keir Morse

Diplacus kelloggii Kellogg's monkeyflower

native
Annual herb

2016 Steve Matson

2005 Steve Matson

2016 Steve Matson

Mimulus kelloggii Kellogg's monkeyflower

native
Annual herb

2016 Steve Matson

2005 Steve Matson

2016 Steve Matson

Diplacus layneae Layne's monkeyflower

native
Annual herb

2019 Steve Laymon

2021 Mike Russler

2022 Mike Russler

Mimulus layneae Layne's monkeyflower

native
Annual herb

2019 Steve Laymon

2021 Mike Russler

2022 Mike Russler

Diplacus leptaleus Least flowered monkeyflower

native
Annual herb

2017 John Doyen

2019 Matt Berger

2020 Bob Sweatt

Mimulus leptaleus Least flowered monkeyflower

native
Annual herb

2017 John Doyen

2019 Matt Berger

2020 Bob Sweatt

Diplacus longiflorus southern bush monkeyflower

native
Shrub

2021 Keir Morse

2014 Steve Matson

2021 Keir Morse

Mimulus aurantiacus var. pubescens southern bush monkeyflower

native
Shrub

2021 Keir Morse

2014 Steve Matson

2021 Keir Morse

Diplacus mephiticus Skunky monkeyflower

native
Annual herb

2023 Bob Steele

2021 Steve Laymon

2020 Steve Matson

Mimulus mephiticus Skunky monkeyflower

native
Annual herb

2023 Bob Steele

2021 Steve Laymon

2020 Steve Matson

Mimulus nanus var. mephiticus Skunky monkeyflower

native
Annual herb

2023 Bob Steele

2021 Steve Laymon

2020 Steve Matson

Mimulus mohavensis Mojave monkeyflower

• rare native
Annual herb

2023 John Doyen

2019 John L. Thompson

2020 Joey Santore

Diplacus nanus Dwarf monkeyflower, Dwarf monkey flower

native
Annual herb

2020 Bob Sweatt

2020 Cynthia Powell

Mimulus nanus Dwarf monkeyflower, Dwarf monkey flower

native
Annual herb

2020 Bob Sweatt

2020 Cynthia Powell

Mimulus nanus ssp. nanus Dwarf monkeyflower, Dwarf monkey flower

native
Annual herb

2020 Bob Sweatt

2020 Cynthia Powell

Mimulus nanus var. nanus Dwarf monkeyflower, Dwarf monkey flower

native
Annual herb

2020 Bob Sweatt

2020 Cynthia Powell

Mimulus parryi Parry's monkeyflower

• rare native
Annual herb

2019 Matt Berger

2022 Steve Matson

Diplacus parviflorus

• rare native
Annual herb

2014 Steve Matson

Mimulus aurantiacus var. parviflorus

• rare native
Annual herb

2014 Steve Matson

Diplacus pictus calico monkeyflower

• rare native
Annual herb

2020 Matt Berger

2023 Mike Russler

2020 Matt Berger

Mimulus pictus calico monkeyflower

• rare native
Annual herb

2020 Matt Berger

2023 Mike Russler

2020 Matt Berger

Diplacus pulchellus yellow-lip pansy monkeyflower

• rare native
Annual herb

2023 Karen Swift

2021 Mike Russler

2016 Judy and Barry Breckling

Mimulus pulchellus yellow-lip pansy monkeyflower

• rare native
Annual herb

2023 Karen Swift

2021 Mike Russler

2016 Judy and Barry Breckling

Diplacus puniceus Sticky monkey flower

native
Shrub

2011 Keir Morse

2013 Keir Morse

2011 Keir Morse

Mimulus aurantiacus var. puniceus Sticky monkey flower

native
Shrub

2011 Keir Morse

2013 Keir Morse

2011 Keir Morse

Mimulus pygmaeus Egg Lake monkeyflower

• rare native
Annual herb

James T. Vale and CNPS

2001 Steve Schoenig

2006 Dean Wm. Taylor

Diplacus rattanii Rattan's monkeyflower

native
Annual herb

2019 Ron Vanderhoff

Diplacus rattanii ssp. decurtatus Rattan's monkeyflower

native
Annual herb

2019 Ron Vanderhoff

Mimulus rattanii Rattan's monkeyflower

native
Annual herb

2019 Ron Vanderhoff

Diplacus rupicola Death Valley monkeyflower

• rare native
Perennial herb

2016 Steve Matson

2020 Matt Berger

2024 Madeleine Claire

Mimulus rupicola Death Valley monkeyflower

• rare native
Perennial herb

2016 Steve Matson

2020 Matt Berger

2024 Madeleine Claire

Diplacus torreyi Torrey's monkeyflower

native
Annual herb

2005 Steve Matson

Mimulus torreyi Torrey's monkeyflower

native
Annual herb

2005 Steve Matson

Diplacus tricolor Tricolor monkeyflower

native
Annual herb

2020 Matt Berger

2022 Steve Matson

Mimulus tricolor Tricolor monkeyflower

native
Annual herb

2020 Matt Berger

2022 Steve Matson

Diplacus vandenbergensis Vandenberg monkeyflower

• rare native
Annual herb

2019 Chris Leslie

2019 Adonis Tate

2019 Chris Leslie

Mimulus fremontii var. vandenbergensis Vandenberg monkeyflower

• rare native
Annual herb

2019 Chris Leslie

2019 Adonis Tate

2019 Chris Leslie

Mimulus viscidus Viscid monkeyflower

native
Annual herb

2021 R.A. Chasey

2023 Mike Russler

2018 Adam Chasey

Mimulus viscidus var. viscidus Viscid monkeyflower

native
Annual herb

2021 R.A. Chasey

2023 Mike Russler

2018 Adam Chasey

Diplazium esculentum Vegetable fern

non-native
Fern

Diplotaxis erucoides White wallrocket

non-native
Perennial herb

2005 Luigi Rignanese

Diplotaxis muralis Annual wall rocket, Annual wallrocket

non-native
Annual, Perennial herb

2019 Ron Vanderhoff

Diplotaxis tenuifolia Perennial wall rocket, Perennial wallrocket

non-native
Perennial herb

2020 Ron Vanderhoff

2010 Dr.Thomas K. Voekler

Dipogon lignosus Okie bean

• invasive non-native
Perennial herb, Vine

2021 Ron Vanderhoff

2022 Alan Kaufmann

2021 Ron Vanderhoff

Dolichos lignosus Okie bean

• invasive non-native
Perennial herb, Vine

2021 Ron Vanderhoff

2022 Alan Kaufmann

2021 Ron Vanderhoff

Dipsacus fullonum Fuller's teasel, Fullers' teasel, Wild teasel

• invasive non-native
Perennial herb

2022 Morgan Stickrod

2017 MCOSD Restoration Crew

2021 Amber Bedgood

Dipsacus fullonum ssp. sylvestris Fuller's teasel, Fullers' teasel, Wild teasel

• invasive non-native
Perennial herb

2022 Morgan Stickrod

2017 MCOSD Restoration Crew

2021 Amber Bedgood

Dipsacus sylvestris Fuller's teasel, Fullers' teasel, Wild teasel

• invasive non-native
Perennial herb

2022 Morgan Stickrod

2017 MCOSD Restoration Crew

2021 Amber Bedgood

Dipsacus sativus Fuller's teasel, Indian teasel

• invasive non-native
Annual, Biennial herb

2019 Danielle Carney

2022 Jennifer Mo

2022 David Strauch

Dichelostemma capitatum Blue dicks

native
Perennial herb

2023 Steve Matson

2022 Steve Matson

Dichelostemma capitatum ssp. lacuna-vernalis Vernal pool blue dicks

native
Perennial herb

Dichelostemma capitatum ssp. lacuna-vernalis

2022 Paul Natoma

2023 Katie O'Hara-Kelly

2022 Paul Natoma

Dichelostemma capitatum ssp. pauciflorum Few flowered blue dicks

native

Dichelostemma capitatum ssp. pauciflorum

2023 richard mcneill

2014 Mary Merriman

2019 John Doyen

Dirca occidentalis Western leatherwood

• rare native
Shrub

THYMELAEACEAE

2017 John Game

2024 William Blaker

2018 David Greenberger

Dissanthelium californicum California dissanthelium, Catalina grass

• rare native
Annual grass

2018 Emma Havstad

2017 Brian Bielfelt

Distichlis littoralis Shore grass

native
Perennial grass

2020 Ron Vanderhoff

2018 William Jones

2021 Ron Vanderhoff

Distichlis spicata Inland saltgrass, Salt grass, Saltgrass

native
Perennial grass

2020 Matt Berger

2019 Ron Vanderhoff

2022 Donald Burk

Distichlis spicata var. stricta Inland saltgrass, Salt grass, Saltgrass

native
Perennial grass

2020 Matt Berger

2019 Ron Vanderhoff

2022 Donald Burk

Ditaxis claryana Glandular ditaxis

• rare native
Perennial herb

2012 Keir Morse

Argythamnia lanceolata Lance leaved ditaxis, Narrowleaf ditaxis

native
Perennial herb

2010 Steve Matson

2020 David Greenberger

2010 Steve Matson

Ditaxis lanceolata Lance leaved ditaxis, Narrowleaf ditaxis

native
Perennial herb

2010 Steve Matson

2020 David Greenberger

2010 Steve Matson

Ditaxis neomexicana Common ditaxis, New mexico ditaxis

native
Annual, Perennial herb

2019 Matt Berger

Ditaxis serrata Saw toothed ditaxis, Yuma ditaxis

native
Annual, Perennial herb

2019 Richard Spjut

2012 Keir Morse

Ditaxis serrata var. californica California ditaxis

• rare native
Perennial herb

2012 Keir Morse

Ditaxis serrata var. serrata Saw toothed ditaxis

native
Annual, Perennial herb

2019 Richard Spjut

2012 Keir Morse

2013 Neal Kramer

Dithyrea californica California shieldpod, Spectacle pod

native
Annual herb

2010 Steve Matson

Dithyrea maritima Beach shieldpod, Beach spectaclepod

• rare native
Perennial herb (rhizomatous)

2019 Spencer Riffle

2014 John Game

1984 California Native Plant Society

Dittrichia graveolens Stinkwort

• invasive non-native
Annual herb

2017 Bob Huttar

2019 Ron Vanderhoff

Inula graveolens Stinkwort

• invasive non-native
Annual herb

2017 Bob Huttar

2019 Ron Vanderhoff

Dittrichia viscosa False yellowhead

• invasive non-native
Perennial herb

2020 Matthew Perryman

2022 Brad Cook

2021 Phil Calhoun

Dodecahema leptoceras Slender horned spineflower, Slenderhorn spineflower

• rare native
Annual herb

2021 Ron Vanderhoff

2012 Anuja Parikh and Nathan Gale

Dodonaea elaeagnoides Florida hopbush

non-native
Tree, Shrub

2022 Ron Vanderhoff

2023 Ron Vanderhoff

Dodonaea viscosa Florida hopbush

non-native
Tree, Shrub

2022 Ron Vanderhoff

2023 Ron Vanderhoff

Eucephalus breweri

native
Perennial herb

2005 Steve Matson

2013 Steve Matson

Eucephalus engelmannii

native
Perennial herb

Eucephalus ledophyllus var. covillei

native
Perennial herb

2014 Steve Matson

Eucephalus tomentellus Brickellbush aster

native
Perennial herb

2015 Gerald Carr

Dorycnium hirsutum Hairy canary-clover

non-native
Perennial herb

Downingia bacigalupii Bach's calicoflower, Bach's downingia

native
Annual herb

2019 David Greenberger

2019 Leah Gardner

Downingia bella Hoover's calicoflower, Hoover's downingia

native
Annual herb

2017 Ray Gill

2023 Emily Sluiman

2019 Diane Etchison

Downingia bicornuta Bristled downingia, Doublehorn calicoflower

native
Annual herb

2019 David Greenberger

2019 Belinda Lo

2022 Steve Matson

Downingia bicornuta var. bicornuta Bristled downingia, Doublehorn calicoflower

native
Annual herb

2019 David Greenberger

2021 Alaine Arslan

2018 Cheryl Beyer

Downingia bicornuta var. picta Doublehorn calicoflower, Mountain bristled downingia

native
Annual herb

2015 John Doyen

2004 Carol W. Witham

Downingia concolor Maroonspot calicoflower, Spotted throat downingia

native
Annual herb

2019 David Greenberger

2015 Tim Miller

2017 Ray Gill

Downingia concolor var. brevior Cuyamaca lake downingia, Maroonspot calicoflower

• rare native
Annual herb

1996 Christopher Christie

Downingia concolor var. concolor Maroonspot calicoflower, Spotted throat downingia

native
Annual herb

2019 David Greenberger

2015 Julia King

2023 R.A. Chasey

Downingia cuspidata Toothed calicoflower, Toothed downingia

native
Annual herb

2019 Steve Matson

Downingia elegans Elegant calicoflower, Elegant downingia

native
Annual herb

2018 John Doyen

2023 Emily R. Allen

Downingia insignis Harlequin calicoflower, Harlequin downingia

native
Annual herb

2019 David Greenberger

2023 Bill Kress

2019 Ramona Robison

Downingia laeta Great basin calicoflower, Great basin downingia

• rare native
Annual herb

2010 James M. Andre

2012 Jean Pawek

2018 John Doyen

Downingia montana Sierra calicoflower, Sierra downingia

native
Annual herb

2019 David Greenberger

2023 Richard Sullivan

2009 Barry Breckling

Downingia ornatissima Folded calicoflower, Horned downingia

native
Annual herb

2023 Bill Kress

Downingia ornatissima var. ornatissima Folded calicoflower, Horned downingia

native
Annual herb

2021 Robin Carter

2011 Barry Breckling

2004 Carol W. Witham

Downingia pulchella Flatface calicoflower, Flatface downingia

native
Annual herb

2023 R.A. Chasey

2022 Charles Russell

Downingia pusilla Dwarf calicoflower, Dwarf downingia

• rare native
Annual herb

2023 Bill Kress

2019 Scott Yarger

2022 Charles Russell

Downingia yina Cascade calicoflower, Cascade downingia

native
Annual herb

2006 George W. Hartwell

2005 Jerry Murray

2000 John Game

Draba albertina Alaska whitlow grass, Alberta whitlow grass, Slender draba

native
Annual, Perennial herb

2021 Steve Matson

Draba stenoloba var. ramosa Alaska whitlow grass, Alberta whitlow grass, Slender draba

native
Annual, Perennial herb

2021 Steve Matson

Draba asterophora Lake tahoe draba

native
Perennial herb

2003 Steve Matson

2004 Steve Matson

2020 Bob Sweatt

Draba asterophora var. asterophora Lake tahoe draba

• rare native
Perennial herb

2004 Steve Matson

2002 Steve Matson

Draba asterophora var. macrocarpa Cup lake draba, Lake tahoe draba

• rare native
Perennial herb

2020 Bob Sweatt

Draba aureola Golden draba, Mt. lassen draba

• rare native
Perennial herb

2023 Dana York

2020 joaquin hale

Draba breweri Brewer's draba, Brewer's whitlow grass, Cushion draba

native
Perennial herb

2017 Steve Matson

Draba breweri var. breweri Brewer's draba, Brewer's whitlow grass, Cushion draba

native
Perennial herb

2017 Steve Matson

Draba californica California draba

• rare native
Perennial herb

2012 Steve Matson

2022 richard mcneill

2012 Steve Matson

Draba cana Canescent draba

• rare native
Perennial herb

2004 Steve Matson

Draba carnosula Mt. Eddy draba

• rare native
Perennial herb

2011 Steve Matson

2019 John Game

Draba corrugata Southern california draba

native
Perennial herb

2019 Matt Berger

Draba corrugata var. demareei Southern california draba

native
Perennial herb

2019 Matt Berger

Draba cruciata Mineral king draba

• rare native
Perennial herb

2020 Mary Merriman

2018 Dana York

Draba cuneifolia Wedge leaved draba, Wedgeleaf draba

native
Annual herb

2019 Matt Berger

2006 Steve Matson

2023 Ron Vanderhoff

Draba densifolia Dense leaved draba, Denseleaf draba

native
Perennial herb

2008 Steve Matson

2020 Bob Sweatt

2008 Steve Matson

Draba howellii Howell's draba, Rosette draba

• rare native
Perennial herb

2018 Matt Berger

2022 Dana York

Draba incrassata Sweetwater draba, Sweetwater mtns. draba

• rare native
Perennial herb

2006 Steve Matson

2012 Steve Matson

Draba lemmonii Granite draba

native
Perennial herb

2016 Mary Merriman

2022 Bob Sweatt

Draba lonchocarpa Lancepod draba

• rare native
Perennial herb

2016 Steve Matson

Draba longisquamosa Granite draba

native
Perennial herb

2010 Steve Matson

Draba monoensis Mono draba, White mtns. draba

• rare native
Perennial herb

2004 Steve Matson

Draba nemorosa Woodland draba

non-native
Annual herb

2014 Trent M. Draper

2004 Steve Matson

2014 Trent M. Draper

Draba paysonii var. treleasei Trelease's draba

native
Perennial herb

2018 Gerald Carr

Draba oligosperma Few seeded draba, Fewseed draba

native
Perennial herb

2022 richard mcneill

2012 Steve Matson

2022 richard mcneill

Draba oligosperma var. oligosperma Few seeded draba, Fewseed draba

native
Perennial herb

2022 richard mcneill

2012 Steve Matson

2022 richard mcneill

Draba paysonii var. treleasii Payson's draba

native
Perennial herb

1993 Gary A. Monroe

2004 Steve Matson

Draba praealta Tall draba

• rare native
Perennial herb

2009 Steve Matson

2020 Martin Purdy

2009 Steve Matson

Draba pterosperma Winged seed draba, Wingedseed draba

• rare native
Perennial herb

2022 Dana York

1998 John Game

Draba saxosa Southern california rock draba

• rare native
Perennial herb

2012 bill bulger

2009 Thomas Stoughton

2008 Jordan Zylstra

Draba sharsmithii Mt. whitney draba, Sharsmith's draba

• rare native
Perennial herb

2004 Steve Matson

Draba sierrae Sierra draba

• rare native
Perennial herb

2014 Joy England

Draba subumbellata Mound draba, Parasol draba

• rare native
Perennial herb

1987 Dean Wm. Taylor

2004 Steve Matson

Draba verna Spring draba, Whitlow grass, Whitlowgrass

non-native
Annual herb

2011 Steve Matson

2004 Steve Matson

2016 Steve Matson

Draba verna var. aestivalis Spring draba, Whitlow grass, Whitlowgrass

non-native
Annual herb

2011 Steve Matson

2004 Steve Matson

2016 Steve Matson

Erophila verna Spring draba, Whitlow grass, Whitlowgrass

non-native
Annual herb

2011 Steve Matson

2004 Steve Matson

2016 Steve Matson

Dracunculus vulgaris Common dracunculus

non-native
Perennial herb

2018 William Maslach

2013 Gary A. Monroe

2011 W.D. Loughman

Draperia systyla Draperia, Violet draperia

native
Perennial herb

2018 Steve Matson

2008 Steve Matson

Drosanthemum floribundum Ice plant, Rosy ice plant, Showy dewflower

non-native
Perennial herb

2019 Michelle Karle

2022 Ramona Robison

Drosera aliciae Australian sundew

non-native
Perennial herb

2006 Barry Rice

2010 Barry Rice

Drosera anglica English sundew, Long leaved sundew

• rare native
Perennial herb (carnivorous)

2011 Dana York

2006 Steve Matson

Drosera capensis Cape sundew

non-native
Perennial herb

2009 Barry Rice

2017 Barry Rice

2006 Barry Rice

Drosera filiformis Threadleaf sundew

non-native
Perennial herb (carnivorous)

Frithjof Holmboe 2001 California Academy of Sciences

2005 Joseph Dougherty/ecology.org

Drosera filiformis var. filiformis Threadleaf sundew

non-native
Perennial herb (carnivorous)

Frithjof Holmboe 2001 California Academy of Sciences

2005 Joseph Dougherty/ecology.org

Drosera linearis Slenderleaf sundew

non-native
Perennial herb (carnivorous)

Drosera rotundifolia Round leaved sundew, Roundleaf sundew

native
Perennial herb

2006 Steve Matson

Drosera rotundifolia var. charles Round leaved sundew, Roundleaf sundew

native
Perennial herb

2006 Steve Matson

Drosera filiformis var. tracyi Tracy's sundew

non-native
Perennial herb

2010 Barry Rice

Drosera tracyi Tracy's sundew

non-native
Perennial herb

2010 Barry Rice

Drosera Xobovata Hybrid sundew

native
Perennial herb (carnivorous)

2022 Julie A. Kierstead

Drymocallis cuneifolia var. ewanii Ewan's cinquefoil

• rare native
Perennial herb

2011 Michael Charters

2005 Michael Charters

2019 RT Hawke

Drymocallis glandulosa Sticky cinquefoil

native
Perennial herb

2020 Mary Conway

2019 Diane Etchison

2020 Diane Etchison

Potentilla glandulosa Sticky cinquefoil

native
Perennial herb

2020 Mary Conway

2019 Diane Etchison

2020 Diane Etchison

Drymocallis glandulosa var. glandulosa Sticky cinquefoil

native
Perennial herb

2020 Diane Etchison

2017 Steve Matson

2021 Mike Russler

Potentilla glandulosa ssp. glandulosa Sticky cinquefoil

native
Perennial herb

2020 Diane Etchison

2017 Steve Matson

2021 Mike Russler

Drymocallis glandulosa var. reflexa Sticky cinquefoil

native
Perennial herb

2015 Barry Breckling

2003 Yulan Tong

2009 Barry Breckling

Potentilla glandulosa ssp. reflexa Sticky cinquefoil

native
Perennial herb

2015 Barry Breckling

2003 Yulan Tong

2009 Barry Breckling

Drymocallis glandulosa var. wrangelliana Sticky cinquefoil

native
Perennial herb

Drymocallis glandulosa var. wrangelliana

2020 Mary Conway

2017 Gary McDonald

Drymocallis hansenii Yosemite woodbeauty

native
Perennial herb

2009 Barry Breckling

Potentilla glandulosa ssp. hansenii Yosemite woodbeauty

native
Perennial herb

2009 Barry Breckling

Drymocallis lactea

native
Perennial herb

2020 Bob Sweatt

2023 Cynthia Powell

Drymocallis lactea var. austiniae Austin's woodbeauty

native
Perennial herb

2023 Susan McDougall

2023 Alaine Arslan

2023 Susan McDougall

Potentilla glandulosa ssp. ashlandica Austin's woodbeauty

native
Perennial herb

2023 Susan McDougall

2023 Alaine Arslan

2023 Susan McDougall

Drymocallis lactea var. lactea Sierran woodbeauty

native
Perennial herb

2022 Mike Russler

Potentilla glandulosa ssp. nevadensis Sierran woodbeauty

native
Perennial herb

2022 Mike Russler

Drymocallis pseudorupestris False rock loving cinquefoil

native
Perennial herb

2012 Steve Matson

2014 Steve Matson

Potentilla glandulosa ssp. pseudorupestris False rock loving cinquefoil

native
Perennial herb

Potentilla glandulosa ssp. pseudorupestris

2012 Steve Matson

2014 Steve Matson

Drymocallis pseudorupestris var. crumiana Crum's woodbeauty

native
Perennial herb

Drymocallis pseudorupestris var. crumiana

2014 Steve Matson

Drymocallis pseudorupestris var. saxicola Cliff woodbeauty

native
Perennial herb

Drymocallis pseudorupestris var. saxicola

2010 Steve Matson

Dryopteris arguta California wood fern, Coastal wood fern, Shield fern

native
Fern

2018 James Gonsman

2019 Rebecca Crowe

2023 Julia Markey

Dryopteris cristata Crested woodfern

non-native
Fern (rhizomatous)

Dryopteris dilatata Common wood fern, Spreading wood fern, Spreading woodfern

native
Fern

2019 Stella Yang

2023 Diana Wahl

2014 BOB CASE

Dryopteris expansa Common wood fern, Spreading wood fern, Spreading woodfern

native
Fern

2019 Stella Yang

2023 Diana Wahl

2014 BOB CASE

Dryopteris filix-mas Male fern

• rare native
Fern (rhizomatous)

2010 Louis-M. Landry

2006 Louis-M. Landry

2010 Louis-M. Landry

Dryopteris marginalis Marginal woodfern

non-native
Fern (rhizomatous)

Duchesnea indica Indian strawberry, Mock strawberry

non-native
Perennial herb

2013 David popp

2018 Abbot Chambers

2013 Gerald Carr

Duchesnea indica var. indica Mock-strawberry

non-native
Perennial herb

2012 Ramona Robison

2020 R.A. Chasey

Dudleya abramsii Abrams' dudleya, Abrams' liveforever

native
Perennial herb

2020 Talila Golan

2008 Verna Jigour

2023 Mike Russler

Dudleya abramsii ssp. abramsii Abrams' dudleya, Abrams' liveforever

native
Perennial herb

2018 Diane Etchison

2017 Mary Merriman

2021 Grigory Heaton

Dudleya abramsii ssp. affinis San bernardino mountains liveforever, San bernardino mtns. dudleya

• rare native
Perennial herb

2006 Steve Matson

Dudleya abramsii ssp. bettinae San Luis Obispo serpentine dudleya

• rare native
Perennial herb

2012 Terrence Gosliner

2023 Kyle Suchy

2011 Chris Winchell

Dudleya abramsii ssp. calcicola Limestone dudleya

• rare native
Perennial herb

2023 Mike Russler

2023 Bob Steele

2022 Scott Yarger

Dudleya abramsii ssp. murina San Luis Obispo dudleya

• rare native
Perennial herb

2023 Mike Russler

Dudleya abramsii ssp. setchellii Santa clara valley dudleya

• rare native
Perennial herb

2019 Paul Hankamp

2008 Verna Jigour

Dudleya cymosa ssp. setchellii Santa clara valley dudleya

• rare native
Perennial herb

2019 Paul Hankamp

2008 Verna Jigour

Dudleya setchellii Santa clara valley dudleya

• rare native
Perennial herb

2019 Paul Hankamp

2008 Verna Jigour

Dudleya anomala

non-native
Perennial herb

2014 Zoya Akulova

2018 Zoya Akulova

Dudleya arizonica Arizona chalk dudleya

native
Perennial herb

2020 Matt Berger

2017 Diane Etchison

2023 Alaine Arslan

Dudleya attenuata Tapertip liveforever

native
Perennial herb

2006 Vince Scheidt

2006 Steve Matson

2009 Robert Steers

Dudleya attenuata ssp. attenuata Orcutt's dudleya

• rare native
Perennial herb

2006 Vince Scheidt

2006 Steve Matson

Dudleya blochmaniae Blochman's dudleya, Blochman's liveforever

native
Perennial herb

Geoff Burleigh

2023 Mike Russler

Dudleya blochmaniae ssp. blochmaniae Blochman's dudleya, Blochman's liveforever

• rare native
Perennial herb

2022 Aaron Echols

2018 Kristen Nelson

2023 Mike Russler

Dudleya blochmaniae ssp. insularis Blochman's liveforever, Santa rosa island dudleya, Santa rosa island live forever

• rare native
Perennial herb

2000 John Game

Dudleya blochmaniae ssp. brevifolia Short leaved dudleya

• rare native
Perennial herb

2017 Jeff Elman

2006 Kai Palenscar

2013 Keir Morse

Dudleya brevifolia Short leaved dudleya

• rare native
Perennial herb

2017 Jeff Elman

2006 Kai Palenscar

2013 Keir Morse

Dudleya caespitosa Coast dudleya, Sand lettuce

native
Perennial herb

2022 Mary Conway

2022 Cynthia Powell

Dudleya candelabrum Candleholder dudleya, Candleholder live forever, Candleholder liveforever

• rare native
Perennial herb

2018 John Rusk

2020 David Greenberger

Dudleya cymosa Canyon dudleya, Canyon liveforever, Rock lettuce

native
Perennial herb

2019 Steve Matson

2020 Kristin Sabo

Dudleya cymosa ssp. agourensis Canyon liveforever

• rare native
Perennial herb

2020 Michelle Tollett

2021 Jonathan Froines

Dudleya cymosa ssp. costatifolia Pierpoint springs dudleya

• rare native
Perennial herb

1995 Dana York

2016 John Doyen

Dudleya cymosa ssp. crebrifolia San gabriel river dudleya

• rare native
Perennial herb

2015 Gabi McLean

Dudleya cymosa ssp. cymosa Canyon dudleya, Canyon liveforever

native
Perennial herb

2020 R.A. Chasey

2014 James Gonsman

2019 Chico Hiking Association

Dudleya cymosa ssp. gigantea Canyon dudleya, Canyon liveforever

native
Perennial herb

2020 R.A. Chasey

2014 James Gonsman

2019 Chico Hiking Association

Dudleya cymosa ssp. marcescens Marcescent dudleya

• rare native
Perennial herb

2019 Tracy Park

1985 Geoff Burleigh

2022 Devlin Gandy

Dudleya cymosa ssp. ovatifolia Santa monica mountains dudleya, Santa monica mtns. dudleya

• rare native
Perennial herb

2016 Ron Vanderhoff

Dudleya cymosa ssp. paniculata Canyon liveforever, Diablo range dudleya

native
Perennial herb

2019 Steve Matson

2022 Helen Hancock

Dudleya cymosa ssp. pumila Canyon liveforever, Low canyon dudleya

native
Perennial herb

2019 Matt Berger

2021 Mary Conway

2020 Kristin Sabo

Dudleya densiflora San gabriel mountains liveforever, San gabriel mtns. dudleya

• rare native
Perennial herb

2022 Leo Balestri

Dudleya edulis Fingertips

native
Perennial herb

2020 Ron Vanderhoff

2018 Diane Etchison

2009 Ron Vanderhoff

Dudleya farinosa Bluff lettuce, North coast dudleya, Powdery liveforever

native
Perennial herb

2022 Mike Russler

2019 Amy Rapport

2019 Heather Morrison

Dudleya gnoma Munchkin liveforever

• rare native
Perennial herb

2000 John Game

2005 Dieter Wilken

Dudleya greenei Greene's dudleya, Greene's live forever, Greene's liveforever

• rare native
Perennial herb

2023 Dario Berrini

2006 Steve Matson

2021 Grigory Heaton

Dudleya lanceolata Lanceleaf liveforever, Southern california dudleya

native
Perennial herb

2019 Ron Vanderhoff

2020 Steven M Norris

Dudleya multicaulis Many stemmed dudleya, Manystem liveforever

• rare native
Perennial herb

2009 Ron Vanderhoff

2019 Ron Vanderhoff

Dudleya nesiotica Santa cruz island dudleya, Santa cruz island live forever, Santa cruz island liveforever

• rare native
Perennial herb

2014 Steve Matson

Dudleya palmeri Palmer's dudleya, Palmer's liveforever

native
Perennial herb

2016 Brett Dean

2012 Terrence Gosliner

2012 Al Keuter

Dudleya parva Conejo dudleya

• rare native
Perennial herb

2021 Grigory Heaton

2011 Andreas Kettenburg

Dudleya pulverulenta Chalk dudleya

native
Perennial herb

2018 Ron Vanderhoff

2012 Ann Dalkey

2020 Julia Markey

Dudleya saxosa Panamint dudleya, Panamint liveforever, Rock live forever

native
Perennial herb

2019 Cynthia Powell

2019 Ron Vanderhoff

2019 Matt Berger

Dudleya saxosa ssp. aloides Desert dudleya, Panamint liveforever

native
Perennial herb

2019 Josephine Brennan

2019 Ron Vanderhoff

2019 Matt Berger

Dudleya saxosa ssp. saxosa Panamint dudleya, Panamint liveforever

• rare native
Perennial herb

2020 Matt Berger

2011 Drew Kaiser

2020 Matt Berger

Dudleya stolonifera Laguna Beach dudleya, Laguna Beach liveforever

• rare native
Perennial herb

2019 Ron Vanderhoff

Dudleya traskiae Santa barbara island dudleya, Santa barbara island live forever, Santa barbara island liveforever

• rare native
Perennial herb

2014 Robert Sikora

1985 California Native Plant Society

2014 Robert Sikora

Dudleya variegata Variegated dudleya, Variegated liveforever

• rare native
Perennial herb

2019 Bonnie Nickel

2020 Beth Mather

Dudleya verityi Verity's dudleya, Verity's liveforever

• rare native
Perennial herb

2015 Zack Abbey

2023 Zack Abbey

2015 Steven M Norris

Dudleya virens Bright green dudleya

native
Perennial herb

2006 Steve Matson

2009 Robert Steers

Dudleya virens var. virens Bright green dudleya

native
Perennial herb

2006 Steve Matson

2009 Robert Steers

Dudleya hassei Bright green dudleya

• rare native
Perennial herb

2006 Steve Matson

2013 Susan McDougall

2009 Zoya Akulova

Dudleya virens ssp. hassei Bright green dudleya

• rare native
Perennial herb

2006 Steve Matson

2013 Susan McDougall

2009 Zoya Akulova

Dudleya virens ssp. insularis Bright green dudleya

• rare native
Perennial herb

2018 Ron Vanderhoff

2017 Neil Uelman

2024 Cynthia Powell

Dudleya virens ssp. virens Bright green dudleya

• rare native
Perennial herb

2022 Grigory Heaton

2011 Neal Kramer

Dudleya viscida Sticky dudleya, Sticky liveforever

• rare native
Perennial herb

2021 Ron Vanderhoff

Dulichium arundinaceum Dulchium, Three way sedge, Threeway sedge

native
Perennial grasslike herb

2015 Peter Warner

2014 Gerald Carr

Duranta erecta Golden dewdrops

non-native
Shrub, Tree

2010 Moorea Biocode

Duranta repens Golden dewdrops

non-native
Shrub, Tree

2010 Moorea Biocode

Dysphania ambrosioides Mexican tea

non-native
Annual, Perennial herb

2020 Ron Vanderhoff

2018 Ron Vanderhoff

2020 Ron Vanderhoff

Chenopodium botrys Jerusalem oak goosefoot

non-native
Annual herb

2022 Steve Matson

2021 BLM Redding Field Office

2023 R.A. Chasey

Dysphania botrys Jerusalem oak goosefoot

non-native
Annual herb

2022 Steve Matson

2021 BLM Redding Field Office

2023 R.A. Chasey

Dysphania multifida Cut leaved goosefoot

non-native
Annual, Perennial herb

2017 James Bailey

2023 Maria Alvarez

Dysphania pumilio Tasmanian goosefoot

non-native
Annual herb

2018 Ron Vanderhoff

2019 Ron Vanderhoff

2018 Ron Vanderhoff

Dyssodia papposa Fetid marigold

non-native
Annual herb

2013 Justy Leppert

2015 Richard Spellenberg

Eastwoodia elegans Eastwoodia, Yellow aster, Yellow mock aster

native
Shrub

2019 Diane Etchison

2022 David Strauch

2019 Diane Etchison

Eatonella nivea White eatonella, White false tickhead

native
Annual herb

2014 Steve Matson

Ebenopsis ebano Texas ebony

non-native
Tree, Shrub

2015 Wynn Anderson

Ecballium elaterium Squirting cucumber

non-native
Annual herb, Vine

Echinocactus polycephalus Cottontop cactus

native
Shrub (stem succulent)

2022 Mike Russler

2022 Steve Matson

Echinocactus polycephalus var. xeranthemoides Cottontop cactus

native
Shrub (stem succulent)

Echinocactus polycephalus var. xeranthemoides

2022 Mike Russler

2022 Steve Matson

Echinocactus polycephalus var. polycephalus Many-headed barrel cactus, Cotton top cactus, Cottontop cactus

native
Shrub (stem succulent)

Echinocactus polycephalus var. polycephalus

2019 Dan Fillipi

2012 Keir Morse

2016 James Gonsman

Echinocereus coccineus Scarlet hedgehog cactus

native
Shrub (stem succulent)

2011 Robert Sivinski

2004 Robert Sivinski

Echinocereus coccineus var. paucispinus Scarlet hedgehog cactus

native
Shrub (stem succulent)

2011 Robert Sivinski

2004 Robert Sivinski

Echinocereus engelmannii Calico cactus, Engelmann's hedgehog cactus

native
Shrub (stem succulent)

2016 Steve Matson

2015 Diane Etchison

2014 Timothy Boomer

Echinocereus engelmannii var. acicularis Engelmann's hedgehog cactus

native
Shrub (stem succulent)

Echinocereus engelmannii var. acicularis

Echinocereus engelmannii var. howei Howe's hedgehog cactus

• rare native
Shrub (stem succulent)

1989 Wolfgang Blum

Echinocereus mojavensis Mojave kingcup cactus

native
Shrub (stem succulent)

2011 Steve Matson

2019 Steve Matson

Echinocereus triglochidiatus Mojave kingcup cactus

native
Shrub (stem succulent)

2011 Steve Matson

2019 Steve Matson

Echinocereus triglochidiatus var. mojavensis Mojave kingcup cactus

native
Shrub (stem succulent)

Echinocereus triglochidiatus var. mojavensis

2011 Steve Matson

2019 Steve Matson

Echinochloa colona Jungle rice

non-native
Annual grass

2018 Ron Vanderhoff

Echinochloa crus-galli Barnyard grass, Japanese millet, Watergrass

non-native
Annual grass

2016 Barbara Boethling

2022 R.A. Chasey

2008 Zoya Akulova

Echinochloa crus-pavonis Gulf cockspur grass

non-native
Annual grass

2006 Steve Matson

Echinochloa muricata Rough barnyard grass, Rough barnyardgrass

non-native
Annual grass

2020 Robert L. Carr

Echinochloa muricata var. muricata Rough barnyard grass, Rough barnyardgrass

non-native
Annual grass

2020 Robert L. Carr

Echinodorus berteroi Burhead, Upright burrhead

native
Perennial herb (aquatic)

2019 Neal Kramer

2021 Ron Vanderhoff

2019 Neal Kramer

Echinodorus cordifolius Creeping burhead

non-native
Perennial herb (aquatic)

Echinops exaltatus Tall globethistle

non-native
Perennial herb

Echinops sphaerocephalus Globe thistle, Great globethistle

non-native
Perennial herb

2008 Zoya Akulova

Echium candicans Pride of madeira

• invasive non-native
Shrub

2019 Patrick Furtado

2018 Ron Vanderhoff

2012 Carl Spencer

Echium fastuosum Pride of madeira

• invasive non-native
Shrub

2019 Patrick Furtado

2018 Ron Vanderhoff

2012 Carl Spencer

Echium pininana Pine echium

non-native
Shrub

2014 Alex Beakes

2014 Toni Corelli

2014 Ben Pittenger

Echium plantagineum Salvation echium, Salvation jane, Viper's bugloss

• invasive non-native
Annual, Perennial herb

2020 John Rawlings

2019 Ken Hickman

2011 Daniel Gluesenkamp

Echium vulgare Common viper's bugloss

non-native
Shrub

2019 LJ Moore-McClelland

2005 Louis-M. Landry

Eclipta prostrata False daisy

native
Annual herb

2018 Ron Vanderhoff

2020 Ron Vanderhoff

2020 R.A. Chasey

Egeria densa Brazilian water weed, Brazilian waterweed

• invasive non-native
Perennial herb

2011 Larry Norall

2014 Richard Chasey

2012 Gina Darin

Dicentra chrysantha Golden eardrops

native
Perennial herb

2019 David Greenberger

2020 Bryant Baker

2019 Ron Vanderhoff

Ehrendorferia chrysantha Golden eardrops

native
Perennial herb

2019 David Greenberger

2020 Bryant Baker

2019 Ron Vanderhoff

Ehrendorferia ochroleuca Yellow bleeding heart, White eardrops, White bleeding heart

native
Perennial herb

2020 Diane Etchison

2020 Bryant Baker

Ehrharta calycina Perennial veldt grass, Perennial veldtgrass

• invasive non-native
Perennial grass

2020 David Greenberger

2019 Ron Vanderhoff

2018 Ron Vanderhoff

Ehrharta erecta Panic veldtgrass, Upright veldt grass

• invasive non-native
Perennial grass

2023 Rachel Suding

2020 Ron Vanderhoff

Ehrharta longiflora Longflowered veldtgrass

• invasive non-native
Annual grass

2020 Angelique Herman

Eichhornia crassipes Common water hyacinth

• invasive non-native
Perennial herb

2015 Judy and Barry Breckling

2018 Rachelle Gray

2020 Ron Vanderhoff

Elaeagnus angustifolia Oleaster, Russian olive

• invasive non-native
Tree, Shrub

ELAEAGNACEAE

2012 Tim Gibson

2019 Joe Woods

2022 Joe Woods

Elatine brachysperma Short seed waterwort, Shortseed waterwort

native
Annual, Perennial herb

2023 Ron Vanderhoff

Elatine californica California waterwort

native
Annual, Perennial herb

2023 Keir Morse

Mary Ann Hannon

2015 Vernon Smith

Elatine chilensis Chilean waterwort

native
Annual, Perennial herb (aquatic)

2012 Keir Morse

Elatine rubella Southwestern waterwort

native
Annual herb

2008 Steve Matson

Eleocharis acicularis Needle spike rush, Needle spikerush

native
Perennial grasslike herb

2022 Ken-ichi Ueda

2021 Ron Vanderhoff

2019 Julia King

Eleocharis acicularis var. acicularis Needle spike rush, Needle spikerush

native
Perennial grasslike herb

2017 Toni Corelli

2023 R.A. Chasey

2023 Robin Carter-Ervin

Eleocharis atropurpurea Purple spikerush

native
Annual grasslike herb

2003 Steve Matson

Eleocharis bella Beautiful spikerush

native
Perennial grasslike herb

2021 R.A. Chasey

2003 Steve Matson

2013 Jake Ruygt

Eleocharis bolanderi Bolander's spikerush

native
Perennial grasslike herb

2003 Steve Matson

Eleocharis coloradoensis Dwarf spikerush

native
Perennial grasslike herb

2020 Ron Vanderhoff

Eleocharis decumbens Decumbent spikerush

native
Annual grasslike herb

2019 Steve Matson

Eleocharis engelmannii Engelmann's spikerush

native
Annual grasslike herb

2023 David popp

2003 Steve Matson

Eleocharis engelmannii var. engelmannii Engelmann's spikerush

native
Annual grasslike herb

2023 David popp

2013 Jake Ruygt

Eleocharis flavescens var. flavescens Yellow spikerush

native
Annual grasslike herb

2004 Steve Matson

Eleocharis geniculata Bent spikerush, Canada spikesedge

native
Annual grasslike herb

2019 Belinda Lo

Eleocharis macrostachya Common spikerush, Creeping spike rush, Pale spikerush

native
Perennial grasslike herb

2023 Ron Vanderhoff

2003 Steve Matson

Eleocharis montevidensis Montevideo spike rush, Sand spikerush

native
Perennial grasslike herb

2021 Ron Vanderhoff

2020 John Rawlings

Eleocharis obtusa Blunt spike rush, Blunt spikerush, Broad spiked spikerush

native
Annual grasslike herb

2008 Louis-M. Landry

Eleocharis obtusa var. obtusa Blunt spike rush, Blunt spikerush, Broad spiked spikerush

native
Annual grasslike herb

2008 Louis-M. Landry

Eleocharis pachycarpa Black sand spikerush, Broad fruit spikerush

non-native
Perennial grasslike herb

2003 Steve Matson

Eleocharis palustris Common spikerush

native
Perennial grasslike herb

2011 Gerald Carr

2020 Ron Vanderhoff

Eleocharis parishii Parish's spike rush, Parish's spikerush

native
Perennial grasslike herb

2014 Steve Matson

2018 Rachelle Gray

Eleocharis parvula Dwarf spikerush, Small spikerush

• rare native
Perennial grasslike herb

2020 Ron Vanderhoff

Eleocharis quadrangulata Four angled spikerush, Squarestem spikerush

native
Perennial grasslike herb

2021 Donald Burk

2022 Donald Burk

2007 Julie A. Kierstead

Eleocharis pauciflora Fewflower spikerush

native
Perennial grasslike herb

2006 Steve Matson

Eleocharis quinqueflora Fewflower spikerush

native
Perennial grasslike herb

2006 Steve Matson

Eleocharis radicans Creeping spikerush, Rooted spikerush

native
Perennial grasslike herb

2019 Ron Vanderhoff

Eleocharis rostellata Beaked spikerush, Walking sedge

native
Perennial grasslike herb

2015 Steve Matson

Eleocharis torticulmis California twisted spikerush

• rare native
Perennial grasslike herb (rhizomatous)

2019 David Greenberger

2011 Dean Wm. Taylor, Ph.D.

Eleusine coracana ssp. africana African finger millet

non-native
Annual grass

2018 Ron Vanderhoff

2017 Ron Vanderhoff

2018 Ron Vanderhoff

Eleusine indica Goose grass, Indian goosegrass

non-native
Annual grass

2022 Jennifer Mo

2020 Ron Vanderhoff

Eleusine tristachya Three spiked goosegrass, Threespike goosegrass

non-native
Annual grass

2023 Donald Burk

Elodea canadensis Canadian waterweed, Common water weed, Elodea

native
Perennial herb

2000 Bob Sweatt

2019 David popp

2020 R.A. Chasey

Elodea nuttallii Western waterweed

native
Perennial herb

2022 Bob Sweatt

Elymus californicus California bottle brush grass, California bottle grass, California bottlebrush grass

• rare native
Perennial grass

2017 Ken Hickman

2019 Claire Mallen

2023 R.A. Chasey

Elymus canadensis Canada wild rye, Canada wildrye

non-native
Perennial grass

2006 Louis-M. Landry

2008 Louis-M. Landry

Elymus caput-medusae Medusa head

• invasive non-native
Annual grass

2023 Ron Vanderhoff

2019 Jennifer Mo

2011 Steve Matson

Taeniatherum caput-medusae Medusa head

• invasive non-native
Annual grass

2023 Ron Vanderhoff

2019 Jennifer Mo

2011 Steve Matson

Elymus cinereus Great basin wild rye

native
Perennial grass

2020 John Rawlings

2008 Steve Matson

Leymus cinereus Great basin wild rye

native
Perennial grass

2020 John Rawlings

2008 Steve Matson

Elymus condensatus Giant wild rye

native
Perennial grass

2020 Ron Vanderhoff

2022 John Rawlings

2020 Diane Etchison

Elymus elymoides Bottlebrush squirreltail, Squirrel tail grass, Squirreltail

native
Perennial grass

2022 Steve Matson

2012 Robert L. Carr

Elymus elymoides var. californicus Squirrel tail grass

native
Perennial grass

2021 David popp

2022 Dana York

2007 Steve Matson

Elymus elymoides var. elymoides Squirrel tail grass

native
Perennial grass

2020 Susan McDougall

2012 Dylan Neubauer

Elymus elymoides var. hordeoides Barley squirreltail

native
Perennial grass

2007 Steve Matson

Elymus glaucus Blue wildrye

native
Perennial grass

2020 Denise Defreese

2019 Patrick Furtado

2018 Cynthia Powell

Elymus glaucus ssp. glaucus Blue wild rye, Blue wildrye, Western rye grass

native
Perennial grass

2014 Toni Corelli

2021 Arlee Montalvo

2022 Ron Vanderhoff

Elymus glaucus ssp. jepsonii Blue wild rye, Blue wildrye, Western rye grass

native
Perennial grass

2014 Toni Corelli

2021 Arlee Montalvo

2022 Ron Vanderhoff

Elymus glaucus ssp. virescens Blue wildrye, Virginia wildrye

native
Perennial grass

2023 John Rawlings

2012 Toni Corelli

2023 John Rawlings

Elymus hispidus Intermediate wheatgrass

non-native
Perennial grass

2003 Steve Matson

Elymus lanceolatus Thickspike wheatgrass

native
Perennial grass

2012 Gerald Carr

Elymus mollis American dune grass

native
Perennial grass

2009 Toni Corelli

2017 Adam Chasey

2020 Ken Hickman

Elymus mollis ssp. mollis American dune grass, sea lyme grass

native
Perennial grass

2021 Ramona Robison

2009 Toni Corelli

Elymus multisetus Big squirreltail grass

native
Perennial grass

2019 Ron Vanderhoff

2023 Helen Hancock

2021 Denise Defreese

Elymus pacificus Pacific wild rye

native
Perennial grass

2010 Toni Corelli

2014 Eric Wrubel

2010 Robert Steers/NPS

Leymus pacificus Pacific wild rye

native
Perennial grass

2010 Toni Corelli

2014 Eric Wrubel

2010 Robert Steers/NPS

Elymus ponticus Tall wheat grass

non-native
Perennial grass

2021 Lenihan Mazur

2020 ALice Cummings

2020 Ron Vanderhoff

Elytrigia pontica Tall wheat grass

non-native
Perennial grass

2021 Lenihan Mazur

2020 ALice Cummings

2020 Ron Vanderhoff

Agropyron repens Quack grass

non-native
Perennial grass

2005 Louis-M. Landry

2008 Keir Morse

Elymus repens Quack grass

non-native
Perennial grass

2005 Louis-M. Landry

2008 Keir Morse

Elymus sierrae Sierra wildrye

native
Perennial grass

2010 Steve Matson

2012 Steve Matson

Elymus smithii Western wheat grass

native
Perennial grass

2008 Zoya Akulova

2008 Sean B. Smith

Elymus spicatus Blue bunch wheat grass

native
Perennial grass

2013 Robert L. Carr

Pseudoroegneria spicata Blue bunch wheat grass

native
Perennial grass

2013 Robert L. Carr

Pseudoroegneria spicata ssp. spicata Blue bunch wheat grass

native
Perennial grass

2013 Robert L. Carr

Elymus stebbinsii California wheat grass, Parish wheatgrass, Stebbins' wildrye

native
Perennial grass

2021 Arlee Montalvo

2007 Steve Matson

2018 Steve Matson

Elymus trachycaulus Slender wheatgrass

native
Perennial grass

2021 Julian Geoghegan

2016 Andrew Longman

2020 Diana Wahl

Elymus trachycaulus ssp. trachycaulus Slender wheatgrass

native
Perennial grass

2022 John Rawlings

2019 Ken Hickman

Elymus triticoides Beardless wild rye

native
Perennial grass

2018 Ron Vanderhoff

2021 Ron Vanderhoff

2018 Rachelle Gray

Elymus Xgouldii Many flowered wild rye

native
Perennial grass

2016 Margot Cunningham

2019 Ken Hickman

2019 John Rawlings

Leymus Xvancouverensis Vancouver wild rye

native
Perennial grass

2022 John Rawlings

Emex spinosa Devil's thorn, Spiny threecornerjack

• invasive non-native
Annual herb

2017 Barbara Boethling

2015 Ron Vanderhoff

2017 Barbara Boethling

Emilia fosbergii Florida tasselflower

non-native
Annual herb

2010 Moorea Biocode

Emilia sonchifolia Lilac tasselflower

non-native
Annual herb

2012 Zoya Akulova

Emilia sonchifolia var. javanica Lilac tasselflower

non-native
Annual herb

2012 Zoya Akulova

Emmenanthe penduliflora Whispering bells, Whisperingbells

native
Annual herb

2022 Steve Matson

Emmenanthe penduliflora var. penduliflora Whispering bells, Whisperingbells

native
Annual herb

Emmenanthe penduliflora var. penduliflora

2014 Steve Matson

2010 Steve Matson

Emmenanthe penduliflora var. rosea Pink whispering bells

native
Annual herb

2022 Mike Russler

2021 Dee Shea Himes

2022 Mike Russler

Empetrum nigrum Black crowberry

• rare native
Shrub

2013 Dana York

Encelia actoni Acton encelia

native
Shrub

2022 Steve Matson

Encelia californica Bush sunflower, California brittlebush, California encelia

native
Shrub

2020 Aaron Echols

2021 Mary Wloch

2020 Diane Etchison

Encelia farinosa Brittlebush, Goldenhills, Incienso

native
Shrub

2020 Ron Vanderhoff

2016 Steve Matson

2022 Ron Vanderhoff

Encelia farinosa var. farinosa Brittlebush, Goldenhills, Incienso

native
Shrub

2020 Ron Vanderhoff

2016 Steve Matson

2022 Ron Vanderhoff

Encelia farinosa var. phenicodonta Brittlebush, Goldenhills, Incienso

native
Shrub

2020 Ron Vanderhoff

2016 Steve Matson

2022 Ron Vanderhoff

Encelia frutescens Bush encelia, Button brittlebush, Button encelia

native
Shrub

2010 Steve Matson

Encelia virginensis Encelia, Virgin river brittlebush, Virgin river encelia

native
Shrub

2007 Jason E. Willand

2005 James M. Andre

2007 Jason E. Willand

Encelia virginensis ssp. actonii Encelia, Virgin river brittlebush, Virgin river encelia

native
Shrub

2007 Jason E. Willand

2005 James M. Andre

2007 Jason E. Willand

Encelia virginensis var. actonii Encelia, Virgin river brittlebush, Virgin river encelia

native
Shrub

2007 Jason E. Willand

2005 James M. Andre

2007 Jason E. Willand

Enceliopsis covillei Panamint daisy

• rare native
Perennial herb

2019 Matt Berger

2011 Steve Matson

2019 Matt Berger

Enceliopsis nudicaulis Naked stemmed daisy, Nakedstem sunray

native
Perennial herb

2016 Steve Matson

Enceliopsis nudicaulis ssp. corrugata Naked stemmed daisy, Nakedstem sunray

native
Perennial herb

2016 Steve Matson

Enceliopsis nudicaulis var. corrugata Nakedstem sunray

• rare native
Perennial herb, Shrub

2004 Dana York

Enceliopsis nudicaulis var. nudicaulis Nakedstem sunray

• rare native
Perennial herb, Shrub

2008 Steve Matson

Enchylaena tomentosa Ruby saltbush

non-native
Perennial herb

2015 Dean Kelch

2017 Jason Giessow

2015 Eugene Sturla

Enemion occidentale WESTERN RUE-ANEMONE, Western false rue anemone

native
Perennial herb

2017 Steve Matson

2004 Steve Matson

Isopyrum occidentale WESTERN RUE-ANEMONE, Western false rue anemone

native
Perennial herb

2017 Steve Matson

2004 Steve Matson

Enemion stipitatum Siskiyou false rue anemone

native
Perennial herb

2021 Steve Laymon

2020 Steve Laymon

2008 Keir Morse

Enneapogon desvauxii Nine awned pappus grass, Nineawn pappusgrass

• rare native
Perennial grass

2011 Keir Morse

Ephedra aspera Mormon tea, Rough jointfir

native
Shrub

2013 Mellisa Yin

2019 Belinda Lo

Ephedra californica California ephedra, California jointfir, Desert tea

native
Shrub

2021 Kristen Nelson

2022 Mike Russler

Ephedra distachya Jointfir

non-native
Shrub

University and Jepson Herbaria

Ephedra funerea Death valley ephedra, Death valley jointfir

native
Shrub

2016 Steve Matson

2019 Matt Berger

Ephedra nevadensis Nevada ephedra, Nevada jointfir, Nevada mormon tea

native
Shrub

2014 Steve Matson

2007 Steve Matson

Ephedra torreyana Torrey's jointfir

• rare native
Shrub

2019 Belinda Lo

Ephedra trifurca Long leafed ephedra, Longleaf jointfir

native
Tree, Shrub

2019 Matt Berger

2010 Neal Kramer

2017 Fred Melgert / Carla Hoegen

Ephedra viridis Green ephedra, Mormon tea, Mountain ephedra

native
Shrub

2021 Bryant Baker

Epilobium alpinum Alpine willowherb, Pimpernel willowherb

native
Perennial herb

2019 David Greenberger

2016 Steve Matson

Epilobium anagallidifolium Alpine willowherb, Pimpernel willowherb

native
Perennial herb

2019 David Greenberger

2016 Steve Matson

Epilobium brachycarpum Annual fireweed, Autumn willowweed, Panicled willow herb

native
Annual herb

2023 Mary Ann Machi

2019 Ramona Robison

2020 Ron Vanderhoff

Epilobium campestre Smooth boisduvalia

native
Annual herb

2007 Steve Matson

Epilobium canum California fuchsia, Hummingbird trumpet, zauschneria

native
Perennial herb

2018 Ron Vanderhoff

2015 Gerald Carr

Zauschneria californica California fuchsia, Hummingbird trumpet, zauschneria

native
Perennial herb

2018 Ron Vanderhoff

2015 Gerald Carr

Epilobium canum ssp. angustifolium Hummingbird trumpet

native
Perennial herb

2009 Juergen Schrenk

2012 Faerthen Felix

Epilobium canum ssp. canum California fuchsia, Hummingbird trumpet

native
Perennial herb

2018 Ron Vanderhoff

Epilobium canum ssp. garrettii Garrett's california fuchsia

native
Perennial herb

2009 Gary A. Monroe

Zauschneria garrettii Garrett's california fuchsia

native
Perennial herb

2009 Gary A. Monroe

Epilobium canum ssp. latifolium California fuchsia, Hummingbird trumpet, Mountain california fuchsia

native
Perennial herb

2015 Steve Matson

2023 Steve Conger

2016 Rebecca Schoenenberger

Epilobium ciliatum Fringed willowherb, Northern willow herb, Slender willow herb

native
Perennial herb

2021 stephen rosenthal

2019 Patrick Furtado

2019 Gary McDonald

Epilobium ciliatum ssp. ciliatum Fringed willowherb, Northern willow herb, Willow herb

native
Perennial herb

2014 Steve Matson

Epilobium ciliatum ssp. glandulosum Fringed willowherb, Glandular willowherb

native
Perennial herb

2023 Steve Conger

2021 Mike Russler

Epilobium glandulosum Fringed willowherb, Glandular willowherb

native
Perennial herb

2023 Steve Conger

2021 Mike Russler

Epilobium ciliatum ssp. watsonii Fringed willowherb, Watson's willowherb, Willow herb

native
Perennial herb

2012 BOB CASE

2021 Jamie Spielmann

Epilobium clavatum Club fruit willowherb, Talus willowherb

native
Perennial herb

2019 Jane Cohn

2004 Robert E. Preston, Ph.D.

Epilobium cleistogamum Cleistogamous boisduvalia, Selfing willowherb

native
Annual herb

2007 Neal Kramer

2015 Neal Kramer

2004 Carol W. Witham

Epilobium densiflorum Dense boisduvalia, Dense flowered boisduvalia, Dense flowered spike primrose

native
Annual herb

2009 BOB CASE

2021 Mike Russler

2022 Ken-ichi Ueda

Epilobium foliosum California willowherb

native
Annual herb

2020 Chico Hiking Association

2010 Jean Pawek

2015 Vernon Smith

Epilobium glaberrimum Glaucous willow herb, Glaucus willowherb, Smooth willowherb

native
Perennial herb

2003 Steve Matson

Epilobium glaberrimum ssp. fastigiatum Cluster stemmed willowherb, Glaucus willowherb, Smooth willowherb

native
Perennial herb

2010 Keir Morse

Epilobium glaberrimum ssp. glaberrimum Glaucus willowherb, Smooth willowherb

native
Perennial herb

2003 Steve Matson

Epilobium hallianum Hall's willowherb

native
Perennial herb

2005 Steve Matson

2010 Steve Matson

Epilobium hornemannii ssp. hornemannii Hornemann's willow herb, Hornemann's willowherb

native
Perennial herb

2006 Gerald Carr

Epilobium howellii Subalpine fireweed, Yuba pass willowherb

• rare native
Perennial herb

2020 Bob Sweatt

2006 Dean Wm. Taylor, Ph.D.

2010 Steve Matson

Epilobium lactiflorum Milkflower willowherb, White flowered willowherb

native
Perennial herb

2009 Barry Breckling

2016 Sierra Pacific Industries

2009 Barry Breckling

Epilobium leptophyllum Bog willowherb, Slender leaved willowherb

non-native
Perennial herb

2011 Louis-M. Landry

Epilobium luteum Yellow willowherb

• rare native
Perennial herb

2020 Jane Cohn

Epilobium minutum Chaparral willowherb, Desert willow herb, Little willowherb

native
Annual herb

2017 Michael Mitchell

2021 R.A. Chasey

2019 Ken Lunders

Epilobium nivium Snow mountain willowherb, Snow mtn. willowherb

• rare native
Perennial herb

2011 Ryan Elliott

2018 Japhia Huhndorf

2011 Ryan Elliott

Epilobium obcordatum Heart willowweed, Rockfringe

native
Perennial herb

2022 richard mcneill

2017 Steve Matson

2019 Dee Shae Himes

Epilobium oreganum Grants pass willowherb, Oregon fireweed

• rare native
Perennial herb

2015 Steve Matson

Epilobium oregonense Oregon willowherb, Slimstem willowweed

native
Perennial herb

2019 Bob Sweatt

2018 Susan McDougall

Epilobium pallidum Largeflower spike primrose, Pale boisduvalia

native
Annual herb

2019 David popp

2005 George W. Hartwell

Epilobium palustre Marsh willow herb, Marsh willowherb

• rare native
Perennial herb

2015 Robert Carr

Epilobium rigidum Siskiyou mtns. willowherb, Stiff willowherb

• rare native
Perennial herb

2022 Dee Shea Himes

2005 Jennifer L. Kalt

Epilobium septentrionale Humboldt county fuchsia, Northern willowherb

• rare native
Perennial herb

Jennifer Wheeler

2005 Jennifer L. Kalt

Epilobium siskiyouense Siskiyou fireweed, Siskiyou willowherb

• rare native
Perennial herb

2019 Matt Berger

2023 Joaquin Hale

2021 Donald Burk

Epilobium torreyi Narrow boisduvalia, Narrow leaved boisduvalia, Torrey's willowherb

native
Annual herb

2022 Mark Gary

2019 Ken Hickman

2022 R.A. Chasey

Epipactis gigantea Giant helleborine, Stream orchid, Stream orchis

native
Perennial herb

2016 Barry Rice

2020 Ron Vanderhoff

2018 Anna Sereno

Epipactis helleborine Broadleaf helleborine

non-native
Perennial herb

2020 Cara Wilcox

2019 Stacie Wolny

2022 David Strauch

Epipactis helleborine ssp. helleborine Broadleaf helleborine

non-native
Perennial herb

2020 Cara Wilcox

2019 Stacie Wolny

2022 David Strauch

Epipactis helleborine ssp. orbicularis Broadleaf helleborine

non-native
Perennial herb

2020 Cara Wilcox

2019 Stacie Wolny

2022 David Strauch

Epipterygium tozeri Tozer's epipterygium moss

native
Moss

BRYACEAE

2016 John Game

2021 Diana Wahl

Equisetum arvense Common horsetail rush, Common horsetail, field horsetail, Field horsetail

native
Fern

2022 Suzanne L. Weakley

2021 Cynthia Powell

2016 Cynthia Powell

Equisetum arvense var. alpestre Common horsetail rush, Common horsetail, field horsetail, Field horsetail

native
Fern

2022 Suzanne L. Weakley

2021 Cynthia Powell

2016 Cynthia Powell

Equisetum fluviatile Water horsetail

non-native
Fern

Equisetum hyemale Scouringrush horsetail

native
Fern

2021 Mary Gerbic

2021 Ron Vanderhoff

2016 David popp

Equisetum hyemale ssp. affine Giant scouring rush

native
Fern

2013 Michael Mitchell

2021 Ron Vanderhoff

2013 Michael Mitchell

Equisetum hyemale var. affine Giant scouring rush

native
Fern

2013 Michael Mitchell

2021 Ron Vanderhoff

2013 Michael Mitchell

Equisetum hyemale var. robustum Giant scouring rush

native
Fern

2013 Michael Mitchell

2021 Ron Vanderhoff

2013 Michael Mitchell

Equisetum fontinale Horsetail, Smooth horsetail, Smooth scouring rush

native
Fern

2020 David popp

2021 Ron Vanderhoff

2021 Richard Spjut

Equisetum laevigatum Horsetail, Smooth horsetail, Smooth scouring rush

native
Fern

2020 David popp

2021 Ron Vanderhoff

2021 Richard Spjut

Equisetum palustre Marsh horsetail

• rare native
Fern (rhizomatous)

2007 Dr. Amadej Trnkoczy

University and Jepson Herbaria

Equisetum telmateia Giant horsetail

native
Fern

2021 Jennifer Mo

2023 Ron Vanderhoff

2022 Mary Conway

Equisetum telmateia ssp. braunii Giant horse tail, Giant horsetail

native
Fern

2016 Steve Matson

2022 Suzanne L. Weakley

Equisetum telmateia var. braunii Giant horse tail, Giant horsetail

native
Fern

2016 Steve Matson

2022 Suzanne L. Weakley

Eragrostis barrelieri Mediterranean lovegrass

non-native
Annual grass

2007 Steve Matson

Eragrostis cilianensis Stinkgrass

non-native
Annual grass

2021 Donald Burk

2012 Keir Morse

2021 Donald Burk

Eragrostis megastachya Stinkgrass

non-native
Annual grass

2021 Donald Burk

2012 Keir Morse

2021 Donald Burk

Eragrostis hypnoides Teal lovegrass

native
Annual grass

2021 R.A. Chasey

Eragrostis mexicana ssp. virescens Mexican lovegrass, Orcutt's eragrostis

native
Annual grass

2022 Ron Vanderhoff

Eragrostis pectinacea var. pectinacea Tufted lovegrass

native
Annual grass

2007 Steve Matson

Eragrostis pilosa Indian lovegrass

non-native
Annual grass

2023 Donald Burk

Eragrostis pilosa var. pilosa Indian lovegrass

non-native
Annual grass

2023 Donald Burk

Erechtites hieracifolia American burnweed

non-native
Annual, Perennial herb

2008 Louis-M. Landry

Erechtites hieraciifolius var. hieraciifolius American Burnweed

native
Annual herb

Eremalche exilis White mallow

native
Annual herb

2022 Steve Matson

2018 Steve Matson

Eremalche parryi Parry's mallow

native
Annual herb

2019 Rachelle Gray

2022 Mike Russler

Eremalche parryi ssp. kernensis Kern mallow

• rare native
Annual herb

2020 David Greenberger

2018 Sarah Termondt

2023 Mike Russler

Eremalche parryi ssp. parryi Parry's mallow

native
Annual herb

2019 Dee Shea Himes

2022 Mike Russler

2019 Dee Shea Himes

Malvastrum parryi Parry's mallow

native
Annual herb

2019 Dee Shea Himes

2022 Mike Russler

2019 Dee Shea Himes

Eremalche rotundifolia Desert five-spot, Desert fivespot

native
Annual herb

2020 David Greenberger

2023 Bob Steele

Malvastrum rotundifolium Desert five-spot, Desert fivespot

native
Annual herb

2020 David Greenberger

2023 Bob Steele

Cryptantha micrantha var. lepida Mountain red-root

native
Annual herb

2019 Diane Etchison

2014 Keir Morse

2019 Diane Etchison

Cryptantha micrantha var. micrantha Desert red-root

native
Annual herb

2023 Keir Morse

Arenaria aculeata Prickly sandwort

native
Perennial herb

2001 Jeff Abbas

2014 John Doyen

2017 John Doyen

Eremogone aculeata Prickly sandwort

native
Perennial herb

2001 Jeff Abbas

2014 John Doyen

2017 John Doyen

Eremogone cliftonii Clifton's eremogone

• rare native
Perennial herb

2019 David Greenberger

2019 Belinda Lo

Arenaria congesta Ballhead Sandwort

native
Perennial herb

2020 Bob Sweatt

2022 Bob Sweatt

2020 Bob Sweatt

Arenaria congesta var. wheelerensis Ballhead Sandwort

native
Perennial herb

2020 Bob Sweatt

2022 Bob Sweatt

2020 Bob Sweatt

Eremogone congesta Ballhead Sandwort

native
Perennial herb

2020 Bob Sweatt

2022 Bob Sweatt

2020 Bob Sweatt

Eremogone congesta var. congesta Capitate sandwort

native
Perennial herb

2011 Steve Matson

2017 David popp

Eremogone congesta var. crassula Rough sandwort

native
Perennial herb

2008 Steve Matson

2023 Alaine Arslan

Eremogone congesta var. simulans Capitate sandwort

native
Perennial herb

1995 Saint Mary's College of California

Eremogone congesta var. subcongesta Capitate sandwort

native
Perennial herb

2011 Steve Matson

Eremogone congesta var. suffrutescens Suffrutescent sandwort

native
Perennial herb

2021 Mike Russler

Eremogone ferrisiae

native
Perennial herb

2019 Jim Morefield

2023 richard mcneill

2023 Bob Steele

Arenaria kingii King's sandwort

native
Perennial herb

2022 Steve Matson

Eremogone kingii King's sandwort

native
Perennial herb

2022 Steve Matson

Arenaria kingii var. glabrescens King's smooth sandwort

native
Perennial herb

2022 Steve Matson

Eremogone kingii var. glabrescens King's smooth sandwort

native
Perennial herb

2022 Steve Matson

Eremogone macradenia Mojave sandwort

native
Perennial herb

2016 Alison Sheehey

2019 Matt Berger

Eremogone macradenia var. arcuifolia Forest camp sandwort

native
Perennial herb

Eremogone macradenia var. macradenia Desert sandwort

native
Perennial herb

2019 Matt Berger

2011 Neal Kramer

Eremogone ursina Big bear valley sandwort

• rare native
Perennial herb

2019 Matt Berger

Camissonia boothii Booth's sun cup

native
Annual herb

2022 Steve Matson

Eremothera boothii Booth's sun cup

native
Annual herb

2022 Steve Matson

Camissonia boothii var. alyssoides Pine creek evening-primrose

• rare native
Annual herb

2011 Gerald Carr

Eremothera boothii ssp. alyssoides Pine creek evening-primrose

• rare native
Annual herb

2011 Gerald Carr

Eremothera boothii ssp. boothii Booth's evening-primrose

• rare native
Annual herb

2023 Cesar Garcia

2012 Keir Morse

Camissonia boothii ssp. condensata Clustered booth's desert primrose

native
Annual herb

2016 Steve Matson

Eremothera boothii ssp. condensata Clustered booth's desert primrose

native
Annual herb

2016 Steve Matson

Camissonia boothii ssp. decorticans Shredding evening-primrose

native
Annual herb

2019 Matt Berger

2020 David Greenberger

2020 Bryant Baker

Eremothera boothii ssp. decorticans Shredding evening-primrose

native
Annual herb

2019 Matt Berger

2020 David Greenberger

2020 Bryant Baker

Eremothera boothii ssp. desertorum Booth's desert primrose, Desert suncup

native
Annual herb

2011 Steve Matson

2019 Steve Matson

Eremothera chamaenerioides Long fruit suncup

native
Annual herb

2019 Matt Berger

Camissonia minor Nelson's evening-primrose

• rare native
Annual herb

2011 Robert Carr

Camissonia refracta Narrow leaved primrose

native
Annual herb

$Camissonia refracta$

2020 Steve Matson

$Camissonia refracta$

2020 Steve Matson

$Camissonia refracta$

2020 Steve Matson

Eremothera refracta Narrow leaved primrose

native
Annual herb

$Eremothera refracta$

2020 Steve Matson

$Eremothera refracta$

2020 Steve Matson

$Eremothera refracta$

2020 Steve Matson

Eriastrum abramsii Abrams' eriastrum, Abrams' woollystar

native
Annual herb

2019 Diane Renshaw

2021 Alice Cummings

2019 Stacie Wolny

Eriastrum brandegeeae Brandegee's eriastrum

• rare native
Annual herb

2022 Steve Laymon

Eriastrum calocyanum pretty blue woolly star

native
Annual herb

2018 Amelia Ryan

2022 Ryan O'Dell

2018 Ryan O'Dell

Eriastrum densifolium Giant eriastrum, Giant woollystar, Perennial woodstar

native
Perennial herb

2022 Steve Matson

Eriastrum densifolium ssp. austromontanum Perennial vool star, Southern mountain eriastrum

native
Perennial herb

Eriastrum densifolium ssp. austromontanum

2022 Mike Russler

Eriastrum densifolium ssp. densifolium Giant eriastrum

native
Perennial herb

2018 Cindy Roessler

2023 Ron Vanderhoff

Eriastrum densifolium ssp. elongatum Giant eriastrum, Perennial wool star

native
Perennial herb

2019 Michael Mitchell

2009 Keir Morse

Eriastrum densifolium ssp. mohavense Mojave eriastrum, Perennial vool star

native
Perennial herb

2022 Steve Matson

2010 Steve Matson

2022 Steve Matson

Eriastrum densifolium ssp. sanctorum Santa ana river woollystar

• rare native
Perennial herb

2021 Aaron Echols

2015 Ron Vanderhoff

2014 Ron Vanderhoff

Eriastrum diffusum Miniature wool star, Miniature eriastrum, Miniature woollystar

native
Annual herb

2020 Steve Matson

Eriastrum eremicum Desert woollystar

native
Annual herb

2019 Diane Etchison

2017 Ashley Olive

2020 David Greenberger

Eriastrum eremicum ssp. eremicum Desert eriastrum, Desert wool star, Desert woollystar

native
Annual herb

2017 Bonnie Nickel

2024 Olesya Konovalova

Eriastrum ertterae Lime ridge eriastrum

• rare native
Annual herb

2018 Chris McCarron

Eriastrum filifolium Lavender eriastrum, Lavender woollystar

native
Annual herb

2017 Diane Etchison

2013 Keir Morse

Eriastrum harwoodii Harwood's eriastrum

• rare native
Annual herb

2017 Fred Melgert / Carla Hoegen

2008 Steve Matson

Eriastrum hooveri Hoover's eriastrum, Hoover's woollystar

• rare native
Annual herb

2020 Marlee Antill

2023 Mike Russler

Eriastrum luteum Yellow flowered eriastrum, Yellow woollystar

• rare native
Annual herb

2005 Aaron Schusteff

2011 Chris Winchell

Eriastrum pluriflorum Many flowered eriastrum, Tehachapi woollystar

native
Annual herb

2021 Mike Russler

2022 David Strauch

Eriastrum pluriflorum ssp. pluriflorum Many-flowered eriastrum

native
Annual herb

2021 Mike Russler

2017 George Butterworth

2021 Mike Russler

Eriastrum pluriflorum ssp. sherman-hoytiae Mrs. Hoyt's woolly-star

native
Annual herb

Eriastrum pluriflorum ssp. sherman-hoytiae

2011 Aaron Schusteff

2018 John Doyen

Eriastrum rosamondense Rosamond eriastrum

• rare native
Annual herb

2020 Steve Matson

2017 Greg Hampton

2020 Steve Matson

Eriastrum sapphirinum Sapphire eriastrum, Sapphire woollystar

native
Annual herb

2018 Diane Etchison

2014 Steve Matson

Eriastrum sapphirinum ssp. brevibracteatum Sapphire woollystar

native
Annual herb

Eriastrum sapphirinum ssp. brevibracteatum

2014 Steve Matson

Eriastrum sapphirinum ssp. dasyanthum Sapphire woollystar

native
Annual herb

2018 Diane Etchison

2020 Ron Vanderhoff

2023 Ron Vanderhoff

Eriastrum sapphirinum ssp. sapphirinum Sapphire woollystar

native
Annual herb

2021 R.A. Chasey

2013 Keir Morse

2021 R.A. Chasey

Eriastrum signatum Maroon-spotted Woollystar

native
Annual herb

2022 Bob Sweatt

2023 Mike Russler

Eriastrum sparsiflorum Few flowered vool star, Great basin eriastrum, Great basin woollystar

• rare native
Annual herb

2018 Mary Merriman

2020 Steve Matson

Eriastrum tracyi Tracy's eriastrum

• rare native
Annual herb

2020 David Greenberger

2023 Aidan Marshall

2021 Steve Laymon

Eriastrum virgatum Virgate eriastrum, Wand woollystar

• rare native
Annual herb

2019 David Greenberger

2022 Irene Rosen

2021 Ryan Carle

Eriastrum wilcoxii Wilcox's eriastrum, Wilcox's woollystar

native
Annual herb

2015 Steve Matson

2011 Steve Matson

2022 Steve Matson

Erica canaliculata Hairy grey heather

non-native
Shrub

2012 Aviva Rossi

2011 Zoya Akulova

2012 Dana Morawitz

Erica lusitanica Spanish heather

• invasive non-native
Shrub

2021 Patrick Hoffman

2022 Patrick Hoffman

Chrysothamnus albidus White flowered rabbitbrush

• rare native
Shrub

2016 Steve Matson

Ericameria albida White flowered rabbitbrush

• rare native
Shrub

2016 Steve Matson

Ericameria arborescens Golden fleece, Goldenfleece

native
Shrub

2019 Bryant Baker

2015 Hayley Ross

Ericameria bloomeri Bloomer's goldenbush, Goldenweed, Rabbitbush

native
Shrub

2006 Steve Matson

Ericameria brachylepis Boundary goldenbush, Chaparral goldenbush

native
Shrub

2013 Keir Morse

Ericameria cooperi Cooper's goldenbush

native
Shrub

2022 Steve Matson

Ericameria cooperi var. cooperi Cooper goldenbush, Cooper's goldenbush

native
Shrub

2011 Steve Matson

2012 Steve Matson

Ericameria cuneata Cliff goldenbush, Desert rock goldenbush, Wedgeleaf goldenbush

native
Shrub

2022 Suzanne L. Weakley

2022 Mike Russler

Ericameria cuneata var. cuneata Cliff goldenbush, Rock goldenbush

native
Shrub

2011 Steve Matson

2015 Steve Matson

Ericameria cuneata var. macrocephala Cliff goldenbush, Laguna mtns. goldenbush

• rare native
Shrub

2014 Keir Morse

Ericameria cuneata var. spathulata Cliff goldenbush, Wide leaved rock goldenbush

native
Shrub

2020 R.A. Chasey

2019 Matt Berger

2018 Matt Berger

Ericameria discoidea Macronema goldenbush, Rayless goldenbush, Whitestem goldenbush

native
Shrub

2003 Steve Matson

2016 Steve Matson

Ericameria ericoides California goldenbush, Mock heather

native
Shrub

2021 Mike Russler

2021 Suzanne L. Weakley

2021 Mike Russler

Ericameria fasciculata Eastwood's goldenbush

• rare native
Shrub

2022 R.A. Chasey

Sally Childs

Ericameria gilmanii Gilman's goldenbush, Whiteflower goldenbush

• rare native
Shrub

2020 Matt Berger

2011 Steve Matson

Ericameria greenei Greene's goldenbush, Greene's goldenweed

native
Shrub

2009 Gerald Carr

2020 R.A. Chasey

Ericameria laricifolia Turpentine brush, Turpentine bush

native
Shrub

2004 James M. Andre

2005 James M. Andre

2010 Jean Pawek

Ericameria linearifolia Interior goldenbush, Linear leaved goldenbush, Narrowleaf goldenbush

native
Shrub

2014 Steve Matson

Ericameria nana Dwarf goldenbush, Rubberweed

• rare native
Shrub

2011 Steve Matson

Chrysothamnus nauseosus Rubber rabbitbrush

native
Shrub

2018 Richard Spjut

2010 Gerald Carr

Chrysothamnus nauseosus var. speciosa Rubber rabbitbrush

native
Shrub

2018 Richard Spjut

2010 Gerald Carr

Ericameria nauseosa Rubber rabbitbrush

native
Shrub

2018 Richard Spjut

2010 Gerald Carr

Ericameria nauseosa var. albicaulis Rubber rabbitbrush

native
Shrub

2018 Richard Spjut

2010 Gerald Carr

Ericameria nauseosa var. bigelovii Rubber rabbitbrush

native
Shrub

2018 Richard Spjut

2010 Gerald Carr

Ericameria nauseosa var. glabrata Rubber rabbitbrush

native
Shrub

2018 Richard Spjut

2010 Gerald Carr

Ericameria nauseosa var. graveolens Rubber rabbitbrush

native
Shrub

2018 Richard Spjut

2010 Gerald Carr

Ericameria nauseosa var. latisquamea Rubber rabbitbrush

native
Shrub

2018 Richard Spjut

2010 Gerald Carr

Ericameria nauseosa var. nauseosa Rubber rabbitbrush

native
Shrub

2018 Richard Spjut

2010 Gerald Carr

Ericameria nauseosa var. bernardina San bernardino rubber rabbitbrush

native
Shrub

2021 Joanna Clines

2022 Arlee Montalvo

Ericameria nauseosa var. ceruminosa Sharp bracted rabbitbrush

native
Shrub

2024 Manzanita Dictionary

Chrysothamnus nauseosus ssp. gnaphalodes Common rabbitbrush

native
Shrub

Chrysothamnus nauseosus ssp. gnaphalodes

2024 Manzanita Dictionary

2022 Steve Matson

Chrysothamnus nauseosus var. hololeucus Common rabbitbrush

native
Shrub

2024 Manzanita Dictionary

2022 Steve Matson

Ericameria nauseosa var. hololeuca Common rabbitbrush

native
Shrub

2024 Manzanita Dictionary

2022 Steve Matson

Ericameria nauseosa var. leiosperma Common rabbitbrush

native
Shrub

2021 R.A. Chasey

Ericameria nauseosa var. mohavensis Mojave rabbitbrush

native
Shrub

2018 Richard Spjut

2022 Helen Hancock

2022 R.A. Chasey

Chrysothamnus nauseosus ssp. consimilis Rubber rabbitbrush

native
Shrub

2012 James Gonsman

2016 Steve Matson

Ericameria nauseosa ssp. consimilis var. oreophila Rubber rabbitbrush

native
Shrub

Ericameria nauseosa ssp. consimilis var. oreophila

2012 James Gonsman

2016 Steve Matson

Ericameria nauseosa var. oreophila Rubber rabbitbrush

native
Shrub

2012 James Gonsman

2016 Steve Matson

Chrysothamnus nauseosus ssp. albicaulis Showy Rabbitbrush

native
Shrub

2020 R.A. Chasey

2021 Mike Russler

2010 Gerald Carr

Ericameria nauseosa var. speciosa Showy Rabbitbrush

native
Shrub

2020 R.A. Chasey

2021 Mike Russler

2010 Gerald Carr

Ericameria ophitidis Serpentine goldenbush, Serpentine macronema

• rare native
Shrub

2005 Dean Wm. Taylor

Shasta-Trinity National Forest

2017 Belinda Lo

Ericameria palmeri Palmer goldenweed, Palmer's goldenbush

native
Shrub

2020 Ron Vanderhoff

Ericameria palmeri var. pachylepis Broad scaled palmer's goldenbush, Palmer's rabbitbrush

native
Shrub

2024 Ron Vanderhoff

2021 Ron Vanderhoff

Ericameria palmeri var. palmeri Palmer goldenweed, Palmer's goldenbush, Palmer's rabbitbrush

• rare native
Shrub

2016 Keir Morse

2005 Vince Scheidt

2014 Zoya Akulova

Ericameria paniculata Mojave rabbitbrush, Black-banded rabbitbrush

native
Perennial herb

2015 Steve Matson

Ericameria parishii Parish's rabbitbrush

native
Shrub

2020 Maisie Borg

2017 Keir Morse

2010 Laura Camp

Ericameria parishii var. parishii Parish goldenweed, Parish's goldenbush

native
Shrub

2023 Ron Vanderhoff

2020 Maisie Borg

2023 Ron Vanderhoff

Chrysothamnus parryi ssp. parryi Parry's rabbitbrush

native
Shrub

2016 Steve Matson

2022 Mike Russler

2021 Mike Russler

Ericameria parryi Parry's rabbitbrush

native
Shrub

2016 Steve Matson

2022 Mike Russler

2021 Mike Russler

Ericameria parryi var. parryi Parry's rabbitbrush

native
Shrub

2016 Steve Matson

2022 Mike Russler

2021 Mike Russler

Ericameria parryi var. aspera Rough parry's rabbitbrush

native
Shrub

2020 Steve Matson

2015 Steve Matson

Ericameria parryi var. latior Parry's rabbitbrush

native
Shrub

2018 Matt Berger

2019 David popp

Ericameria parryi var. monocephala Parry's rabbitbrush

native
Shrub

2015 Barry Breckling

2012 Steve Matson

2008 Gary A. Monroe

Ericameria parryi var. nevadensis Parry's rabbitbrush

native
Shrub

2021 Ryan Carle

2021 Mike Russler

2021 Ryan Carle

Ericameria parryi var. vulcanica Parry's rabbitbrush

native
Shrub

2022 Mike Russler

Ericameria pinifolia Pine bush, Pinebush

native
Shrub

2022 Ron Vanderhoff

2015 Keir Morse

2022 Ron Vanderhoff

Ericameria suffruticosa Alpine macronema, Heath goldenrod, Singlehead goldenbush

native
Shrub

2015 Steve Matson

Ericameria teretifolia Green rabbitbrush

native
Shrub

2011 Steve Matson

2022 Steve Matson

2011 Steve Matson

Erigeron aequifolius Hall's daisy, Hall's fleabane

• rare native
Perennial herb (rhizomatous)

2018 Steve Matson

Erigeron algidus Stalked fleabane

native
Perennial herb

2006 Steve Matson

Erigeron aliceae Alice eastwood's fleabane

native
Perennial herb

2022 Dana York

2003 Dianne Fristrom

Erigeron annuus Annual fleabane, Eastern daisy fleabane

non-native
Annual herb

2005 Dr. Amadej Trnkoczy

2008 Jason E. Willand

Erigeron annuus ssp. annuus Annual fleabane, Eastern daisy fleabane

non-native
Annual herb

2005 Dr. Amadej Trnkoczy

2008 Jason E. Willand

Erigeron aphanactis Rayless shaggy fleabane

native
Perennial herb

2020 Steve Matson

Erigeron aphanactis var. aphanactis Rayless shaggy fleabane

native
Perennial herb

2020 Steve Matson

2019 Matt Berger

Erigeron aphanactis var. congestus Clustered fleabane, Rayless shaggy fleabane

native
Perennial herb

2019 Matt Berger

2018 Diane Etchison

2021 R.A. Chasey

Erigeron argentatus Silver fleabane

native
Perennial herb

2016 Steve Matson

Erigeron barbellulatus Shining daisy, Shining fleabane

native
Perennial herb

2016 Brett Dean

2019 Bob Sweatt

2022 Alaine Arslan

Erigeron biolettii Biolett's erigeron, Streamside daisy

• rare native
Perennial herb

2023 R.A. Chasey

2019 R.A. Chasey

Erigeron blochmaniae Blochman's erigeron, Blochman's leafy daisy

• rare native
Perennial herb (rhizomatous)

2003 Christopher L. Christie

2010 Chris Winchell

Erigeron bloomeri Scabland fleabane

native
Perennial herb

2017 John Game

2005 Steve Matson

2017 Julie A. Kierstead

Erigeron bloomeri var. bloomeri Scabland fleabane

native
Perennial herb

2007 Steve Matson

2020 R.A. Chasey

2008 Steve Matson

Erigeron bloomeri var. nudatus Scabland fleabane, Waldo daisy

• rare native
Perennial herb

2008 Norman Jensen

Conyza bonariensis Flax-leaved horseweed

non-native
Annual herb

2021 Donald Burk

2017 Gary McDonald

2023 Ron Vanderhoff

Erigeron bonariensis Flax-leaved horseweed

non-native
Annual herb

2021 Donald Burk

2017 Gary McDonald

2023 Ron Vanderhoff

Erigeron breweri Brewer's fleabane

native
Perennial herb

2020 Bob Sweatt

2021 Mike Russler

2022 Steve Matson

Erigeron breweri var. breweri Brewer's daisy, Brewer's fleabane

native
Perennial herb

2021 Mike Russler

Erigeron breweri var. covillei Coville erigeron, Coville's erigeron, Coville's fleabane

native
Perennial herb

2019 David Greenberger

2018 Tom Chester

Erigeron breweri var. jacinteus Brewer's fleabane, San Jacinto Mountains daisy

• rare native
Perennial herb (rhizomatous)

2009 Neal Kramer

2017 Steve McWilliams

2009 Thomas Stoughton

Erigeron breweri var. porphyreticus Brewer's fleabane, Fleabane

native
Perennial herb

2022 Steve Matson

Conyza canadensis Canada horseweed

native
Annual herb

2017 Gary McDonald

2022 Mike Russler

Conyza canadensis var. canadensis Canada horseweed

native
Annual herb

2017 Gary McDonald

2022 Mike Russler

Erigeron canadensis Canada horseweed

native
Annual herb

2017 Gary McDonald

2022 Mike Russler

Erigeron cervinus Siskiyou daisy, Siskiyou fleabane

• rare native
Perennial herb (rhizomatous)

2019 Dana York

2015 John Doyen

2019 Dana York

Erigeron chrysopsidis Dwarf yellow fleabane

native
Perennial herb

2006 Steve Matson

2014 Gerald Carr

Erigeron chrysopsidis var. austiniae Rebecca austin's fleabane

native
Perennial herb

2014 Gerald Carr

Erigeron clokeyi Clokey's fleabane

native
Perennial herb

2005 Steve Matson

2015 Steve Matson

2005 Steve Matson

Erigeron clokeyi var. pinzliae Clokey's fleabane

native
Perennial herb

2012 Steve Matson

Erigeron compactus Fern leaved fleabane, Fernleaf fleabane

• rare native
Perennial herb

2019 Steve Matson

2016 Steve Matson

2009 Steve Matson

Erigeron compactus var. compactus Fern leaved fleabane, Fernleaf fleabane

• rare native
Perennial herb

2019 Steve Matson

2016 Steve Matson

2009 Steve Matson

Erigeron compositus Cut leaved daisy, Cutleaf daisy, Cut-leaf Fleabane

native
Perennial herb

2006 Steve Matson

2014 Steve Matson

Erigeron compositus var. glabratus Cut leaved daisy, Cutleaf daisy, Cut-leaf Fleabane

native
Perennial herb

2006 Steve Matson

2014 Steve Matson

Erigeron concinnus Navajo fleabane

native
Shrub (stem succulent)

2004 James M. Andre

2010 Neal Kramer

Erigeron concinnus var. concinnus Navajo fleabane, Shaggy daisy, Tidy fleabane

native
Shrub (stem succulent)

2010 Neal Kramer

2016 John Doyen

2010 Neal Kramer

Erigeron coulteri Coulter's daisy, Coulter's fleabane, Large mountain fleabane

native
Perennial herb

2020 Bob Sweatt

2020 John Rawlings

Erigeron divergens Diffuse daisy, Spreading fleabane

native
Biennial, Perennial herb

2022 Mike Russler

2023 Donald Burk

2021 Mike Russler

Erigeron eatonii Eaton's daisy

native
Perennial herb

2012 Gerald Carr

Erigeron eatonii var. nevadincola Eaton's fleabane, Nevada daisy

• rare native
Perennial herb

2017 John Doyen

2023 Alaine Arslan

2020 John Doyen

Erigeron eatonii var. plantagineus Eaton's daisy, Eaton's fleabane

native
Perennial herb

2012 Gerald Carr

Erigeron eatonii var. sonnei Eaton's fleabane, Sonne's daisy

native
Perennial herb

2001 Gary A. Monroe

2010 Barry Breckling

Erigeron elegantulus Blue dwarf fleabane, Volcanic daisy

• rare native
Perennial herb

2022 Trevor Schalla

2018 Cynthia Powell

Erigeron elmeri Elmer's erigeron

native
Perennial herb

2010 Dr. Dean Taylor

Erigeron filifolius Threadleaf fleabane

native
Perennial herb

2007 Steve Matson

2019 Susan McDougall

Erigeron flagellaris Trailing fleabane

native
Perennial herb

2013 Jean Pawek

Erigeron foliosus Leafy daisy, Leafy fleabane

native
Perennial herb

2022 Ron Vanderhoff

2022 Ryan O'Dell

2023 R.A. Chasey

Erigeron foliosus var. confinis Leafy fleabane

native
Perennial herb

2023 Dana York

2007 Keir Morse

Erigeron foliosus var. foliosus Leafy fleabane, Thread stemmed fleabane

native
Perennial herb, Shrub

2023 Ron Vanderhoff

2021 Jacob Martin

2022 Ron Vanderhoff

Erigeron foliosus var. franciscensis Franciscan erigeron, San francisco leafy fleabane

native
Perennial herb

2023 R.A. Chasey

2023 John Rawlings

Erigeron foliosus var. hartwegii Hartweg's fleabane

native
Perennial herb

2016 Steve Matson

2019 David Greenberger

Erigeron foliosus var. mendocinus Mendocino erigeron, Mendocino fleabane

native
Perennial herb

2022 Dana York

2021 Dana York

Erigeron formosissimus Beautiful fleabane

non-native
Perennial herb

2004 Robert Sivinski

Erigeron formosissimus var. viscidus Beautiful fleabane

non-native
Perennial herb

2004 Robert Sivinski

Erigeron glacialis Wandering fleabane

native
Perennial herb

2023 Mike Russler

2021 Mike Russler

2022 Alaine Arslan

Erigeron peregrinus Wandering fleabane

native
Perennial herb

2023 Mike Russler

2021 Mike Russler

2022 Alaine Arslan

Erigeron glacialis var. glacialis Wandering fleabane

native
Perennial herb

2022 Dana York

2021 Mike Russler

Erigeron peregrinus var. callianthemus Wandering fleabane

native
Perennial herb

2022 Dana York

2021 Mike Russler

Erigeron glacialis var. hirsutus Wandering fleabane

native
Perennial herb

2022 John Rawlings

2009 Barry Breckling

2011 Wynn Anderson

Erigeron peregrinus var. hirsutus Wandering fleabane

native
Perennial herb

2022 John Rawlings

2009 Barry Breckling

2011 Wynn Anderson

Erigeron glaucus Seaside daisy, Seaside fleabane

native
Perennial herb

2023 Toni Corelli

2019 James Gonsman

2018 Asa B Spade

Erigeron greenei Greene's narrow-leaved daisy

• rare native
Perennial herb

2018 John Game

2023 R.A. Chasey

Erigeron inornatus California rayless daisy, California rayless fleabane, Western Rayless Fleabane

native
Perennial herb

2006 Steve Matson

Erigeron inornatus var. calidipetris California rayless fleabane, Hot rock daisy

• rare native
Perennial herb

2011 Anthony Baniaga

2006 Dean Wm. Taylor

Erigeron inornatus var. inornatus California rayless daisy, California rayless fleabane, Fleabane

native
Perennial herb

2020 Bob Sweatt

2020 R.A. Chasey

2014 John Doyen

Erigeron karvinskianus Fleabane, Latin american fleabane

• invasive non-native
Perennial herb

2023 R.A. Chasey

2019 Gary McDonald

2023 R.A. Chasey

Erigeron klamathensis Klamath fleabane

native
Perennial herb

2022 Dana York

2017 Dana York

Erigeron lassenianus Mt. lassen fleabane

native
Perennial herb

2019 Julie Kierstead Nelson

2017 David popp

2007 George W. Hartwell

Erigeron lassenianus var. deficiens Mt. lassen fleabane

• rare native
Perennial herb

2017 David popp

2013 Dean Wm. Taylor, Ph.D.

2012 Melanie S. Williams

Erigeron flexuosus Mt. lassen daisy, Mt. lassen fleabane

native
Perennial herb

2019 Julie Kierstead Nelson

2021 David popp

2019 Julie Kierstead Nelson

Erigeron lassenianus var. lassenianus Mt. lassen daisy, Mt. lassen fleabane

native
Perennial herb

2019 Julie Kierstead Nelson

2021 David popp

2019 Julie Kierstead Nelson

Erigeron linearis Desert yellow fleabane, Narrow leaved fleabane

native
Perennial herb

2022 Bob Sweatt

2020 Susan McDougall

2014 Richard Spellenberg

Erigeron lonchophyllus Shortray fleabane

native
Perennial herb

2008 Steve Matson

2015 Mary Merriman

Trimorpha lonchophylla Shortray fleabane

native
Perennial herb

2008 Steve Matson

2015 Mary Merriman

Erigeron maniopotamicus Mad river fleabane daisy

• rare native
Perennial herb

2007 Maria Hemenway

2007 Maria J. Boudreaux

Erigeron miser Starved daisy, Starved fleabane

• rare native
Perennial herb

2004 Steve Matson

2023 Dana York

Erigeron multiceps Kern river daisy, Kern river fleabane

• rare native
Perennial herb

2021 David Greenberger

2003 Yulan Tong

Erigeron neomexicanus New mexico fleabane

non-native
Annual herb

Erigeron nivalis Northern daisy

• rare native
Perennial herb

2023 Dana York

Erigeron parishii Parish fleabane, Parish's daisy, Parish's fleabane

• rare native
Perennial herb

2017 Thomas Egan

2021 Maisie Borg

Erigeron petrophilus Cliff fleabane, Rockloving erigeron, Rock-Loving Fleabane

native
Perennial herb

2014 Steve Matson

Erigeron petrophilus var. petrophilus Cliff fleabane, Rockloving erigeron

native
Perennial herb

2019 Ken Hickman

2022 Ellen Uhler

2018 Adam Chasey

Erigeron petrophilus var. sierrensis Northern sierra daisy, Sierra erigeron

• rare native
Perennial herb (rhizomatous)

2019 David popp

2017 David popp

2018 David popp

Erigeron petrophilus var. viscidulus Klamath daisy, Rockloving erigeron

• rare native
Perennial herb (rhizomatous)

2014 Steve Matson

Erigeron philadelphicus Philadelphia fleabane

native
Perennial herb

2023 R.A. Chasey

2021 R.A. Chasey

2023 R.A. Chasey

Erigeron philadelphicus var. provancheri Philadelphia fleabane

native
Perennial herb

Erigeron philadelphicus var. provancheri

2023 R.A. Chasey

2021 R.A. Chasey

2023 R.A. Chasey

Erigeron philadelphicus var. philadelphicus Philadelphia fleabane

native
Perennial herb

Erigeron philadelphicus var. philadelphicus

2021 R.A. Chasey

2022 Dana York

2021 R.A. Chasey

Erigeron pumilus Shaggy fleabane

native
Perennial herb

Geoff Burleigh

Erigeron pumilus var. intermedius Shaggy fleabane

native
Perennial herb

1995 Saint Mary's College of California

1995 Saint Mary's College of California

2018 David popp

Erigeron pygmaeus Pygmy fleabane

native
Perennial herb

2020 Bob Sweatt

2014 Steve Matson

Erigeron reductus Fleabane, Lesser california rayless fleabane, Rayless daisy

native
Perennial herb

2022 Helen Hancock

2023 Ryan O'Dell

2023 R.A. Chasey

Erigeron reductus var. angustatus Lesser california rayless fleabane, Narrow leaved rayless daisy, Pine erigeron

native
Perennial herb

2022 Helen Hancock

Erigeron reductus var. reductus California rayless daisy, Lesser california rayless fleabane

native
Perennial herb

2017 Chelsea Morgan

2001 Dean Wm. Taylor

Erigeron sanctarum Saints' daisy, Saints' fleabane

• rare native
Perennial herb (rhizomatous)

2016 David Wolfson

2000 John Game

Erigeron serpentinus Serpentine daisy, Serpentine erigeron

• rare native
Perennial herb

2021 R.A. Chasey

2010 Tony Morosco

Erigeron strigosus Prairie fleabane

non-native
Annual, Perennial herb

2015 Gerald Carr

2006 Penn Martin II

Erigeron strigosus var. dolomitica Prairie fleabane

non-native
Annual, Perennial herb

2015 Gerald Carr

2006 Penn Martin II

Erigeron sumatrensis Tropical horseweed

non-native
Annual herb

2021 Doug Allshouse

2020 Ron Vanderhoff

Erigeron supplex Supple daisy, Supple fleabane

• rare native
Perennial herb

2012 Asa Spade

2015 Aaron Arthur

2009 Halleh Paymard

Erigeron tener Slender fleabane

native
Perennial herb

2018 Matt Berger

Erigeron uncialis var. uncialis Limestone daisy

• rare native
Perennial herb

2020 John Game

2011 Steve Matson

2019 Matt Berger

Erigeron utahensis Utah fleabane

• rare native
Perennial herb

2015 Ron Wolf

2014 Ron Wolf

Erigeron utahensis var. utahensis Utah fleabane

• rare native
Perennial herb

2015 Ron Wolf

2014 Ron Wolf

Erigeron vagus Rambling fleabane

native
Perennial herb

2022 Cynthia Powell

2008 Steve Matson

Eriobotrya japonica Loquat

non-native
Tree

2015 Garth Wadsworth

2023 John Malpas

Eriochloa acuminata var. acuminata Taper tipped cupgrass, Tapertip cupgrass

native
Annual grass

2020 Debra Valov

2023 Donald Burk

Eriochloa aristata var. aristata Pointed cupgrass

native
Annual grass

2008 Steve Matson

Eriochloa contracta Dense cupgrass, Prairie cupgrass

non-native
Annual grass

2008 Steve Matson

Eriodictyon altissimum Indian knob mountainbalm

• rare native
Shrub

2024 Mike Russler

2015 David Wolfson

Eriodictyon angustifolium Narrow leaved yerba santa, Narrowleaf yerba santa

• rare native
Shrub

2020 David Greenberger

2019 Catherine Capone

2007 Trent M. Draper

Eriodictyon californicum California yerba santa, Yerba santa

native
Shrub

2023 Suzanne L. Weakley

2022 BOB CASE

2020 Julie A. Kierstead

Eriodictyon capitatum Lompoc yerba santa

• rare native
Shrub

Roxanne Bittman and CNPS

2013 Anuja Parikh and Nathan Gale

Eriodictyon crassifolium Felt leaved yerba santa, Thick leaved yerba santa, Thickleaf yerba santa

native
Shrub

2023 Julia Markey

2020 Bonnie Nickel

2021 Mary Herr

Eriodictyon crassifolium var. crassifolium Thick leaved yerba santa, Thickleaf yerba santa

native
Shrub

Eriodictyon crassifolium var. crassifolium

2019 Diane Etchison

2020 Diane Etchison

Eriodictyon crassifolium var. nigrescens Bicolored yerba santa, Thickleaf yerba santa

native
Shrub

Eriodictyon crassifolium var. nigrescens

2022 R.A. Chasey

2018 Ron Vanderhoff

Eriodictyon lobbii Matted yerba santa

native
Perennial herb

2006 Steve Matson

Eriodictyon parryi Poodle-dog bush

native
Perennial herb

2019 Wendy Walker

2019 Bryant Baker

2019 Matt Berger

Eriodictyon sessilifolium sessile-leaved yerba santa

• rare native
Perennial Herb

2019 Alec Christensen

Eriodictyon tomentosum Woolly yerba santa

native
Shrub

2021 Mike Russler

Eriodictyon traskiae ssp. smithii Smith's yerba santa

native
Shrub

2017 Keir Morse

2002 Lynn Watson

Eriodictyon traskiae ssp. traskiae Trask's yerba santa

native
Shrub

2018 Ron Vanderhoff

2010 Gary A. Monroe

Eriodictyon trichocalyx Hairy yerba santa

native
Shrub

2017 Keir Morse

2014 Garth Wadsworth

Eriodictyon trichocalyx var. lanatum Hairy yerba santa

native
Shrub

2012 Keir Morse

Eriodictyon trichocalyx var. trichocalyx Hairy yerba santa

native
Shrub

Eriodictyon trichocalyx var. trichocalyx

2020 Jim Andre

2017 Maisie Borg

2021 Arlee Montalvo

Eriogonum crosbyae Alexander's buckwheat

• rare native
Perennial herb

2015 Jim Morefield

Eriogonum alpinum Trinity buckwheat

• rare native
Perennial herb (rhizomatous)

2022 Glenn Fine

2014 Steve Matson

2019 Matt Berger

Eriogonum ampullaceum Mono buckwheat

native
Annual herb

2011 Steve Matson

Eriogonum angulosum Angled stem buckwheat, Anglestem buckwheat

native
Annual herb

2014 Steve Matson

2016 Steve Matson

2014 Steve Matson

Eriogonum apiculatum San Jacinto buckwheat

native
Annual herb

2012 Keir Morse

Eriogonum apricum Ione buckwheat

native
Perennial herb

2019 David Greenberger

2006 Steve Matson

Eriogonum apricum var. apricum Ione buckwheat

• rare native
Perennial herb

2006 Steve Matson

Eriogonum apricum var. prostratum Irish hill buckwheat

• rare native
Perennial herb

2001 George W. Hartwell

2009 George W. Hartwell

Eriogonum arborescens Santa cruz island buckwheat

native
Shrub

2020 Joerg Lohse

2020 Susan McDougall

2020 Joerg Lohse

Eriogonum argillosum Clay buckwheat, Clay loving buckwheat

• rare native
Annual herb

2023 Matt Berger

Eriogonum baileyi Bailey buckwheat, Bailey's buckwheat

native
Annual herb

2019 Diane Etchison

2019 Matt Berger

2019 Diane Etchison

Eriogonum baileyi var. baileyi Bailey's buckwheat

native
Annual herb

2022 Steve Matson

2005 Steve Matson

Eriogonum baileyi var. praebens Bailey's buckwheat

• rare native
Annual herb

2010 Steve Matson

Eriogonum bifurcatum Forked buckwheat, Pahrump valley buckwheat

• rare native
Annual herb

2010 Steve Matson

Eriogonum brachyanthum Short flowered buckwheat, Shortflower buckwheat, Yellow buckwheat

native
Annual herb

2022 Steve Matson

Eriogonum brachypodum Parry's buckwheat

native
Annual herb

2015 Steve Matson

2022 Steve Matson

Eriogonum breedlovei var. breedlovei Breedlove's buckwheat, Piute buckwheat

• rare native
Perennial herb

2021 Chris Leslie

Eriogonum breedlovei var. shevockii Needle's buckwheat, The needles buckwheat

• rare native
Perennial herb

2023 Aidan Marshall

Eriogonum butterworthianum Butterworth's buckwheat

• rare native
Perennial herb

2019 Scott Yarger

Eriogonum caespitosum Clumping buckwheat, Matted buckwheat

native
Perennial herb

2009 Steve Matson

2016 Steve Matson

2008 Steve Matson

Eriogonum callistum Tehachapi buckwheat

• rare native
Perennial herb

2014 Michael Charters

2014 Steve Matson

Eriogonum cedrorum The cedars buckwheat

• rare native
Perennial herb

2021 R.A. Chasey

2010 Tony Morosco

2021 R.A. Chasey

Eriogonum cernuum Nodding buckwheat

native
Annual herb

2015 Steve Matson

2011 Steve Matson

2015 Steve Matson

Eriogonum cernuum var. cernuum Nodding buckwheat

native
Annual herb

2015 Steve Matson

2011 Steve Matson

2015 Steve Matson

Eriogonum cernuum var. viminale Nodding buckwheat

native
Annual herb

2015 Steve Matson

2011 Steve Matson

2015 Steve Matson

Eriogonum cinereum Ashyleaf buckwheat, Coastal buckwheat, Grey coast eriogonum

native
Shrub

2022 Roger Gray

Eriogonum cithariforme Cithara buckwheat

native
Annual herb

2011 George Butterworth

Eriogonum cithariforme var. agninum Cithara buckwheat

native
Annual herb

2009 Adonis (Don) Tate

Eriogonum clavatum Hoover's buckwheat

native
Annual herb

2023 Matt Berger

2021 Mike Russler

2023 Matt Berger

Eriogonum collinum Hill buckwheat

• rare native
Annual herb

2010 Steve Matson

Eriogonum compositum Arrowleaf buckwheat

native
Perennial herb

2017 Steve Matson

2021 Steve Conger

Eriogonum compositum var. compositum Arrow leaf buckwheat, Arrowleaf buckwheat, Arrow-Leaf Wild Buckwheat

native
Perennial herb

2017 Steve Matson

Eriogonum congdonii Congdon's buckwheat

• rare native
Shrub

2014 Steve Matson

2019 Matt Berger

Eriogonum contiguum Reveal's buckwheat

• rare native
Annual herb

2020 Matt Berger

2016 Steve Matson

Eriogonum inflatum Reveal's buckwheat

• rare native
Annual herb

2020 Matt Berger

2016 Steve Matson

Eriogonum inflatum var. inflatum Reveal's buckwheat

• rare native
Annual herb

2020 Matt Berger

2016 Steve Matson

Eriogonum corymbosum Crispleaf buckwheat

non-native
Perennial herb

Eriogonum covilleanum Coville's buckwheat

native
Annual herb

2022 Mike Russler

Eriogonum crocatum Conejo buckwheat

• rare native
Perennial herb

2022 Aaron Echols

2020 Steven M Norris

Eriogonum dasyanthemum Chaparral buckwheat

native
Annual herb

2020 Charles Russell

2016 Steve Matson

Eriogonum davidsonii Davidson buckwheat, Davidson's buckwheat

native
Annual herb

2008 Steve Matson

Eriogonum deflexum Flat topped buckwheat, Flatcrown buckwheat, Skeleton weed

native
Annual herb

2023 Mike Russler

2020 Angelique Herman

2017 Keir Morse

Eriogonum deflexum var. baratum Flat topped buckwheat, Flatcrown buckwheat, Tall skeleton weed

native
Annual herb

2013 Steve Matson

2016 Steve Matson

Eriogonum deflexum var. deflexum Flat topped buckwheat, Flatcrown buckwheat

native
Annual herb

2019 Matt Berger

2011 Steve Matson

Eriogonum deflexum var. nevadense Flat topped buckwheat, Nevada buckwheat

native
Annual herb

2013 Barry Breckling

2010 Gary A. Monroe

2013 Barry Breckling

Eriogonum deserticola Colorado desert buckwheat

native
Shrub

2017 Fred Melgert / Carla Hoegen

2008 Michael Charters

Eriogonum diclinum Jaynes canyon buckwheat

• rare native
Perennial herb

2022 Dana York

2019 Matt Berger

Eriogonum douglasii var. douglasii Douglas' buckwheat

native
Perennial herb

2020 Bob Sweatt

2004 Christopher L. Christie

Eriogonum douglasii Douglas' buckwheat

native
Perennial herb

2023 Dana York

2019 Steve Ashcraft

Eriogonum douglasii var. meridionale Douglas' buckwheat

native
Perennial herb

2023 Dana York

2019 Steve Ashcraft

Eriogonum eastwoodianum Eastwood's buckwheat

• rare native
Annual herb

2021 Mike Russler

Eriogonum elatum Tall buckwheat, Tall woolly buckwheat

native
Perennial herb

2019 Matt Berger

2021 Julie A. Kierstead

Eriogonum elatum var. elatum Tall buckwheat, Tall woolly buckwheat

native
Perennial herb

2008 Steve Matson

2006 Steve Matson

Eriogonum elatum var. villosum Long hairy tall buckwheat, Tall woolly buckwheat

native
Perennial herb

2010 Steve Matson

2023 R.A. Chasey

2010 Steve Matson

Eriogonum elegans Elegant buckwheat

• rare native
Annual herb

2021 Mike Russler

Eriogonum elongatum Longstem buckwheat

native
Perennial herb

2022 David Strauch

2017 Ron Vanderhoff

2014 Julia King

Eriogonum elongatum var. elongatum Long stemmed buckwheat

native
Perennial herb

2017 Ron Vanderhoff

2019 Aaron Echols

2021 Mike Russler

Eriogonum eremicola Telescope peak buckwheat, Wildrose canyon buckwheat

• rare native
Annual herb

2007 Steve Matson

2011 Steve Matson

2007 Steve Matson

Eriogonum esmeraldense var. esmeraldense Esmeralda buckwheat

native
Annual herb

Eriogonum esmeraldense var. esmeraldense

2011 Steve Matson

2019 Matt Berger

Eriogonum evanidum Vanishing wild buckwheat

• rare native
Annual herb

2009 Duncan S. Bell

2008 Naomi Fraga

Eriogonum fasciculatum California buckwheat, Eastern mojave buckwheat

native
Shrub

2021 Phyllis Fitzsimons

2019 Ron Vanderhoff

2017 Ron Vanderhoff

Eriogonum fasciculatum var. fasciculatum California buckwheat, Eastern mojave buckwheat

native
Shrub

Eriogonum fasciculatum var. fasciculatum

2019 Ron Vanderhoff

Eriogonum fasciculatum var. flavoviride California buckwheat, Eastern mojave buckwheat

native
Shrub

2019 Matt Berger

Eriogonum fasciculatum var. foliolosum California buckwheat, Eastern mojave buckwheat, Red topped buckwheat

native
Shrub

2016 Michael Mitchell

2015 Michael Mitchell

Eriogonum fasciculatum var. polifolium California buckwheat, Eastern mojave buckwheat

native
Shrub

2022 Steve Matson

2022 Ron Vanderhoff

Eriogonum giganteum St. Catherine's lace

native
Shrub

2020 Ron Vanderhoff

Eriogonum giganteum var. compactum Santa barbara island buckwheat

• rare native
Shrub

2010 Steve Matson

Eriogonum giganteum var. formosum San clemente island buckwheat

• rare native
Shrub

2011 Dylan Neubauer

Eriogonum giganteum var. giganteum Santa catalina island buckwheat, St. catherine's lace

• rare native
Shrub

2016 Sunol Staff

Eriogonum gilmanii Gilman's buckwheat

• rare native
Perennial herb

2017 Steve Matson

2023 Dana York

2022 Dana York

Eriogonum glandulosum Acorn buckwheat, Glandular buckwheat

native
Annual herb

2019 Matt Berger

2019 Steve Matson

Eriogonum gossypinum Cottony buckwheat

• rare native
Annual herb

2019 James Bailey

2023 Matt Berger

Eriogonum gracile Slender buckwheat, Slender woolly buckwheat

native
Annual herb

2022 Mike Russler

2018 Fred Melgert / Carla Hoegen

2019 Hailey Laskey

Eriogonum gracile var. gracile Slender buckwheat, Slender woolly buckwheat

native
Annual herb

2021 Mike Russler

2022 Ron Vanderhoff

2023 Ron Vanderhoff

Eriogonum gracilipes White mountain buckwheat, White mountains buckwheat

native
Perennial herb

2022 Steve Matson

2011 Steve Matson

2022 Steve Matson

Eriogonum gracillimum Rose and white buckwheat, Slender stemmed buckwheat

native
Annual herb

2022 Ryan O'Dell

2023 R.A. Chasey

2021 R.A. Chasey

Eriogonum grande var. grande Island buckwheat, Redflower buckwheat

• rare native
Perennial herb

2020 David Greenberger

2017 B.J. Dion

2014 Steve Matson

Eriogonum grande var. rubescens Red flowered buckwheat, Redflower buckwheat

• rare native
Perennial herb

2006 Steve Matson

2022 Ron Vanderhoff

Eriogonum grande var. timorum San nicolas island buckwheat

• rare native
Perennial herb

2011 Vince Scheidt

2009 Vince Scheidt

Eriogonum heermannii Heerman buckwheat, Heermann's buckwheat

native
Shrub

2022 Steve Matson

Eriogonum heermannii var. clokeyi Heerman buckwheat, Heermann's buckwheat

native
Shrub

2022 Steve Matson

Eriogonum heermannii var. argense Heermann's buckwheat

native
Shrub

2011 Steve Matson

2016 Steve Matson

Eriogonum heermannii var. floccosum Clark mountain buckwheat, Clark mtn. buckwheat

• rare native
Shrub

2020 Matt Berger

Eriogonum heermannii var. heermannii Heermann's buckwheat

native
Shrub

2015 Keir Morse

Eriogonum heermannii var. humilius Heermann's buckwheat

native
Shrub

2011 Steve Matson

Eriogonum heermannii var. occidentale Western heermann's buckwheat

• rare native
Shrub

2021 Mike Russler

2022 Ryan O'Dell

Eriogonum heermannii var. sulcatum Heermann's buckwheat

native
Shrub

2019 Matt Berger

Eriogonum heracleoides var. heracleoides Parsnip flowered buckwheat, Parsnipflower buckwheat

• rare native
Perennial herb

Eriogonum heracleoides var. heracleoides

2009 Steven Perry

Eriogonum hirtellum Klamath mountain buckwheat, Klamath mtn. buckwheat

• rare native
Perennial herb (rhizomatous)

2009 Zoya Akulova

2010 Steve Matson

Eriogonum hirtiflorum Hairy flowered buckwheat, Hairyflower buckwheat

native
Annual herb

2020 Matt Berger

Eriogonum hoffmannii var. hoffmannii Hoffmann's buckwheat

• rare native
Annual herb

2011 Steve Matson

2019 Matt Berger

Eriogonum hoffmannii var. robustius Robust hoffmann's buckwheat

• rare native
Annual herb

2019 Matt Berger

Eriogonum hookeri Hooker's buckwheat

native
Annual herb

2023 Steve Matson

Eriogonum incanum Frosted buckwheat

native
Perennial herb

2010 Steve Matson

2021 Mike Russler

Eriogonum inerme Unarmed buckwheat

native
Annual herb

2019 James Bailey

Eriogonum intrafractum Jointed buckwheat, Napkinring

• rare native
Perennial herb

$Eriogonum intrafractum$

2020 Matt Berger

$Eriogonum intrafractum$

2020 Matt Berger

$Eriogonum intrafractum$

2020 Matt Berger

Eriogonum kelloggii Kellogg's buckwheat, Red mountain buckwheat

• rare native
Perennial herb

2008 Kaylea Eickhoff

2010 Steve Matson

2008 Kaylea Eickhoff

Eriogonum kennedyi Kennedy's buckwheat

native
Perennial herb

2019 Steve Matson

2012 Steve Matson

2019 Manzanita Dictionary

Eriogonum kennedyi var. alpigenum Southern alpine buckwheat

• rare native
Perennial herb

2021 Aaron Echols

2019 Manzanita Dictionary

Eriogonum kennedyi var. austromontanum Southern mountain buckwheat

• rare native
Perennial herb

2016 Richard Spjut

Geoff Burleigh

Eriogonum kennedyi var. kennedyi Kennedy's buckwheat

native
Perennial herb

2021 Bryant Baker

2020 Bryant Baker

2021 Bryant Baker

Eriogonum kennedyi var. pinicola Kern buckwheat

• rare native
Perennial herb

2019 Matt Berger

Eriogonum kennedyi var. purpusii Purpus' buckwheat

native
Perennial herb

2012 Steve Matson

2011 Steve Matson

Eriogonum latens Inyo buckwheat

native
Perennial herb

2014 Steve Matson

2019 Matt Berger

Eriogonum latifolium Coast buckwheat, Coast eriogonum, Seaside buckwheat

native
Perennial herb

2016 Suzanne L. Weakley

2021 Dylan Neubauer

2019 Patrick Furtado

Eriogonum libertini Dubakella mountain buckwheat, Dubakella mtn. buckwheat, Hoffman buckwheat

• rare native
Perennial herb

2019 Steve Matson

2011 Julie A. Kierstead

Eriogonum lobbii Lobb's buckwheat, Lobb's Wild Buckwheat

native
Perennial herb

2019 Matt Berger

2020 Bob Sweatt

2019 Matt Berger

Eriogonum lobbii var. lobbii Lobb's buckwheat, Lobb's Wild Buckwheat

native
Perennial herb

2019 Matt Berger

2020 Bob Sweatt

2019 Matt Berger

Eriogonum luteolum Golden buckwheat, Goldencarpet buckwheat, Wicker buckwheat

native
Annual herb

2011 Steve Matson

2020 Paul Aigner

Eriogonum luteolum var. caninum Tiburon buckwheat

• rare native
Annual herb

2020 R.A. Chasey

2021 R.A. Chasey

Eriogonum luteolum var. luteolum Golden buckwheat, Goldencarpet buckwheat

native
Annual herb

2011 Steve Matson

Eriogonum luteolum var. pedunculatum Goldencarpet buckwheat

native
Annual herb

2010 Steve Matson

2022 Mike Russler

Eriogonum maculatum Angle stermed buckwheat, Spotted buckwheat

native
Annual herb

2022 Steve Matson

Eriogonum marifolium Marum leaved buckwheat, Marumleaf buckwheat

native
Shrub

2015 Steve Matson

2019 Steve Matson

2015 Steve Matson

Eriogonum marifolium var. cupulatum Marum leaved buckwheat

native
Shrub

2012 Dean Wm. Taylor, Ph.D.

2013 Sierra Pacific Industries

Eriogonum marifolium var. marifolium Marum leaved buckwheat

native
Shrub

2015 Steve Matson

2019 Steve Matson

2015 Steve Matson

Eriogonum mensicola Crescent buckwheat

• rare native
Perennial herb, Shrub

2019 Matt Berger

Eriogonum microthecum Slender buckwheat

native
Perennial herb

2011 Steve Matson

2021 Bob Sweatt

2019 Matt Berger

Eriogonum microthecum var. laxiflorus Slender buckwheat

native
Perennial herb

2011 Steve Matson

2021 Bob Sweatt

2019 Matt Berger

Eriogonum microthecum var. ambiguum Yellow-flowered wild buckwheat

native
Perennial herb

2011 Steve Matson

2014 Steve Matson

Eriogonum microthecum var. laxiflorum Great basin wild buckwheat

native
Perennial herb

2011 Steve Matson

Eriogonum microthecum var. simpsonii Simpson's wild buckwheat

native
Perennial herb

2011 Keir Morse

Eriogonum microthecum var. alpinum Alpine slender buckwheat

• rare native
Shrub

2012 Barry Breckling

2016 John Doyen

Eriogonum microthecum var. corymbosoides San bernardino buckwheat

native
Shrub

Eriogonum microthecum var. corymbosoides

2009 Thomas Stoughton

2008 Thomas Stoughton

Eriogonum microthecum var. johnstonii Johnston's buckwheat

• rare native
Shrub

2024 Manzanita Dictionary

2010 Steve Matson

Eriogonum microthecum var. lacus-ursi Bear lake buckwheat

• rare native
Shrub

2013 Gary A. Monroe

Eriogonum microthecum var. lapidicola Inyo mtns. buckwheat, Slender buckwheat

• rare native
Shrub

2014 Steve Matson

Eriogonum microthecum var. panamintense Panamint buckwheat, Panamint mtns. buckwheat

• rare native
Shrub

2011 Steve Matson

2019 Matt Berger

Eriogonum mohavense Western mojave buckwheat

native
Annual herb

2020 Manzanita Dictionary

Eriogonum molestum Pineland buckwheat

native
Annual herb

2006 Michael Charters

Eriogonum nervulosum Snow Mountain buckwheat

• rare native
Perennial herb (rhizomatous)

2022 Ryan O'Dell

2009 Zoya Akulova

2010 Charles Patterson

Eriogonum ursinum var. nervulosum Snow Mountain buckwheat

• rare native
Perennial herb (rhizomatous)

2022 Ryan O'Dell

2009 Zoya Akulova

2010 Charles Patterson

Eriogonum nidularium Birdnest buckwheat, Whisk broom

native
Annual herb

2010 Steve Matson

2011 Steve Matson

2010 Steve Matson

Eriogonum nortonii Pinnacles buckwheat

• rare native
Annual herb

2018 Michael Mitchell

2019 David Greenberger

2015 Lynn Overtree

Eriogonum nudum Naked buckwheat, Nude buckwheat

native
Shrub

2011 Steve Matson

2014 Steve Matson

2008 Steve Matson

Eriogonum nudum var. deductum; Naked buckwheat, Nude buckwheat

native
Shrub

2011 Steve Matson

2014 Steve Matson

2008 Steve Matson

Eriogonum nudum var. auriculatum Naked buckwheat, Nude buckwheat

native
Shrub

2020 R.A. Chasey

Eriogonum nudum var. decurrens Ben lomond buckwheat, Benlomond buckwheat

• rare native
Perennial herb

2022 Cara Wilcox

2019 Amy Patten

2022 Cara Wilcox

Eriogonum nudum var. deductum Naked buckwheat

native
Shrub

2008 Steve Matson

Eriogonum nudum var. indictum Naked buckwheat, Protruding buckwheat

• rare native
Perennial herb

2021 Mike Russler

Eriogonum nudum var. murinum Mouse buckwheat

• rare native
Perennial herb

2022 Mike Russler

Eriogonum nudum var. nudum Naked buckwheat, Naked Wild Buckwheat, Nude buckwheat

native
Shrub

2021 Mike Russler

Eriogonum nudum var. oblongifolium Naked buckwheat, Oblong leaved buckwheat

native
Shrub

2016 Steve Matson

Eriogonum nudum var. paralinum Del norte buckwheat

• rare native
Perennial herb

2010 Steve Matson

Eriogonum nudum var. pauciflorum Few flowered buckwheat, Long trumpet, Naked buckwheat

native
Shrub

2014 Steve Matson

Eriogonum nudum var. psychicola Antioch dunes buckwheat

• rare native
Perennial herb

2019 Cathie Moog

2020 Cathie Moog

2022 Dianne Lake

Eriogonum nudum var. pubiflorum Hairy flowered buckwheat, Naked buckwheat, Fremont's Wild Buckwheat

native
Annual herb

2006 Steve Matson

2011 Steve Matson

Eriogonum nudum var. regirivum Kings river buckwheat

• rare native
Perennial herb

2007 Chris Winchell

Eriogonum nudum var. scapigerum Naked buckwheat

native
Shrub

2011 Steve Matson

Eriogonum nudum var. westonii Weston's buckwheat

native
Shrub

2022 Steve Matson

2011 Steve Matson

Eriogonum nummulare Money buckwheat, Round leaf buckwheat

native
Shrub

2011 Steve Matson

Eriogonum nutans var. nutans Dugway buckwheat, Nodding buckwheat

• rare native
Annual herb

2012 Steve Matson

Eriogonum ochrocephalum White woolly buckwheat, Whitewoolly buckwheat

native
Perennial herb

2010 Steve Matson

2012 Gary A. Monroe

2010 Steve Matson

Eriogonum ochrocephalum var. alexandrae White woolly buckwheat, Whitewoolly buckwheat

native
Perennial herb

2010 Steve Matson

2012 Gary A. Monroe

2010 Steve Matson

Eriogonum ochrocephalum var. ochrocephalum White woolly buckwheat, Whitewoolly buckwheat

• rare native
Perennial herb

Eriogonum ochrocephalum var. ochrocephalum

2010 Steve Matson

Eriogonum ordii Fort mojave buckwheat

native
Annual herb

2023 Matt Berger

Eriogonum ovalifolium Cushion buckwheat, Oval leaved eriogonum

native
Perennial herb

2022 R.A. Chasey

2019 Steve Matson

Eriogonum ovalifolium var. rubdum Cushion buckwheat, Oval leaved eriogonum

native
Perennial herb

2022 R.A. Chasey

2019 Steve Matson

Eriogonum ovalifolium var. rubidum Cushion buckwheat, Oval leaved eriogonum

native
Perennial herb

2022 R.A. Chasey

2019 Steve Matson

Eriogonum ovalifolium var. williamsiae Cushion buckwheat, Oval leaved eriogonum

native
Perennial herb

2022 R.A. Chasey

2019 Steve Matson

Eriogonum ovalifolium var. depressum Cushion buckwheat

• rare native
Perennial herb

2020 California Department of Fish and Wildlife

Eriogonum ovalifolium var. eximium Brown margined buckwheat, Brownmargin buckwheat, Cushion buckwheat

• rare native
Perennial herb

2004 Steve Matson

2020 Bob Sweatt

Eriogonum ovalifolium var. monarchense Monarch buckwheat

• rare native
Perennial herb

1996 Dana York

Eriogonum ovalifolium var. nivale Cushion buckwheat

native
Perennial herb

2008 Steve Matson

2022 R.A. Chasey

Eriogonum ovalifolium var. ovalifolium Cushion buckwheat

native
Perennial herb

2017 Tim Messick

2005 Steve Matson

Eriogonum ovalifolium var. purpureum Purple cushion buckwheat

native
Perennial herb

2019 Steve Matson

Eriogonum ovalifolium var. vineum Cushenbury buckwheat

• rare native
Perennial herb

2017 Thomas Egan

2023 Ron Vanderhoff

2017 Thomas Egan

Eriogonum palmerianum Palmer's buckwheat

native
Annual herb

2011 Steve Matson

Eriogonum panamintense Panamint mountain buckwheat

native
Perennial herb, Shrub

2022 Steve Matson

2014 Steve Matson

2022 Steve Matson

Eriogonum racemosum Panamint mountain buckwheat

native
Perennial herb, Shrub

2022 Steve Matson

2014 Steve Matson

2022 Steve Matson

Eriogonum parishii Mountainmist, Parish's buckwheat

native
Annual herb

2020 Aaron Echols

2021 Arlee Montalvo

2020 Aaron Echols

Eriogonum parvifolium Dune eriogonum, Sea cliff buckwheat, Seacliff buckwheat

native
Shrub

2022 Mary Conway

2020 Ron Vanderhoff

2021 Ron Vanderhoff

Eriogonum pendulum Waldo buckwheat

• rare native
Perennial herb

2009 Norman Jensen

2008 Keir Morse

Eriogonum plumatella Flat topped buckwheat, Yucca buckwheat

native
Shrub

2020 R.A. Chasey

2020 Matt Berger

Eriogonum polypodum Foxtail buckwheat, Tulare county buckwheat

• rare native
Perennial herb

2022 Mike Russler

Eriogonum prattenianum Nevada city buckwheat, Pratten's buckwheat

native
Perennial herb

2019 Matt Berger

2019 Steve Matson

Eriogonum prattenianum var. avium Kettle dome buckwheat, Nevada city buckwheat

• rare native
Perennial herb

2010 Steve Matson

Eriogonum prattenianum var. prattenianum Nevada city buckwheat, Pratten's buckwheat

native
Perennial herb

Eriogonum prattenianum var. prattenianum

2019 Steve Matson

Eriogonum prociduum Prostrate buckwheat

• rare native
Perennial herb

2010 Steve Matson

2001 John Game

Eriogonum pusillum Yellow turbans, Yellowturbans

native
Annual herb

2020 Steve Matson

2022 Steve Matson

Eriogonum pyrolifolium Shasta buckwheat

native
Perennial herb, Shrub

2019 Steve Matson

Eriogonum pyrolifolium var. coryphaeum Shasta buckwheat

native
Perennial herb, Shrub

2006 Keir Morse

Eriogonum pyrolifolium var. pyrolifolium Pumice buckwheat, Shasta buckwheat, Wintergreen leaved buckwheat

• rare native
Perennial herb, Shrub

Eriogonum pyrolifolium var. pyrolifolium

2019 Steve Matson

Eriogonum reniforme Kidney leaf buckwheat, Kidney leaved buckwheat, Kidneyleaf buckwheat

native
Annual herb

2011 Steve Matson

2010 Neal Kramer

2011 Steve Matson

Eriogonum rixfordii Pagoda buckwheat, Rixford's buckwheat

native
Annual herb

2011 Steve Matson

2019 Matt Berger

2011 Steve Matson

Eriogonum anemophilum Mt. rose buckwheat, Rosy buckwheat

native
Perennial herb

2019 Bob Sweatt

2004 Steve Matson

Eriogonum rosense Mt. rose buckwheat, Rosy buckwheat

native
Perennial herb

2019 Bob Sweatt

2004 Steve Matson

Eriogonum beatleyae Rosy buckwheat

native
Perennial herb

2004 Steve Matson

2011 Steve Matson

Eriogonum rosense var. rosense Rosy buckwheat

native
Perennial herb

2004 Steve Matson

2011 Steve Matson

Eriogonum roseum Wand buckwheat

native
Annual herb

2019 Matt Berger

2014 Steve Matson

Eriogonum rupinum Wyman creek buckwheat

native
Perennial herb, Shrub

2019 Matt Berger

2022 Steve Matson

2019 Matt Berger

Eriogonum saxatile Hoary buckwheat, Rock buckwheat, Rock eriogonum

native
Perennial herb

2017 Thomas Egan

2019 Dana York

2009 Ron Vanderhoff

Eriogonum shockleyi Shockley's buckwheat

native
Perennial herb

2011 Steve Matson

Eriogonum shockleyi var. shockleyi Shockley's buckwheat

• rare native
Perennial herb

2011 Steve Matson

2023 Dana York

2011 Steve Matson

Eriogonum siskiyouense Siskiyou buckwheat

• rare native
Perennial herb

2017 John Rawlings

2019 Matt Berger

2014 Steve Matson

Eriogonum spectabile Barron's buckwheat

• rare native
Shrub

2014 Tripp Mikich

2015 Tim Kellison

Eriogonum spergulinum Spurry buckwheat, Wild buckwheat

native
Annual herb

2020 Steve Matson

2019 Matt Berger

2020 Bob Sweatt

Eriogonum spergulinum var. pratense Spurry buckwheat

• rare native
Annual herb

2019 Matt Berger

2020 Matt Berger

Eriogonum spergulinum var. reddingianum Redding buckwheat, Spurry buckwheat, Redding's Wild Buckwheat

native
Annual herb

2014 Steve Matson

2020 Steve Matson

2019 Matt Berger

Eriogonum spergulinum var. spergulinum Spurry buckwheat

native
Annual herb

2005 Steve Matson

Eriogonum sphaerocephalum Rock buckwheat, Round headed buckwheat

native
Perennial herb

2006 Steve Matson

2022 David Magney

2006 Steve Matson

Eriogonum sphaerocephalum var. halimoides Rock buckwheat, Round headed buckwheat

native
Perennial herb

Eriogonum sphaerocephalum var. halimoides

2006 Steve Matson

2022 David Magney

2006 Steve Matson

Eriogonum sphaerocephalum var. halimioides Rock buckwheat, Round headed buckwheat

native
Perennial herb

Eriogonum sphaerocephalum var. halimioides

2006 Steve Matson

Eriogonum sphaerocephalum var. sphaerocephalum Rock buckwheat, Round headed buckwheat

native
Perennial herb

Eriogonum sphaerocephalum var. sphaerocephalum

2010 Steve Matson

2014 John Doyen

Eriogonum niveum Blue mountain buckwheat

native
Perennial herb

2017 David popp

2010 Gary A. Monroe

Eriogonum strictum Blue mountain buckwheat

native
Perennial herb

2017 David popp

2010 Gary A. Monroe

Eriogonum strictum ssp. proliferum var. anserinum Blue mountain buckwheat

native
Perennial herb

Eriogonum strictum ssp. proliferum var. anserinum

2008 Steve Matson

2006 Steve Matson

Eriogonum strictum var. anserinum Blue mountain buckwheat

native
Perennial herb

2008 Steve Matson

2006 Steve Matson

Eriogonum strictum var. greenei Greene's buckwheat

• rare native
Perennial herb

2017 Steve Matson

2010 Julie A. Kierstead

2020 R.A. Chasey

Eriogonum strictum var. proliferum Blue mountain buckwheat, Blue mountain eriogonum, Proliferous Wild Buckwheat

native
Perennial herb

2014 Steve Matson

Eriogonum temblorense Temblor buckwheat

• rare native
Annual herb

2023 Matt Berger

Eriogonum ternatum Ternate buckwheat

• rare native
Perennial herb

2021 Don Hollander

Eriogonum thomasii Thomas eriogonum, Thomas' buckwheat

native
Annual herb

2020 Matt Berger

2022 Mike Russler

Eriogonum thornei Thorne's buckwheat

• rare native
Perennial herb

2005 James M. Andre

2008 Hartmut Wisch

2005 James M. Andre

Eriogonum thurberi Thurber eriogonum, Thurber's buckwheat

native
Annual herb

2017 David Magney

2014 Ron Vanderhoff

2017 David Magney

Eriogonum trichopes Little desert buckwheat, Little deserttrumpet, Little trumpet

native
Annual herb

2022 Steve Matson

Eriogonum tripodum Tripod buckwheat

• rare native
Shrub

2023 Mike Russler

2021 Scott Yarger

Eriogonum truncatum Mt. Diablo buckwheat

• rare native
Annual herb

2021 John Game

Eriogonum twisselmannii Twisselmann's buckwheat

• rare native
Perennial herb

1984 Geoff Burleigh

2023 Aidan Marshall

Eriogonum umbellatum Sulphur buckwheat, Sulphur flower buckwheat

native
Perennial herb

2005 Steve Matson

2010 Steve Matson

2017 Steve Matson

Eriogonum umbellatum ssp. majus Sulphur buckwheat, Sulphur flower buckwheat

native
Perennial herb

2005 Steve Matson

2010 Steve Matson

2017 Steve Matson

Eriogonum umbellatum var. ellipticum Sulphur buckwheat, Sulphur flower buckwheat

native
Perennial herb

2005 Steve Matson

2010 Steve Matson

2017 Steve Matson

Eriogonum umbellatum var. hausknechtii Sulphur buckwheat, Sulphur flower buckwheat

native
Perennial herb

2005 Steve Matson

2010 Steve Matson

2017 Steve Matson

Eriogonum umbellatum var. majus Sulphur buckwheat, Sulphur flower buckwheat

native
Perennial herb

2005 Steve Matson

2010 Steve Matson

2017 Steve Matson

Eriogonum umbellatum var. ahartii Ahart's buckwheat

• rare native
Perennial herb

2022 Ryan O'Dell

2009 George W. Hartwell

Eriogonum umbellatum var. argus Sulphur buckwheat, Sulphur flower buckwheat

native
Perennial herb

2014 Steve Matson

Eriogonum umbellatum var. bahiiforme Sulphur buckwheat, Sulphur flower buckwheat

• rare native
Perennial herb

2022 David Gowen

2022 Ryan O'Dell

Eriogonum umbellatum var. chlorothamnus Sulphur buckwheat, Sulphur flower buckwheat

native
Perennial herb

2012 Gary A. Monroe

1981 Dean Wm. Taylor

Eriogonum umbellatum var. dichrocephalum Sulphur buckwheat, Sulphur flower buckwheat

native
Perennial herb

Eriogonum umbellatum var. dichrocephalum

2010 Steve Matson

Eriogonum umbellatum var. dumosum Many flowered sulfur flower

native
Perennial herb

2019 Susan McDougall

2020 R.A. Chasey

2019 Susan McDougall

Eriogonum umbellatum var. furcosum Desert sulfur buckwheat, Sulphur flower buckwheat

native
Perennial herb

2005 Steve Matson

Eriogonum umbellatum var. glaberrimum Green buckwheat

• rare native
Perennial herb

2007 F. Gauna

Eriogonum umbellatum var. goodmanii Goodman's buckwheat, Serpentine sulphur buckwheat

native
Perennial herb

2015 Dana York

Eriogonum umbellatum var. humistratum Mt. Eddy buckwheat

• rare native
Perennial herb

2022 Dana York

2019 Julie Kierstead Nelson

2017 Julie Kierstead Nelson

Eriogonum umbellatum var. lautum Scott valley buckwheat

• rare native
Perennial herb

2007 Dean Wm. Taylor, Ph.D.

Eriogonum umbellatum var. minus Alpine sulfur flowered buckwheat, Alpine sulphur flower buckwheat

• rare native
Perennial herb

2015 Keir Morse

2023 Keir Morse

2015 Keir Morse

Eriogonum umbellatum var. modocense Sulphur flower buckwheat, Modoc Sulphur Flower

native
Perennial herb

2023 Dana York

2019 David Greenberger

Eriogonum umbellatum var. munzii Munz's buckwheat

native
Perennial herb

2021 Arlee Montalvo

2021 R.A. Chasey

Eriogonum umbellatum var. nelsoniorum Sulphur buckwheat

native
Perennial herb

2010 Julie A. Kierstead

2023 Dana York

2010 Julie A. Kierstead

Eriogonum umbellatum var. nevadense Nevada buckwheat, Sierra sulfur flower, Sulphur flower buckwheat

native
Perennial herb

2006 Steve Matson

Eriogonum umbellatum var. umbellatum Nevada buckwheat, Sierra sulfur flower, Sulphur flower buckwheat

native
Perennial herb

2006 Steve Matson

Eriogonum umbellatum var. polyanthum Many flowered buckwheat, Sulfur buckwheat, Sulphur flower buckwheat

native
Perennial herb

2018 Mary Conway

2019 Chasey

2013 James Gonsman

Eriogonum umbellatum var. smallianum Sulphur buckwheat

native
Perennial herb

2017 Steve Matson

Eriogonum umbellatum var. speciosum Showy sulfur buckwheat, Sulphur flower buckwheat

native
Perennial herb

2015 Steve Matson

Eriogonum umbellatum var. subaridum Desert sulfur buckwheat, Sulphur flower buckwheat

native
Perennial herb

2011 Steve Matson

2015 Steve Matson

Eriogonum umbellatum var. torreyanum Donner pass buckwheat

• rare native
Perennial herb

2017 Steve Matson

2012 Steve Matson

Eriogonum umbellatum var. versicolor Sulphur flower buckwheat, Sulphur flowered buckwheat

native
Perennial herb

2011 Steve Matson

Eriogonum ursinum Bear buckwheat, Bear valley buckwheat

native
Perennial herb

2019 Julie A. Kierstead

2019 Bob Sweatt

2018 Matt Berger

Eriogonum ursinum var. erubescens Blushing wild buckwheat

• rare native
Perennial herb

2019 Julie A. Kierstead

Eriogonum ursinum var. ursinum Bear buckwheat

native
Perennial herb

2019 David Greenberger

2011 Dean Wm. Taylor

2020 Belinda Lo

Eriogonum vestitum Idria buckwheat

• rare native
Annual herb

2021 Mike Russler

2019 Adam Chasey

2023 Ryan O'Dell

Eriogonum vimineum Wicker buckwheat, Wicker stemmed eriogonum, Wickerstem buckwheat

native
Annual herb

2019 David Greenberger

2019 David popp

2008 Keir Morse

Eriogonum viridescens Bright green buckwheat, Twotooth buckwheat

native
Annual herb

2022 Ryan O'Dell

2019 Matt Berger

2021 Mike Russler

Eriogonum wrightii Bastardsage, Wright's buckwheat

native
Perennial herb, Shrub

2020 Bob Sweatt

2019 Steve Matson

2020 Bob Sweatt

Eriogonum wrightii var. membranaceum Bastardsage, Wright s buckwheat, Wright's buckwheat

native
Perennial herb, Shrub

2012 Keir Morse

Eriogonum wrightii var. nodosum Bastardsage, Wright s buckwheat, Wright's buckwheat

native
Perennial herb, Shrub

2020 R.A. Chasey

Eriogonum wrightii var. subscaposum Bastardsage, Wright's buckwheat

native
Perennial herb, Shrub

2020 Mark Kircher

2011 Steve Matson

Eriogonum wrightii var. trachygonum Bastardsage, Wright s buckwheat, Wright's buckwheat

native
Perennial herb, Shrub

2023 Dianne Lake

2019 Steve Matson

2021 Mike Russler

Eriogonum wrightii var. wrightii Bastardsage, Wright's buckwheat

native
Perennial herb, Shrub

2012 Trent M. Draper

2005 James M. Andre

2012 Trent M. Draper

Erioneuron pilosum Hairy erioneuron, Hairy woollygrass

• rare native
Perennial grass

2020 Matt Berger

2011 Duncan S. Bell

2013 Justy Leppert

Eriophorum angustifolium Tall cottongrass

non-native
Perennial grasslike herb

Eriophorum gracile Cottongrass, Slender cotton grass, Slender cottongrass

• rare native
Perennial grasslike herb

2006 Steve Matson

2018 Scott Yarger

2020 Bob Sweatt

Eriophorum gracile var. caurianum Cottongrass, Slender cotton grass, Slender cottongrass

• rare native
Perennial grasslike herb

2006 Steve Matson

2018 Scott Yarger

2020 Bob Sweatt

Eriophyllum ambiguum Annual woolly sunflower, Beautiful woolly sunflower

native
Annual herb

2016 Steve Matson

Eriophyllum ambiguum var. ambiguum Annual woolly sunflower, Beautiful woolly sunflower

native
Annual herb

2021 Mike Russler

2023 Ryan O'Dell

2021 Mike Russler

Eriophyllum ambiguum var. paleaceum Annual woolly sunflower, Beautiful woolly sunflower

native
Annual herb

2016 Steve Matson

Eriophyllum confertiflorum Golden yarrow, Yellow yarrow

native
Shrub

2019 Stacie Wolny

2019 Diane Etchison

2022 Mojgan Mahdizadeh

Eriophyllum confertiflorum var. confertiflorum Golden yarrow, Yellow yarrow

native
Shrub

Eriophyllum confertiflorum var. confertiflorum

2013 James Gonsman

2020 Mary Conway

2020 Ron Vanderhoff

Eriophyllum confertiflorum var. tanacetiflorum Golden yarrow, Tansy yarrow

• rare native
Shrub

Eriophyllum confertiflorum var. tanacetiflorum

2009 Dean Wm. Taylor, Ph.D.

2012 Lynn Robertson

2009 Dean Wm. Taylor, Ph.D.

Eriophyllum congdonii Congdon's eriophyllum, Congdon's woolly sunflower

• rare native
Annual herb

2009 Barry Breckling

2007 Aaron Schusteff

Eriophyllum jepsonii Jepson eriophyllum, Jepson's woolly sunflower

• rare native
Perennial herb

2021 Mike Russler

2018 Richard Spjut

Eriophyllum lanatum Common woolly sunflower, Common woollysunflower, Wooly sunflower

native
Perennial herb

2008 Steve Matson

2020 Steve Matson

Eriophyllum lanatum var. leucophyllum Common woolly sunflower, Common woollysunflower, Wooly sunflower

native
Perennial herb

2008 Steve Matson

2020 Steve Matson

Eriophyllum lanatum var. achillaeoides Yarrow leaved woolly sunflower

native
Perennial herb

2006 Steve Matson

2008 Steve Matson

2006 Steve Matson

Eriophyllum lanatum var. achilleoides Yarrow leaved woolly sunflower

native
Perennial herb

2006 Steve Matson

2008 Steve Matson

2006 Steve Matson

Eriophyllum lanatum var. arachnoideum Common woolly sunflower, Spiderweb sunflower, Wooly sunflower

native
Perennial herb

2013 James Gonsman

2022 David Wolfson

2023 R.A. Chasey

Eriophyllum lanatum var. croceum Common woolly sunflower, Sierra woolly sunflower

native
Perennial herb

2022 Mike Russler

2014 Mary Merriman

2022 Mike Russler

Eriophyllum lanatum var. grandiflorum Common woolly sunflower, Large flowered woolly sunflower

native
Perennial herb

2020 John Dittes

2023 Anna Prang

2021 Steve Laymon

Eriophyllum lanatum var. hallii Fort tejon woolly sunflower, Hall's woolly sunflower

• rare native
Perennial herb

2020 Stephanie Calloway

2020 Mitchell Coleman

Eriophyllum lanatum var. integrifolium Common woolly sunflower, Oregon sunshine

native
Perennial herb

2007 Steve Matson

2017 Adam Chasey

2012 Steve Matson

Eriophyllum lanatum var. lanceolatum Common woolly sunflower, Lance leaved woolly sunflower

native
Perennial herb

2020 Joey Santore

2020 R.A. Chasey

Eriophyllum lanatum var. obovatum Common woolly sunflower, Southern sierra woolly sunflower

• rare native
Perennial herb

2023 Diane Etchison

2023 Mike Russler

Antheropeas lanosum White easter bonnets

native
Annual herb

2020 David Greenberger

2010 Steve Matson

Eriophyllum lanosum White easter bonnets

native
Annual herb

2020 David Greenberger

2010 Steve Matson

Eriophyllum latilobum San mateo woolly sunflower

• rare native
Perennial herb

2020 Diana Wahl

2015 Neal Kramer

Eriophyllum mohavense Barstow woolly sunflower, Mojave woolly sunflower

• rare native
Annual herb

2020 Matt Berger

2023 Keir Morse

Eriophyllum multicaule Branched woolly sunflower, Many stemmed eriophyllum, Manystem woolly sunflower

native
Annual herb

2020 David Wolfson

2020 David Greenberger

2022 David Wolfson

Eriophyllum nubigenum Yosemite eriophyllum, Yosemite woolly sunflower

• rare native
Annual herb

2009 Barry Breckling

Eriophyllum pringlei Pringle eriophyllum, Pringle's woolly sunflower

native
Annual herb

2006 Steve Matson

2008 Steve Matson

2006 Steve Matson

Eriophyllum staechadifolium Lizard tail, Seaside golden yarrow, Seaside woolly sunflower

native
Perennial herb

2020 Susan McDougall

2014 James Gonsman

2019 Mary Conway

Antheropeas wallacei Wallace eriophyllum, Wallace's woolly daisy

native
Annual herb

2022 Steve Matson

2023 Steve Matson

2022 Steve Matson

Eriophyllum wallacei Wallace eriophyllum, Wallace's woolly daisy

native
Annual herb

2022 Steve Matson

2023 Steve Matson

2022 Steve Matson

Erodium botrys Big heron bill, Broad leaf filaree, Long beaked filaree

non-native
Annual herb

2006 Steve Matson

Erodium brachycarpum Foothill filaree, Short fruited filaree, Shortfruit stork's bill

• invasive non-native
Annual herb

2016 Bob van Duinen

2020 Angelique Herman

2016 Steve Matson

Erodium cicutarium Coastal heron's bill, Red stemmed filaree, Redstem stork's bill

• invasive non-native
Annual herb

2022 Steve Matson

2008 Steve Matson

2022 Steve Matson

Erodium malacoides Mediterranean filaree, Mediterranean stork's bill

non-native
Annual herb

2017 James Bailey

2018 James Bailey

2022 Nathan Dendinger

Erodium moschatum Musky stork's bill, White stemmed filaree, Whitestem filaree

• invasive non-native
Annual herb

2016 Steve Matson

Erodium texanum Desert heron's bill, Texas filaree, Texas stork's bill

native
Annual herb

2019 Matt Berger

2010 Steve Matson

Eruca vesicaria Rocketsalad

non-native
Annual, Biennial herb

2010 Barry Breckling

2013 Neal Kramer

2010 James M. Andre

Eruca vesicaria ssp. sativa Garden rocket, Rocketsalad

non-native
Annual, Biennial herb

2010 James M. Andre

2014 John Doyen

2013 Neal Kramer

Erucastrum gallicum Common dogmustard

non-native
Annual herb

2007 Dr. Amadej Trnkoczy

Eryngium alismifolium Alisma leaved coyote thistle, Coyote thistle, Modoc eryngo

native
Perennial herb

2019 David Greenberger

2015 David popp

2011 Steve Matson

Eryngium aristulatum California eryngo, Jepson's button celery

native
Perennial herb

2022 R.A. Chasey

2019 Ron Vanderhoff

2012 Keir Morse

Eryngium aristulatum var. aristulatum California eryngo, Jepson's button celery

native
Perennial herb

2023 R.A. Chasey

2020 R.A. Chasey

2023 R.A. Chasey

Eryngium aristulatum var. hooveri Hoover's button celery, Hoover's eryngo

• rare native
Annual, Perennial herb

2011 Aaron Arthur

2014 Maya Goklany

2010 Chris Winchell

Eryngium aristulatum var. parishii Parish's eryngo, San diego button celery

• rare native
Annual, Perennial herb

2019 Ron Vanderhoff

2023 Caitlin Kreutz

2019 Ron Vanderhoff

Eryngium armatum Coastal eryngo, Coyote thistle, Prickly coyote thistle

native
Perennial herb

2006 Steve Matson

2015 Tim Miller

Eryngium articulatum Beethistle, Coyote thistle

native
Perennial herb

2021 John Game

2015 Steve Matson

Eryngium castrense Great valley button celery, Great valley eryngo

native
Perennial herb

2022 Steve Matson

2023 Robin Carter-Ervin

Eryngium constancei Loch lomond button celery, Loch lomond eryngo

• rare native
Annual, Perennial herb

2020 Tim Miller

2012 Aaron Arthur

Eryngium jepsonii Jepson's eryngo

• rare native
Perennial herb

2022 R.A. Chasey

2021 R.A. Chasey

2019 Ken Hickman

Eryngium mathiasiae Mathias' button celery, Mathias' eryngo

native
Perennial herb

2016 John Doyen

2000 Robert E. Preston, Ph.D.

2016 John Doyen

Eryngium pendletonense Pendleton button-celery

• rare native
Perennial herb

2014 Ron Vanderhoff

2020 Ron Vanderhoff

Eryngium pinnatisectum Tuolumne button celery, Tuolumne eryngo

• rare native
Annual, Perennial herb

2007 Robert E. Preston, Ph.D.

Eryngium racemosum Delta button celery, Delta eryngo

• rare native
Annual, Perennial herb

2020 Zoya Akulova

2010 Chris Winchell

2020 Zoya Akulova

Eryngium spinosepalum Spiny sepaled button celery, Spinysepal eryngo

• rare native
Annual, Perennial herb

2017 Douglas Gordon-Blackwood

2023 Ryan O'Dell

2015 Neal Kramer

Eryngium vaseyi Coyote thistle, Coyotethistle

native
Perennial herb

2019 Catherine Talbot

2018 Tim Lewis

2019 Catherine Talbot

Erysimum ammophilum Coast wallflower

• rare native
Perennial herb

2016 Ron Vanderhoff

2015 Julia King

2021 Cara Wilcox

Erysimum asperum Sanddune wallflower, Western wallflower

native
Perennial herb

2018 Janith Johnson

2023 Julia Markey

2019 Diane Etchison

Erysimum capitatum Sanddune wallflower, Western wallflower

native
Perennial herb

2018 Janith Johnson

2023 Julia Markey

2019 Diane Etchison

Erysimum capitatum ssp. perenne Sanddune wallflower, Western wallflower

native
Perennial herb

2018 Janith Johnson

2023 Julia Markey

2019 Diane Etchison

Erysimum capitatum var. capitatum Sanddune wallflower

native
Perennial herb

2017 Steve Matson

Erysimum capitatum var. purshii Pursh's wallflower

native
Perennial herb

2009 Lee Dittmann

Erysimum nivale Pursh's wallflower

native
Perennial herb

2009 Lee Dittmann

Erysimum cheiranthoides Wormseed mustard, Wormseed wallflower

non-native
Annual herb

2006 Louis-M. Landry

2023 Aracely Lara

2007 Louis-M. Landry

Erysimum cheiri Aegean wallflower, Common wallflower

non-native
Perennial herb

2008 Louis-M. Landry

2007 Louis-M. Landry

2008 Louis-M. Landry

Erysimum concinnum Headland wallflower

• rare native
Perennial herb

2017 Steve Matson

2020 R.A. Chasey

2018 Adam Chasey

Erysimum menziesii ssp. concinnum Headland wallflower

• rare native
Perennial herb

2017 Steve Matson

2020 R.A. Chasey

2018 Adam Chasey

Erysimum franciscanum Franciscan wallflower, San francisco wallflower

• rare native
Perennial herb

2019 Patrick Furtado

2018 Ken Lunders

2019 Jane Huber

Erysimum insulare Island wallflower

• rare native
Perennial herb

2006 Steve Matson

Erysimum menziesii Menzies' wallflower

• rare native
Perennial herb

2023 Dana York

2019 Saskia Raether

2023 Mary Conway

Erysimum menziesii ssp. eurekense Menzies' wallflower

• rare native
Perennial herb

2023 Dana York

2019 Saskia Raether

2023 Mary Conway

Erysimum menziesii ssp. yadonii Menzies' wallflower

• rare native
Perennial herb

2023 Dana York

2019 Saskia Raether

2023 Mary Conway

Erysimum perenne Sanddune wallflower

native
Perennial herb

2016 James Gonsman

2013 James Gonsman

2019 Chasey

Erysimum repandum Spreading wallflower, Treaclemustard

non-native
Annual herb

2011 Gerald Carr

Erysimum suffrutescens Suffrutescent wallflower

• rare native
Perennial herb

2020 David Greenberger

2013 Debra L. Cook

2014 Neal Kramer

Erysimum teretifolium Santa cruz wallflower

• rare native
Annual, Perennial herb

2022 R.A. Chasey

2021 Cara Wilcox

2011 Dylan Neubauer

Mimulus alsinoides Chickweed monkeyflower

native
Annual herb

2022 Dana York

2024 Steve Conger

Mimulus androsaceus Androsace monkeyflower

native
Annual herb

2019 Matt Berger

2024 Bob Steele

Erythranthe bicolor Yellow and white monkeyflower

native
Annual herb

2016 Ray Gill

2022 Charles Russell

2022 Mary Merriman

Mimulus bicolor Yellow and white monkeyflower

native
Annual herb

2016 Ray Gill

2022 Charles Russell

2022 Mary Merriman

Mimulus breviflorus Short flowered monkeyflower

native
Annual herb

2016 John Doyen

2001 Steve Schoenig

2011 Ryan Batten

Erythranthe breweri Brewer's monkeyflower

native
Annual herb

2021 Mike Russler

2019 Diane Etchison

2021 Mike Russler

Mimulus breweri Brewer's monkeyflower

native
Annual herb

2021 Mike Russler

2019 Diane Etchison

2021 Mike Russler

Erythranthe calcicola Limestone monkeyflower

• rare native
Annual herb

2019 Steve Matson

Erythranthe cardinalis Cardinal monkey flower

native
Perennial herb

2014 James Gonsman

2023 Steve Conger

2021 Mike Russler

Mimulus cardinalis Cardinal monkey flower

native
Perennial herb

2014 James Gonsman

2023 Steve Conger

2021 Mike Russler

Erythranthe carsonensis Carson valley monkeyflower

• rare native
Annual herb

2013 Steve Matson

Mimulus dentatus Tooth leaved monkeyflower

native
Perennial herb

2022 Dana York

2021 Dana York

and Buff Corsi � 2013 California Academy of Sciences

Mimulus exiguus San Bernardino Mountains monkeyflower

• rare native
Annual herb

2001 Steve Schoenig

2008 Naomi Fraga

2001 Steve Schoenig

Mimulus filicaulis slender-stemmed monkeyflower

• rare native
Annual herb

2021 Charles Russell

Mimulus filicifolius fern-leaved monkeyflower

• rare native
Annual herb

2017 David popp

2019 David popp

2017 David popp

Erythranthe floribunda Many flowered monkeyflower

native
Annual herb

2021 Mike Russler

2019 Diane Etchison

2021 Mike Russler

Mimulus floribundus Many flowered monkeyflower

native
Annual herb

2021 Mike Russler

2019 Diane Etchison

2021 Mike Russler

Mimulus floribundus var. dudleyi Many flowered monkeyflower

native
Annual herb

2021 Mike Russler

2019 Diane Etchison

2021 Mike Russler

Erythranthe glaucescens shield-bracted monkeyflower

• rare native
Annual herb

2021 Steve Matson

2023 Cheryl Ballantyne

Mimulus glaucescens shield-bracted monkeyflower

• rare native
Annual herb

2021 Steve Matson

2023 Cheryl Ballantyne

Mimulus gracilipes slender-stalked monkeyflower

• rare native
Annual herb

2021 Mike Russler

Erythranthe guttata Seep monkey flower, Yellow monkey flower

native
Annual, Perennial herb (rhizomatous)

2019 Stacie Wolny

2015 James Gonsman

2019 Stacie Wolny

Mimulus guttatus Seep monkey flower, Yellow monkey flower

native
Annual, Perennial herb (rhizomatous)

2019 Stacie Wolny

2015 James Gonsman

2019 Stacie Wolny

Erythranthe hardhamiae Santa lucia monkeyflower

• rare native
Annual herb

2013 Laura Ann Eliassen

2014 Dylan Neubauer

Erythranthe inconspicua small-flowered monkeyflower

• rare native
Annual herb

2022 Ken-ichi Ueda

2021 Mike Russler

Mimulus inconspicuus small-flowered monkeyflower

• rare native
Annual herb

2022 Ken-ichi Ueda

2021 Mike Russler

Mimulus evanescens ephemeral monkeyflower

• rare native
Annual herb

2019 Matt Berger

Erythranthe laciniata cut-leaved monkeyflower

• rare native
Annual herb

2020 Mark Kircher

2022 Mike Russler

2020 Mark Kircher

Mimulus laciniatus cut-leaved monkeyflower

• rare native
Annual herb

2020 Mark Kircher

2022 Mike Russler

2020 Mark Kircher

Mimulus latidens Broad toothed monkeyflower

native
Annual herb

2019 David Greenberger

2017 Amelia Ryan

2023 Ryan O'Dell

Erythranthe lewisii Lewis' monkey flower

native
Perennial herb

2022 Dana York

2018 joaquin hale

2008 John Doyen

Mimulus lewisii Lewis' monkey flower

native
Perennial herb

2022 Dana York

2018 joaquin hale

2008 John Doyen

Erythranthe linearifolia Primrose monkeyflower

native
Perennial herb

2018 Julie Kierstead Nelson

2014 Steve Matson

2021 Julie A. Kierstead

Mimulus primuloides var. linearifolius Primrose monkeyflower

native
Perennial herb

2018 Julie Kierstead Nelson

2014 Steve Matson

2021 Julie A. Kierstead

Erythranthe marmorata Stanislaus monkeyflower

• rare native
Annual herb

Erythranthe microphylla Small leaved monkeyflower

• rare native
Annual herb

2019 Susan McDougall

2021 Robert Steers

Mimulus montioides Montia like monkeyflower

native
Annual herb

2021 Mike Russler

2017 Ashley Olive

2022 Mike Russler

Erythranthe inodora Musk monkeyflower

native
Perennial herb

2014 James Gonsman

2019 Matt Berger

2018 Julie Kierstead Nelson

Mimulus moschatus Musk monkeyflower

native
Perennial herb

2014 James Gonsman

2019 Matt Berger

2018 Julie Kierstead Nelson

Mimulus norrisii Kaweah monkeyflower

• rare native
Annual herb

2023 Matt Berger

Mimulus nudatus bare monkeyflower

• rare native
Annual herb

2019 Paul Aigner

2015 John Doyen

2019 Paul Aigner

Mimulus palmeri Palmer's monkeyflower

native
Annual herb

2019 Diane Etchison

2019 Matt Berger

Mimulus cupriphilus Pennell's panther

native
Perennial herb

2024 Mike Russler

Mimulus parishii Parish mimulus

native
Annual herb

2019 Matt Berger

2020 Don M. Davis

2019 Hannah Garcia

Erythranthe primuloides Primrose monkeyflower

native
Perennial herb

2007 Steve Matson

2004 Steve Matson

2007 Steve Matson

Mimulus primuloides Primrose monkeyflower

native
Perennial herb

2007 Steve Matson

2004 Steve Matson

2007 Steve Matson

Mimulus primuloides ssp. primuloides Primrose monkeyflower

native
Perennial herb

2007 Steve Matson

2004 Steve Matson

2007 Steve Matson

Mimulus primuloides var. primuloides Primrose monkeyflower

native
Perennial herb

2007 Steve Matson

2004 Steve Matson

2007 Steve Matson

Mimulus moschatus var. sessilifolius Muskflower

native
Perennial herb

2022 David popp

2019 David popp

Mimulus pulsiferae Candelabrum monkey flower

native
Annual herb

2009 Dee Warenycia

2016 Robert Fisher

2013 John Doyen

Mimulus purpureus little purple monkeyflower

• rare native
Annual herb

2023 Ryan O'Dell

Erythranthe rhodopetra Red rock canyon monkeyflower

• rare native
Annual herb

2023 Bob Steele

2020 Matt Berger

2023 Bob Steele

Mimulus rubellus Red stemmed himulus

native
Annual herb

2020 Steve Matson

2019 Steve Matson

Mimulus shevockii Kelso Creek monkeyflower

• rare native
Annual herb

2023 Bob Steele

2016 John Doyen

2024 Bob Steele

Erythranthe sierrae Sierra nevada monkeyflower

• rare native
Annual herb

2021 Neal Kramer

2020 Neal Kramer

Mimulus suksdorfii Suksdorf's monkeyflower

native
Annual herb

2017 Steve Matson

2005 Steve Matson

2018 Leah Gardner

Erythranthe taylorii Shasta limestone monkeyflower

• rare native
Annual herb

2022 Matt Berger

2010 Julie A. Kierstead

Erythranthe tilingii Larger mountain monkeyflower

native
Perennial herb

2019 Bob Sweatt

2019 Diane Etchison

2020 Shane Hanofee

Mimulus tilingii Larger mountain monkeyflower

native
Perennial herb

2019 Bob Sweatt

2019 Diane Etchison

2020 Shane Hanofee

Mimulus tilingii var. caespitosus Larger mountain monkeyflower

native
Perennial herb

2019 Bob Sweatt

2019 Diane Etchison

2020 Shane Hanofee

Erythranthe trinitiensis Pink-margined monkeyflower

• rare native
Annual herb

2019 Steve Laymon

2019 Steve Matson

2019 John Game

Erythrina crista-galli Crybabytree

non-native
Tree, Shrub

2013 Ron Vanderhoff

2015 Ron Vanderhoff

2018 Ron Vanderhoff

Erythronium californicum California fawn lily, California fawnlily

native
Perennial herb (bulb)

2019 Jeff Bisbee

2021 Steve Matson

Erythronium californicum var. white California fawn lily, California fawnlily

native
Perennial herb (bulb)

2019 Jeff Bisbee

2021 Steve Matson

Erythronium citrinum Cream fawnlily, Lemon colored fawn lily

native
Perennial herb (bulb)

2022 Christopher Collier

Erythronium citrinum var. citrinum Cream fawnlily, Lemon colored fawn lily

• rare native
Perennial herb (bulb)

2022 Dana York

2024 Mary Ann Machi

2021 Dana York

Erythronium citrinum var. roderickii Lemon colored fawn lily, Roderick's fawnlily

• rare native
Perennial herb (bulb)

2022 Christopher Collier

2018 Sierra Pacific Industries

2022 Christopher Collier

Erythronium grandiflorum Glacier lily, Yellow avalanche lily

native
Perennial herb (bulb)

2021 Steve Matson

Erythronium grandiflorum ssp. grandiflorum Glacier lily

native
Perennial herb (bulb)

Erythronium grandiflorum ssp. grandiflorum

2021 Steve Matson

Erythronium helenae Pacific fawnlily, St. Helena fawn lily

• rare native
Perennial herb (bulb)

2016 Suzanne L. Weakley

2020 John Game

2020 Claudia Morgan

Erythronium hendersonii Henderson's fawn lily, Henderson's fawnlily

• rare native
Perennial herb (bulb)

2022 Dana York

2022 Jerry Murray

2022 Dana York

Erythronium howellii Howell's fawn lily, Howell's fawnlily

• rare native
Perennial herb (bulb)

2023 Dana York

Erythronium klamathense Klamath fawn lily, Klamath fawnlily

• rare native
Perennial herb (bulb)

2020 Laura Bradley

2019 Belinda Lo

1999 John Game

Erythronium multiscapideum Sierra fawn lily

native
Perennial herb (bulb)

2016 Steve Matson

Erythronium oregonum Giant white fawnlily, Oregon fawn lily

• rare native
Perennial herb (bulb)

2021 Steve Matson

Erythronium oregonum ssp. leucandrum Giant white fawnlily, Oregon fawn lily

• rare native
Perennial herb (bulb)

2021 Steve Matson

Erythronium pluriflorum Manyflower fawnlily, Shuteye peak fawn lily

• rare native
Perennial herb (bulb)

2019 Jacob Smith

Erythronium purpurascens Purple fawn lily, Plain leaf fawn lily

native
Perennial herb (bulb)

2020 Robert Langellier

2021 Mike Russler

Erythronium pusaterii Hocket lakes fawn lily, Kaweah lakes fawnlily

• rare native
Perennial herb (bulb)

2010 John Game

2020 John Game

2016 Mark Stacy

Erythronium revolutum Mahogany fawn lily

• rare native
Perennial herb (bulb)

2021 Steve Conger

2021 Mary Ann Machi

2015 John Doyen

Erythronium shastense Shasta fawn lily

• rare native
Perennial herb

2013 Dana York

2023 Morgan Stickrod

2010 Julie A. Kierstead

Erythronium taylorii Taylor's fawnlily

• rare native
Perennial herb (bulb)

2018 Robert Barnard

2004 John Game

2010 Barry Breckling

Erythronium tuolumnense Tuolumne fawn lily, Tuolumne fawnlily

• rare native
Perennial herb (bulb)

2019 Matt Berger

2023 Karen Swift

2021 Mike Russler

Eschscholzia androuxii Joshua tree poppy

• rare native
Annual herb

2016 Stephen Hodges

2023 Catherine Chang

2019 Keir Morse

Eschscholzia caespitosa Foothill poppy, Tufted eschscholzia, Tufted poppy

native
Annual herb

2019 Ron Vanderhoff

2021 Lisa Berry

2022 Cynthia Powell

Eschscholzia californica California poppy

native
Annual, Perennial herb

2019 Dee Shea Himes

2021 Ron Vanderhoff

2019 Amy Rapport

Eschscholzia californica ssp. mexicana Desert california poppy

native
Annual, Perennial herb

2010 James M. Andre

2006 Chris Wagner, SBNF

2010 James M. Andre

Eschscholzia glyptosperma Desert gold poppy, Desert golden poppy, Desert poppy

native
Annual herb

2019 Matt Berger

2020 John Game

2022 Mike Russler

Eschscholzia hypecoides Leafy stemmed poppy, San benito poppy

• rare native
Annual herb

2022 Mike Russler

Eschscholzia lemmonii Lemmon's poppy

native
Annual herb

2016 Steve Matson

Eschscholzia lemmonii ssp. kernensis Tejon poppy

• rare native
Annual herb

2016 Steve Matson

Eschscholzia lemmonii ssp. lemmonii Lemmon's poppy

native
Annual herb

2023 Ryan O'Dell

2023 Martin Schenker

2023 Ryan O'Dell

Eschscholzia lobbii Frying pans, Fryingpans

native
Annual herb

2022 Steve Matson

Eschscholzia mexicana Desert california poppy

native
Annual herb

Eschscholzia minutiflora Coville s poppy, Pygmy poppy

native
Annual herb

2020 Diane Etchison

2022 Steve Matson

2017 Diane Etchison

Eschscholzia minutiflora ssp. covillei Coville's poppy, Coville's pygmy poppy

native
Annual herb

Geoff Burleigh

2019 Steve Matson

Eschscholzia minutiflora ssp. minutiflora Pygmy poppy

native
Annual herb

Eschscholzia minutiflora ssp. minutiflora

2019 Jim Morefield

2024 Olesya Konovalova

Eschscholzia minutiflora var. twisselmannii Red rock poppy

• rare native
Annual herb

Eschscholzia minutiflora var. twisselmannii

2017 Ashley Olive

Eschscholzia papastillii Cryptic desert poppy

native
Annual herb

2023 Keir Morse

Eschscholzia parishii Parish's poppy, Pygmy poppy

native
Annual herb

2013 James Gonsman

2023 Keir Morse

Eschscholzia californica ssp. californica Kernville poppy

• rare native
Perennial herb

Eschscholzia ramosa Channel island poppy, Island poppy

• rare native
Annual herb

Geoff Burleigh

2011 Dylan Neubauer

2010 Gary A. Monroe

Eschscholzia rhombipetala Diamond petaled california poppy, Diamondpetal california poppy

• rare native
Annual herb

2012 Lisa Paterson

2015 Lesley Hamamoto

2012 Lisa Paterson

Escobaria vivipara var. alversonii Foxtail cactus

native
Shrub (stem succulent)

2019 Lynn Sweet

2023 Olga Batalov

Escobaria vivipara var. deserti Desert pincushion

native
Shrub (stem succulent)

2021 Sandy Leatherman

Eucalyptus camaldulensis Red gum, Red river gum, River redgum

• invasive non-native
Tree

2022 Ron Vanderhoff

Eucalyptus citriodora Lemon scented gum, Lemonscented gum

non-native
Tree

2019 Ron Vanderhoff

2021 Ron Vanderhoff

2022 Ron Vanderhoff

Eucalyptus cladocalyx Sugar gum, Sugargum

• invasive non-native
Tree

2017 Keir Morse

2010 Michael O'Brien

2011 Michael O'Brien

Eucalyptus conferruminata Spider gum, bushy yate

non-native
Tree

2022 R.A. Chasey

2014 Geoff Hoetker

Eucalyptus erythrocorys

non-native
Tree

2017 B.J. Dion

Eucalyptus globulus Blue gum, Tasmanian bluegum

• invasive non-native
Tree

2022 Ron Vanderhoff

Eucalyptus gomphocephala Tuart

non-native
Tree

Eucalyptus grandis Grand eucalyptus

non-native
Tree

2022 Ron Vanderhoff

Eucalyptus leucoxylon White ironbark

non-native
Tree

2021 Ron Vanderhoff

Eucalyptus microtheca Coolabah

non-native
Tree

Eucalyptus nicholii

non-native
Tree

Eucalyptus polyanthemos Redbox, Silver dollar gum

non-native
Tree

2021 Ron Vanderhoff

2020 Ron Vanderhoff

Eucalyptus pulverulenta Money tree, Silverleaf mountain gum

non-native
Tree

2012 David Varner

2008 Zoya Akulova

2012 David Varner

Eucalyptus robusta Swampmahogany

non-native
Tree

Eucalyptus sideroxylon Red iron bark, Red ironbark

non-native
Tree

2021 Ron Vanderhoff

2022 Ron Vanderhoff

Eucalyptus torquata Coral gum

non-native
Tree

2019 Dan Antonaccio

2018 Ron Vanderhoff

2015 Ron Vanderhoff

Eucalyptus viminalis Manna gum

non-native
Tree

Charles Webber1999 California Academy of Sciences

2020 Diana Wahl

Aster breweri Brewer's aster

native
Perennial herb

2009 Keir Morse

2019 Bob Sweatt

2017 David popp

Eucephalus glabratus Smooth aster

• rare native
Perennial herb

2015 Gerald Carr

2020 R.A. Chasey

Aster ledophyllus Cascade aster

native
Perennial herb

2006 Gerald Carr

Eucephalus ledophyllus Cascade aster

native
Perennial herb

2006 Gerald Carr

Eucephalus ledophyllus var. ledophyllus Cascade aster

native
Perennial herb

2006 Gerald Carr

Eucephalus vialis Wayside aster

• rare native
Perennial herb

2008 Gerald Carr

Euchiton gymnocephalus Creeping cudweed

non-native
Perennial herb

2008 Zoya Akulova

2009 Zoya Akulova

2017 Zoya Akulova

Euchiton involucratus

non-native
Annual herb

Euchiton sphaericus Tropical creeping cudweed

non-native
Annual herb

2014 Richard Spellenberg

Euclidium syriacum Syrian mustard

non-native
Annual herb

2018 Trent M. Draper

Eucnide rupestris Rock nettle

• rare native
Annual herb

2023 Keir Morse

2022 Alexander S. Kunz

2018 Fred Melgert / Carla Hoegen

Eucnide urens Desert bush nettle, Desert rocknettle, Desert stingbush

native
Shrub

2011 Steve Matson

2020 Matt Berger

2019 Matt Berger

Eucrypta chrysanthemifolia Common eucrypta, Spotted eucrypta, Spotted hideseed

native
Annual herb

2014 Steve Matson

Eucrypta chrysanthemifolia var. bipinnatifida Common eucrypta, Spotted hideseed, Torrey eucrypta

native
Annual herb

Eucrypta chrysanthemifolia var. bipinnatifida

2014 Steve Matson

2006 Steve Matson

Eucrypta chrysanthemifolia var. chrysanthemifolia Common eucrypta, Spotted hideseed

native
Annual herb

Eucrypta chrysanthemifolia var. chrysanthemifolia

2014 Steve Matson

Eucrypta micrantha Dainty desert hideseed, Desert eucrypta, Small flowered eucrypta

native
Annual herb

2017 Steve Matson

2020 David Greenberger

Camissonia californica California primrose

native
Annual herb

2019 Elexis Padron

2019 Ron Vanderhoff

2019 Elexis Padron

Eulobus californicus California primrose

native
Annual herb

2019 Elexis Padron

2019 Ron Vanderhoff

2019 Elexis Padron

Euonymus fortunei Winter creeper

non-native
Tree, Shrub

2006 Louis-M. Landry

Euonymus japonicus Japanese spindletree

non-native
Tree, Shrub

Euonymus occidentalis Burning bush, Western burning bush

native
Tree, Shrub

2017 Diane Etchison

2019 David Greenberger

2017 Brian Charles

Euonymus occidentalis var. occidentalis Western burning bush

native
Tree, Shrub

2021 Chris Brant

2019 Toni Corelli

2021 Chris Brant

Euonymus occidentalis var. parishii Parish's burning bush, Western burning bush

native
Tree, Shrub

2001 UC Regents

Geoff Burleigh

2001 UC Regents

Euphorbia abramsiana Abrams' spurge

• rare native
Annual herb

2012 Keir Morse

Chamaesyce albomarginata Rattlesnake sandmat

native
Perennial herb

2019 Diane Etchison

2019 Cynthia Powell

2019 Douglas Gordon-Blackwood

Euphorbia albomarginata Rattlesnake sandmat

native
Perennial herb

2019 Diane Etchison

2019 Cynthia Powell

2019 Douglas Gordon-Blackwood

Chamaesyce arizonica Arizona spurge

• rare native
Perennial herb

2013 Keir Morse

Euphorbia arizonica Arizona spurge

• rare native
Perennial herb

2013 Keir Morse

Euphorbia characias Albanian spurge

non-native
Perennial herb

2018 Andrea Pickart

2019 Thomas Reyes

2018 Elliot Gunnison

Euphorbia characias ssp. wulfenii Albanian spurge

non-native
Perennial herb

2018 Andrea Pickart

2019 Thomas Reyes

2018 Elliot Gunnison

Euphorbia crenulata Chinese caps, Chinesecaps

native
Annual, Perennial herb

2008 Steve Matson

Euphorbia cyathophora Fire on the mountain

non-native
Annual, Perennial herb

2016 Barbara Boethling

2010 Moorea Biocode

Euphorbia cyparissias Cypress spurge

non-native
Perennial herb

2021 Thomas Reyes

2016 Thomas Reyes

2006 Louis-M. Landry

Euphorbia davidii David's spurge

non-native
Perennial herb

2016 Keir Morse

Euphorbia dendroides Tree spurge

non-native
Shrub

2015 Dean Kelch

2019 Rachelle Gray

2023 Keir Morse

Euphorbia dentata Toothed spurge

non-native
Annual herb

2001 CDFA

2007 Trent M. Draper

2017 Wynn Anderson

Euphorbia eriantha Beetle spurge

native
Annual herb

2010 Steve Matson

Euphorbia exigua Dwarf spurge

non-native
Perennial herb

2015 Peter Warner

2019 Lenihan Mazur

2015 Peter Warner

Euphorbia exstipulata Squareseed spurge

native
Annual herb

2011 Keir Morse

Euphorbia exstipulata var. exstipulata Clark Mountain spurge

• rare native
Annual herb

2011 Keir Morse

Chamaesyce fendleri Fendler's sandmat

native
Perennial herb

2009 Steve Matson

2012 Steve Matson

Euphorbia fendleri Fendler's sandmat

native
Perennial herb

2009 Steve Matson

2012 Steve Matson

Euphorbia glyptosperma Ridge-seeded spurge

native
Annual herb

2009 Gerald Carr

2009 Robert Carr

Euphorbia helioscopia Wartweed

non-native
Annual herb

2019 Arvind Kumar

2020 Jennifer Mo

2023 Ethan Gilmore

Euphorbia heterophylla Mexican fireplant

non-native
Annual, Perennial herb

2010 Jeff Abbas

2017 John Doyen

Euphorbia hirta Pillpod sandmat

non-native
Annual herb

Chamaesyce hooveri Hoover's spurge

• rare native
Annual herb

2003 George W. Hartwell

2023 David popp

Euphorbia hooveri Hoover's spurge

• rare native
Annual herb

2003 George W. Hartwell

2023 David popp

Euphorbia hypericifolia graceful sandmat

non-native
Annual herb

2022 Ron Vanderhoff

2017 Ron Vanderhoff

2022 Ron Vanderhoff

Euphorbia jaegeri Orocopia mountains spurge

• rare native
Shrub

2020 Matt Berger

Euphorbia lathyris Compass plant, Gopher plant, Moleplant

• invasive non-native
Annual, Perennial herb

2017 Aaron Echols

2021 Mike Russler

2017 Ron Vanderhoff

Euphorbia lathyrus Compass plant, Gopher plant, Moleplant

• invasive non-native
Annual, Perennial herb

2017 Aaron Echols

2021 Mike Russler

2017 Ron Vanderhoff

Euphorbia lurida Woodland spurge

native
Perennial herb

2019 Diane Etchison

2021 Arlee Montalvo

Chamaesyce maculata Spotted spurge

non-native
Annual herb

2019 B.J. Dion

2022 Ron Vanderhoff

Euphorbia maculata Spotted spurge

non-native
Annual herb

2019 B.J. Dion

2022 Ron Vanderhoff

Euphorbia marginata Snow on the mountain

non-native
Annual herb

2011 Luigi Rignanese

2001 CDFA

Chamaesyce melanadenia Red-gland spurge

native
Perennial herb

2022 Rosalind Helfand

2020 Matt Berger

Euphorbia melanadenia Red-gland spurge

native
Perennial herb

2022 Rosalind Helfand

2020 Matt Berger

Chamaesyce micromera Sonoran sandmat

native
Annual herb

2012 Steve Matson

2012 Keir Morse

Euphorbia micromera Sonoran sandmat

native
Annual herb

2012 Steve Matson

2012 Keir Morse

Euphorbia misera Cliff spurge

• rare native
Shrub

2006 Steve Matson

2019 Diane Etchison

Euphorbia myrsinites Myrtle spurge

non-native
Biennial, Perennial herb

2020 Julie A. Kierstead

2018 Tom Getts

2020 Julie A. Kierstead

Euphorbia nutans Eyebane spurge

non-native
Annual herb

2012 Jake Ruygt

2019 David popp

2013 Zoya Akulova

Euphorbia oblongata Eggleaf spurge

• invasive non-native
Perennial herb

2017 Gary McDonald

2019 Randy Huey

2017 Gary McDonald

Chamaesyce ocellata Contura creek spurge

native
Annual herb

2005 Steve Matson

2023 Donald Burk

Euphorbia ocellata Contura creek spurge

native
Annual herb

2005 Steve Matson

2023 Donald Burk

Chamaesyce ocellata ssp. arenicola Dune spurge

native
Annual, Perennial herb

2005 Steve Matson

Euphorbia ocellata ssp. arenicola Dune spurge

native
Annual, Perennial herb

2005 Steve Matson

Chamaesyce ocellata ssp. ocellata Valley spurge

native
Annual, Perennial herb

2021 Mike Russler

2019 Catherine Talbot

Euphorbia ocellata ssp. ocellata Valley spurge

native
Annual, Perennial herb

2021 Mike Russler

2019 Catherine Talbot

Euphorbia ocellata ssp. rattanii Stony creek spurge

• rare native
Annual herb

2023 Donald Burk

Euphorbia parishii Parish's sandmat

native
Perennial herb

2016 Steve Matson

2005 Steve Matson

Chamaesyce parryi Parry's spurge

• rare native
Annual herb

2011 Keir Morse

Euphorbia parryi Parry's spurge

• rare native
Annual herb

2011 Keir Morse

Euphorbia pediculifera Carrizo mountain sandmat

native
Perennial herb

2013 Keir Morse

2019 Steven MacDonald

2013 Keir Morse

Euphorbia peplus Petty spurge

non-native
Annual herb

2006 Steve Matson

2022 Alice Cummings

2005 Luigi Rignanese

Chamaesyce polycarpa Smallseed sandmat

native
Perennial herb

2018 Ron Vanderhoff

2010 Steve Matson

2021 Les Vion

Chamaesyce polycarpa var. polycarpa Smallseed sandmat

native
Perennial herb

2018 Ron Vanderhoff

2010 Steve Matson

2021 Les Vion

Euphorbia polycarpa Smallseed sandmat

native
Perennial herb

2018 Ron Vanderhoff

2010 Steve Matson

2021 Les Vion

Euphorbia polycarpa var. polycarpa Smallseed sandmat

native
Perennial herb

2018 Ron Vanderhoff

2010 Steve Matson

2021 Les Vion

Chamaesyce prostrata Prostrate sandmat

non-native
Annual herb

2019 James Bailey

2019 Jennifer Mo

2019 Douglas Gordon-Blackwood

Euphorbia chamaesyce Prostrate sandmat

non-native
Annual herb

2019 James Bailey

2019 Jennifer Mo

2019 Douglas Gordon-Blackwood

Euphorbia prostrata Prostrate sandmat

non-native
Annual herb

2019 James Bailey

2019 Jennifer Mo

2019 Douglas Gordon-Blackwood

Euphorbia pulcherrima Poinsettia

non-native
Shrub

2010 Moorea Biocode

2021 Terry Coomber

2007 Luigi Rignanese

Chamaesyce revoluta Revolute spurge

• rare native
Annual herb

2011 Keir Morse

2016 Keir Morse

2011 Keir Morse

Euphorbia revoluta Revolute spurge

• rare native
Annual herb

2011 Keir Morse

2016 Keir Morse

2011 Keir Morse

Euphorbia rigida Upright myrtle spurge

non-native
Perennial herb

2020 Greg Perrier

Euphorbia incisa Mojave spurge

native
Perennial herb

2008 Steve Matson

Euphorbia schizoloba Mojave spurge

native
Perennial herb

2008 Steve Matson

Euphorbia serpens Matted sandmat

non-native
Annual herb

2019 B.J. Dion

2018 Ron Vanderhoff

2020 Ron Vanderhoff

Chamaesyce serpyllifolia Thyme-leafed spurge

native
Annual herb

2022 Steve Matson

2005 Steve Matson

Euphorbia serpyllifolia Thyme-leafed spurge

native
Annual herb

2022 Steve Matson

2005 Steve Matson

Chamaesyce serpyllifolia ssp. hirtula Hairy thyme leafed spurge

native
Annual, Perennial herb

2017 David Greenberger

2012 Aaron Schusteff

Euphorbia serpyllifolia ssp. hirtula Hairy thyme leafed spurge

native
Annual, Perennial herb

2017 David Greenberger

2012 Aaron Schusteff

Chamaesyce serpyllifolia ssp. serpyllifolia Thyme leafed spurge

native
Annual, Perennial herb

Chamaesyce serpyllifolia ssp. serpyllifolia

2005 Steve Matson

2022 Steve Matson

Euphorbia serpyllifolia ssp. serpyllifolia Thyme leafed spurge

native
Annual, Perennial herb

Euphorbia serpyllifolia ssp. serpyllifolia

2005 Steve Matson

2022 Steve Matson

Euphorbia serrata Saw toothed spurge, Serrate spurge

• invasive non-native
Perennial herb

2001 CDFA

Chamaesyce setiloba Yuma sandmat

native
Annual herb

2023 Keir Morse

2022 Steve Matson

2020 Matt Berger

Euphorbia setiloba Yuma sandmat

native
Annual herb

2023 Keir Morse

2022 Steve Matson

2020 Matt Berger

Euphorbia spathulata Reticulate seeded spurge, Warty spurge

native
Annual herb

2021 R.A. Chasey

2014 Steve Matson

Euphorbia terracina carnation spurge, Geraldton carnation weed

• invasive non-native
Perennial herb

2021 Ron Vanderhoff

2017 Steve Matson

Euphorbia vallis-mortae Death valley sandmat

• rare native
Perennial herb

2012 Neal Kramer

2003 Aaron Schusteff

Euphorbia esula Leafy spurge

• invasive non-native
Perennial herb

2019 Matt Weston

2015 Dean Kelch

Euphorbia virgata Leafy spurge

• invasive non-native
Perennial herb

2019 Matt Weston

2015 Dean Kelch

Iva acerosa Copperwort

• rare native
Perennial herb

2010 James M. Andre

2023 Zoya Akulova-Barlow

Oxytenia acerosa Copperwort

• rare native
Perennial herb

2010 James M. Andre

2023 Zoya Akulova-Barlow

Euphrosyne nevadensis Nevada wormwood

• rare native
Annual herb

2012 Steve Matson

2008 Steve Matson

2012 Steve Matson

Eurybia integrifolia Thickstem aster

native
Perennial herb

2022 Steve Matson

2012 Steve Matson

Eurybia merita Subalpine aster

• rare native
Perennial herb

2003 Steve Matson

Aster radulinus Roughleaf aster

native
Perennial herb

2007 Keir Morse

2023 Ken-ichi Ueda

2022 Bob Sweatt

Eurybia radulina Roughleaf aster

native
Perennial herb

2007 Keir Morse

2023 Ken-ichi Ueda

2022 Bob Sweatt

Euryops pectinatus Golden daisy bush

non-native
Shrub

2019 Zoya Akulova (cultivated)

2015 Richard Spellenberg

Eustoma exaltatum Catchfly prairie gentian

native
Annual, Perennial herb

2008 Michael Charters

2019 Ron Vanderhoff

Euthamia occidentalis Western flat topped goldenrod, Western goldenrod, Western goldentop

native
Perennial herb

2021 Steve Matson

2018 Ron Vanderhoff

2021 R.A. Chasey

Atriplex californica California orach

native
Perennial herb

2020 Ron Vanderhoff

2006 Steve Matson

2020 Ron Vanderhoff

Extriplex californica California orach

native
Perennial herb

2020 Ron Vanderhoff

2006 Steve Matson

2020 Ron Vanderhoff

Extriplex joaquinana San Joaquin spearscale

• rare native
Annual herb

2021 Suzanne L. Weakley

2022 Charles Russell

2017 Marco Siragusa

Extriplex joaquiniana San Joaquin spearscale

• rare native
Annual herb

2021 Suzanne L. Weakley

2022 Charles Russell

2017 Marco Siragusa

Fagonia laevis California fagonbush, California fagonia, Small flowered fagonia

native
Shrub (stem succulent)

2023 Keir Morse

2020 Matt Berger

2020 Diane Etchison

Fagonia pachyacantha Fagonis, Sticky fagonbush, Sticky fagonia

native
Perennial herb (stem succulent)

2020 David Greenberger

2019 Matt Berger

Fagopyrum esculentum Domestic buckwheat

non-native
Annual herb

2011 Louis-M. Landry

Fagopyrum tataricum Tartary buckwheat

non-native
Annual herb

2006 Louis-M. Landry

Fallopia convolvulus Black bindweed

non-native
Annual herb

2014 Robert L. Carr

Polygonum convolvulus Black bindweed

non-native
Annual herb

2014 Robert L. Carr

Polygonum convolvulus var. convolvulus Black bindweed

non-native
Annual herb

2014 Robert L. Carr

Fallopia japonica Japanese knotweed

• invasive non-native
Perennial herb

2021 Margot Cunningham

2019 John Malpas

Fallopia japonica var. japonica Japanese knotweed

• invasive non-native
Perennial herb

2021 Margot Cunningham

2019 John Malpas

Polygonum cuspidatum Japanese knotweed

• invasive non-native
Perennial herb

2021 Margot Cunningham

2019 John Malpas

Reynoutria japonica Japanese knotweed

• invasive non-native
Perennial herb

2021 Margot Cunningham

2019 John Malpas

Fallopia sachalinensis Giant knotweed

• invasive non-native
Perennial herb

2022 Patrick Hoffman

2001 CDFA

2023 John Malpas

Reynoutria sachalinensis Giant knotweed

• invasive non-native
Perennial herb

2022 Patrick Hoffman

2001 CDFA

2023 John Malpas

Fallugia paradoxa Apache plume

native
Shrub

2019 Richard Spjut

2021 Mike Russler

Fatsia japonica Paperplant

non-native
Vine

Feijoa sellowiana Pineapple guava

non-native
Tree

2021 John Malpas

2008 Joseph Dougherty, M.D./ecology.org

Felicia amelloides Blue daisy

non-native
Perennial herb

2008 Zoya Akulova

Fendlerella utahensis Utah fendlerbush, Yerba desierto

• rare native
Shrub

2011 Steve Matson

Ferocactus acanthodes Barrel cactus, California barrel cactus

native
Shrub (stem succulent)

2019 Matt Berger

2017 Dan Fillipi

2016 Anna Wolfe

Ferocactus cylindraceus Barrel cactus, California barrel cactus

native
Shrub (stem succulent)

2019 Matt Berger

2017 Dan Fillipi

2016 Anna Wolfe

Ferocactus cylindraceus ssp. cylindraceus Barrel cactus, California barrel cactus

native
Shrub (stem succulent)

Ferocactus cylindraceus ssp. cylindraceus

2019 Matt Berger

2017 Dan Fillipi

2016 Anna Wolfe

Ferocactus cylindraceus var. lecontei Barrel cactus, California barrel cactus

native
Shrub (stem succulent)

2019 Matt Berger

2017 Dan Fillipi

2016 Anna Wolfe

Echinocactus viridescens San diego barrel cactus, San diego barrelcactus

• rare native
Shrub (stem succulent)

2019 Ron Vanderhoff

2012 Keir Morse

2023 Olga Batalov

Ferocactus viridescens San diego barrel cactus, San diego barrelcactus

• rare native
Shrub (stem succulent)

2019 Ron Vanderhoff

2012 Keir Morse

2023 Olga Batalov

Festuca arundinacea Alta fescue, Reed fescue, Tall fescue

• invasive non-native
Perennial grass

2022 Cynthia Powell

2020 Robert Steers

2017 MCOSD EDRR

Festuca glauca Field fescue

non-native
Perennial grass

2021 Ron Vanderhoff

Festuca brachyphylla Alpine fescue

native
Perennial grass

2004 Steve Matson

Festuca brachyphylla ssp. coloradoensis Alpine fescue

native
Perennial grass

2004 Steve Matson

Festuca brachyphylla ssp. breviculmis Short leaved fescue

native
Perennial grass

2016 Dean Wm. Taylor

Festuca bromoides Brome fescue

non-native
Annual grass

2022 Diana Wahl

2021 Toni Corelli

2021 David popp

Vulpia bromoides Brome fescue

non-native
Annual grass

2022 Diana Wahl

2021 Toni Corelli

2021 David popp

Festuca californica California fescue

native
Perennial grass

2019 Justin Luong

2022 Justin Luong

2012 Aaron Arthur

Festuca californica ssp. californica California fescue

native
Perennial grass

2019 Justin Luong

2022 Justin Luong

2012 Aaron Arthur

Festuca elmeri Coast fescue, Elmer fescue

native
Perennial grass

2019 Ken Hickman

2022 John Rawlings

2007 Toni Corelli

Festuca idahoensis Blue bunchgrass, Blue fescue, Idaho fescue

native
Perennial grass

2016 Brett Dean

2020 Paul Aigner

2016 Andrew Longman

Festuca roemeri Blue bunchgrass, Blue fescue, Idaho fescue

native
Perennial grass

2016 Brett Dean

2020 Paul Aigner

2016 Andrew Longman

Festuca kingii Spike fescue

native
Perennial grass

2011 Steve Matson

Leucopoa kingii Spike fescue

native
Perennial grass

2011 Steve Matson

Festuca microstachys Small fescue

native
Annual grass

2022 Aaron Sunshine

2011 Steve Matson

Festuca minutiflora Small flowered fescue, Smallflower fescue

• rare native
Perennial grass

2021 Roisin Murphy-Deak

2008 Steve Matson

1993 Dan Post

Festuca myuros Rattail sixweeks grass

• invasive non-native
Annual grass

2021 Aaron Echols

2021 Ron Vanderhoff

2022 John Rawlings

Vulpia myuros Rattail sixweeks grass

• invasive non-native
Annual grass

2021 Aaron Echols

2021 Ron Vanderhoff

2022 John Rawlings

Festuca occidentalis Western fescue

native
Perennial grass

2011 Steve Matson

Festuca octoflora Sixweeks grass

native
Annual grass

2023 R.A. Chasey

2020 Sara Timby

2018 Ken Hickman

Vulpia octoflora Sixweeks grass

native
Annual grass

2023 R.A. Chasey

2020 Sara Timby

2018 Ken Hickman

Festuca perennis Italian rye grass

• invasive non-native
Annual, Perennial grass

2019 Ron Vanderhoff

2017 Gary McDonald

2021 Ron Vanderhoff

Lolium multiflorum Italian rye grass

• invasive non-native
Annual, Perennial grass

2019 Ron Vanderhoff

2017 Gary McDonald

2021 Ron Vanderhoff

Lolium perenne Italian rye grass

• invasive non-native
Annual, Perennial grass

2019 Ron Vanderhoff

2017 Gary McDonald

2021 Ron Vanderhoff

Festuca pratensis Meadow fescue

non-native
Perennial grass

2023 Elliot Gunnison

2012 Al Keuter

Festuca rubra Red fescue

native
Perennial grass

2012 Ove Anderson

2022 John Rawlings

2018 Alexandra Kookootsedes

Festuca rubra ssp. rubra Red fescue

native
Perennial grass

2018 Susan McDougall

Festuca saximontana Rocky mountain fescue

native
Perennial grass

2008 Steve Matson

Festuca saximontana var. purpusiana Rocky mountain fescue

native
Perennial grass

2008 Steve Matson

Festuca subulata Bearded fescue, Nodding fescue

native
Perennial grass

2020 Susan McDougall

2008 Steve Matson

2016 David popp

Festuca subuliflora Coast range fescue, Crinkleawn fescue

native
Perennial grass

2018 Ken Hickman

2022 John Rawlings

Festuca temulenta Darnel, tares

non-native
Annual grass

2016 Spade Natural Resources Consulting

2020 David popp

2019 Stephany Dery

Festuca trachyphylla Hard fescue, Rough leaved fescue

non-native
Perennial grass

2006 Louis-M. Landry

Festuca viridula Greenleaf fescue, Mountain bunch fescue

native
Perennial grass

2022 John Rawlings

2017 John Rawlings

Ficus auriculata Roxburgh fig

non-native
Shrub

Ficus benjamina Weeping fig

non-native
Shrub

Ficus carica Common fig, Edible fig

• invasive non-native
Tree

2019 Ron Vanderhoff

2022 Ron Vanderhoff

2018 Vicki Salazar

Ficus elastica Indian rubberplant

non-native
Shrub

Ficus microcarpa Chinese banyan

non-native
Shrub

2016 Ron Vanderhoff

2018 Ron Vanderhoff

Ficus pumila Climbingfig

non-native
Shrub

2021 Ron Vanderhoff

Filago pyramidata Broadleaf cottonrose

non-native
Annual herb

2019 Ken Hickman

2011 Eric Wrubel/NPS

Filago vulgaris Broadleaf cottonrose

non-native
Annual herb

2019 Ken Hickman

2011 Eric Wrubel/NPS

Filago pyramidata var. pyramidata Filago, Herba impia

non-native
Annual herb

2019 Ken Hickman

Filipendula hexapetala Dropwort

non-native
Perennial herb

Fimbristylis autumnalis Slender fimbry

non-native
Annual grasslike herb

2021 Donald Burk

2006 Dean Wm. Taylor

Fimbristylis miliacea Grasslike fimbry, Millet fimbristylis

non-native
Annual grasslike herb

2010 Moorea Biocode

Fimbristylis thermalis Hot springs fimbristylis, Hot springs fimbry

• rare native
Perennial grasslike herb (rhizomatous)

2020 Matt Berger

2010 Steve Matson

2019 Matt Berger

Fimbristylis vahlii Vahl's fimbristylis, Vahl's fimbry

native
Annual grasslike herb

2004 Steve Matson

Fissidens sublimbatus Fissidens moss

native
Moss

FISSIDENTACEAE

2023 Chris wagner

Floerkea proserpinacoides False mermaidweed

native
Annual herb

2011 Aaron Schusteff

2011 RT Hawke

2012 Gary A. Monroe

Foeniculum vulgare Biscuit root, Sweet fennel

• invasive non-native
Perennial herb

2019 Nicole Leatherman

2019 Ron Vanderhoff

2018 Henry DiRocco

Forestiera neomexicana Desert olive, Stretchberry

native
Shrub

2012 Steve Matson

2017 Steve Matson

Forestiera pubescens Desert olive, Stretchberry

native
Shrub

2012 Steve Matson

2017 Steve Matson

Fouquieria splendens Jacob's staff, Ocotillo

native
Shrub

FOUQUIERIACEAE

2018 Anna Wolfe

2017 Dan Fillipi

2022 Emily Sluiman

Fouquieria splendens ssp. splendens Ocotillo

native
Shrub

FOUQUIERIACEAE

2023 Emily Sluiman

2019 Michelle Tollett

Fragaria chiloensis Beach strawberry

native
Perennial herb

2016 Teresa R Spade, AICP

2019 Patrick Furtado

2020 Carlos Davidson

Fragaria vesca California strawberry, Wild strawberry, Wood strawberry

native
Perennial herb

2020 Cara Wilcox

2017 James Gonsman

2022 Dee Shea Himes

Fragaria vesca var. bracteata California strawberry, Wild strawberry, Wood strawberry

native
Perennial herb

2020 Cara Wilcox

2017 James Gonsman

2022 Dee Shea Himes

Fragaria virginiana Mountain strawberry, Scarlet strawberry, Virginia strawberry

native
Perennial herb

2020 Bob Sweatt

2005 George Rembert

2017 Rebecca Schoenenberger

Fragaria virginiana ssp. glauca Mountain strawberry, Scarlet strawberry, Virginia strawberry

native
Perennial herb

2020 Bob Sweatt

2005 George Rembert

2017 Rebecca Schoenenberger

Fragaria virginiana ssp. platypetala Mountain strawberry, Scarlet strawberry, Virginia strawberry

native
Perennial herb

2020 Bob Sweatt

2005 George Rembert

2017 Rebecca Schoenenberger

Fragaria ananassa

native
Perennial herb

2011 Gerald Carr

Frangula californica California coffeeberry

native
Shrub

2019 Talila Golan

2018 Mary Conway

2015 Steve Matson

Rhamnus californica California coffeeberry

native
Shrub

2019 Talila Golan

2018 Mary Conway

2015 Steve Matson

Frangula californica ssp. californica California coffeeberry

native
Shrub

2015 Steve Matson

2019 Ron Vanderhoff

Frangula californica ssp. crassifolia Serpentine hoary coffeeberry

native
Shrub

2017 Pete Veilleux

Frangula californica ssp. cuspidata Sierra hoary coffeeberry

native
Shrub

2010 Steve Matson

Rhamnus tomentella ssp. cuspidata Sierra hoary coffeeberry

native
Shrub

2010 Steve Matson

Frangula californica ssp. occidentalis Wetern california coffeeberry

native
Shrub

2016 Steve Matson

Frangula californica ssp. tomentella Hoary coffeeberry

native
Shrub

2020 R.A. Chasey

2016 Ron Vanderhoff

2023 Ron Vanderhoff

Rhamnus tomentella Hoary coffeeberry

native
Shrub

2020 R.A. Chasey

2016 Ron Vanderhoff

2023 Ron Vanderhoff

Rhamnus tomentella ssp. tomentella Hoary coffeeberry

native
Shrub

2020 R.A. Chasey

2016 Ron Vanderhoff

2023 Ron Vanderhoff

Frangula purshiana Cascara buckthorn

native
Tree, Shrub

2017 Steve Matson

Frangula purshiana ssp. purshiana Cascara sagrada

native
Shrub

2017 Steve Matson

Frangula purshiana ssp. ultramafica Caribou coffeeberry

• rare native
Shrub

2019 David popp

2015 David popp

2020 David popp

Frangula rubra Red buckthorn

native
Shrub

2019 Steve Matson

Rhamnus rubra Red buckthorn

native
Shrub

2019 Steve Matson

Frangula rubra ssp. modocensis Modoc buckthorn

native
Shrub

2015 Susan McDougall

Frangula rubra ssp. rubra Red buckthorn

native
Shrub

2017 David popp

2021 David popp

2019 David popp

Frankenia palmeri Palmer's frankenia, Palmer's seaheath, Yerba reuma

• rare native
Perennial herb

FRANKENIACEAE

2003 Debra Valov

2015 Wynn Anderson

Frankenia pulverulenta European sea heath

non-native
Perennial herb

FRANKENIACEAE

2015 Keir Morse

Frankenia salina Alkali heath, Alkali seaheath, Yerba reuma, alkali heath

native
Perennial herb

FRANKENIACEAE

2019 Patrick Furtado

2021 Cynthia Powell

2020 Ron Vanderhoff

Frasera albicaulis Whitestem frasera

native
Perennial herb

2015 Steve Matson

Frasera albicaulis var. modocensis Modoc frasera

• rare native
Perennial herb

2022 Glenn Fine

Frasera albicaulis var. nitida Whitestem frasera

native
Perennial herb

2015 Steve Matson

Swertia albicaulis var. nitida Whitestem frasera

native
Perennial herb

2015 Steve Matson

Frasera albomarginata Desert frasera

native
Perennial herb

2005 James M. Andre

2010 James M. Andre

Swertia albomarginata Desert frasera

native
Perennial herb

2005 James M. Andre

2010 James M. Andre

Frasera albomarginata var. albomarginata Desert green-gentian

• rare native
Perennial herb

Frasera albomarginata var. albomarginata

2020 David Greenberger

1996 Christopher L. Christie

2016 John Doyen

Frasera neglecta Pine green-gentian

• rare native
Perennial herb

2014 Steve Matson

Frasera parryi Coahuila frasera

native
Perennial herb

2020 Ron Vanderhoff

2020 Bob Sill

Frasera puberulenta Inyo frasera

native
Perennial herb

2015 Steve Matson

2016 Steve Matson

Frasera speciosa Monument plant

native
Perennial herb

2019 Zachary Snider

2012 Gerald Carr

2015 Cynthia Powell

Swertia radiata Monument plant

native
Perennial herb

2019 Zachary Snider

2012 Gerald Carr

2015 Cynthia Powell

Frasera tubulosa Kern frasera

• rare native
Perennial herb

2019 Matt Berger

2022 richard mcneill

Frasera fastigiata Umpqua green-gentian

• rare native
Perennial herb

2010 Norman Jensen

2008 Amanda Shufelberger

Frasera umpquaensis Umpqua green-gentian

• rare native
Perennial herb

2010 Norman Jensen

2008 Amanda Shufelberger

Swertia fastigiata Umpqua green-gentian

• rare native
Perennial herb

2010 Norman Jensen

2008 Amanda Shufelberger

Swertia umpquaensis Umpqua green-gentian

• rare native
Perennial herb

2010 Norman Jensen

2008 Amanda Shufelberger

Fraxinus americana White ash

non-native
Tree, Shrub

Fraxinus anomala Dwarf ash, Single leaf ash, Single leaved ash

native
Tree, Shrub

2011 Steve Matson

Fraxinus anomala var. anomala Dwarf ash, Single leaf ash, Single leaved ash

native
Tree, Shrub

2011 Steve Matson

Fraxinus dipetala California ash, Flowering ash, Foothill ash

native
Tree, Shrub

2023 Ron Vanderhoff

2021 Bryant Baker

Fraxinus latifolia Oregon ash

native
Tree

2021 Robert Whitaker

2021 Richard Spjut

2012 Terrence Gosliner

Fraxinus ornus Flowering ash

non-native
Tree, Shrub

Fraxinus parryi Chaparral ash

• rare native
Shrub

2003 Charles E. Jones

Fraxinus pennsylvanica Green ash

non-native
Tree

2019 Jennifer Mo

2007 Louis-M. Landry

2019 Jennifer Mo

Fraxinus uhdei Shamel ash

• invasive non-native
Tree

2023 Ron Vanderhoff

2018 Ron Vanderhoff

2023 Ron Vanderhoff

Fraxinus velutina Arizona ash, Velvet ash

native
Tree

2021 Ron Vanderhoff

2013 Ron Vanderhoff

Freesia refracta Common freesia

non-native
Perennial herb

$Freesia refracta$

2011 Eric Larson

$Freesia refracta$

2007 Luigi Rignanese

$Freesia refracta$

2007 Luigi Rignanese

Fremontia californica California flannelbush, California fremontia, Flannel bush

native
Shrub

2020 Suzanne L. Weakley

2019 Diane Etchison

2020 Tom Ballinger

Fremontodendron californicum California flannelbush, California fremontia, Flannel bush

native
Shrub

2020 Suzanne L. Weakley

2019 Diane Etchison

2020 Tom Ballinger

Fremontodendron californicum ssp. californicum California flannelbush, California fremontia, Flannel bush

native
Shrub

Fremontodendron californicum ssp. californicum

2020 Suzanne L. Weakley

2019 Diane Etchison

2020 Tom Ballinger

Fremontodendron californicum ssp. decumbens Pine hill flannelbush

• rare native
Shrub

Fremontodendron californicum ssp. decumbens

2021 L. Couper with Debra Ayres

2020 Virginia Meyer

2022 Charles Russell

Fremontodendron decumbens Pine hill flannelbush

• rare native
Shrub

2021 L. Couper with Debra Ayres

2020 Virginia Meyer

2022 Charles Russell

Fremontodendron mexicanum Mexican flannelbush

• rare native
Shrub

2016 Jonathan Mercado

2017 Torrey neel

2023 Ron Vanderhoff

Fritillaria affinis Checker lily, Mission bells

native
Perennial herb (bulb)

2008 Steve Matson

Fritillaria affinis var. affinis Checker lily, Mission bells

native
Perennial herb (bulb)

2008 Steve Matson

Fritillaria affinis var. tristulis Checker lily, Mission bells

native
Perennial herb (bulb)

2008 Steve Matson

Fritillaria lanceolata Checker lily, Mission bells

native
Perennial herb (bulb)

2008 Steve Matson

Fritillaria agrestis Stinkbells

• rare native
Perennial herb (bulb)

2023 Catherine Chang

2022 Dee Shea Himes

2021 Damon Tighe

Fritillaria atropurpurea Mountain fritillary, Purple fritillary, Spotted fritillary

native
Perennial herb

2005 Steve Matson

2011 Steve Matson

Fritillaria biflora Chocolate lily

native
Perennial herb

2024 Jim Van Matre

2020 Susan White

2023 Julia Markey

Fritillaria biflora var. biflora Chocolate lily

native
Perennial herb (bulb)

2006 Steve Matson

Fritillaria biflora var. ineziana Hillsborough chocolate lily

• rare native
Perennial herb (bulb)

2004 Toni Corelli

Fritillaria brandegeei Greenhorn fritillary

• rare native
Perennial herb (bulb)

2020 Tom Lotshaw

2021 Bob Steele

2023 Mike Russler

Fritillaria eastwoodiae Butte county fritillary

• rare native
Perennial herb (bulb)

2019 Matt Berger

2009 Julie A. Kierstead

Fritillaria falcata Talus fritillary

• rare native
Perennial herb (bulb)

2019 joey malone

2019 Matt Berger

2023 Mike Russler

Fritillaria gentneri Gentner's fritillary

• rare native
Perennial herb

2005 Kathleen Moody

2008 Shawn DeCew

2013 Scot Loring

Fritillaria glauca Siskiyou fritillary, Siskiyou missionbells

• rare native
Perennial herb

2023 Dana York

2019 Joey Santore

2020 Tim Miller

Fritillaria lanceolata var. tristulis Marin checker lily

• rare native
Perennial herb

2017 Marabeth Grahame

2020 David Greenberger

2021 R.A. Chasey

Fritillaria liliacea Fragrant fritillary

• rare native
Perennial herb (bulb)

2017 Steve Matson

Fritillaria micrantha Brown bells, Brown fritillary

native
Perennial herb

2016 Ray Gill

2016 Natalia Blackburn

2022 Eric Engles

Fritillaria ojaiensis Ojai fritillary

• rare native
Perennial herb (bulb)

2020 John Game

2020 G Froelich

2019 Gordon Jenkins

Fritillaria pinetorum Pine woods fritillary, Pinewoods fritillary

• rare native
Perennial herb

2020 Aaron Echols

2011 Jeffrey Hapeman

2020 Charlotte Hill

Fritillaria pluriflora Adobe lily

• rare native
Perennial herb (bulb)

2015 Steve Matson

Fritillaria pudica Gold bell, Yellow fritillary

native
Perennial herb

2020 Zane Walker

2019 Diane Rose

2020 Bob Sweatt

Fritillaria purdyi Purdy's fritillary

• rare native
Perennial herb (bulb)

2020 Steve Conger

2012 Vernon Smith

2020 Kale Levin

Fritillaria recurva Scarlet fritillary

native
Perennial herb

2020 Steve Conger

2018 Zane Walker

2022 John L. Thompson

Fritillaria grayana ssp. martha Roderick's fritillary

• rare native
Perennial herb (bulb)

2018 Michael Mitchell

2021 R.A. Chasey

Fritillaria striata Striped adobe lily

• rare native
Perennial herb (bulb)

2016 Steve Matson

Fritillaria viridea San benito fritillary

• rare native
Perennial herb (bulb)

2021 Dee Shea Himes

2022 Mike Russler

Froelichia gracilis Slender snakecotton

non-native
Annual herb

2022 Donald Burk

Fuchsia boliviana Bolivian fuchsia

non-native
Shrub

2018 Lynn Overtree

2014 Lynn Overtree

2018 Lynn Overtree

Fuchsia magellanica Hardy fuchsia

non-native
Shrub

2022 Erin Jackson

2008 Neal Kramer

2018 Brian Charles

Fuchsia paniculata Shrubby fuchsia

non-native
Shrub

2018 Zoya Akulova

Fumaria capreolata White ramping fumitory

non-native
Perennial herb

2023 David Wolfson

2020 Eric Wrubel

2024 Mike Russler

Fumaria muralis Wall fumitory

non-native
Annual herb

2018 Anne Parsons

Fumaria officinalis Drug fumitory

• invasive non-native
Annual herb

2021 stephen rosenthal

2010 Denise Kocek

2021 Mary Conway

Fumaria parviflora Fine leaved fumitory, Fineleaf fumitory

non-native
Annual herb

2022 Ron Vanderhoff

Funastrum crispum Wavyleaf twinevine

• rare native
Perennial herb

2016 Keir Morse

Sarcostemma crispum Wavyleaf twinevine

• rare native
Perennial herb

2016 Keir Morse

Funastrum cynanchoides Fringed twinevine

native
Perennial herb

2010 Steve Matson

2017 Bonnie Nickel

2010 Steve Matson

Funastrum cynanchoides ssp. hartwegii Fringed twinevine

native
Perennial herb

2010 Steve Matson

2017 Bonnie Nickel

2010 Steve Matson

Sarcostemma cynanchoides Fringed twinevine

native
Perennial herb

2010 Steve Matson

2017 Bonnie Nickel

2010 Steve Matson

Funastrum cynanchoides var. hartwegii Climbing milkweed

native
Perennial herb

2017 Bonnie Nickel

2017 Alexander S. Kunz

2019 Ron Vanderhoff

Sarcostemma cynanchoides ssp. hartwegii Climbing milkweed

native
Perennial herb

2017 Bonnie Nickel

2017 Alexander S. Kunz

2019 Ron Vanderhoff

Funastrum hirtellum Hairy milkweed

native
Perennial herb, Vine

2010 Steve Matson

Cynanchum utahense Utah vine milkweed

• rare native
Perennial herb

2019 Diane Etchison

2016 Fred Melgert

2010 Neal Kramer

Funastrum utahense Utah vine milkweed

• rare native
Perennial herb

2019 Diane Etchison

2016 Fred Melgert

2010 Neal Kramer

Gaillardia aristata Blanketflower, Common gaillardia, Common Indian blanket

non-native
Perennial herb

2006 Louis-M. Landry

2005 Louis-M. Landry

2013 Wynn Anderson

Gaillardia pinnatifida Red dome blanketflower

non-native
Annual herb

Gaillardia pulchella Firewheel indian blanket

non-native
Annual herb

2021 Ron Vanderhoff

2015 Richard Spellenberg

Gaillardia Xgrandiflora

non-native
Annual herb

Galega officinalis Professor-weed

• invasive non-native
Perennial herb

2017 Gerald Carr

Galenia pubescens Coastal galenia

non-native
Perennial herb

2023 Ron Vanderhoff

2022 Ron Vanderhoff

2020 Joan Miller

Galeopsis tetrahit Brittlestem hempnettle

non-native
Annual herb

2005 Louis-M. Landry

Galinsoga parviflora var. semicalva Gallant soldier

non-native
Annual herb

2011 Steve Matson

Galinsoga parviflora var. parviflora Few flowered galinsoga

non-native
Annual herb

2011 Steve Matson

Galinsoga ciliata Four pointed galinsoga, Shaggy soldier

non-native
Annual herb

2019 Adam Chasey

2007 Dr. Amadej Trnkoczy

2019 Adam Chasey

Galinsoga quadriradiata Four pointed galinsoga, Shaggy soldier

non-native
Annual herb

2019 Adam Chasey

2007 Dr. Amadej Trnkoczy

2019 Adam Chasey

Galium ambiguum Yolla bolly bedstraw

native
Perennial herb

2023 Ryan O'Dell

2017 Steve Matson

Galium ambiguum ssp. ambiguum Yolla bolly bedstraw

native
Perennial herb

2017 Steve Matson

Galium ambiguum ssp. siskiyouense Siskiyou bedstraw

native
Perennial herb

2017 Steve Matson

2008 Keir Morse

Galium ambiguum var. siskiyouense Siskiyou bedstraw

native
Perennial herb

2017 Steve Matson

2008 Keir Morse

Galium andrewsii Needlemat galium, Phlox leaved bedstraw, Phloxleaf bedstraw

native
Perennial herb

2022 Mike Russler

2019 Marisa Persaud

2022 Mike Russler

Galium andrewsii ssp. andrewsii Andrews' bedstraw, Phlox leaved bedstraw

native
Perennial herb

2018 Gary McDonald

Galium andrewsii ssp. gatense Serpentine bedstraw

• rare native
Perennial herb

2019 David Greenberger

2019 Steve Matson

Galium angustifolium Narrow leaved bedstraw, Narrowleaf bedstraw

native
Perennial herb

2019 Bonnie Nickel

2017 Diane Etchison

2020 Ron Vanderhoff

Galium angustifolium ssp. angustifolium Narrow leaved bedstraw, Narrowleaf bedstraw

native
Perennial herb

2017 Steve Matson

2020 Ron Vanderhoff

2017 Steve Matson

Galium angustifolium ssp. borregoense Borrego bedstraw

• rare native
Perennial herb

2012 Keir Morse

Galium angustifolium ssp. foliosum Narrow leaved bedstraw, Narrowleaf bedstraw

native
Perennial herb

2014 Steve Matson

Galium angustifolium ssp. gabrielense San antoinio canyon bedstraw, San antonio canyon bedstraw

• rare native
Perennial herb

2019 Keir Morse

Galium angustifolium ssp. gracillimum Narrow leaved bedstraw, Slender bedstraw

• rare native
Perennial herb

2022 Eric Koberle

Galium angustifolium ssp. jacinticum San jacinto bedstraw, San jacinto mtns. bedstraw

• rare native
Perennial herb

2015 Keir Morse

Galium angustifolium ssp. nudicaule Naked stem bedstraw, Narrowleaf bedstraw

native
Perennial herb

2014 Keir Morse

Galium angustifolium ssp. onycense Onyx peak bedstraw

• rare native
Perennial herb

Galium aparine Cleavers, Common bedstraw, Goose grass

native
Annual herb

2020 Ron Vanderhoff

2005 Steve Matson

2020 Ron Vanderhoff

Galium bifolium Low mountain bedstraw, Twinleaf bedstraw

native
Annual herb

2011 Steve Matson

Galium bolanderi Bolander galium, Bolander's bedstraw

native
Perennial herb

2020 Neal Kramer

2015 Steve Matson

Galium boreale Northern bedstraw

native
Perennial herb

2015 Barry Breckling

2010 Barry Breckling

2012 Trent M. Draper

Galium boreale ssp. septentrionale Northern bedstraw

native
Perennial herb

2015 Barry Breckling

2010 Barry Breckling

2012 Trent M. Draper

Galium californicum California bedstraw

native
Perennial herb

2006 Steve Matson

2014 Steve Matson

Galium californicum ssp. californicum California bedstraw

native
Perennial herb

2018 Ken Hickman

2017 Ken Hickman

2015 James Gonsman

Galium californicum ssp. flaccidum California bedstraw

native
Perennial herb

2014 Steve Matson

Galium californicum ssp. luciense Cone peak bedstraw

• rare native
Perennial herb

2021 Kristen Nelson

Galium californicum ssp. maritimum Coastal california bedstraw

native
Perennial herb

2012 BOB CASE

2022 Irene Rosen

Galium californicum ssp. miguelense San miguel island bedstraw

• rare native
Perennial herb

2006 Steve Matson

Galium californicum ssp. primum California bedstraw

• rare native
Perennial herb

2013 Keir Morse

Galium californicum ssp. sierrae El dorado bedstraw

• rare native
Perennial herb

2023 Jake Picardat

2002 Steve Tyron

2011 Steven Perry

Galium catalinense Santa catalina island bedstraw

native
Perennial herb

2011 Dylan Neubauer

2002 Dean Wm. Taylor

2011 Neal Kramer

Galium catalinense ssp. acrispum San clemente island bedstraw, Santa clemente island bedstraw

• rare native
Shrub

2011 Dylan Neubauer

2002 Dean Wm. Taylor

2011 Neal Kramer

Galium catalinense ssp. catalinense Santa catalina island bedstraw

• rare native
Shrub

2009 Vince Scheidt

Galium clementis Santa Lucia bedstraw

• rare native
Perennial herb

2005 Dean Wm. Taylor, Ph.D.

Galium cliftonsmithii Santa barbara bedstraw

• rare native
Perennial herb

2019 Justin Luong

2023 Keir Morse

Galium divaricatum Lamarck's bedstraw

non-native
Annual herb

2001 Julie Kierstead Nelson

2020 Jean Pawek

Galium glabrescens var. glabrescens Castle lake bedstraw

native
Perennial herb

2014 Steve Matson

Galium glabrescens ssp. glabrescens Castle lake bedstraw

native
Perennial herb

2014 Steve Matson

Galium glabrescens ssp. modocense Modoc bedstraw

• rare native
Perennial herb

Gary Schoolcraft and CNPS

Galium grande San gabriel bedstraw

• rare native
Shrub

2023 Keir Morse

Galium grayanum Gray's bedstraw

native
Perennial herb

2005 Steve Matson

2017 Steve Matson

Galium grayanum var. grayanum Gray's bedstraw

native
Perennial herb

2017 Steve Matson

Galium hallii Hall's bedstraw, Nodding bedstraw

native
Perennial herb

2019 Manzanita Dictionary

Galium hardhamiae Hardham's bedstraw

• rare native
Perennial herb

1984 California Native Plant Society

Galium hilendiae ssp. carneum Panamint mountains bedstraw, Panamint mtns. bedstraw

• rare native
Perennial herb

2011 Steve Matson

Galium hilendiae ssp. kingstonense Kingston mountains bedstraw, Kingston mtns. bedstraw

• rare native
Perennial herb

2011 Duncan S. Bell

Galium hypotrichium Alpine bedstraw

native
Perennial herb

2015 Steve Matson

2020 Matt Berger

Galium hypotrichium ssp. hypotrichium Alpine bedstraw

native
Perennial herb

2019 Bob Sweatt

2016 Keir Morse

Galium hypotrichium ssp. inyoense Inyo bedstraw

native
Perennial herb

2015 Steve Matson

Galium hypotrichium ssp. tomentellum Alpine bedstraw, Telescope peak bedstraw

• rare native
Perennial herb

2011 Steve Matson

Galium jepsonii Jepson's bedstraw

• rare native
Perennial herb (rhizomatous)

2015 Keir Morse

2021 Joy England

Galium johnstonii Johnston's bedstraw

• rare native
Perennial herb

2014 Keir Morse

Galium matthewsii Bushy bedstraw, Matthew's bedstraw

native
Perennial herb

2015 Steve Matson

Galium mexicanum ssp. asperulum Mexican bedstraw

native
Perennial herb

2022 David popp

Galium mexicanum var. asperulum Mexican bedstraw

native
Perennial herb

2022 David popp

Galium mollugo False baby's breath, Hedge bedstraw, Wild madder

non-native
Perennial herb

2009 Phil Pullen

2008 Dr. Amadej Trnkoczy

Galium multiflorum Kellogg's bedstraw, Many flowered bedstraw, Shrubby bedstraw

native
Perennial herb

2005 Steve Matson

2011 Steve Matson

Galium murale Tiny bedstraw, Yellow wall bedstraw

non-native
Annual herb

2022 R.A. Chasey

2021 Cameron Chabre

2014 Bryan Derr

Galium nuttallii ssp. insulare Climbing bedstraw, Nuttall's island bedstraw, Nuttall'sisland bedstraw

• rare native
Perennial herb

2006 Steve Matson

Galium oreganum Oregon bedstraw

• rare native
Perennial herb (rhizomatous)

2018 Scot Loring

2009 Norman Jensen

2018 Susan McDougall

Galium parishii Parish's bedstraw

native
Perennial herb

2021 R.A. Chasey

2014 Aaron Schusteff

Galium parisiense Wall bedstraw

non-native
Annual herb

2021 Al Keuter

2020 Ron Vanderhoff

2019 Diane Etchison

Galium porrigens Climbing bedstraw, Graceful bedstraw, Nuttall's bedstraw

native
Vine, Shrub

2005 Steve Matson

Galium porrigens var. porrigens Climbing bedstraw, Graceful bedstraw, Oval leaved bedstraw

native
Vine, Shrub

2022 Ron Vanderhoff

2022 Julia Larke

Galium porrigens var. tenue Graceful bedstraw

native
Vine, Shrub

2005 Steve Matson

Galium proliferum Desert bedstraw, Limestone bedstraw

• rare native
Annual herb

2011 Duncan S. Bell

2011 Teague Embrey

2011 Duncan S. Bell

Galium serpenticum ssp. scotticum Scott mountain bedstraw, Scott mtn. bedstraw

• rare native
Perennial herb

2011 Steve Matson

Galium sparsiflorum ssp. sparsiflorum Sequoia bedstraw

native
Perennial herb

2019 Julie A. Kierstead

Galium stellatum Starry bedstraw

native
Shrub

2019 Matt Berger

2017 Bonnie Nickel

Galium stellatum var. eremicum Starry bedstraw

native
Shrub

2019 Matt Berger

2017 Bonnie Nickel

Galium tricornutum Rough bedstraw, Roughfruit corn bedstraw

native
Annual herb

2007 Luigi Rignanese

2020 David popp

2007 Luigi Rignanese

Galium trifidum Three petaled bedstraw, Threepetal bedstraw, Trifid bedstraw

native
Perennial herb

2020 Alaine Arslan

2022 Mike Russler

2005 Steve Matson

Galium trifidum ssp. columbianum Threepetal bedstraw

native
Perennial herb

2005 Steve Matson

Galium trifidum var. pacificum Threepetal bedstraw

native
Perennial herb

2005 Steve Matson

Galium trifidum ssp. subbiflorum Threepetal bedstraw

native
Perennial herb

2022 David popp

2023 David popp

Galium trifidum var. pusillum Threepetal bedstraw

native
Perennial herb

2022 David popp

2023 David popp

Galium triflorum Fragrant bedstraw, Sweet bedstraw, Sweet scented bedstraw

native
Annual herb

2022 Ken-ichi Ueda

2018 Ken Hickman

Galium verum Ladie's bedstraw, Yellow spring bedstraw

non-native
Vine

Gerald and Buff Corsi 2002 California Academy of Sciences

2006 Dr. Amadej Trnkoczy

Gambelia speciosa Showy island snapdragon

• rare native
Shrub

2020 Susan McDougall

2017 B.J. Dion

Gamochaeta calviceps Narrowleaf purple everlasting

non-native
Perennial herb

2020 Richard Spjut

2012 Al Keuter

Gamochaeta falcata Narrowleaf purple everlasting

non-native
Perennial herb

2020 Richard Spjut

2012 Al Keuter

Gamochaeta americana Gray everlasting

non-native
Perennial herb

2022 Shawna Martinez

Gamochaeta pensylvanica Pennsylvania everlasting

non-native
Perennial herb

2019 Adonis Tate

2015 Richard Spellenberg

2017 James Bailey

Gamochaeta stagnalis Desert cudweed

non-native
Perennial herb

2023 Ron Vanderhoff

Gamochaeta purpurea Featherweed

native
Perennial herb

2019 Gary McDonald

2021 Zoya Akulova-Barlow

2019 Gary McDonald

Gamochaeta ustulata Featherweed

native
Perennial herb

2019 Gary McDonald

2021 Zoya Akulova-Barlow

2019 Gary McDonald

Gardenia jasminoides Cape jasmine

non-native
Perennial herb

Garrya buxifolia Boxleaf silk tassel, Boxleaf silktassel, Dwarf silktassel

native
Shrub

2019 Susan McDougall

2021 Steve Conger

2021 Steve Matson

Garrya congdonii Chaparral silktassel, Congdon's silk tassel, Interior silktassel

native
Shrub

2023 Steve Laymon

2020 Susan McDougall

Garrya elliptica Coast silk tassel, Coast silktassel, Silk tassel bush or quinine bush

native
Tree, Shrub

2004 Michael Charters

2020 John Rawlings

2020 Eliezer Margolis

Garrya flavescens Ashy silk tassel, Ashy silktassel

native
Shrub

2020 Diane Etchison

2023 Ryan O'Dell

2020 Ron Vanderhoff

Garrya flavescens var. padilla Ashy silk tassel, Ashy silktassel

native
Shrub

2020 Diane Etchison

2023 Ryan O'Dell

2020 Ron Vanderhoff

Garrya fremontii Bearbrush, Fremont's silk tassel

native
Shrub

2023 R.A. Chasey

2020 Belinda Lo

2020 Rebecca Schoenenberger

Garrya veatchii Canyon silktassel, Southern silk tassel, Veatch silktassel

native
Shrub

2023 Devon Christian

2016 Ron Vanderhoff

2020 Bryant Baker

Gastridium phleoides Nit grass

non-native
Annual grass

2020 Ron Vanderhoff

2017 Gary McDonald

Gaultheria humifusa Alpine spicywintergreen, Alpine wintergreen

native
Shrub

2022 Dana York

2011 Steve Matson

Gaultheria ovatifolia Oregon spicy wintergreen, Western teaberry, Western wintergreen

native
Shrub

2017 SPI Botany

2018 Julie Kierstead Nelson

Gaultheria shallon Salal

native
Shrub

2016 Steve Matson

Gayophytum diffusum Diffuse gayophytum, Gayophytum, Spreading groundsmoke

native
Annual herb

2019 Diane Etchison

2011 BOB CASE

2019 Diane Etchison

Gayophytum diffusum ssp. diffusum Diffuse gayophytum, Spreading groundsmoke

native
Annual herb

2021 R.A. Chasey

2012 Neal Kramer

Gayophytum diffusum ssp. parviflorum Diffuse gayophytum, Small flowered groundsmoke, Spreading groundsmoke

native
Annual herb

2022 Mike Russler

Gayophytum eriospermum Coville's gayophytum, Coville's groundsmoke, Woolly seeded groundsmoke

native
Annual herb

2022 Mike Russler

2019 Mary Merriman

Gayophytum heterozygum Zig zag gayophytum, Zigzag groundsmoke

native
Annual herb

2003 Christopher L. Christie

2023 Ryan O'Dell

2020 Alaine Arslan

Gayophytum humile Dwarf groundsmoke, Gayophytum, Low gayophytum

native
Annual herb

2022 Mike Russler

2023 Mike Russler

Gayophytum oligospermum Pinegrove gayophytum, Pinegrove groundsmoke

native
Annual herb

2011 Keir Morse

Gayophytum ramosissimum Pinyon gayophytum, Pinyon groundsmoke

native
Annual herb

2009 Gerald Carr

Gazania linearis Gazania, Treasure flower, Treasureflower

• invasive non-native
Perennial herb

2016 Barbara Boethling

2018 Ron Vanderhoff

Gelsemium sempervirens Evening trumpetflower

non-native

LOGANIACEAE

Genista canariensis Canary broom, Canary island broom

non-native
Shrub

2001 CDFA

Genista linifolia Mediterranean broom

• invasive non-native
Shrub

2017 B.J. Dion

Genista aetnensis Bridal broom

• invasive non-native
Shrub

2023 Ron Vanderhoff

Genista monspessulana French broom

• invasive non-native
Shrub

2019 Ron Vanderhoff

2021 Michelle Karle

Teline monspessulana French broom

• invasive non-native
Shrub

2019 Ron Vanderhoff

2021 Michelle Karle

Gentiana affinis Pleated gentian

native
Perennial herb

2019 David Greenberger

2022 Zoya Akulova-Barlow

2022 Dee Shea Himes

Gentiana affinis var. ovata Gentian, Pleated gentian

native
Perennial herb

2022 Zoya Akulova-Barlow

2019 David Greenberger

2023 Mary Ann Machi

Gentiana calycosa Explorer's Gentian , Rainier pleated gentian

native
Perennial herb

2018 David Greenberger

2020 Mark Kircher

2021 Dee Shea Himes

Gentiana fremontii Moss gentian

• rare native
Annual herb

2010 John Game

Gentiana newberryi Alpine gentian

native
Perennial herb

2022 Cynthia Powell

2022 Mike Russler

2018 Ramona Robison

Gentiana newberryi var. newberryi Alpine gentian

native
Perennial herb

2014 Steve Matson

Gentiana newberryi var. tiogana Sierra alpine gentian, Tioga gentian

native
Perennial herb

2018 Maisie Borg

2022 R.A. Chasey

2018 Maisie Borg

Gentiana plurisetosa Bristly gentian, Klamath gentian

• rare native
Perennial herb

2016 Dana York

2019 Michael Kauffmann

2007 Norman Jensen

Gentiana prostrata Pygmy gentian

• rare native
Perennial herb

2009 Ron Wolf

Gerald and Buff Corsi 2010 California Academy of Sciences

Gentiana sceptrum King's scepter gentian

native
Perennial herb

2012 Barry Rice

2011 Ryan Batten

Charles Webber1998 California Academy of Sciences

Gentiana setigera Mendocino gentian

• rare native
Perennial herb

2007 Keir Morse

Gentianella amarella Autumn dwarf gentian

native
Annual herb

2010 Steve Matson

Gentiana amarella Autumn dwarf gentian

native
Annual herb

2010 Steve Matson

2016 Steve Matson

Gentianella amarella ssp. acuta Autumn dwarf gentian

native
Annual herb

2010 Steve Matson

2016 Steve Matson

Gentianopsis holopetala Sierra fringed gentian, Sierra gentian

native
Annual herb

2005 Steve Matson

Gentianopsis simplex Hiker's fringed gentian, One flowered fringed gentian, Oneflower fringed gentian

native
Annual herb

2022 Dana York

2023 Alaine Arslan

2022 Mike Russler

Geoffroea decorticans Cha�?�?�?�??�?�?�â�?��?��?�?â�?� �?¢â�??¬â�??¢�?�?�?�??�

non-native
Perennial herb

Geraea canescens Desert sunflower, Hairy desert sunflower, Hairy desertsunflower

native
Annual herb

2022 Matt Berger

2020 David Greenberger

2022 Mike Russler

Geraea viscida Sticky desertsunflower, Sticky geraea

• rare native
Perennial herb

2019 Matt Berger

Geranium bicknellii Bicknell's cranesbill, Bicknell's geranium

native
Annual herb

2010 Jeff Abbas

2006 Louis-M. Landry

2010 Jeff Abbas

Geranium californicum California cranesbill, California geranium

native
Perennial herb

Geoff Burleigh

Geranium carolinianum Carolina geranium

native
Annual herb

2021 Ron Vanderhoff

2024 Ron Vanderhoff

Geranium columbinum Longstalk cranesbill

non-native
Annual herb

2004 Dr. Amadej Trnkoczy

Geranium core-core Alderney crane's-bill

non-native
Perennial herb

2012 BOB CASE

2013 Toni Corelli

2022 Jennifer Mo

Geranium dissectum Cranesbill, Cut leaved geranium, Cutleaf geranium

• invasive non-native
Annual herb

2021 Al Keuter

2023 Ron Vanderhoff

2014 Bryan Derr

Geranium incanum Carpet geranium

non-native
Perennial herb

2013 Bobbi Lewis

2022 Ron Vanderhoff

2016 Ron Vanderhoff

Geranium lucidum Shining geranium

• invasive non-native
Annual, Biennial herb

2021 Dana York

2016 Dr. Amadej Trnkoczy

2017 Domenic Bongio

Geranium molle Crane's bill geranium, Dove's foot geranium, Dovefoot geranium

• invasive non-native
Annual, Perennial herb

2008 Steve Matson

Geranium oreganum Oregon geranium

native
Perennial herb

2021 Steve Conger

Geranium viscosissimum var. incisum Oregon geranium

native
Perennial herb

2021 Steve Conger

Geranium viscosissimum var. nervosum Oregon geranium

native
Perennial herb

2021 Steve Conger

Geranium palmatum Canary island geranium

non-native
Annual herb

Geranium potentilloides Cinquefoil geranium, New zealand geranium

non-native
Perennial herb

2008 Jorg Fleige

2008 Doreen L. Smith

Geranium purpureum little Robin

• invasive non-native
Annual, Biennial herb

2020 Jennifer Mo

2023 Al Keuter

2019 Cynthia Powell

Geranium pusillum Small flowered geranium, Small geranium

non-native
Annual herb

2014 Zoya Akulova

2016 Dr. Amadej Trnkoczy

2012 Phil Pullen

Geranium pyrenaicum Hedgerow geranium

non-native
Perennial herb

2004 Dr. Amadej Trnkoczy

2021 Zoya Akulova

2004 Dr. Amadej Trnkoczy

Geranium retrorsum New zealand geranium

• invasive non-native
Perennial herb

2012 Gary A. Monroe

Geranium richardsonii Richardson's geranium

native
Perennial herb

2006 Steve Matson

2018 Steve Matson

Geranium robertianum herb Robert

• invasive non-native
Annual herb

2016 Steve Matson

Geranium robertianum ssp. robertianum herb Robert

• invasive non-native
Annual herb

2016 Steve Matson

Geranium rotundifolium Round leaved geranium, Roundleaf geranium

non-native
Annual herb

2017 James Bailey

2009 Dean Wm. Taylor

2017 James Bailey

Geranium sanguineum Bloody geranium

non-native
Perennial herb

Geranium solanderi Solander's geranium

non-native
Annual herb

2015 Chris Jaster

2009 Vernon Smith

2008 Doreen L. Smith

Geranium viscosissimum Sticky geranium, Sticky purple geranium

native
Perennial herb

2019 Susan McDougall

Geranium viscosissimum var. viscosissimum Sticky geranium, Sticky purple geranium

native
Perennial herb

Geranium viscosissimum var. viscosissimum

2019 Susan McDougall

Gerbera jamesonii Barberton daisy

non-native
Perennial herb

Geum aleppicum Aleppo avens, Yellow avens

• rare native
Perennial herb

2010 Louis-M. Landry

2008 Louis-M. Landry

2010 Louis-M. Landry

Geum macrophyllum Large leaved avens, Largeleaf avens

native
Perennial herb

2022 Mike Russler

2023 John Malpas

2022 Mike Russler

Geum macrophyllum var. macrophyllum Largeleaf avens

native
Perennial herb

2021 Dana York

2014 John Doyen

Geum macrophyllum var. perincisum Largeleaf avens

native
Perennial herb

2022 R.A. Chasey

2014 John Doyen

Geum triflorum Old man's beard, Old man's whiskers, Prairie smoke

native
Perennial herb

2020 Bob Sweatt

2006 Steve Matson

2022 Steve Matson

Geum triflorum var. campanulatum Old man's beard, Old man's whiskers, Prairie smoke

native
Perennial herb

2020 Bob Sweatt

2006 Steve Matson

2022 Steve Matson

Geum triflorum var. triflorum Old man's beard, Old man's whiskers, Prairie smoke

native
Perennial herb

2020 Bob Sweatt

2006 Steve Matson

2022 Steve Matson

Geum triflorum var. ciliatum Prairie-smoke

native
Perennial herb

2019 R.A. Chasey

2018 Joerg Lohse

2021 R.A. Chasey

Gilia achilleifolia California gilia

native
Annual herb

2022 R.A. Chasey

2022 Helen Hancock

2024 R.A. Chasey

Gilia achilleifolia ssp. achilleifolia California gilia

native
Annual herb

2021 Helen Hancock

2022 R.A. Chasey

2021 Mary Conway

Gilia achilleifolia ssp. multicaulis Many stemmed california gilia, Many stemmed gilia

native
Annual herb

2022 Ron Vanderhoff

2021 Ron Vanderhoff

2022 Ron Vanderhoff

Gilia aliquanta ssp. aliquanta Puff calyx gilia, Puffcalyx gilia

native
Annual herb

2024 Mike Russler

Gilia aliquanta ssp. breviloba Puff calyx gilia, Puffcalyx gilia

native
Annual herb

2008 Steve Matson

Gilia angelensis Chaparral gilia

native
Annual herb

2023 Ron Vanderhoff

2021 Ron Vanderhoff

Gilia austro-occidentalis Southwestern gilia

native
Annual herb

2009 Adonis (Don) Tate

Gilia brecciarum Nevada gilia, Small gilia

native
Annual herb

2016 Steve Matson

2016 Bob Sweatt

Gilia brecciarum ssp. brecciarum Nevada gilia

native
Annual herb

2022 Steve Matson

Gilia brecciarum ssp. neglecta Nevada gilia

native
Annual herb

2016 Steve Matson

Gilia cana Showy gilia

native
Annual herb

2023 Steve Matson

2022 Steve Matson

Gilia cana var. speciformis Showy gilia

native
Annual herb

2023 Steve Matson

2022 Steve Matson

Gilia cana var. speciosa Showy gilia

native
Annual herb

2023 Steve Matson

2022 Steve Matson

Gilia cana ssp. bernardina Showy gilia

native
Annual herb

2014 Neal Kramer

Gilia cana ssp. cana Showy gilia

native
Annual herb

2013 Steve Matson

Gilia cana ssp. speciformis Showy gilia

native
Annual herb

2008 Steve Matson

2020 Patrick Donnelly

Gilia cana ssp. speciosa Showy gilia

native
Annual herb

2023 Mike Russler

2023 Ryan O'Dell

Gilia cana ssp. triceps Showy gilia

native
Annual herb

2022 Steve Matson

Gilia capitata Blue field gilia, Bluehead gilia

native
Annual herb

2011 Gerald Carr

2022 Ron Vanderhoff

2011 Gerald Carr

Gilia capitata ssp. abrotanifolia Ball gilia, Blue field gilia, Bluehead gilia

native
Annual herb

2022 Ryan O'Dell

2016 Steve Matson

2019 Diane Etchison

Gilia capitata ssp. capitata Blue field gilia, Bluehead gilia

native
Annual herb

2011 Gerald Carr

2022 R.A. Chasey

2011 Gerald Carr

Gilia capitata ssp. chamissonis Blue field gilia, Bluehead gilia, Dune gilia

• rare native
Annual herb

2013 Scott Simono

2023 R.A. Chasey

Gilia capitata ssp. mediomontana Blue field gilia, Foothill gilia

native
Annual herb

2019 David Greenberger

2018 William Checkvala

2021 R.A. Chasey

Gilia capitata ssp. pacifica Pacific blue field gilia, Pacific gilia

• rare native
Annual herb

2019 Wyatt Dooley

2016 Steve Matson

Gilia capitata ssp. pedemontana Blue field gilia, Bluehead gilia

native
Annual herb

2011 Steve Matson

Gilia capitata ssp. staminea Bluehead gilia, Globe gilia

native
Annual herb

2017 Julie Watson

2021 R.A. Chasey

2016 Julie Watson

Gilia capitata ssp. tomentosa Bluehead gilia, Hairy blue field gilia

• rare native
Annual herb

2019 Alison Gardner

2022 R.A. Chasey

2020 R.A. Chasey

Gilia clivorum Many stemmed gilia, Purple spot gilia, Purplespot gilia

native
Annual herb

2013 Gary McDonald

2021 Helen Hancock

Gilia clokeyi Clokey's gilia

native
Annual herb

2012 Steve Matson

Gilia diegensis Coastal gilia

native
Annual herb

2019 Diane Etchison

2021 R.A. Chasey

Gilia inconspicua Shy gilia

native
Annual herb

2022 Steve Matson

Gilia interior Inland gilia

• rare native
Annual herb

2022 Ryan O'Dell

Gilia latiflora Broad flowered gilia, Hollyleaf gilia

native
Annual herb

2019 Diane Etchison

2019 Bryant Baker

2019 Richard Spjut

Gilia latiflora ssp. cuyamensis Cuyama gilia, Hollyleaf gilia

• rare native
Annual herb

2012 Michael Charters

Gilia latiflora ssp. davyi Broad flowered gilia, Hollyleaf gilia

native
Annual herb

2005 Steve Matson

2010 Aaron Schusteff

Gilia latiflora ssp. elongata Broad flowered gilia, Hollyleaf gilia

native
Annual herb

2016 John Doyen

2018 John Doyen

2016 John Doyen

Gilia latiflora ssp. latiflora Holly leaf gilia, Hollyleaf gilia

native
Annual herb

2019 Diane Etchison

Gilia leptantha Fine flower gilia, Fineflower gilia

native
Annual herb

2023 Bob Steele

Gilia leptantha ssp. leptantha Fine flower gilia, Fineflower gilia

• rare native
Annual herb

2016 Steven Thorsted

2009 Duncan S. Bell

Gilia leptantha ssp. pinetorum Fineflower gilia, Pine gilia

• rare native
Annual herb

2016 Keir Morse

2018 Neal Kramer

Gilia malior Scrub gilia

native
Annual herb

2014 Steve Matson

2006 James M. Andre

Gilia mexicana El paso gilia

• rare native
Annual herb

2018 Wynn Anderson

Gilia millefoliata Manyleaf gilia

• rare native
Annual herb

2019 Wyatt Dooley

2023 Dana York

2016 Teresa R Spade, AICP

Gilia minor Little gilia

native
Annual herb

2020 Matt Berger

Gilia modocensis Modoc gilia

native
Annual herb

2022 Manzanita Dictionary

Gilia nevinii Nevin's gilia

• rare native
Annual herb

2011 Dylan Neubauer

2011 Neal Kramer

2011 Michelle Cloud-Hughes

Gilia ochroleuca ssp. bizonata Volcanic gilia

native
Annual herb

2019 Diane Etchison

2008 Lynn Watson

Gilia ochroleuca ssp. exilis Volcanic gilia

native
Annual herb

2010 Michael Charters

Gilia ochroleuca ssp. ochroleuca Volcanic gilia

native
Annual herb

2016 Steve Matson

Gilia ochroleuca ssp. vivida Volcanic gilia

native
Annual herb

2021 Don M. Davis

Gilia ophthalmoides Eyed gilia

native
Annual herb

2006 Steve Matson

2010 James M. Andre

2016 John Doyen

Gilia salticola Granite gilia, Salt gilia

native
Annual herb

2008 Steve Matson

Gilia scopulorum Rock gilia

native
Annual herb

2019 Steve Matson

2022 Alexander S. Kunz

Gilia sinuata Cinder gilia, Rosy gilia

native
Annual herb

2022 Steve Matson

Gilia stellata Star gilia

native
Annual herb

2022 Steve Matson

Gilia tenuiflora Greater yellowthroat gilia, Slender flowered gilia

native
Annual herb

2022 Irene Rosen

2022 R.A. Chasey

2022 Cynthia Powell

Gilia tenuiflora var. tenuiflora Greater yellowthroat gilia, Slender flowered gilia

native
Annual herb

2022 Irene Rosen

2022 R.A. Chasey

2022 Cynthia Powell

Gilia tenuiflora ssp. arenaria Greater yellowthroat gilia, Sand gilia

• rare native
Annual herb

2017 Wes Gray

F. Howitt � 2002 California Academy of Sciences

Gilia tenuiflora ssp. hoffmannii Hoffman's gilia, Hoffman's slender flowered gilia, Hoffmann's slender flowered gilia

• rare native
Annual herb

2000 John Game

Gilia tenuiflora ssp. tenuiflora Greater yellowthroat gilia, Slender flowered gilia

native
Annual herb

2006 Steve Matson

Gilia transmontana Trans montane gilia, Transmontane gilia

native
Annual herb

2010 Steve Matson

2017 Steve Matson

2006 Steve Matson

Gilia tricolor Bird's eye gilia, Bird's eyes, Tricolor gilia

native
Annual herb

2021 Steve Matson

2022 Steve Matson

2021 Steve Matson

Gilia tricolor ssp. diffusa Bird's eye gilia, Bird's eyes

native
Annual herb

2022 Steve Matson

Gilia tricolor ssp. tricolor Bird's eye gilia, Bird's eyes

native
Annual herb

2021 Steve Matson

Gilia yorkii Boyden cave gilia

• rare native
Annual herb

2010 Dana York

Gilmania luteola Golden carpet, Goldencarpet

• rare native
Annual herb

2020 Matt Berger

Ginkgo biloba Ginkgo

non-native
Tree

GINKGOACEAE

2005 Louis-M. Landry

2015 Zoya Akulova

Githopsis diffusa ssp. candida San gabriel bluecup

native
Annual herb

2016 Ron Vanderhoff

2017 Abby Sirulnik

Githopsis diffusa ssp. diffusa San gabriel bluecup, Southern blue cup

native
Annual herb

2019 Ron Vanderhoff

Githopsis diffusa ssp. robusta San gabriel bluecup

native
Annual herb

2012 Anuja Parikh and Nathan Gale

2012 Aaron Arthur

2012 Anuja Parikh and Nathan Gale

Githopsis pulchella Largeflower bluecup, Sierra bluecup

native
Annual herb

2022 BOB CASE

Githopsis pulchella ssp. campestris Sierra bluecup

native
Annual herb

2019 David popp

2022 David popp

1996 Arthur H. Bazell, M.D.

Githopsis pulchella ssp. pulchella Sierra bluecup

native
Annual herb

2022 Cynthia Powell

Githopsis pulchella ssp. serpentinicola Serpentine bluecup, Sierra bluecup

• rare native
Annual herb

2022 Mike Russler

Githopsis pulchella var. glabra Sierra bluecup

native
Annual herb

1998 Arthur H. Bazell, M.D.

Githopsis specularioides Common bluecup, Venus' looking glass

native
Annual herb

2016 Steve Matson

2021 Mike Russler

Gladiolus italicus Italian gladiolus

non-native
Perennial herb

2006 Luigi Rignanese

Gladiolus tristis Ever flowering gladiolus

non-native
Perennial herb (bulb)

Glandularia peruviana Peruvian mock vervain

non-native
Perennial herb

2007 Zoya Akulova

Glaucium flavum Yellow horned poppy, Yellow hornpoppy

non-native
Perennial herb

2021 Ron Vanderhoff

Chrysanthemum coronarium Crown daisy

• invasive non-native
Annual herb

2019 Nicole Leatherman

2018 Rachelle Gray

2022 Jennifer Mo

Glebionis coronaria Crown daisy

• invasive non-native
Annual herb

2019 Nicole Leatherman

2018 Rachelle Gray

2022 Jennifer Mo

Chrysanthemum segetum Corndaisy

non-native
Annual herb

2015 Ramona Robison

2007 Luigi Rignanese

2015 John Doyen

Glebionis segetum Corndaisy

non-native
Annual herb

2015 Ramona Robison

2007 Luigi Rignanese

2015 John Doyen

Glechoma hederacea Ground ivy

non-native
Perennial herb

2005 Louis-M. Landry

2004 Dr. Amadej Trnkoczy

Gleditsia triacanthos Honeylocust

• invasive non-native
Tree, Shrub

2022 Ron Vanderhoff

Glehnia littoralis American silvertop

native
Perennial herb

2017 John Game

2013 Dana York

Glehnia littoralis ssp. leiocarpa American glehnia, American silvertop

• rare native
Perennial herb

2013 Dana York

2020 Steve Conger

Glinus lotoides Lotus sweetjuice

non-native
Annual herb

MOLLUGINACEAE

2021 R.A. Chasey

2021 Donald Burk

Glossopetalon pungens Dwarf greasebush, Pungent glossopetalon, Smooth greasewood

• rare native
Shrub

2010 James M. Andre

Glossopetalon spinescens Nevada greasewood, Spiny greasebush

native
Shrub

2015 Steve Matson

Glossopetalon spinescens var. aridum Spiny greasebush

native
Shrub

2015 Steve Matson

Glyceria borealis Northern mannagrass, Small floating mannagrass

native
Perennial grass

2008 Louis-M. Landry

Glyceria declinata Waxy mannagrass

• invasive non-native
Perennial grass

2021 David popp

2016 Andrew Longman

2022 David popp

Glyceria elata Fowl mannagrass, Tall mannagrass

native
Perennial grass

2008 Steve Matson

2020 Susan McDougall

Glyceria grandis American mannagrass

• rare native
Perennial grass (rhizomatous)

2004 Dean Wm. Taylor

Glyceria leptostachya Davy mannagrass, Manna grass

native
Perennial grass (aquatic)

2017 Elliot Gunnison

2008 Keir Morse

2008 Steve Matson

Glyceria striata Fowl mannagrass

native
Perennial grass

2007 Keir Morse

2023 Mary Merriman

2007 Keir Morse

Glycyrrhiza glabra Cultivated licorice

non-native
Perennial herb

2017 Zoya Akulova

2018 Ron Vanderhoff

2016 Ron Vanderhoff

Glycyrrhiza lepidota American licorice, Lichorice, Wild licorice

native
Perennial herb

2010 Steve Matson

Glycyrrhiza lepidota var. glutinosa American licorice, Lichorice, Wild licorice

native
Perennial herb

2010 Steve Matson

Glyptopleura marginata Carved seed, Carveseed, Keysia

native
Annual herb

2022 Steve Matson

2011 Steve Matson

2017 Steve Matson

Glyptopleura setulosa Holy dandelion

native
Annual herb

2024 Bob Steele

2017 Ashley Olive

Gnaphalium palustre Lowland cudweed, Western marsh cudweed

native
Annual herb

2019 Ron Vanderhoff

2005 Steve Matson

2019 Ron Vanderhoff

Goodmania luteola Golden goodmania, Yellow spinecape

• rare native
Annual herb

2007 Steve Matson

2014 Keir Morse

Goodyera oblongifolia Rattlesnake plantain, Western rattlesnake plantain

native
Perennial herb

2020 Bob Sweatt

2019 Glenn Fine

2019 Julie A. Kierstead

Goodyera oblongifolia var. reticulata Rattlesnake plantain, Western rattlesnake plantain

native
Perennial herb

2020 Bob Sweatt

2019 Glenn Fine

2019 Julie A. Kierstead

Gossypium barbadense Creole cotton

non-native
Annual herb,Perennial herb,Tree,Shrub

Gossypium hirsutum Upland cotton

non-native
Annual herb,Perennial herb,Tree,Shrub

2012 Neal Kramer

Gratiola ebracteata Bractless hedge hyssop, Common hedge hyssop

native
Annual herb

2022 Steve Matson

Gratiola heterosepala Boggs lake hedge hyssop

• rare native
Annual herb

2004 Carol W. Witham

2010 Doug Wirtz

Grayia spinosa Hop sage, Spiny hopsage

native
Shrub

2019 Diane Etchison

Cryptantha circumscissa

native
Annual herb

2020 Matt Berger

2022 Steve Matson

2021 Mike Russler

Cryptantha circumscissa var. circumscissa Cushion greeneocharis

native
Annual herb

Cryptantha circumscissa var. circumscissa

2023 Donald Burk

2019 Diane Etchison

2022 R.A. Chasey

Cryptantha similis Dome greeneocharis

native
Annual herb

2019 Diane Etchison

2018 Steven MacDonald

2019 Marisa Persaud

Grevillea robusta Silkoak

• invasive non-native
Tree

2021 Ron Vanderhoff

2020 Ron Vanderhoff

2021 Ron Vanderhoff

Grevillea rosmarinifolia rosemary grevillea, spider flower

non-native
Shrub

2015 Chris Jaster

2019 Julian Geoghegan

2015 jamie smith

Grimmia laevigata Grimmia dry rock moss

native
Moss

GRIMMIACEAE

2016 Ron Vanderhoff

2018 Ron Vanderhoff

Grimmia pulvinata Pulvinate dry rock moss

native
Moss

GRIMMIACEAE

2018 Scot Loring

2023 Ron Vanderhoff

Grimmia trichophylla Grimmia dry rock moss

native
Moss

GRIMMIACEAE

2016 David Greenberger

2018 Richard Spjut

2021 Diana Wahl

Grindelia camporum Common gumplant, Great valley gumweed, Gum plant

native
Perennial herb

2023 R.A. Chasey

2019 Ron Vanderhoff

Grindelia camporum var. bracteosum Common gumplant, Great valley gumweed, Gum plant

native
Perennial herb

2023 R.A. Chasey

2019 Ron Vanderhoff

Grindelia camporum var. camporum Common gumplant, Great valley gumweed, Gum plant

native
Perennial herb

2023 R.A. Chasey

2019 Ron Vanderhoff

Grindelia fraxinipratensis Ash meadows gumplant

• rare native
Perennial herb

2010 James M. Andre

Grindelia hallii San diego gumplant

• rare native
Perennial herb

2014 Keir Morse

Grindelia hirsutula Gumweed, Hairy gumweed

native
Perennial herb

2021 R.A. Chasey

2020 R.A. Chasey

2015 Ken Lunders

Grindelia hirsutula var. maritima Coastal gumweed, San francisco gum plant, San francisco gumplant

• rare native
Perennial herb

2016 Neal Kramer

2009 Neal Kramer

Grindelia nana Idaho gumweed, Idaho resinweed

native
Perennial herb

2002 Steve Matson

2010 Gerald Carr

Grindelia ciliata Spanish gold

non-native
Annual, Biennial herb

2009 Doug Wirtz

Grindelia papposa Spanish gold

non-native
Annual, Biennial herb

2009 Doug Wirtz

Grindelia squarrosa Curlycup gumweed

non-native
Perennial herb

2020 Ron Vanderhoff

2020 Bob Sweatt

2021 Donald Burk

Grindelia squarrosa var. serrulata Curlycup gumweed, Great plains resinweed

non-native
Perennial herb

2018 Ron Vanderhoff

2021 David popp

2020 Ron Vanderhoff

Grindelia stricta Coastal gumweed, Gumweed, Oregon gumweed

native
Perennial herb

2015 Steve Matson

Grindelia stricta var. angustifolia Marsh gumplant, Oregon gumweed

native
Perennial herb

2021 Helen Hancock

2021 Toni Corelli

2014 James Gonsman

Grindelia stricta var. platyphylla Gumplant, Gumweed, Oregon gumweed

native
Perennial herb

2020 Mary Conway

2019 Patrick Furtado

2014 Dee Warenycia

Grindelia stricta var. stricta Coastal gum plant, Oregon gumweed

native
Perennial herb

2015 Steve Matson

Grindelia paludosa Suisun gumplant

native
Perennial herb

Geoff Burleigh

2009 Zoya Akulova

Geoff Burleigh

Grusonia parishii Matted cholla

• rare native
Shrub (stem succulent)

2015 Steve McWilliams

2020 Jenna Moore

Opuntia parishii Matted cholla

• rare native
Shrub (stem succulent)

2015 Steve McWilliams

2020 Jenna Moore

Opuntia stanlyi Matted cholla

• rare native
Shrub (stem succulent)

2015 Steve McWilliams

2020 Jenna Moore

Grusonia pulchella Sagebrush cholla

• rare native
Shrub (stem succulent)

2010 Neal Kramer

Opuntia pulchella Sagebrush cholla

• rare native
Shrub (stem succulent)

2010 Neal Kramer

Pectocarya pusilla Little gruvelia

native
Annual herb

2022 Steve Matson

Guizotia abyssinica Ramtilla

non-native
Annual herb

2009 Luigi Rignanese

Gunnera chilensis Chilean gunnera

• invasive non-native
Perennial herb (aquatic)

GUNNERACEAE

2011 Michael Perlmutter

2010 Zoya Akulova

2011 Michael Perlmutter

Gunnera tinctoria Chilean gunnera

• invasive non-native
Perennial herb (aquatic)

GUNNERACEAE

2011 Michael Perlmutter

2010 Zoya Akulova

2011 Michael Perlmutter

Gutierrezia californica California matchweed, Matchweed, snakeweed, San joaquin snakeweed

native
Perennial herb, Shrub

2021 Helen Hancock

2018 Ron Vanderhoff

2021 Mike Russler

Gutierrezia microcephala Matchweed, Sticky snakeweed, Threadleaf snakeweed

native
Shrub (stem succulent)

2022 Steve Matson

2013 Steve Matson

2024 Manzanita Dictionary

Gutierrezia sarothrae Broom snakeweed, Common snakeweed, Matchweed

native
Shrub

2007 Steve Matson

Gymnocladus dioicus Kentucky coffeetree

non-native
Perennial herb

Gymnosteris parvula Small flowered gymnosteris, Smallflower gymnosteris

native
Annual herb

2023 Steve Ashcraft

2008 Steve Matson

Gypsophila elegans Showy baby's breath

non-native
Annual, Biennial herb

2011 Louis-M. Landry

Gypsophila paniculata Baby's breath

• invasive non-native
Perennial herb

2018 Joe Woods

Hackelia amethystina Amethyst stickseed

• rare native
Perennial herb

2020 R.A. Chasey

2003 Yulan Tong

2020 R.A. Chasey

Hackelia bella Greater showy stickseed

native
Perennial herb

2017 Steve Matson

Hackelia brevicula Poison canyon stickseed

• rare native
Perennial herb

2015 Steve Matson

Hackelia patens Poison canyon stickseed

• rare native
Perennial herb

2015 Steve Matson

Hackelia californica California stickseed

native
Perennial herb

2022 Bob Sweatt

2014 Jim Moore

2022 Bob Sweatt

Hackelia cusickii Cusick stickweed, Cusick's stickseed

• rare native
Perennial herb

2004 Robert E. Preston, Ph.D.

2011 Dean Wm. Taylor, Ph.D.

Hackelia floribunda Many flowered stickseed, Manyflower stickseed

native
Perennial herb

2001 Jeff Abbas

2010 Ron Wolf

2019 Mary Merriman

Hackelia micrantha Jessica sticktight, Jessica's stickseed, Small flowered stickseed

native
Perennial herb

2017 Steve Matson

2004 Steve Matson

2017 Steve Matson

Hackelia mundula Pink stickseed

native
Perennial herb

2021 Melissa Harbert

2015 Mary Merriman

2019 Saskia Raether

Hackelia nervosa Sierra stickseed, Sierran stickseed

native
Perennial herb

2021 R.A. Chasey

2015 Jim Bearden

2019 Talila Golan

Hackelia setosa Bristly stickseed

native
Perennial herb

1995 Saint Mary's College of California

Hackelia sharsmithii Sharsmith's stickseed

• rare native
Perennial herb

2017 Steve Matson

Hackelia velutina Velvet stickseed, Velvety stickseed

native
Perennial herb

2013 James Gonsman

2020 Bob Sweatt

2013 James Gonsman

Hainardia cylindrica Barbgrass, Monerma, Thin tail

non-native
Annual grass

2022 Denise Defreese

2009 Neal Kramer

Halimodendron halodendron Common salttree, Russian salt tree

• invasive non-native
Shrub

2001 CDFA

Halimolobos jaegeri Jaeger's halimolobos, Mojave halimolobos, Rock mustard

native
Perennial herb

2017 Steve Matson

2009 Steve Matson

2015 Steve Matson

Halogeton glomeratus Halogeton, Saltlover

• invasive non-native
Annual herb

2019 Joe Woods

2019 Caleb Cole

Hamamelis virginiana American witchhazel

non-native
Tree

HAMAMELIDACEAE

Harmonia doris-nilesiae Niles's harmonia

• rare native
Annual herb

2019 Steve Matson

Harmonia guggolziorum Guggolz's harmonia

• rare native
Annual herb

2019 Steve Matson

Harmonia hallii Hall's harmonia

• rare native
Annual herb

2020 Matt Berger

2022 Ryan O'Dell

Harmonia nutans Nodding harmonia

• rare native
Annual herb

2017 John Game

2018 John Game

2020 Tim Miller

Harmonia stebbinsii Stebbins's harmonia

• rare native
Annual herb

2019 Steve Matson

Harpagonella palmeri Palmer's grapplinghook

• rare native
Annual herb

2019 Ron Vanderhoff

Hastingsia alba Reed lily, White bog hastingsia, White hastingsia

native
Perennial herb

2018 Charles Russell

2019 Jane Cohn

2015 Steve Matson

Schoenolirion album Reed lily, White bog hastingsia, White hastingsia

native
Perennial herb

2018 Charles Russell

2019 Jane Cohn

2015 Steve Matson

Hastingsia serpenticola Klamath rushlily, Siskiyou hastingsia

native
Perennial herb

2019 Julie Kierstead Nelson

2014 John Doyen

2016 Julie Kierstead Nelson

Hastingsia serpentinicola Klamath rushlily, Siskiyou hastingsia

native
Perennial herb

2019 Julie Kierstead Nelson

2014 John Doyen

2016 Julie Kierstead Nelson

Hazardia brickellioides Brickellbush goldenweed, Brickellia leaved hazardia

native
Shrub

2019 Matt Berger

Hazardia cana Guadalupe hazardia, Island hazardia, San clemente island hazardia

• rare native
Shrub

2009 Zoya Akulova

2005 Dieter Wilken

Hazardia detonsa Island bristleweed, Island hazardia, Northern island haplopappus

• rare native
Shrub

2020 David Greenberger

2014 Roy West

2013 James Gonsman

Hazardia orcuttii Orcutt's bristleweed, Orcutt's hazardia

• rare native
Shrub

2011 Keir Morse

Hazardia squarrosa Saw toothed goldenbush, Sawtooth goldenbush

native
Shrub

2018 Mary Conway

2019 Bonnie Nickel

2022 Ron Vanderhoff

Hazardia squarrosa var. grindelioides Gum plant goldenbush, Saw toothed goldenbush, Sawtooth bristleweed

native
Shrub

2019 Ron Vanderhoff

2023 Ron Vanderhoff

2022 Ron Vanderhoff

Hazardia squarrosa var. obtusa Saw toothed goldenbush, Sawtooth bristleweed

native
Shrub

2006 Steve Matson

Hazardia squarrosa var. squarrosa Saw toothed goldenbush, Sawtooth goldenbush

native
Shrub

2021 Mike Russler

2021 Mary Conway

Hazardia whitneyi Whitney's bristleweed

native
Perennial herb

2017 Steve Matson

Hazardia whitneyi var. discoidea Rayless whitney's goldenbush, Whitney's bristleweed

native
Perennial herb

2017 Steve Matson

Hazardia whitneyi var. whitneyi Whitney's bristleweed, Whitney's goldenbush, Whitney's hazardia

native
Perennial herb

2022 Mike Russler

Hebe speciosa New zealand hebe, Showy hebe

non-native
Shrub

J.W. Thompson1999 California Academy of Sciences

Hebe Xfranciscana Hebe

non-native
Shrub

Hecastocleis shockleyi Shockley's prickleleaf

• rare native
Shrub

2010 Steve Matson

2019 Steve Matson

Hedeoma drummondii Drummond's false pennyroyal

• rare native
Shrub (stem succulent)

2009 Lee Dittmann

2005 James M. Andre

2016 Wynn Anderson

Hedeoma nana Dwarf false pennyroyal

native
Perennial herb

2006 Steve Matson

Hedeoma nana ssp. californica California false pennyroyal

• rare native
Perennial herb

2006 Steve Matson

Hedeoma nanum var. californicum Mock pennyroyal

native
Perennial herb

2004 James M. Andre

Hedera canariensis Canary ivy, Algerian ivy

• invasive non-native
Vine

2018 Sara Witt

2018 Ron Vanderhoff

2016 Ron Vanderhoff

Hedera helix English ivy

• invasive non-native
Vine, Shrub

2019 Claire Mallen

2017 Allison Titus

2022 Catherine Talbot

Hedwigia detonsa

native
Moss

HEDWIGIACEAE

2013 calbryos group

2016 Richard Spjut

2013 Scot Loring

Hedwigia stellata

native
Moss

HEDWIGIACEAE

2005 Chris Wagner

Hedychium flavescens Cream garland lily

non-native
Perennial herb

ZINGIBERACEAE

2010 Moorea Biocode

Hedychium gardnerianum Kahila garland-lily

non-native
Perennial herb

ZINGIBERACEAE

Hedypnois cretica Crete weed

non-native
Annual herb

2012 Michael Perlmutter

2022 Steve Matson

Hedypnois rhagadioloides Crete weed

non-native
Annual herb

2012 Michael Perlmutter

2022 Steve Matson

Helenium amarum Yellow sneezeweed, Yellowdicks

non-native
Annual herb

2001 CDFA

Helenium amarum var. badium Yellow sneezeweed, Yellowdicks

non-native
Annual herb

2001 CDFA

Helenium amarum var. amarum Yellowdicks

non-native
Annual herb

Helenium autumnale Common sneezeweed

native
Perennial herb

2017 Dean Goeren

2007 Louis-M. Landry

2004 Nick Kurzenko

Helenium autumnale var. grandiflorum Common sneezeweed

native
Perennial herb

2017 Dean Goeren

2007 Louis-M. Landry

2004 Nick Kurzenko

Helenium autumnale var. montanum Common sneezeweed

native
Perennial herb

2017 Dean Goeren

2007 Louis-M. Landry

2004 Nick Kurzenko

Helenium bigelovii Bigelow's sneezeweed, Sneezeweed

native
Perennial herb

2020 Rebecca Schoenenberger

2019 Bryant Baker

2019 Bob Sweatt

Helenium bolanderi Bolander's sneezeweed, Coastal sneezeweed

native
Perennial herb

2022 R.A. Chasey

2020 Mary Sue Ittner

Helenium puberulum Rosilla, Sneezeweed

native
Perennial herb

2021 Mike Russler

2019 Patrick Furtado

2018 Rachelle Gray

Helianthella californica California helianthella

native
Perennial herb

2019 Suzanne L. Weakley

2020 Julie A. Kierstead

2023 John Rawlings

Helianthella californica var. californica California helianthella

native
Perennial herb

Helianthella californica var. californica

2023 Helen Hancock

2019 Chasey

Helianthella californica var. nevadensis California helianthella, Nevada helianthella, Sierra helianthella

native
Perennial herb

Helianthella californica var. nevadensis

2021 Eric Engles

2019 David Greenberger

2023 Mary Merriman

Helianthella californica var. shastensis Shasta helianthella

native
Perennial herb

Helianthella californica var. shastensis

2018 Glenn Fine

2023 Alaine Arslan

Helianthella castanea Mt. diablo helianthella

• rare native
Perennial herb

2022 Michael L. Uhler

2019 David Greenberger

2019 Adam Chasey

Helianthus angustifolius Swamp sunflower

non-native
Annual, Perennial herb

Helianthus annuus Common sunflower, Hairy leaved sunflower, Sunflower

native
Annual herb

2019 Bob Case

2021 Mike Russler

Helianthus bolanderi Bolander's sunflower, Serpentine sunflower

native
Annual, Perennial herb

2013 Bob Case

2022 Paul Watts

2022 Alaine Arslan

Helianthus californicus California sunflower

native
Perennial herb

2021 Mike Russler

2020 David Greenberger

2021 Mike Russler

Helianthus ciliaris Texas blueweed

• invasive non-native
Perennial herb

2001 CDFA

Helianthus cusickii Cusick's sunflower

native
Perennial herb

2015 John Doyen

2008 Matt Below

2015 John Doyen

Helianthus exilis Serpentine sunflower

• rare native
Annual herb

2019 Amida Verhey

2021 Mike Russler

2020 Charles Russell

Helianthus gracilentus Slender sunflower

native
Perennial herb

2021 Ron Vanderhoff

2021 Mike Russler

2021 Diane Etchison

Helianthus inexpectatus Newhall sunflower

• rare native
Perennial herb

2012 Anuja Parikh and Nathan Gale

Helianthus laciniatus Alkali sunflower

non-native
Annual, Perennial herb

Helianthus maximilianii Maximilian sunflower

non-native
Perennial herb

2011 Gina Darin

Helianthus niveus Desert sunflower, Showy sunflower, Silver leaved sunflower

native
Annual, Perennial herb

2020 Linda Pardy

2019 Matt Berger

Helianthus niveus ssp. tephrodes Algodones dunes sunflower, Algodones sunflower

• rare native
Perennial herb

2020 Linda Pardy

2019 Matt Berger

2020 Linda Pardy

Helianthus nuttallii Nuttall's sunflower

native
Perennial herb

2013 Steve Matson

Helianthus nuttallii ssp. rydbergii Nuttall's sunflower

native
Perennial herb

2013 Steve Matson

Helianthus nuttallii ssp. nuttallii Nuttall's sunflower

native
Perennial herb

2013 Steve Matson

Helianthus petiolaris Prairie sunflower

non-native
Perennial herb

2014 Keir Morse

Helianthus niveus ssp. canescens Gray desert sunflower

native
Annual, Perennial herb

2014 Keir Morse

Helianthus petiolaris ssp. canescens Gray desert sunflower

native
Annual, Perennial herb

2014 Keir Morse

Helianthus petiolaris ssp. petiolaris Prairie sunflower

non-native
Perennial herb

2015 Richard Spellenberg

Helianthus tuberosus Jerusalem artichoke

• invasive non-native
Perennial herb

2019 Jennifer Mo

Helianthus winteri Winter's sunflower

• rare native
Shrub

2021 Duncan S. Bell

2021 Mike Russler

2022 Mike Russler

Helichrysum petiolare Licorice plant

• invasive non-native
Shrub, Vine

2021 Elliot Gunnison

2022 Mike Russler

Heliomeris multiflora Showy goldeneye

native
Perennial herb

2022 Steve Matson

Heliomeris multiflora var. multiflora Showy goldeneye

native
Perennial herb

2022 Steve Matson

Heliomeris multiflora var. nevadensis Golden eye, Nevada goldeneye

native
Perennial herb

2022 Steve Matson

Heliotropium amplexicaule Clasping heliotrope

• invasive non-native
Perennial herb

2014 John L. Thompson

2020 Henry Inman

2014 John L. Thompson

Heliotropium convolvulaceum Phlox heliotrope

native
Annual herb

2005 James M. Andre

2010 Jean Pawek

Heliotropium convolvulaceum var. californicum Morning glory heliotrope, Phlox heliotrope

native
Annual herb

Heliotropium convolvulaceum var. californicum

2015 Keir Morse

2001 Kathi Ellsworth

2015 Keir Morse

Heliotropium curassavicum Chinese parsley, Heliotrope, Salt heliotrope

native
Perennial herb

2019 Aaron Echols

2021 Mary Wloch

2019 Wyatt Dooley

Heliotropium curassavicum var. oculatum Alkali heliotrope, Seaside heliotrope

native
Perennial herb

2019 Rachelle Gray

2018 Ron Vanderhoff

2019 Ron Vanderhoff

Heliotropium europaeum European heliotrope

non-native
Annual herb

2021 Tracy J Wyckoff

2022 Ramona Robison

2021 David popp

Helipterum roseum

non-native
Annual herb

Helminthotheca echioides Bristly ox-tongue

• invasive non-native
Annual, Perennial herb

2016 Hayley Ross

2019 Rachelle Gray

2012 Elizabeth Brusati

Picris echioides Bristly ox-tongue

• invasive non-native
Annual, Perennial herb

2016 Hayley Ross

2019 Rachelle Gray

2012 Elizabeth Brusati

Helodium blandowii Blandow's helodium moss

• rare native
Moss

HELODIACEAE

2002 John Game

Hemerocallis fulva Orange daylily

non-native
Perennial herb (bulb)

2021 Ron Vanderhoff

Hemieva ranunculifolia Buttercup-leaf suksdorfia

• rare native
Perennial herb

2017 Dana York

Hemitomes congestum Coneplant, Gnome plant

native
Perennial herb (mycoparasitic)

2016 William Maslach

2016 Robert Ferber

2019 Ken Hickman

Hemizonella minima Opposite leaved tarweed

native
Annual herb

2021 Steve Matson

Madia minima Opposite leaved tarweed

native
Annual herb

2021 Steve Matson

Hemizonia congesta Hayfield tarweed

native
Annual herb

2019 Steve Matson

2016 Steve Matson

Hemizonia congesta ssp. calyculata Hayfield tarweed, Mendocino tarplant

• rare native
Annual herb

2021 Cynthia Powell

Hemizonia congesta ssp. clevelandii Cleveland's tarweed, Hayfield tarweed

native
Annual herb

2019 Steve Matson

Hemizonia congesta ssp. congesta Hayfield tarweed

• rare native
Annual herb

2021 R.A. Chasey

2022 Hunter Breck

Hemizonia congesta ssp. lutescens Hayfield tarweed

native
Annual herb

2021 R.A. Chasey

2023 R.A. Chasey

Hemizonia congesta ssp. luzulifolia Hayfield tarweed, Woodrush tarweed

native
Annual herb

2013 Arcangelo Wessells

2022 R.A. Chasey

Hemizonia congesta ssp. tracyi Hayfield tarweed, Tracy's tarplant

• rare native
Annual herb

2016 Steve Matson

Heracleum lanatum Common cow parsnip

native
Perennial herb

2019 Bob Sweatt

2008 Neal Kramer

2021 Julie A. Kierstead

Heracleum maximum Common cow parsnip

native
Perennial herb

2019 Bob Sweatt

2008 Neal Kramer

2021 Julie A. Kierstead

Heracleum sphondylium Common cow parsnip

native
Perennial herb

2019 Bob Sweatt

2008 Neal Kramer

2021 Julie A. Kierstead

Heracleum sphondylium ssp. montanum Common cow parsnip

native
Perennial herb

2019 Bob Sweatt

2008 Neal Kramer

2021 Julie A. Kierstead

Herissantia crispa Bladdermallow, Curly herissantia

• rare native
Annual, Perennial herb

2012 Chris Trask

2004 Debra Valov

Herniaria hirsuta Hairy rupturewort, Herniaria

non-native
Annual herb

2022 R.A. Chasey

2022 Donald Burk

Herniaria hirsuta ssp. cinerea Herniaria

non-native
Annual herb

2016 Michael Mitchell

Herniaria hirsuta var. cinerea Herniaria

non-native
Annual herb

2016 Michael Mitchell

Herniaria hirsuta var. hirsuta Herniaria

non-native
Annual herb

2022 Donald Burk

2009 Barry Breckling

Hesperevax acaulis Dwarf evax, Stemless dwarf cudweed

native
Annual herb

2022 joaquin hale

2022 Ken Hickman

2022 joaquin hale

Hesperevax acaulis var. acaulis Dwarf evax, Stemless dwarf cudweed

native
Annual herb

2022 joaquin hale

Hesperevax acaulis var. ambusticola Fire evax, Stemless dwarf cudweed

native
Annual herb

2022 Ken Hickman

2021 R.A. Chasey

2022 Ken Hickman

Hesperevax acaulis var. robustior Big evax, Stemless dwarf cudweed

native
Annual herb

2021 Jacob Smith

2019 Asa Spade

2021 Jacob Smith

Hesperevax caulescens Dwarf dwarf cudweed, Hogwallow starfish

• rare native
Annual herb

2018 John Dittes

2020 Phil Johnson

2022 Steve Matson

Hesperevax sparsiflora var. brevifolia Short leaved evax, Shortleaf dwarf cudweed

• rare native
Annual herb

2021 R.A. Chasey

2021 Vernon Smith

Hesperevax sparsiflora var. sparsiflora Erect dwarf cudweed, Few flowered evax

native
Annual herb

2020 Stacie Wolny

2020 R.A. Chasey

2022 R.A. Chasey

Hesperidanthus jaegeri Jaeger's hesperidanthus

• rare native
Perennial herb

2011 Steve Matson

Hesperis matronalis Dame's rocket, Dames rocket, Rocket

non-native
Biennial, Perennial herb

2019 Bob Sweatt

2007 Louis-M. Landry

2002 Jennifer Forman

Hesperocallis undulata Desert lily

native
Perennial herb

2019 Susan McDougall

2010 Steve Matson

Hesperochiron californicus California hesperochiron

native
Perennial herb

2020 Bob Sweatt

2018 David popp

2020 Bob Sweatt

Hesperochiron pumilus Dwarf hesperochiron

native
Perennial herb

2023 Kobi Mills

2021 Dana York

2020 Julie A. Kierstead

Hesperocnide tenella Western nettle, Western stinging nettle, Western stingingnettle

native
Annual herb

2023 Ken-ichi Ueda

2006 Steve Matson

2020 Ken Hickman

Hesperocyparis abramsiana Santa cruz cypress

native
Tree

2021 R.A. Chasey

Hesperocyparis abramsiana var. abramsisana Santa cruz cypress

native
Tree

Hesperocyparis abramsiana var. abramsisana

2021 R.A. Chasey

Hesperocyparis abramsiana var. abramsiana Santa cruz cypress

• rare native
Tree

Hesperocyparis abramsiana var. abramsiana

2021 R.A. Chasey

2019 Susan McDougall

Hesperocyparis abramsiana var. butanoensis Santa cruz cypress

• rare native
Tree

Hesperocyparis abramsiana var. butanoensis

2022 Michael Heine

2011 Joey Malone

Callitropsis bakeri Baker's cypress

• rare native
Tree

2014 David popp

2007 Michael Kauffmann

Cupressus bakeri Baker's cypress

• rare native
Tree

2014 David popp

2007 Michael Kauffmann

Hesperocyparis bakeri Baker's cypress

• rare native
Tree

2014 David popp

2007 Michael Kauffmann

Cupressus forbesii Tecate cypress

• rare native
Tree

2022 Ron Vanderhoff

2021 Ron Vanderhoff

2020 Aaron Echols

Hesperocyparis forbesii Tecate cypress

• rare native
Tree

2022 Ron Vanderhoff

2021 Ron Vanderhoff

2020 Aaron Echols

Cupressus goveniana Gowen cypress

• rare native
Tree

2019 Susan McDougall

F. Howitt � 2007 California Academy of Sciences

Hesperocyparis goveniana Gowen cypress

• rare native
Tree

2019 Susan McDougall

F. Howitt � 2007 California Academy of Sciences

Cupressus macnabiana Macnab cypress

native
Tree, Shrub

2021 Christopher Collier

2022 R.A. Chasey

Hesperocyparis macnabiana Macnab cypress

native
Tree, Shrub

2021 Christopher Collier

2022 R.A. Chasey

Cupressus macrocarpa Monterey cypress

native
Tree

2019 Patrick Furtado

2019 Susan McDougall

2019 Cynthia Powell

Hesperocyparis macrocarpa Monterey cypress

native
Tree

2019 Patrick Furtado

2019 Susan McDougall

2019 Cynthia Powell

Cupressus arizonica var. nevadensis Piute cypress

• rare native
Tree

2016 Richard Spjut

2012 Joey Malone

2008 Matt Teel

Hesperocyparis nevadensis Piute cypress

• rare native
Tree

2016 Richard Spjut

2012 Joey Malone

2008 Matt Teel

Hesperocyparis pigmaea Pygmy cypress

native
Tree

2019 Susan McDougall

2021 Alison Gardner

Cupressus goveniana ssp. pygmaea Pygmy cypress

• rare native
Tree

2019 Susan McDougall

2020 R.A. Chasey

2019 Susan McDougall

Cupressus pygmaea Pygmy cypress

• rare native
Tree

2019 Susan McDougall

2020 R.A. Chasey

2019 Susan McDougall

Hesperocyparis pygmaea Pygmy cypress

• rare native
Tree

2019 Susan McDougall

2020 R.A. Chasey

2019 Susan McDougall

Cupressus sargentii Sargent cypress

native
Tree, Shrub

2021 Bryant Baker

2021 R.A. Chasey

2021 Bryant Baker

Hesperocyparis sargentii Sargent cypress

native
Tree, Shrub

2021 Bryant Baker

2021 R.A. Chasey

2021 Bryant Baker

Cupressus arizonica Cuyamaca cypress

• rare native
Tree

2022 Ron Vanderhoff

Cupressus arizonica var. glabra Cuyamaca cypress

• rare native
Tree

2022 Ron Vanderhoff

Cupressus stephensonii Cuyamaca cypress

• rare native
Tree

2022 Ron Vanderhoff

Hesperocyparis stephensonii Cuyamaca cypress

• rare native
Tree

2022 Ron Vanderhoff

Hesperolinon adenophyllum Glandular dwarf flax, Glandular western flax

• rare native
Annual herb

2002 John Game

2006 Kerry Heise

Hesperolinon bicarpellatum Two carpellate western flax, Twocarpel dwarf flax

• rare native
Annual herb

2017 John Game

2021 R.A. Chasey

2017 Adam Chasey

Hesperolinon serpentinum Two carpellate western flax, Twocarpel dwarf flax

• rare native
Annual herb

2017 John Game

2021 R.A. Chasey

2017 Adam Chasey

Hesperolinon breweri Brewer's dwarf flax, Brewer's western flax

• rare native
Annual herb

2021 R.A. Chasey

2019 R.A. Chasey

2007 Aaron Schusteff

Hesperolinon californicum California western flax, California dwarf flax

native
Annual herb

2021 R.A. Chasey

2021 Cynthia Powell

2008 Neal Kramer

Hesperolinon clevelandii Allen springs dwarf flax, Allen springs western flax

native
Annual herb

2020 David Greenberger

2022 R.A. Chasey

Hesperolinon congestum Marin dwarf flax, Marin western flax

• rare native
Annual herb

2021 Charles Russell

2019 David Greenberger

2016 David Greenberger

Hesperolinon disjunctum Coast range dwarf flax, Coast range western flax

native
Annual herb

2019 Steve Matson

Hesperolinon drymarioides Drymaria like western flax, Drymary dwarf flax

• rare native
Annual herb

Niall McCarten and CNPS

2013 Jake Ruygt

Niall McCarten and CNPS

Hesperolinon micranthum Common dwarf flax, Small flower western flax, Small flowered dwarf flax

native
Annual herb

2020 David Greenberger

2023 R.A. Chasey

2021 R.A. Chasey

Hesperolinon sharsmithiae Sharsmith's western flax

• rare native
Annual herb

2022 R.A. Chasey

Hesperolinon spergulinum Slender dwarf flax, Slender western flax

native
Annual herb

2021 R.A. Chasey

Hesperolinon tehamense Paskenta grade dwarf flax, Tehama county western flax

• rare native
Annual herb

Roxanne Bittman and CNPS

1997 Dean Wm. Taylor

Hesperomecon linearis Narrowleaf queen poppy

native
Annual herb

2021 Mary Conway

2021 Karen Swift

Hesperoyucca whipplei Chaparral yucca

native
Shrub

Geoff Burleigh

2023 Jordan Collins

2020 Julia Markey

Hesperoyucca whipplei var. eremica Chaparral yucca

native
Shrub

Geoff Burleigh

2023 Jordan Collins

2020 Julia Markey

Hesperoyucca whipplei var. newberryi Chaparral yucca

native
Shrub

Geoff Burleigh

2023 Jordan Collins

2020 Julia Markey

Yucca whipplei Chaparral yucca

native
Shrub

Geoff Burleigh

2023 Jordan Collins

2020 Julia Markey

Yucca whipplei ssp. eremica Chaparral yucca

native
Shrub

Geoff Burleigh

2023 Jordan Collins

2020 Julia Markey

Yucca whipplei ssp. parishii Chaparral yucca

native
Shrub

Geoff Burleigh

2023 Jordan Collins

2020 Julia Markey

Yucca whipplei var. eremica Chaparral yucca

native
Shrub

Geoff Burleigh

2023 Jordan Collins

2020 Julia Markey

Heteranthemis viscidihirta Sand chrysanthemum

non-native
Annual herb

2012 Zoya Akulova

2015 Richard Spellenberg

2012 Zoya Akulova

Heteranthera dubia Grassleaf mudplantain, Water star grass

• rare native
Perennial herb

2008 Louis-M. Landry

Heteranthera limosa Blue mud plantain, Blue mudplantain

non-native
Perennial herb

2022 Charles Russell

2001 CDFA

Heterocodon rariflorum Few flowered heterocodon, Rareflower heterocodon, Western pear flower

native
Annual herb

2022 Steve Matson

Heteromeles arbutifolia Christmas berry, Toyon

native
Shrub

2015 James Gonsman

2017 Gary McDonald

Heteropogon contortus Tanglehead

native
Perennial grass

2008 Steve Matson

Heterotheca grandiflora Telegraph weed, Telegraphweed

native
Annual, Perennial herb

2021 Mike Russler

Heterotheca monarchensis Sequoia false goldenaster

• rare native
Perennial herb

1996 Dana York

Heterotheca oregona Oregon false goldenaster, Oregon golden aster

native
Perennial herb

2021 Steve Laymon

2021 Helen Hancock

Heterotheca oregona var. compacta Compact oregon goldenaster, Oregon false goldenaster

native
Perennial herb

2021 Steve Laymon

2019 David popp

2021 Steve Laymon

Heterotheca oregona var. oregona Oregon false goldenaster, Oregon goldenaster

native
Perennial herb

2022 Dana York

2020 Susan McDougall

Heterotheca oregona var. rudis Oregon false goldenaster, Red oregon goldenaster

native
Perennial herb

2021 Helen Hancock

Heterotheca oregona var. scaberrima Oregon false goldenaster, Rough oregon goldenaster

native
Perennial herb

2017 Ken-ichi Ueda

2017 Christopher Hauser

2014 Richard Spellenberg

Heterotheca sessiliflora Golden aster, Sessileflower false goldenaster

native
Annual herb

2021 Jay Cassianni

2019 Cynthia Powell

2018 Stacie Wolny

Heterotheca sessiliflora ssp. bolanderi Bolander's goldenaster, Golden aster, Sessileflower false goldenaster

native
Perennial herb

2015 Tim Miller

2020 Mary Sue Ittner

2019 Julia King

Heterotheca sessiliflora ssp. echioides Bristly goldenaster, Sessileflower false goldenaster

native
Perennial herb

2021 Mike Russler

2018 Ron Vanderhoff

Heterotheca sessiliflora ssp. fastigiata Erect goldenaster, Sessileflower false goldenaster

native
Perennial herb

Heterotheca sessiliflora ssp. fastigiata

2017 dora black

2002 Hartmut Wisch

Heterotheca sessiliflora ssp. sessiliflora Sessileflower false goldenaster

• rare native
Perennial herb

Heterotheca sessiliflora ssp. sessiliflora

2022 Carolyn Harper

2015 David Varner

Heterotheca shevockii Shevock's golden aster

• rare native
Perennial herb

2021 Mike Russler

Heterotheca subaxillaris Camphorweed

native
Perennial herb

2015 Richard Spellenberg

2014 Richard Spellenberg

Heterotheca subaxillaris ssp. subaxillaris Camphorweed

native
Perennial herb

Heterotheca subaxillaris ssp. subaxillaris

2015 Richard Spellenberg

2014 Richard Spellenberg

Heterotheca subaxillaris ssp. latifolia Camphor weed

native
Annual, Perennial herb

2015 Jean Pawek

Chrysopsis villosa Hairy false goldenaster, Hairy goldenaster

native
Perennial herb

2015 Steve Matson

Heterotheca villosa Hairy false goldenaster, Hairy goldenaster

native
Perennial herb

2015 Steve Matson

Heterotheca villosa var. ballardii Hairy false goldenaster, Hairy goldenaster

native
Perennial herb

2015 Steve Matson

Heterotheca villosa var. nana Hairy false goldenaster, Hairy goldenaster

native
Perennial herb

2015 Steve Matson

Heterotheca villosa var. pedunculata Hairy false goldenaster, Hairy goldenaster

native
Perennial herb

2015 Steve Matson

Heterotheca villosa var. villosa Hairy false goldenaster, Hairy goldenaster

native
Perennial herb

2015 Steve Matson

Heterotheca villosa var. minor Hairy false goldenaster

native
Perennial herb

2015 Steve Matson

Heuchera abramsii Abrams's alumroot, San gabriel alumroot

• rare native
Perennial herb (rhizomatous)

2005 Charles E. Jones

Heuchera caespitosa Urn-flowered alumroot

• rare native
Perennial herb

2019 Aaron Echols

2019 Diane Etchison

Heuchera elegans Urn-flowered alumroot

• rare native
Perennial herb

2019 Aaron Echols

2019 Diane Etchison

Heuchera cylindrica Roundleaf alumroot, Alpine alumroot

native
Perennial herb

2006 Steve Matson

Heuchera cylindrica var. alpina Roundleaf alumroot, Alpine alumroot

native
Perennial herb

2006 Steve Matson

Heuchera cylindrica var. glabella Roundleaf alumroot, Alpine alumroot

native
Perennial herb

2006 Steve Matson

Heuchera hirsutissima Shaggy haired alumroot, Shaggyhair alumroot

• rare native
Perennial herb (rhizomatous)

2009 Thomas Stoughton

2015 Keir Morse

Heuchera maxima Island alum root, Island alumroot, Jill of the rocks

• rare native
Perennial herb (rhizomatous)

2014 Steve Matson

Heuchera merriamii Merriam's alumroot

native
Perennial herb

2015 Steve Matson

Heuchera micrantha Alum root, Crevice alumroot

native
Perennial herb

2008 Steve Matson

Heuchera micrantha ssp. erubescens Alum root, Crevice alumroot

native
Perennial herb

2008 Steve Matson

Heuchera micrantha var. diversifolia Alum root, Crevice alumroot

native
Perennial herb

2008 Steve Matson

Heuchera parishii Mill creek alumroot, Parish's alumroot

• rare native
Perennial herb (rhizomatous)

2012 Keir Morse

Heuchera parvifolia Littleleaf alumroot

native
Perennial herb (rhizomatous)

2009 Steve Matson

2015 Steve Matson

Heuchera parvifolia var. utahensis Littleleaf alumroot

native
Perennial herb (rhizomatous)

2009 Steve Matson

2015 Steve Matson

Heuchera pilosissima Alum root, Seaside alumroot

native
Perennial herb

2021 Mary Conway

2018 Hayley Ross

Heuchera rubescens Pink alumroot

native
Perennial herb

2011 Steve Matson

2019 Cynthia Powell

2005 Steve Matson

Heuchera rubescens var. versicolor Pink alumroot, San diego county alumroot

• rare native
Perennial herb (rhizomatous)

2013 Richard Spellenberg

Heuchera sanguinea Coralbells

non-native
Perennial herb

Hibiscus denudatus Paleface, Rock Hibiscus

native
Perennial herb

2013 James Gonsman

2023 Irene Rosen

2019 Matt Berger

Hibiscus lasiocarpos Rose mallow

native
Perennial herb (rhizomatous)

2020 Charles Russell

Hibiscus lasiocarpos var. occidentalis Woolly rose-mallow

• rare native
Perennial herb

2020 Charles Russell

2021 David popp

2022 Morgan Stickrod

Hibiscus lasiocarpus Woolly rose-mallow

• rare native
Perennial herb

2020 Charles Russell

2021 David popp

2022 Morgan Stickrod

Hibiscus rosa-sinensis Shoeblackplant

non-native
Perennial herb

2021 Ron Vanderhoff

Hibiscus syriacus Rose of sharon

non-native
Perennial herb

Hibiscus trionum Flower of an hour

non-native
Annual herb

2015 Charles Russell

2004 Dr. Amadej Trnkoczy

Hieracium albiflorum White flowered hawkweed, White hawkweed

native
Perennial herb

2003 Steve Matson

2021 Doug Allshouse

2020 Bob Sweatt

Hieracium argutum Southern hawkweed

native
Perennial herb

2015 Justin Luong

2020 David Greenberger

Hieracium aurantiacum Orange flowered hawkweed, Orange hawkweed

non-native
Perennial herb

2005 Louis-M. Landry

2014 Yoseinvasives 3

2010 Jeff Abbas

Hieracium bolanderi Bolander's hawkweed

native
Perennial herb

2017 Steve Matson

Hieracium greenei Greene's hawkweed

native
Perennial herb

2020 Alaine Arslan

2009 Neal Kramer

Hieracium horridum Prickly hawkweed, Shaggy hawkweed

native
Perennial herb

2022 Cynthia Powell

2022 Mike Russler

2020 Bob Sweatt

Hieracium nudicaule Naked stemmed scouler's hawkweed

native
Perennial herb

2022 Dana York

Hieracium parryi Scouler's woollyweed

native
Perennial herb

2008 Keir Morse

2016 Keir Morse

Hieracium cynoglossoides Hounds tongue hawkweed, Houndstongue hawkweed, Scouler's hawkweed

native
Perennial herb

2011 Steve Matson

Hieracium scouleri Hounds tongue hawkweed, Houndstongue hawkweed, Scouler's hawkweed

native
Perennial herb

2011 Steve Matson

Hieracium gracile Woolly hawkweed

native
Perennial herb

2022 Dana York

2020 Bob Sweatt

2010 Keir Morse

Hieracium triste Woolly hawkweed

native
Perennial herb

2022 Dana York

2020 Bob Sweatt

2010 Keir Morse

Hilaria jamesii Galleta

native
Perennial grass

2009 Steve Matson

Pleuraphis jamesii Galleta

native
Perennial grass

2009 Steve Matson

Hilaria rigida Big galleta

native
Perennial grass

2008 Steve Matson

2020 David Greenberger

Pleuraphis rigida Big galleta

native
Perennial grass

2008 Steve Matson

2020 David Greenberger

Hippuris vulgaris Common mare's tail, Common mares tail, Mare's tail

native
Perennial herb (aquatic)

2019 Bob Sweatt

2018 Isaac Chellman

2008 Dean Wm. Taylor, Ph.D.

Brassica geniculata Mediterranean hoary mustard, Short podded mustard, Summer mustard

• invasive non-native
Perennial herb

2017 Gary McDonald

2022 Ron Vanderhoff

Hirschfeldia incana Mediterranean hoary mustard, Short podded mustard, Summer mustard

• invasive non-native
Perennial herb

2017 Gary McDonald

2022 Ron Vanderhoff

Hoffmannseggia drepanocarpa Sicklepod holdback

non-native
Shrub

Hoffmannseggia glauca Hoffmanseggia, Hog potato, Indian rushpea

native
Perennial herb

2020 David Greenberger

2020 Timothy Blank

2019 Richard Spjut

Hoffmannseggia microphylla Wand holdback

native
Shrub

2020 Matt Berger

2019 Susan McDougall

Hoita macrostachya California hemp, Large leather root

native
Perennial herb

2020 Ron Vanderhoff

2022 Natalie McNear

2021 Julie King

Psoralea macrostachya California hemp, Large leather root

native
Perennial herb

2020 Ron Vanderhoff

2022 Natalie McNear

2021 Julie King

Hoita orbicularis Creeping leather root, Round leaved psoralea, Roundleaf leather root

native
Perennial herb

2015 Tim Miller

2018 Hunter Breck

2019 Shane Hanofee

Hoita strobilina Loma prieta psoralea

• rare native
Perennial herb

2020 Stacie Wolny

2017 S Hinton

2018 Barry Thomson

Holcus lanatus Common velvetgrass, Velvet grass, Velvetgrass

• invasive non-native
Perennial grass

2019 Bill Haley

Holcus mollis Creeping velvetgrass

non-native
Perennial grass

2008 Steve Matson

Hollisteria lanata False spikeflower, False spineflower

native
Annual herb

2021 Mike Russler

2016 Steve Matson

Holmgrenanthe petrophila Rocklady

• rare native
Perennial herb

2020 Matt Berger

2019 John Game

2020 Matt Berger

Holocarpha heermannii Heermann's tarweed

native
Annual herb

2018 Richard Spjut

2022 Cynthia Powell

Holocarpha macradenia Santa cruz tarplant

• rare native
Annual herb

2019 Denise Wight

2001 John Game

2019 Michele Hammond

Holocarpha obconica San joaquin tarweed

native
Annual herb

2019 Steve Matson

Holocarpha virgata Narrow tarplant, Pitgland tarweed, Yellowflower tarweed

native
Annual herb

2019 Steve Matson

2019 stephen rosenthal

Holocarpha virgata ssp. elongata Graceful tarplant, Wand tarbush

• rare native
Annual herb

2020 Mary Wloch

2021 Ron Vanderhoff

Holocarpha virgata ssp. virgata Narrow tarplant, Yellowflower tarweed

native
Annual herb

2019 Steve Matson

Holodiscus discolor Cream bush, Ocean spray, Oceanspray

native
Shrub

2017 Steve Matson

2022 Steve Matson

Holodiscus discolor var. dumosus Cream bush, Ocean spray, Oceanspray

native
Shrub

2017 Steve Matson

2022 Steve Matson

Holodiscus dumosus Cream bush, Ocean spray, Oceanspray

native
Shrub

2017 Steve Matson

2022 Steve Matson

Holodiscus dumosus var. cedorus Cream bush, Ocean spray, Oceanspray

native
Shrub

2017 Steve Matson

2022 Steve Matson

Holodiscus dumosus var. cedrorum Cream bush, Ocean spray, Oceanspray

native
Shrub

2017 Steve Matson

2022 Steve Matson

Holodiscus glabrescens Cream bush, Ocean spray, Oceanspray

native
Shrub

2017 Steve Matson

2022 Steve Matson

Holodiscus discolor var. discolor Oceanspray

native
Shrub

2022 R.A. Chasey

2021 R.A. Chasey

2010 Avis Boutell

Holodiscus discolor var. glabrescens Rock spiraea

native
Shrub

2018 David popp

2023 Jamie Spielmann

Holodiscus microphyllus var. glabrescens Rock spiraea

native
Shrub

Holodiscus microphyllus var. glabrescens

2018 David popp

2023 Jamie Spielmann

Holodiscus discolor var. microphyllus Small-leaf creambush

native
Shrub

2016 Steve Matson

2017 Steve Matson

2022 Steve Matson

Holodiscus microphyllus var. microphyllus Small-leaf creambush

native
Shrub

Holodiscus microphyllus var. microphyllus

2016 Steve Matson

2017 Steve Matson

2022 Steve Matson

Holosteum umbellatum Jagged chickweed

non-native
Annual herb

2007 Gerald Carr

Holozonia filipes Greene's white crown, Holozonia, Whitecrown

native
Perennial herb

2015 Steve Matson

2022 R.A. Chasey

2023 R.A. Chasey

Homalocladium platycladum Ribbonbush

non-native
Perennial herb

Chlorogalum parviflorum

native
Perennial herb

2022 Scott Henry

2014 Diane Etchison

Chlorogalum purpureum

native
Perennial herb

2011 Jeffrey Hapeman

2017 Heather Schneider

2011 Jeffrey Hapeman

Hordeum arizonicum Arizona barley, Arizona foxtail

native
Annual grass

2011 Steve Matson

Hordeum brachyantherum Meadow barley

native
Perennial grass

2015 Steve Matson

Hordeum brachyantherum ssp. brachyantherum Meadow barley

native
Perennial grass

Hordeum brachyantherum ssp. brachyantherum

2015 Steve Matson

Hordeum brachyantherum ssp. californicum California barley, California meadow barley

native
Perennial grass

Hordeum brachyantherum ssp. californicum

2011 Steve Matson

Hordeum depressum Alkali barley, Dwarf barley, Low barley

native
Annual grass

2017 Steve Matson

Hordeum intercedens Bobtail barley, Little barley, Vernal barley

• rare native
Annual grass

2006 Steve Matson

2009 Stanley Spencer

2006 Steve Matson

Hordeum jubatum Fox tail barley, Foxtail barley, Squirreltail barley

native
Perennial grass

2019 Rachelle Gray

2009 Barry Rice

2009 Zoya Akulova

Hordeum jubatum ssp. jubatum Foxtail barley, squirreltail barley

native
Perennial grass

null

2019 Barry Breckling

2013 Aaron Arthur

Hordeum marinum Seaside barley

• invasive non-native
Annual grass

2015 Chris Jaster

2017 Julia Dorosh

2015 Chris Jaster

Hordeum marinum ssp. gussoneanum Barley, Mediterranean barley

non-native
Annual grass

2018 Carolyn

2020 Paul Aigner

2017 Toni Corelli

Hordeum murinum Farmer's foxtail, Foxtail barley, Mouse barley

• invasive non-native
Annual grass

2018 Gary McDonald

2019 Gary McDonald

2017 Gary McDonald

Hordeum murinum ssp. glaucum Blue foxtail, Smooth barley

non-native
Annual grass

2018 Gary McDonald

2019 Gary McDonald

2017 Gary McDonald

Hordeum murinum ssp. leporinum Farmer's foxtail, Foxtail barley, Hare barley

non-native
Annual grass

2022 Ron Vanderhoff

2021 Al Keuter

2021 Ron Vanderhoff

Hordeum vulgare Common barley

non-native
Annual grass

2019 Ron Vanderhoff

2022 Ron Vanderhoff

Horkelia bolanderi Bolander's horkelia, Border horkelia

• rare native
Perennial herb

2015 Tim Miller

2019 Steve Matson

Horkelia californica California horkelia

native
Perennial herb

2023 R.A. Chasey

2020 Mary Conway

2023 R.A. Chasey

Horkelia californica var. californica California horkelia

native
Perennial herb

2020 Mary Conway

2021 Mary Conway

2015 Toni Corelli

Horkelia californica var. elata California horkelia

native
Perennial herb

2019 David Greenbeger

2018 Steven Perry

2022 Jim Xerogeanes

Horkelia californica var. frondosa California horkelia

native
Perennial herb

2022 Mark Gary

2016 John Doyen

Horkelia clevelandii Cleveland's horkelia

native
Perennial herb

2021 Andy Jones

2002 Charles E. Jones

Horkelia clevelandii var. clevelandii Cleveland's horkelia

native
Perennial herb

2019 David Greenberger

2021 Andy Jones

Horkelia congesta ssp. nemorosa Josephine horkelia

• rare native
Perennial herb

2015 John Doyen

2011 Doreen L. Smith

Horkelia congesta var. nemorosa Josephine horkelia

• rare native
Perennial herb

2015 John Doyen

2011 Doreen L. Smith

Horkelia cuneata Wedge leaf horkelia, Wedge leaved horkelia, Wedgeleaf horkelia

native
Perennial herb

2020 Ron Vanderhoff

2019 Ron Vanderhoff

2020 Ron Vanderhoff

Horkelia cuneata var. cuneata Wedge leaved horkelia

native
Perennial herb

2020 David Greenberger

2019 David Greenberger

2021 Mary Conway

Horkelia cuneata var. puberula Mesa horkelia

• rare native
Perennial herb

2023 Ron Vanderhoff

2008 Tony Morosco

2013 Ron Vanderhoff

Horkelia cuneata var. sericea Kellogg's horkelia

• rare native
Perennial herb

2021 Cara Wilcox

2022 Irene Rosen

2021 Cara Wilcox

Horkelia daucifolia Carrot leafed horkelia, Carrotleaf horkelia

native
Perennial herb

2016 Julie Kierstead Nelson

2019 Julie Kierstead Nelson

2011 Steve Matson

Horkelia daucifolia var. caruifolia Carrot leafed horkelia, Carrotleaf horkelia

native
Perennial herb

2016 Julie Kierstead Nelson

2019 Julie Kierstead Nelson

2011 Steve Matson

Horkelia daucifolia var. daucifolia Carrot leafed horkelia

native
Perennial herb

2016 Julie Kierstead Nelson

Horkelia daucifolia var. indicta Jepson's horkelia

• rare native
Perennial herb

2011 Steve Matson

Horkelia fusca Dusky horkelia, Pinewoods horkelia, Tawny horkelia

native
Perennial herb

2018 Gerald Carr

2019 Matt Berger

Horkelia fusca var. brownii Tawny horkelia

native
Perennial herb

2019 Belinda Lo

Horkelia fusca var. parviflora Tawny horkelia

native
Perennial herb

2019 Matt Berger

2006 Steve Matson

2019 Matt Berger

Horkelia fusca var. tenella Tawny horkelia

native
Perennial herb

2019 Susan McDougall

Horkelia hendersonii Henderson's horkelia

• rare native
Perennial herb

2019 Amy Patten

2011 Norman Jensen

2022 Julie A. Kierstead

Horkelia hispidula White mountain horkelia, White mtns. horkelia

• rare native
Perennial herb

2012 Steve Matson

Horkelia howellii Howell's horkelia

native
Perennial herb

2008 Keir Morse

Horkelia marinensis Point reyes horkelia

• rare native
Perennial herb

2021 Vernon Smith

2013 James Gonsman

2023 Ryan O'Dell

Horkelia parryi Parry horkelia, Parry's horkelia

• rare native
Perennial herb

2019 Matt Berger

Horkelia rydbergii Rydberg's horkelia

native
Perennial herb

2019 Diane Etchison

2018 Diane Etchison

Horkelia sericata Howell's horkelia, Silky horkelia

• rare native
Perennial herb

2015 John Doyen

2014 John Doyen

2010 Sean B. Smith

Horkelia tenuiloba Santa rosa horkelia, Thin lobed horkelia

• rare native
Perennial herb

2019 Eliezer Margolis

2019 Cynthia Powell

2018 Hunter Breck

Horkelia tridentata Three toothed horkelia, Threetooth horkelia

native
Perennial herb

2022 BOB CASE

2021 Dee Shea Himes

2009 Julie A. Kierstead

Horkelia tridentata var. flavescens Three toothed horkelia

native
Perennial herb

2021 David popp

2021 Steve Laymon

2015 John Doyen

Horkelia tridentata ssp. tridentata Three toothed horkelia

native
Perennial herb

2009 Barry Breckling

2012 Steven Perry

2015 Neal Kramer

Horkelia tridentata var. tridentata Three toothed horkelia

native
Perennial herb

2009 Barry Breckling

2012 Steven Perry

2015 Neal Kramer

Horkelia truncata Ramona horkelia

• rare native
Perennial herb

2014 Ron Vanderhoff

2016 Ron Vanderhoff

2014 Ron Vanderhoff

Horkelia tularensis Kern plateau horkelia, Tulare cinquefoil

• rare native
Perennial herb

2022 Eric Koberle

Horkelia wilderae Barton flats horkelia

• rare native
Perennial herb

2022 James Maley

2019 Manzanita Dictionary

2022 James Maley

Horkelia yadonii Santa lucia horkelia

• rare native
Perennial herb (rhizomatous)

2022 Ryan O'Dell

2023 Ryan O'Dell

Horkeliella congdonis Congdon's false horkelia, Congdon's little horkelia

native
Perennial herb

2005 Steve Matson

Horkeliella purpurascens Purple false horkelia, Purple horkelia

native
Perennial herb

2020 Matt Berger

2022 Mike Russler

Hornungia procumbens Prostrate hutchinsia

non-native

2010 Steve Matson

Horsfordia alata Pink velvet mallow, Pink velvetmallow

• rare native
Shrub

2017 Fred Melgert / Carla Hoegen

2004 Debra Valov

Horsfordia newberryi Newberry's velvet mallow, Newberry's velvetmallow

• rare native
Perennial herb

2022 Alexander S. Kunz

2020 Matt Berger

2020 David Greenberger

Hosackia crassifolia Broad leaved lotus

native
Perennial herb

2015 Steve Matson

Hosackia crassifolia var. crassifoia Broad leaved lotus

native
Perennial herb

2015 Steve Matson

Hosackia crassifolia var. crassifolia Broad leaved lotus

native
Perennial herb

2015 Steve Matson

Lotus crassifolius var. crassifolius Broad leaved lotus

native
Perennial herb

2015 Steve Matson

Hosackia crassifolia var. otayensis Otay mountain hosackia

• rare native
Perennial herb

2022 Becky Escalante

Lotus crassifolius var. otayensis Otay mountain hosackia

• rare native
Perennial herb

2022 Becky Escalante

Hosackia gracilis Harlequin lotus

• rare native
Perennial herb

2019 David Greenberger

2023 Steve Conger

2023 Mary Ann Machi

Lotus formosissimus Harlequin lotus

• rare native
Perennial herb

2019 David Greenberger

2023 Steve Conger

2023 Mary Ann Machi

Hosackia incana Woolly lotus

native
Perennial herb

2011 Steven Perry

Hosackia oblongifolia Narrow leaved lotus

native
Perennial herb

2006 Steve Matson

2019 R.A. Chasey

2013 BOB CASE

Lotus oblongifolius Narrow leaved lotus

native
Perennial herb

2006 Steve Matson

2019 R.A. Chasey

2013 BOB CASE

Hosackia oblongifolia var. cuprea Copper-flowered bird's-foot trefoil

• rare native
Perennial herb

2022 Mike Russler

Hosackia oblongifolia var. oblongifolia Narrow leaved lotus

native
Perennial herb

2014 James Gonsman

2017 Ron Vanderhoff

2006 Steve Matson

Lotus oblongifolius var. oblongifolius Narrow leaved lotus

native
Perennial herb

2014 James Gonsman

2017 Ron Vanderhoff

2006 Steve Matson

Hosackia pinnata Pinnate lotus

native
Perennial herb

2015 Steve Matson

Hosackia rosea Rose flowered lotus

native
Perennial herb

2019 Heather Morrison

2022 Zoya Akulova-Barlow

2018 Claire Brown

Hosackia stipularis Stipulate lotus

native
Perennial herb

2008 Steve Matson

Lotus stipularis Stipulate lotus

native
Perennial herb

2008 Steve Matson

Hosackia stipularis var. ottleyi Ottley's stipulate lotus

native
Perennial herb

2008 Steve Matson

Lotus stipularis var. ottleyi Ottley's stipulate lotus

native
Perennial herb

2008 Steve Matson

Hosackia stipularis var. stipularis Stipulate lotus

native
Perennial herb

2022 Mary Conway

2022 R.A. Chasey

Hosackia yollabolliensis Yolla bolly mtns. bird's-foot trefoil

• rare native
Perennial herb

2013 Shasta-Trinity National Forest

Howellanthus dalesianus Scott mountain phacelia

• rare native
Perennial herb

2011 Steve Matson

Howellia aquatilis Water howellia

• rare native
Annual herb (aquatic)

2011 Gerald Carr

Hulsea algida High mountain hulsea, Pacific hulsea

native
Perennial herb

2022 Bob Steele

2016 Steve Matson

Hulsea brevifolia Short leaved hulsea, Shortleaf alpinegold

• rare native
Perennial herb

2022 Mike Russler

2019 R.A. Chasey

2022 Jacob Smith

Hulsea californica San diego alpinegold, San diego sunflower

• rare native
Perennial herb

2019 Matt Berger

Hulsea heterochroma Red rayed hulsea, Redray alpinegold

native
Perennial herb

2015 Steve Matson

Hulsea mexicana Mexican alpinegold, Mexican hulsea

• rare native
Annual, Perennial herb

2018 Aaron Schusteff

Hulsea nana Dwarf alpinegold, Dwarf hulsea

• rare native
Perennial herb

2011 Steve Matson

Hulsea vestita Pumice alpinegold, Pumice hulsea

native
Perennial herb

2008 Steve Matson

Hulsea vestita ssp. callicarpha Beautiful hulsea, Pumice alpinegold

• rare native
Perennial herb

2019 Matt Berger

Hulsea vestita ssp. gabrielensis Pumice alpinegold, San gabriel mtns. sunflower

• rare native
Perennial herb

2019 Matt Berger

2020 Matt Berger

2013 Anuja Parikh and Nathan Gale

Hulsea vestita ssp. inyoensis Inyo hulsea, Pumice alpinegold

• rare native
Perennial herb

2022 Dana York

2023 Bob Steele

Hulsea vestita ssp. parryi Parry's alpinegold, Parry's hulsea, Parry's sunflower

• rare native
Perennial herb

2019 Matt Berger

Hulsea vestita ssp. pygmaea Pygmy alpinegold, Pygmy hulsea

• rare native
Perennial herb

2010 John Game

2008 Thomas Stoughton

Hulsea vestita ssp. vestita Pumice alpinegold, Pumice hulsea

native
Perennial herb

2020 Steve Matson

Humulus lupulus Common hop, Hops

non-native
Perennial herb

2010 Barry Breckling

2005 Louis-M. Landry

2007 Louis-M. Landry

Hunnemannia fumariifolia Mexican tulip poppy

non-native
Perennial herb

2013 Richard Spellenberg

Hyacinthus orientalis Garden hyacinth

non-native
Perennial herb

2022 Jacob Martin

2007 Luigi Rignanese

Hydrangea arborescens Wild hydrangea

non-native
Shrub

Hydrilla verticillata Hydrilla, Waterthyme

• invasive non-native
Perennial herb

2001 CDFA

Hydrocharis morsus-ranae Common frogbit

non-native
Perennial herb

2006 Louis-M. Landry

Hydrocotyle ranunculoides Floating marsh pennywort, Floating marshpennywort, Marsh pennywort

native
Perennial herb

2019 R.A. Chasey

2023 R.A. Chasey

2017 Michael Mitchell

Hydrocotyle sibthorpioides Lawn marsh pennywort, Lawn marshpennywort

non-native
Perennial herb

2017 Ron Vanderhoff

2017 James Bailey

Hydrocotyle umbellata Manyflower marshpennywort, Marsh pennywort

native
Perennial herb

2016 Ron Vanderhoff

2017 James Bailey

2021 Ron Vanderhoff

Hydrocotyle verticillata Whorled marsh pennywort, Whorled marshpennywort

native
Perennial herb

2013 Ron Vanderhoff

2020 Robert Byrnes

2019 David Greenberger

Hydrocotyle verticillata var. triradiata Whorled marsh pennywort, Whorled marshpennywort

native
Perennial herb

Hydrocotyle verticillata var. triradiata

2013 Ron Vanderhoff

2020 Robert Byrnes

2019 David Greenberger

Hydrophyllum alpestre Alpine breeches

native
Perennial herb

2022 Charles Russell

2020 Bob Sweatt

2023 Paul Watts

Hydrophyllum capitatum var. alpinum Alpine breeches

native
Perennial herb

2022 Charles Russell

2020 Bob Sweatt

2023 Paul Watts

Hydrophyllum canadense Bluntleaf waterleaf

non-native
Perennial herb

Hydrophyllum capitatum Ballhead waterleaf

native
Perennial herb

2020 Susan McDougall

2020 Aaron Thies

2021 Cheryl Remillard

Hydrophyllum capitatum var. capitatum Ballhead waterleaf

native
Perennial herb

2020 Susan McDougall

2020 Aaron Thies

2021 Cheryl Remillard

Hydrophyllum fendleri Fendler's waterleaf

native
Perennial herb

2022 Dana York

2019 John Doyen

2013 Dana York

Hydrophyllum fendleri var. albifrons White fendler's waterleaf, White waterleaf

native
Perennial herb

2022 Dana York

2022 Alaine Arslan

2013 Dana York

Hydrophyllum occidentale California waterleaf, Western waterleaf

native
Perennial herb

2020 Susan McDougall

2020 Steve Conger

Hydrophyllum tenuipes Pacific waterleaf

native
Perennial herb

2021 Dana York

2011 Jean Pawek

Hygrophila polysperma Indian swampweed

non-native
Tree

Hymenopappus filifolius Columbia cutleaf, Fineleaf hymenopappus

native
Perennial herb

2011 Steve Matson

Hymenopappus filifolius var. polycephalus Columbia cutleaf, Fineleaf hymenopappus

native
Perennial herb

Hymenopappus filifolius var. polycephalus

2011 Steve Matson

Hymenopappus filifolius var. eriopodus Fineleaf hymenopappus, Hairy podded columbia cutleaf

• rare native
Perennial herb

2008 Jason E. Willand

2020 Matt C. Berger

2006 Trent M. Draper

Hymenopappus filifolius var. lugens Columbia cutleaf, Idaho hymenopappus

native
Perennial herb

2019 Matt Berger

2018 Diane Etchison

2018 Ron Vanderhoff

Hymenopappus filifolius var. megacephalus Fineleaf hymenopappus, Large headed columbia cutleaf

native
Perennial herb

Hymenopappus filifolius var. megacephalus

2004 James M. Andre

2009 Barry Breckling

Hymenopappus filifolius var. nanus Dwarf columbia cutleaf, Fineleaf hymenopappus

• rare native
Perennial herb

2011 Steve Matson

2010 Steve Matson

2011 Steve Matson

Hymenosporum flavum

non-native
Tree, Shrub

Amauriopsis dissecta Ragged leaf bahia

native
Perennial herb

2023 R.A. Chasey

2020 Eric Koberle

2023 R.A. Chasey

Bahia dissecta Ragged leaf bahia

native
Perennial herb

2023 R.A. Chasey

2020 Eric Koberle

2023 R.A. Chasey

Hymenothrix loomisii Loomis' thimblehead

non-native
Annual, Perennial herb

2013 Richard Spellenberg

Hymenothrix wrightii Wright's thimblehead

• rare native
Perennial herb

2014 Keir Morse

Hymenoxys cooperi Cooper goldflower, Cooper's goldflower, Cooper's rubberweed

native
Perennial herb

2012 Steve Matson

Dugaldia hoopesii Owl's claws

native
Perennial herb

2003 Steve Matson

2021 Steve Matson

2003 Steve Matson

Hymenoxys hoopesii Owl's claws

native
Perennial herb

2003 Steve Matson

2021 Steve Matson

2003 Steve Matson

Hymenoxys lemmonii Lemmon's goldflower, Lemmon's rubberweed

• rare native
Perennial herb

2006 Steve Matson

2016 John Doyen

2006 Steve Matson

Hymenoxys odorata Bitter rubberweed, Fragrant bitter weed

• rare native
Annual herb

2015 Richard Spellenberg

Hyoscyamus niger Black henbane

non-native
Annual herb

Hyparrhenia hirta Thatching grass

• invasive non-native
Perennial grass

2008 Steve Matson

Hypericum anagalloides Creeping st. john's wort, Tinker's penny

native
Annual, Perennial herb

2019 Bob Sweatt

2020 Joaquin Hale

2021 Mike Russler

Hypericum androsaemum Sweet amber

• invasive non-native
Shrub

2018 Zoya Akulova

2023 Jennifer Mo

Hypericum calycinum Aaron's beard

non-native
Shrub

2019 Zachary Snider

2018 Brian Charles

2021 Lenihan Mazur

Hypericum canariense Canary island st. johnswort

• invasive non-native
Shrub

2019 Patrick Furtado

2015 Leah Bedoian

Hypericum concinnum Gold wire, Goldwire

native
Perennial herb

2018 Cynthia Griffin

2018 Hayley Ross

Hypericum formosum St john's wort

native
Perennial herb

2011 Steven Thorsted

2005 Jerry Murray

Hypericum grandifolium malfurada

• invasive non-native
Shrub

2019 Jill Adams

2018 Steven Cognac

Hypericum mutilum ssp. mutilum Dwarf st john's wort

non-native
Perennial herb

2015 Judy and Barry Breckling

2020 R.A. Chasey

2021 David popp

Hypericum perforatum Common st. johnswort, Klamath weed, Klamathweed

• invasive non-native
Perennial herb

2020 Bob Sweatt

2018 stephen rosenthal

2020 Bob Sweatt

Hypericum formosum ssp. scouleri Scouler's St John's wort

native
Perennial herb

2021 Julie A. Kierstead

2022 Steve Matson

2019 Julie Kierstead Nelson

Hypericum formosum var. scouleri Scouler's St John's wort

native
Perennial herb

2021 Julie A. Kierstead

2022 Steve Matson

2019 Julie Kierstead Nelson

Hypericum scouleri Scouler's St John's wort

native
Perennial herb

2021 Julie A. Kierstead

2022 Steve Matson

2019 Julie Kierstead Nelson

Hypericum scouleri ssp. nortonia Scouler's St John's wort

native
Perennial herb

2021 Julie A. Kierstead

2022 Steve Matson

2019 Julie Kierstead Nelson

Hypericum scouleri var. scouleri Scouler's St John's wort

native
Perennial herb

2021 Julie A. Kierstead

2022 Steve Matson

2019 Julie Kierstead Nelson

Hypochaeris glabra Smooth cat's ear

• invasive non-native
Annual herb

2020 Ron Vanderhoff

2017 Gary McDonald

2019 Ron Vanderhoff

Hypochaeris radicata Hairy cats ear, Hairy catsear, Rough cat's ear

• invasive non-native
Perennial herb

2024 Ron Vanderhoff

2017 Gary McDonald

2016 Michael Mitchell

Iberis sempervirens Evergreen candytuft

non-native
Annual herb

Idahoa scapigera Oldstem idahoa

native
Annual herb

2021 David popp

2010 Norman Jensen

2006 Keir Morse

Ilex aquifolium English holly, Holly

• invasive non-native
Tree, Shrub

AQUIFOLIACEAE

2021 Cynthia Powell

2021 Donald Burk

2019 Tatiana Manzanillo

Ilex cornuta Chinese holly

non-native
Tree, Shrub

AQUIFOLIACEAE

Ilex opaca American holly

non-native
Tree, Shrub

AQUIFOLIACEAE

Iliamna bakeri Baker's globe mallow, Baker's wild hollyhock

• rare native
Perennial herb

2020 Steve Laymon

2019 Matt Berger

2018 Matt Berger

Iliamna latibracteata California globe mallow, California wild hollyhock

• rare native
Perennial herb

2019 Keir Morse

2023 Keir Morse

2012 Julie A. Kierstead

Iliamna rivularis Streambank wild hollyhock

native
Perennial herb

2020 Susan McDougall

2012 Gary A. Monroe

Iliamna rivularis var. rivularis Streambank wild hollyhock

native
Perennial herb

2020 Susan McDougall

2012 Gary A. Monroe

Impatiens balfourii Balfour's touch me not

non-native
Perennial herb

2019 Randy Huey

2006 Peter Zika

Impatiens capensis Jewelweed

non-native
Perennial herb

2005 Louis-M. Landry

Impatiens glandulifera Ornamental jewelweed

non-native
Perennial herb

2017 Asa B Spade

Impatiens noli-tangere Western touch me not

non-native
Annual herb

2006 Peter Zika

Impatiens walleriana Buzzy lizzy

non-native
Perennial herb

Imperata brevifolia California satintail

• rare native
Perennial grass

2008 Steve Matson

Inula helenium Elecampane inula

non-native
Perennial herb

2004 Nick Kurzenko

2008 Louis-M. Landry

Ionactis alpina Lava aster

native
Perennial herb

2015 Steve Matson

Ipheion uniflorum Spring star flower

non-native
Perennial herb

2012 Zoya Akulova

2013 Scott Batiuk

2015 Debra L. Cook

Ipomoea alba Tropical white morning-glory

non-native
Annual herb, Vine

Ipomoea cairica Mile a minute vine

non-native
Vine

2022 Ron Vanderhoff

2021 Ron Vanderhoff

Ipomoea hederacea Ivyleaf morning glory

non-native
Annual herb, Vine

2009 Barry Rice

Ipomoea indica Oceanblue morning glory

• invasive non-native
Perennial herb

2012 Neal Kramer

2006 Luigi Rignanese

2020 Ellen Stearns

Ipomoea nil Ivy morning glory, Whiteedge morning glory

non-native
Annual herb, Vine

2013 Debra L. Cook

Gerald and Buff Corsi2010 California Academy of Sciences

Ipomoea purpurea Common morning glory, Garden morningglory, Tall morning glory

non-native
Annual herb

2019 Ron Vanderhoff

2021 Ron Vanderhoff

Ipomoea batatas Little bell morning glory, Littlebell

non-native
Annual herb, Vine

2020 Debra Valov

Ipomopsis aggregata Scarlet gilia

native
Perennial herb

2013 Bon Case

2020 Cheryl Ballantyne

2019 Bob Sweatt

Ipomopsis aggregata var. aggregata Scarlet gilia

native
Perennial herb

2013 Bon Case

2020 Cheryl Ballantyne

2019 Bob Sweatt

Gilia aggregata Scarlet gilia

native
Perennial herb

2019 Anna Sereno

2020 R.A. Chasey

Ipomopsis aggregata ssp. aggregata Scarlet gilia

native
Perennial herb

2019 Anna Sereno

2020 R.A. Chasey

Ipomopsis aggregata ssp. formosissima Scarlet gilia

native
Perennial herb

2019 Anna Sereno

2020 R.A. Chasey

Ipomopsis aggregata ssp. bridgesii Bridge's gilia, Scarlet gilia

native
Perennial herb

2021 Mike Russler

2022 Mike Russler

Ipomopsis arizonica Arizona ipomopsis, Arizona scarlet gilia

native
Perennial herb

2011 Steve Matson

Ipomopsis congesta Ball headed gilia, Ballhead ipomopsis, Manyflowered gilia

native
Perennial herb

2020 Bob Sweatt

2005 Steve Matson

2018 Matt Berger

Gilia congesta Ball headed gilia, Ballhead ipomopsis

native
Perennial herb

2018 Matt Berger

Ipomopsis congesta ssp. congesta Ball headed gilia, Ballhead ipomopsis

native
Perennial herb

2018 Matt Berger

Ipomopsis congesta ssp. montana Ball headed ipomopsis, Ballhead ipomopsis, Many flowered gilia

native
Perennial herb

2005 Steve Matson

2023 Jamie Spielmann

Ipomopsis congesta ssp. palmifrons Ball headed ipomopsis, Ballhead ipomopsis, Many flowered gilia

native
Perennial herb

2005 Steve Matson

2023 Jamie Spielmann

Ipomopsis effusa Baja california ipomopsis

• rare native
Annual herb

2014 Aaron Schusteff

Ipomopsis polycladon Branching gilia, Manybranched ipomopsis

native
Annual herb

2011 Steve Matson

2007 Steve Matson

Ipomopsis tenuifolia Slender leaved ipomopsis, Slenderleaf skyrocket

• rare native
Perennial herb

2023 Matt Berger

2005 Christopher L. Christie

2023 Matt Berger

Ipomopsis tenuituba Narrow tube ipomopsis, Slendertube skyrocket

native
Shrub (stem succulent)

2020 Bob Sweatt

2010 Dee Warenycia

2022 Cynthia Powell

Iris bracteata Siskiyou iris

• rare native
Perennial herb (rhizomatous)

2023 Dana York

Iris chrysophylla Golden leaved iris, Yellowleaf iris

native
Perennial herb

2020 Marilyn Lemmon

2003 Dianne Fristrom

2014 John Doyen

Iris douglasiana Douglas iris, Douglas' iris

native
Perennial herb

2020 Susan McDougall

2019 Patrick Furtado

2022 Suzanne L. Weakley

Iris fernaldii Fernald's iris

native
Perennial herb

2021 Sue Graue

2020 Julia Gardner Harencar

2020 Susan McDougall

Iris foetidissima Stinking iris

non-native
Perennial herb

2021 Cynthia Powell

2022 John Doyen

2021 Jennifer Mo

Iris germanica German iris

non-native
Perennial herb

2017 MCOSD EDRR

2020 Robert Steers

2021 Ron Vanderhoff

Iris hartwegii Hartweg's iris, Rainbow iris

native
Perennial herb

2018 Janith Johnson

2019 Brett Dean

2021 David popp

Iris hartwegii ssp. australis Rainbow iris, Southern hartweg's iris

native
Perennial herb

2018 Janith Johnson

2019 Brett Dean

2018 Janith Johnson

Iris hartwegii ssp. hartwegii Hartweg's iris, Rainbow iris

native
Perennial herb

2016 Steve Matson

2019 David popp

Iris hartwegii ssp. pinetorum Hartweg's yellow pine iris, Rainbow iris

native
Perennial herb

2018 David popp

1995 Saint Mary's College of California

2012 Jason Matthias Mills

Iris innominata Del norte county iris

• rare native
Perennial herb (rhizomatous)

2010 Gerald Carr

Iris longipetala Central coast iris, Coast iris

• rare native
Perennial herb

2017 Steve Matson

Iris macrosiphon Bowltube iris, Ground iris, Long tubed iris

native
Perennial herb

2017 Steve Matson

2019 Steve Matson

Iris missouriensis Rocky mountain iris, Western blue flag

native
Perennial herb

Geoff Burleigh

2020 Mitchell Coleman

2019 Bob Sweatt

Iris munzii Munz's iris

• rare native
Perennial herb (rhizomatous)

2020 Joe Engelbrecht

2020 Amy Patten

2013 Debra L. Cook

Iris pseudacorus Horticultural iris, Paleyellow iris, Yellowflag iris

• invasive non-native
Perennial herb

2020 Ron Vanderhoff

2024 Ron Vanderhoff

2017 Nick Graver

Iris purdyi Purdy's iris

native
Perennial herb

2020 Mary Ann Machi

2020 R.A. Chasey

2020 Susan McDougall

Iris sibirica ssp. erirrhiza Siberian iris

non-native
Perennial herb (rhizomatous)

2006 Dr. Amadej Trnkoczy

Iris sibirica ssp. sibirica Siberian iris

non-native
Perennial herb (rhizomatous)

2006 Dr. Amadej Trnkoczy

Iris tenax Toughleaf iris

native
Perennial herb (rhizomatous)

2022 Jerry Murray

2011 Aaron Arthur

2006 Shawn DeCew

Iris tenax ssp. klamathensis Klamath iris, Orleans iris

• rare native
Perennial herb (rhizomatous)

2017 Dana York

2012 Dana York

Iris tenuissima Iris, Longtube iris, Slender iris

native
Perennial herb

2009 Julie A. Kierstead

2010 Julie A. Kierstead

2022 Jerry Murray

Iris tenuissima ssp. purdyiformis Longtube iris, Purdy's iris, Slender iris

native
Perennial herb

2023 Alaine Arslan

2015 Susan McDougall

Iris tenuissima ssp. tenuissima Longtube iris, Slender iris

native
Perennial herb

2016 Steve Matson

2023 Susan McDougall

Iris thompsonii Thompson's iris

• rare native
Perennial herb

2023 Dana York

2017 Steve Matson

Isatis tinctoria Dyer's woad, Dyers woad

• invasive non-native
Biennial, Perennial herb

2019 Dana York

2019 Julie Kierstead Nelson

2021 Steve Matson

Ismelia carinata Tricolor daisy

non-native
Annual herb

Isocoma acradenia Alkali goldenbush, Desert isocoma

native
Shrub

2021 Mike Russler

2021 Richard Spjut

Isocoma acradenia var. acradenia Alkali goldenbush

native
Shrub

2020 John Rawlings

2013 Richard Spellenberg

Isocoma acradenia var. bracteosa Bracted alkali goldenbush

native
Shrub

2021 Mike Russler

Isocoma acradenia var. eremophila Solitary leaved alkali goldenbush

native
Shrub

2020 David Greenberger

2018 Hailey Laskey

Isocoma arguta Carquinez goldenbush, Carquinez isocoma

• rare native
Shrub

2022 R.A. Chasey

2010 Doug Wirtz

2022 R.A. Chasey

Isocoma menziesii Menzies' goldenbush

native
Shrub

2014 Steve Matson

2006 Steve Matson

2014 Steve Matson

Isocoma menziesii var. vernonoides Menzies' goldenbush

native
Shrub

2014 Steve Matson

2006 Steve Matson

2014 Steve Matson

Isocoma menziesii var. decumbens Decumbent goldenbush, Menzies' goldenbush

• rare native
Shrub

2017 Neil Uelman

Isocoma menziesii var. diabolica Menzies' goldenbush, Satan's goldenbush

• rare native
Shrub

2021 Mike Russler

2019 R.A. Chasey

Isocoma menziesii var. menziesii Menzies' goldenbush

native
Shrub

2019 Ron Vanderhoff

2019 Diane Etchison

Isocoma menziesii var. sedoides Menzies' goldenbush, Prostrate coastal goldenbush

native
Shrub

2014 Steve Matson

2021 Ron Vanderhoff

Isocoma menziesii var. vernonioides Coastal goldenbush, Green leaved dune goldenbush, Menzies' goldenbush

native
Shrub

2014 Steve Matson

Isoetes bolanderi Bolander's quillwort

native

2006 Steve Matson

2007 Steve Matson

2006 Steve Matson

Isoetes howellii Howell's quillwort, Quillwort

native

2022 Ken-ichi Ueda

2023 R.A. Chasey

Isoetes nuttallii Nuttall's quillwort

native

2019 David Greenberger

2019 Matt Berger

Isoetes lacustris Western quillwort

native

2015 Steve Matson

Isoetes occidentalis Western quillwort

native

2015 Steve Matson

Isoetes orcuttii Orcutt's quillwort

native

2017 Art Clark

2004 Carol W. Witham

2012 Gary A. Monroe

Isolepis carinata Keeled bulrush

native
Annual grasslike herb

2016 Toni Corelli

2021 John Rawlings

2023 R.A. Chasey

Isolepis cernua Low bulrush

native
Annual grasslike herb

2021 R.A. Chasey

2023 R.A. Chasey

2018 Ron Vanderhoff

Isolepis levynsiana

non-native
Annual grasslike herb

2003 William Maslach

2019 Peter Warner

Isolepis setacea Bristleleaf bulrush

non-native
Perennial grasslike herb

2004 Steve Matson

Iva axillaris Povertyweed

native
Perennial herb

2019 David Greenberger

2023 R.A. Chasey

2020 Sara Timby

Iva axillaris ssp. robustior Povertyweed

native
Perennial herb

2019 David Greenberger

2023 R.A. Chasey

2020 Sara Timby

Iva hayesiana San diego marsh elder, San diego povertyweed

• rare native
Perennial herb

2015 John Rusk

2012 Ron Vanderhoff

2022 Ron Vanderhoff

Ivesia aperta var. aperta Sierra valley ivesia, Sierra valley mousetail

• rare native
Perennial herb

2008 Steve Matson

2019 David Greenberger

Ivesia aperta var. canina Dog valley ivesia, Sierra valley mousetail

• rare native
Perennial herb

2005 Steve Matson

Ivesia argyrocoma Silver haired ivesia, Silverhair mousetail

native
Perennial herb

2006 Steve Matson

2019 Matt Berger

Ivesia argyrocoma var. moranii Silver haired ivesia, Silverhair mousetail

native
Perennial herb

2006 Steve Matson

2019 Matt Berger

Ivesia argyrocoma var. argyrocoma Silver-haired ivesia

• rare native
Perennial herb

2006 Steve Matson

2019 Matt Berger

Ivesia arizonica var. arizonica Arizona whitefeather, Yellow ivesia

• rare native
Perennial herb

2021 Matt C. Berger

Ivesia baileyi Bailey's ivesia

native
Perennial herb

2016 Gerald Carr

Ivesia baileyi var. setosa Bailey's ivesia

native
Perennial herb

2016 Gerald Carr

Ivesia baileyi var. baileyi Bailey's ivesia

• rare native
Perennial herb

1990 Dean Wm. Taylor

Ivesia baileyi var. beneolens Bailey's ivesia, Owyhee ivesia

• rare native
Perennial herb

2016 Gerald Carr

Ivesia callida Tahquitz ivesia, Tahquitz mousetail

• rare native
Perennial herb

2005 US Forest Service

2008 Jordan Zylstra

Ivesia campestris Field ivesia, Field mousetail

• rare native
Perennial herb

2018 Steve Matson

Ivesia gordonii Alpine ivesia, Gordon's ivesia

native
Perennial herb

2014 Steve Matson

2019 R.A. Chasey

2014 Steve Matson

Ivesia gordonii var. alpicola Alpine ivesia

native
Perennial herb

2005 Steve Matson

2019 R.A. Chasey

Ivesia gordonii var. ursinorum Alpine ivesia

native
Perennial herb

2019 R.A. Chasey

2014 Steve Matson

Ivesia jaegeri Jaeger's ivesia, Jaeger's mousetail

• rare native
Perennial herb

2020 Matt Berger

Ivesia kingii King's mousetail

native
Perennial herb

2008 Steve Matson

Ivesia kingii var. eremica King's mousetail

native
Perennial herb

2008 Steve Matson

Ivesia kingii var. kingii Alkali ivesia

• rare native
Perennial herb

2008 Steve Matson

2005 Steve Matson

Ivesia longibracteata Castle crags ivesia, Longbract mousetail

• rare native
Perennial herb

2018 Matt Berger

2011 Shannon Henke

Ivesia lycopodioides Clubmoss ivesia, Clubmoss mousetail

native
Perennial herb

2022 Bob Sweatt

2020 Bob Sweatt

Ivesia lycopodioides var. lycopodioides Clubmoss ivesia

native
Perennial herb

2005 Steve Matson

Ivesia lycopodioides ssp. megalopetala Clubmoss ivesia

native
Perennial herb

2005 Steve Matson

2019 R.A. Chasey

Ivesia lycopodioides var. megalopetala Clubmoss ivesia

native
Perennial herb

2005 Steve Matson

2019 R.A. Chasey

Ivesia lycopodioides var. scandularis Clubmoss ivesia

native
Perennial herb

2012 Steve Matson

Ivesia muirii Granite mousetail

native
Perennial herb

2014 Steve Matson

Ivesia paniculata Ash creek ivesia, Ash creek mousetail

• rare native
Perennial herb

2007 F. Gauna

Ivesia pickeringii Pickering's ivesia, Silky mousetail

• rare native
Perennial herb

2021 Julie A. Kierstead

Ivesia pygmaea Dwarf ivesia, Dwarf mousetail

native
Perennial herb

2018 Steve Matson

Ivesia santolinoides Mouse tail ivesia, Sierra ivesia, Sierra mousetail

native
Perennial herb

2020 Bob Sweatt

2006 Steve Matson

2023 Mike Russler

Ivesia saxosa Rock five finger, Rock ivesia, Rock mousetail

native
Perennial herb

2009 Steve Matson

2020 R.A. Chasey

2009 Steve Matson

Ivesia sericoleuca Plumas ivesia, Plumas mousetail

• rare native
Perennial herb

2021 Bob Sweatt

2003 Steve Matson

Ivesia shockleyi var. shockleyi Shockley's ivesia, Sky mousetail

native
Perennial herb

2009 Steve Matson

Ivesia unguiculata Yosemite ivesia, Yosemite mousetail

• rare native
Perennial herb

2021 Mike Russler

Ivesia webberi Webber's ivesia, Wire mousetail

• rare native
Perennial herb

2007 Steve Matson

Ixia maculata Spotted african cornlily

non-native
Perennial herb

2019 Jenny Gossett

Albert P. Bekker1999 California Academy of Sciences

Jacaranda mimosifolia Black poui

non-native
Tree

2016 Ron Vanderhoff

2019 Ron Vanderhoff

Jamesia americana Fivepetal cliffbush

native
Shrub

2005 Steve Matson

2014 Steve Matson

2005 Steve Matson

Jamesia americana var. rosea Fivepetal cliffbush, Rosy petalled cliffbush

• rare native
Shrub

2014 Steve Matson

2005 Steve Matson

Jasminum mesnyi Japanese jasmine

non-native
Vine, Shrub

Jatropha curcas Barbados nut

non-native
Perennial herb

Jatropha integerrima Peregrina

non-native
Perennial herb

Jaumea carnosa Fleshy jaumea, Marsh jaumea

native
Perennial herb

2020 Ron Vanderhoff

2018 Angelique Herman

2020 R.A. Chasey

Jensia rammii Ramm's madia

native
Annual herb

2008 Steve Matson

Jensia yosemitana Yosemite tarplant

• rare native
Annual herb

2019 Matt Berger

Madia yosemitana Yosemite tarplant

• rare native
Annual herb

2019 Matt Berger

Jepsonia heterandra Foothill jepsonia

• rare native
Perennial herb

2012 Lynn Robertson

2024 Ryan Donnelly

2014 Belinda Lo

Jepsonia malvifolia Island jepsonia

• rare native
Perennial herb

2022 Joanne Schwartz

2006 Doug Fischer

1993 Dean Wm. Taylor

Jepsonia parryi Parry's jepsonia

native
Perennial herb

2009 Ron Vanderhoff

2012 Cynthia Keiser

2011 Keir Morse

Johanneshowellia puberula Red creek buckwheat

• rare native
Annual herb

2001 Dana York

Cryptantha angustifolia Narrow-leaved johnstonella

native
Annual herb

2005 Steve Matson

2009 Steve Matson

Cryptantha holoptera winged cryptantha

• rare native
Annual herb

2020 Matt Berger

Cryptantha inaequata Panamint johnstonella

native
Annual herb

2010 Steve Matson

Cryptantha racemosa Shrubby johnstonella

native
Annual herb

2015 Steve Matson

2009 Steve Matson

2016 Steve Matson

Juglans californica Southern black walnut, Southern california walnut, Southern california black walnut

• rare native
Tree

2017 Aaron Echols

2022 Aaron Echols

2014 Garth Wadsworth

Juglans californica var. hindsi Southern black walnut, Southern california walnut, Southern california black walnut

• rare native
Tree

2017 Aaron Echols

2022 Aaron Echols

2014 Garth Wadsworth

Juglans cinerea Butternut

non-native
Tree

Juglans hindsii Northern california black walnut

• rare native
Tree

2016 Steve Matson

2018 Ron Vanderhoff

Juglans microcarpa Little walnut

non-native
Tree

Juglans nigra Black walnut

non-native
Tree

2019 Dean Taylor

2018 Sheri Hagwood

2019 Dean Taylor

Juglans regia English walnut

non-native
Tree

2018 Ron Vanderhoff

2019 Janice Kuch

2014 Richard Chasey

Juncus acuminatus Sharp fruited rush, Taper tip rush, Tapertip rush

native
Perennial grasslike herb

2021 Peter Warner

Juncus acutus Spiny rush

native
Perennial grasslike herb (rhizomatous)

2020 Ron Vanderhoff

2021 Ron Vanderhoff

2019 Susan McDougall

Juncus acutus ssp. leopoldii Leopold's rush, Southwestern spiny rush, Wire grass

• rare native
Perennial grasslike herb (rhizomatous)

2018 Ron Vanderhoff

2019 Susan McDougall

2021 Ron Vanderhoff

Juncus articulatus Jointed rush, Jointleaf rush

native
Perennial grasslike herb

2022 joaquin hale

Juncus articulatus ssp. articulatus Jointed rush

native
Perennial grasslike herb

2022 joaquin hale

Juncus balticus Baltic rush, Wire rush

native
Perennial grasslike herb

2015 Steve Matson

2019 Bonnie Nickel

Juncus balticus ssp. ater Baltic rush

native
Perennial grasslike herb

2015 Steve Matson

Juncus bolanderi Bolander's rush

native
Perennial grasslike herb

2019 Ken Hickman

2019 John Rawlings

Juncus breweri Brewer's rush

native
Perennial grasslike herb

2016 Steve Matson

Juncus bryoides Moss rush

native
Annual grasslike herb

2009 Thomas Stoughton

2009 Neal Kramer

2009 Thomas Stoughton

Juncus bufonius Common toad rush, Toad rush

native
Annual grasslike herb

2022 Steve Matson

Juncus bufonius var. bufonius Toad rush

native
Annual grasslike herb

2021 John Rawlings

2023 R.A. Chasey

2019 Ron Vanderhoff

Juncus bufonius var. congestus Clustered toad rush

native
Annual grasslike herb

2004 Steve Matson

2023 Adonis Tate

2023 Mary Merriman

Juncus bufonius var. occidentalis Round fruited toad rush, Western toad rush

native
Perennial grasslike herb

2004 Steve Matson

2017 Keir Morse

2010 Toni Corelli

Juncus capillaris Hairystem dwarf rush, Slender stemmed dwarf rush

native
Annual grasslike herb

2023 R.A. Chasey

2003 Steve Matson

Juncus capitatus Leafy bracted dwarf rush, Leafybract dwarf rush

non-native
Annual grasslike herb

2022 Emily R. Allen

2018 R.A. Chasey

2016 Toni Corelli

Juncus chlorocephalus Green headed rush, Greenhead rush

native
Perennial grasslike herb

2013 BOB CASE

2019 Matt Berger

2009 Steve Matson

Juncus confusus Colorado rush

native
Perennial grasslike herb

2015 Steve Matson

Juncus cooperi Cooper's rush

• rare native
Perennial grasslike herb

2019 Lynn Sweet, Scott Heacox

2020 Matt Berger

Juncus covillei Coville's rush

native
Perennial grasslike herb

2013 Dana York

2013 Jake Ruygt

Juncus diffusissimus Slim podded rush, Slimpod rush

non-native
Perennial grasslike herb

2004 Steve Matson

Juncus digitatus Finger rush

• rare native
Perennial grasslike herb

2008 Carol W. Witham

2011 Christopher Bronny

Juncus drummondii Drummond's rush

native
Perennial grasslike herb

2007 Steve Matson

2023 Mike Russler

Juncus dubius Dubius rush, Mariposa rush

native
Perennial grasslike herb

2015 Keir Morse

Juncus dudleyi Dudley's rush

• rare native
Perennial grasslike herb

2017 Dean Wm. Taylor

Juncus duranii Duran's rush

• rare native
Perennial grasslike herb (rhizomatous)

2017 Keir Morse

Juncus effusus Bog rush, Common bog rush, Common rush

native
Perennial grasslike herb

2019 Patrick Furtado

2021 R.A. Chasey

Juncus effusus var. compactus Bog rush, Common bog rush, Common rush

native
Perennial grasslike herb

2019 Patrick Furtado

2021 R.A. Chasey

Juncus effusus ssp. pacificus Pacific rush

native
Perennial grasslike herb

2009 Toni Corelli

2021 R.A. Chasey

2021 John Rawlings

Juncus ensifolius Sword leaved rush, Swordleaf rush, Three stamened rush

native
Perennial grasslike herb

2016 Phil Johnson

2018 David popp

2009 Julie A. Kierstead

Juncus ensifolius var. ensifolius Sword leaved rush, Swordleaf rush, Three stamened rush

native
Perennial grasslike herb

2016 Phil Johnson

2018 David popp

2009 Julie A. Kierstead

Juncus exiguus Klamath or weak rush

native
Perennial grasslike herb

2004 Steve Matson

2012 Virginia Moran

Juncus falcatus Falcate rush

native
Perennial grasslike herb

2019 Joslyn Curtis

2009 Neal Kramer

Juncus falcatus ssp. falcatus Falcate rush

native
Perennial grasslike herb

2013 Vernon Smith

2004 Steve Matson

2009 Neal Kramer

Juncus gerardi ssp. gerardi Mud rush

native
Perennial grasslike herb

2003 Steve Matson

Juncus hemiendytus var. abjectus Center basin rush, Herman's dwarf rush

• rare native
Annual grasslike herb

2008 Steve Matson

Juncus hemiendytus var. hemiendytus Herman's dwarf rush, Vernal pool rush

native
Annual grasslike herb

2020 Belinda Lo

2003 Steve Matson

Juncus hesperius Coast or bog rush

native
Perennial grasslike herb

2004 Steve Matson

2019 Patrick Furtado

2021 John Rawlings

Juncus howellii Howell's rush

native
Perennial grasslike herb

2004 Steve Matson

2023 Julie A. Kierstead

Juncus interior Inland rush

• rare native
Perennial grasslike herb

2011 James M. Andre

Juncus kelloggii Kellogg's dwarf rush

native
Annual grasslike herb

2011 Ryan Batten

2013 Robert Steers/NPS

Juncus laccatus Shiny rush

native
Perennial grasslike herb

2007 Steve Matson

Juncus leiospermus var. ahartii Ahart's dwarf rush

• rare native
Annual grasslike herb

2023 Justin Chappelle

2004 Carol W. Witham

Juncus leiospermus var. leiospermus Red bluff dwarf rush

• rare native
Annual grasslike herb

2008 John Dittes

2023 Donald Burk

Juncus lescurii Dune rush

native
Perennial grasslike herb

2008 Toni Corelli

Juncus longistylis Long styled rush, Longstyle rush

native
Perennial grasslike herb

2004 Steve Matson

Juncus luciensis Santa lucia dwarf rush, Santa lucia rush

• rare native
Annual grasslike herb

2023 Matt Berger

Juncus macrandrus Long anthered rush, Longanther rush

native
Perennial grasslike herb

2021 Richard Spjut

Juncus macrophyllus Long leaved rush, Longleaf rush, Rush

native
Perennial grasslike herb

2019 Ron Vanderhoff

2023 R.A. Chasey

Juncus marginatus Grassleaf rush

native
Perennial grasslike herb (rhizomatous)

2003 Steve Matson

Juncus mertensianus Merten's rush, Mertens' rush

native
Perennial grasslike herb

2016 Steve Matson

2007 Steve Matson

Juncus mexicanus Mexican rush

native
Perennial grasslike herb

2004 Steve Matson

2020 Mary Wloch

2019 Diane Etchison

Juncus nevadensis Sierra rush

native
Perennial grasslike herb

2021 Mike Russler

Juncus nevadensis ssp. nevadensis Sierra rush

native
Perennial grasslike herb

2021 Mike Russler

Juncus nodosus Knotted rush

• rare native
Perennial grasslike herb (rhizomatous)

2005 James M. Andre

2010 Louis-M. Landry

Juncus occidentalis Rush, Slender juncus, Western rush

native
Perennial grasslike herb

2021 Toni Corelli

2021 Dick Rawson

Juncus orthophyllus Straight leaved rush, Straightleaf rush

native
Perennial grasslike herb

2019 David Greenberger

2016 Steve Matson

Juncus oxymeris Pointed rush

native
Perennial grasslike herb

2016 Steve Matson

Juncus parryi Parry's rush

native
Perennial grasslike herb

2019 Steve Matson

Juncus patens Common rush, Spreading rush

native
Perennial grasslike herb

2022 R.A. Chasey

2018 Emily Allen

Juncus phaeocephalus Brown headed rush, Brownhead rush

native
Perennial grasslike herb

2021 Cynthia Powell

2017 Toni Corelli

Juncus phaeocephalus var. paniculatus Brown headed rush, Brownhead rush, Spreading brown headed rush

native
Perennial grasslike herb

2019 John Rawlings

2021 John Rawlings

2020 Alice Cummings

Juncus phaeocephalus var. phaeocephalus Brown headed rush, Brownhead rush

native
Perennial grasslike herb

2019 Dee Shea Himes

2019 Ken Hickman

2019 John Rawlings

Juncus regelii Regel's rush

• rare native
Perennial grasslike herb (rhizomatous)

2018 Susan McDougall

Juncus rugulosus Wrinkled rush

native
Perennial grasslike herb

2005 Steve Matson

Juncus saximontanus Rocky mountain rush

native
Perennial grasslike herb

2005 Steve Matson

Juncus supiniformis Hair leaved rush, Hairyleaf rush

• rare native
Perennial grasslike herb (rhizomatous)

2013 Asa Spade

Juncus tenuis Poverty rush, Slender rush

native
Perennial grasslike herb

2020 Peter Warner

2008 Keir Morse

2020 Peter Warner

Juncus textilis Basket rush

native
Perennial grasslike herb

2020 Ron Vanderhoff

Juncus tiehmii Nevada rush, Tiehm's rush

native
Annual grasslike herb

2005 Steve Matson

2003 Steve Matson

Juncus torreyi Torrey's rush

native
Perennial grasslike herb

2015 Steve Matson

Juncus triformis Yosemite dwarf rush

native
Annual grasslike herb

2003 Steve Matson

Juncus uncialis Inch high dwarf rush, Twelfth rush

native
Annual grasslike herb

2023 Robin Carter-Ervin

2014 Sierra Pacific Industries

Juncus xiphioides Iris leaved rush, Irisleaf rush

native
Perennial grasslike herb

2016 Erik Larsen

2017 Ron Vanderhoff

2023 R.A. Chasey

Juniperus californica California juniper

native
Shrub

2019 Patrick Furtado

2017 Gary McDonald

2014 Ron Vanderhoff

Juniperus chinensis Chinese juniper

non-native
Tree

2022 Ron Vanderhoff

2019 Ron Vanderhoff

Juniperus communis Common juniper, Dwarf juniper

native
Shrub

2019 Bob Sweatt

2020 Donald Burk

2010 Louis-M. Landry

Juniperus communis ssp. communis Common juniper, Dwarf juniper

native
Shrub

2019 Bob Sweatt

2020 Donald Burk

2010 Louis-M. Landry

Juniperus communis ssp. alpina Common juniper

native
Shrub

2019 Bob Sweatt

2022 Dana York

2019 Bob Sweatt

Juniperus communis var. depressa Common juniper

native
Shrub

2019 Bob Sweatt

2022 Dana York

2019 Bob Sweatt

Juniperus communis var. saxatilis Common juniper

native
Shrub

2019 Bob Sweatt

2022 Dana York

2019 Bob Sweatt

Juniperus grandis Sierra juniper

native
Tree

2016 Brett Dean

2021 Scott Yarger

1972 Dean Wm. Taylor

Juniperus occidentalis var. australis Sierra juniper

native
Tree

2016 Brett Dean

2021 Scott Yarger

1972 Dean Wm. Taylor

Juniperus occidentalis Western juniper

native
Tree

2013 Michael Kauffmann

2016 mark kircher

Juniperus monosperma Utah juniper

native
Tree, Shrub

2022 Steve Matson

Juniperus osteosperma Utah juniper

native
Tree, Shrub

2022 Steve Matson

Juniperus oxycedrus Cade juniper

non-native
Shrub

Juniperus scopulorum Rocky mountain juniper

non-native
Tree

2016 Zoya Akulova

Justicia brandegeeana Shrimpplant

non-native
Shrub

2021 Ron Vanderhoff

Justicia californica Beloperone, Chuparosa

native
Shrub

2020 David Greenberger

2020 Diane Etchison

2020 Matt Berger

Justicia carnea Brazilian-plume

non-native
Shrub

Kalanchoe blossfeldiana Madagascar widow's-thrill

non-native
Perennial herb

Kallstroemia californica California caltrop, California kallstroemia

native
Annual herb

2019 Richard Spjut

2022 Steve Matson

Kallstroemia grandiflora Arizona caltrop, Arizona poppy

non-native
Annual herb

2014 Wynn Anderson

2013 Keir Morse

2014 Wynn Anderson

Kallstroemia parviflora Few flowered caltrop, Warty caltrop

• rare native
Annual herb

2013 Keir Morse

Kalmia microphylla ssp. occidentalis Mountain laurel, Bog laurel

native
Shrub

2011 Steve Matson

Kalmia polifolia Mountain laurel, Bog laurel

native
Shrub

2011 Steve Matson

Kalmia polifolia ssp. microphylla Mountain laurel, Bog laurel

native
Shrub

2011 Steve Matson

Kalmia polifolia var. microphylla Mountain laurel, Bog laurel

native
Shrub

2011 Steve Matson

Keckiella antirrhinoides Chaparral beard tongue, Snapdragon penstemon

native
Shrub

2019 Mary Wloch

2018 Elizabeth Groom

2019 Diane Etchison

Keckiella antirrhinoides var. antirrhinoides Chaparral beard tongue

native
Shrub

Keckiella antirrhinoides var. antirrhinoides

2020 Ron Vanderhoff

2019 Ron Vanderhoff

2020 Diane Etchison

Keckiella antirrhinoides var. microphylla Chaparral beard tongue, Little leaved chaparral beard tongue

native
Shrub

Keckiella antirrhinoides var. microphylla

2008 Steve Matson

Keckiella breviflora Bush beardtongue, Gaping keckiella

native
Shrub

2012 Steve Matson

2019 Ramona Robison

2023 Karen Swift

Keckiella breviflora var. breviflora Gaping keckiella, Gaping penstemon

native
Shrub

2016 Steve Matson

Keckiella breviflora var. glabrisepala Hairless gaping keckiella

native
Shrub

2012 Steve Matson

Keckiella cordifolia Climbing penstemon, Heart leaved keckiella, Heartleaf keckiella

native
Shrub

2020 Ron Vanderhoff

2022 Bryant Baker

Keckiella corymbosa Red beardtongue, Redwood keckiella

native
Shrub

2021 Mary Ann Machi

2019 David Greenberger

2022 Ryan O'Dell

Keckiella lemmonii Bush beardtongue, Lemmon beardtongue, Lemmon's keckiella

native
Shrub

2019 Bob Sweatt

2015 Tim Miller

2020 Julie A. Kierstead

Keckiella rothrockii Rothrock's keckiella

native
Shrub

2022 Mike Russler

2017 Steve Matson

Keckiella rothrockii var. jacintensis San jacinto mts. keckiella

native
Shrub

2012 Steve McWilliams

2022 Diane Etchison

Keckiella rothrockii var. rothrockii Rothrock's keckiella

native
Shrub

2017 Steve Matson

2015 Steve Matson

Keckiella ternata Blue stemmed keckiella, Scarlet keckiella

native
Shrub

2016 Janith Johnson

2017 Aaron Echols

2016 Brett Dean

Keckiella ternata var. septentrionalis Northern blue stemmed keckiella

native
Shrub

2012 Neal Kramer

2012 Robert Sikora

2012 Neal Kramer

Keckiella ternata var. ternata Blue stemmed keckiella

native
Shrub

2016 Brett Dean

2017 Aaron Echols

2019 Ron Vanderhoff

Kelloggia galioides Milk kelloggia

native
Perennial herb

2003 Steve Matson

2020 Bob Sweatt

2019 Bob Sweatt

Kerria japonica Japanese rose

non-native

Kickxia elatine Sharp leaved fluellin, Sharp point fluellin, Sharpleaf cancerwort

non-native
Perennial herb

2023 John Malpas

2018 Ron Vanderhoff

2016 Barbara Boethling

Kickxia spuria Fluellin, Roundleaf cancerwort

non-native
Perennial herb

2020 David Wolfson

2020 Vivian Neou

2023 R.A. Chasey

Kniphofia uvaria Redhot poker

• invasive non-native
Perennial herb

ASPHODELACEAE

2022 Michael Mitchell

2021 Avis Boutell

2013 Michael Mitchell

Kobresia bellardii Bellardi bog sedge

• rare native
Perennial grasslike herb (rhizomatous)

1965 Dean Wm. Taylor

2010 Dr. Dean Wm. Taylor

Kobresia myosuroides Bellardi bog sedge

• rare native
Perennial grasslike herb (rhizomatous)

1965 Dean Wm. Taylor

2010 Dr. Dean Wm. Taylor

Kochia americana Green molly, Red sage

native
Perennial herb

2013 Trent M. Draper

2015 Steve Matson

Bassia scoparia Common red sage, Mexican fireweed, Summer cypress

• invasive non-native
Annual herb

2013 Daniel Lubin

Kochia scoparia Common red sage, Mexican fireweed, Summer cypress

• invasive non-native
Annual herb

2013 Daniel Lubin

Kochia scoparia ssp. scoparia red sage

• invasive non-native
Annual herb

2012 Jean Pawek

Koeberlinia spinosa Crown of thorns

native
Shrub

KOEBERLINIACEAE

2020 Debra Valov

2004 Heath McAllister

Koeberlinia spinosa var. wivaggii Crown of thorns

native
Shrub

KOEBERLINIACEAE

2020 Debra Valov

2004 Heath McAllister

Koeberlinia spinosa var. tenuispina Crown of thorns

• rare native
Shrub

KOEBERLINIACEAE

2013 Tim Thomas

2011 Dustin Ray

Koeleria gerardi Annual june grass, bristly koeleria

non-native
Annual grass

2021 Donald Burk

2019 John Rawlings

Koeleria phleoides Annual june grass, bristly koeleria

non-native
Annual grass

2023 Ron Vanderhoff

2022 Ron Vanderhoff

Lophochloa cristata Annual june grass, bristly koeleria

non-native
Annual grass

2023 Ron Vanderhoff

2022 Ron Vanderhoff

Rostraria cristata Annual june grass, bristly koeleria

non-native
Annual grass

2023 Ron Vanderhoff

2022 Ron Vanderhoff

Koeleria macrantha June grass, Prairie junegrass

native
Perennial grass

2023 Helen Hancock

2015 Steve Matson

Koeleria pyramidata June grass, Prairie junegrass

native
Perennial grass

2023 Helen Hancock

2015 Steve Matson

Koelreuteria bipinnata Goldenrain tree

non-native
Tree

2022 Ron Vanderhoff

2020 Ron Vanderhoff

2021 Ron Vanderhoff

Koelreuteria paniculata Goldenrain tree

non-native
Tree

2020 Jennifer Mo

2018 Ron Vanderhoff

2016 Neal Kramer

Kolkwitzia amabilis Beautybush

non-native
Shrub

Boschniakia hookeri Small groundcone

• rare native
Perennial herb

2020 Hunter Breck

2022 Michael Heine

2020 Hunter Breck

Kopsiopsis hookeri Small groundcone

• rare native
Perennial herb

2020 Hunter Breck

2022 Michael Heine

2020 Hunter Breck

Boschniakia strobilacea ground cone, groundcone , California ground-cone

native
Perennial herb (parasitic)

2020 Ralph Henson

2023 MCOSD EDRR

2019 Jonathan Lee

Kopsiopsis strobilacea ground cone, groundcone , California ground-cone

native
Perennial herb (parasitic)

2020 Ralph Henson

2023 MCOSD EDRR

2019 Jonathan Lee

Krameria bicolor White rhatany

native
Shrub

2019 Ron Vanderhoff

2019 Matt Berger

Krameria grayi White rhatany

native
Shrub

2019 Ron Vanderhoff

2019 Matt Berger

Krameria erecta Little leaved ratany, Littleleaf ratany, Pima rhatany

native
Shrub

2017 Bonnie Nickel

2019 Matt Berger

2017 Thomas Egan

Krameria parvifolia Little leaved ratany, Littleleaf ratany, Pima rhatany

native
Shrub

2017 Bonnie Nickel

2019 Matt Berger

2017 Thomas Egan

Krascheninnikovia lanata Winter fat, Winterfat

native
Shrub

2011 Steve Matson

2019 Marcia Mack

2011 Steve Matson

Kyhosia bolanderi Bolander's madia

native
Perennial herb

2020 Bob Sweatt

2007 Steve Matson

Madia bolanderi Bolander's madia

native
Perennial herb

2020 Bob Sweatt

2007 Steve Matson

Kyllinga brevifolia Short leaf spikesedge, Shortleaf spikesedge

non-native
Perennial grasslike herb

2020 Ron Vanderhoff

2017 Ron Vanderhoff

2020 Ron Vanderhoff

Lablab purpureus Hyacinthbean

non-native
Vine

2018 Zoya Akulova

Laburnum anagyroides Golden chain tree

non-native
Tree

2018 Peter Warner

2018 Gregory Arena

2018 Peter Warner

Lactuca biennis Biennial wild lettuce, Tall blue lettuce

non-native
Perennial herb

2016 David popp

2018 Thomas Reyes

Lactuca canadensis Canada lettuce, Canada wild lettuce

non-native
Perennial herb

2006 Louis-M. Landry

Lactuca saligna Narrow leaved wild lettuce, Willow lettuce, Willowleaf lettuce

non-native
Annual herb

2021 Don Hollander

2019 Stacie Wolny

2021 Don Hollander

Lactuca sativa Garden lettuce

• invasive non-native
Annual herb

2009 Barry Rice

Ordano � 2004 California Academy of Sciences

Lactuca sativa var. capitata Garden lettuce

• invasive non-native
Annual herb

2009 Barry Rice

Ordano � 2004 California Academy of Sciences

Lactuca serriola Prickly lettuce, Prickly wild lettuce

• invasive non-native
Annual herb

2017 Gary McDonald

Lactuca tatarica Blue lettuce

native
Perennial herb

2016 Keir Morse

2017 John Doyen

1995 Saint Mary's College of California

Lactuca pulchella Blue lettuce

native
Perennial herb

2012 Richard Spellenberg

2014 Richard Spellenberg

2015 Richard Spellenberg

Lactuca tatarica var. pulchella Blue lettuce

native
Perennial herb

2012 Richard Spellenberg

2014 Richard Spellenberg

2015 Richard Spellenberg

Mulgedium oblongifolium Blue lettuce

native
Perennial herb

2012 Richard Spellenberg

2014 Richard Spellenberg

2015 Richard Spellenberg

Mulgedium pulchellum Blue lettuce

native
Perennial herb

2012 Richard Spellenberg

2014 Richard Spellenberg

2015 Richard Spellenberg

Lactuca virosa Bitter lettuce, Poison wild lettuce

non-native
Perennial herb

2019 Randy Huey

2022 R.A. Chasey

2010 Cynthia Powell

Ladeania lanceolata Lance-leaved scurf-pea

• rare native
Perennial herb

2011 Steve Matson

Psoralidium lanceolatum Lance-leaved scurf-pea

• rare native
Perennial herb

2011 Steve Matson

Conyza coulteri Coulter's horseweed

native
Annual herb

2012 Steve Matson

Laennecia coulteri Coulter's horseweed

native
Annual herb

2012 Steve Matson

Lagenaria siceraria Bottle gourd

non-native
Annual herb, Vine

Lagerstroemia indica Crapemyrtle

non-native
Tree, Shrub

2005 Luigi Rignanese

Nick Kurzenko

Lagophylla diabolensis Diablo Range hare-leaf

• rare native
Annual herb

2022 Mike Russler

Lagophylla dichotoma Forked hareleaf

• rare native
Annual herb

2010 Chris Winchell

2010 Ryan O'Dell

Lagophylla glandulosa Glandular hareleaf

native
Annual herb

2021 Steve Laymon

2022 Cynthia Powell

Lagophylla minor Lesser hareleaf, Little hareleaf

native
Annual herb

2020 Natasha Khanna-Dang

2021 Paul Aigner

Lagophylla ramosissima Branched lagophylla, Common hareleaf

native
Annual herb

2019 Diane Etchison

2021 Dee Shea Himes

2020 Ken Hickman

Lagophylla ramosissima ssp. ramosissima Branched lagophylla, Common hareleaf

native
Annual herb

2019 Diane Etchison

2021 Dee Shea Himes

2020 Ken Hickman

Lagunaria patersonia Cow itch tree

non-native

2018 Ron Vanderhoff

2012 Ron Vanderhoff

2016 Zoya Akulova

Lagurus ovatus Hare's tail grass, Harestail grass

non-native
Annual grass

2022 R.A. Chasey

2007 K Suri

2020 Ramona Robison

Lamarckia aurea Goldentop grass

non-native
Annual grass

2017 B.J. Dion

2019 Ron Vanderhoff

2015 James Gonsman

Lamiastrum galeobdolon Yellow archangel

non-native
Perennial herb

2021 Donald Burk

2016 Ramona Robison

2007 Louis-M. Landry

Lamiastrum galeobdolon ssp. argentatum Yellow archangel

non-native
Perennial herb

2021 Donald Burk

2016 Ramona Robison

2007 Louis-M. Landry

Lamium amplexicaule Giraffe head, Henbit deadnettle

non-native
Annual herb

2005 Steve Matson

2021 Mike Russler

Lamium maculatum Spotted henbit

non-native
Annual herb

Lamium purpureum Henbit, Purple dead nettle, Purple deadnettle

non-native
Annual herb

2022 Emily R. Allen

2023 R.A. Chasey

2020 Cynthia Powell

Lampranthus aurantiacus Golden iceplant

non-native
Perennial herb

2015 Asa B Spade

2015 Asa Spade

2008 Joseph Dougherty, M.D./ecology.org

Lampranthus coccineus Redflush

non-native
Perennial herb

2005 Louis-M. Landry

Landoltia punctata Dotted duckmeat

native
Annual, Perennial herb

2010 George W. Hartwell

2022 David popp

2010 George W. Hartwell

Langloisia setosissima Bristly langloisia, Great basin langloisia, Lilac sunbonnet

native
Annual herb

2019 Matt Berger

Geoff Burleigh

Langloisia setosissima ssp. punctata Great basin langloisia, Lilac sunbonnet

native
Annual herb

2020 Matt Berger

2019 Matt Berger

2023 Mike Russler

Langloisia setosissima ssp. setosissima Bristly langloisia, Great basin langloisia

native
Annual herb

2016 Steve Matson

2019 Matt Berger

Lantana camara Lantana

• invasive non-native
Shrub

2021 Ron Vanderhoff

2022 David Strauch

Lantana montevidensis Trailing lantana, Trailing shrubverbena

non-native
Vine, Shrub

2019 Ron Vanderhoff

2022 Andy Ford

2023 Aracely Lara

Lantana urticoides West indian shrubverbena

native
Shrub

2016 Wynn Anderson

Laportea interrupta Hawai'i woodnettle

non-native
Annual, Perennial herb

Lappula occidentalis Redowski's stickseed, Stickweed

native
Annual herb

2009 Steve Matson

2005 Steve Matson

Lappula redowskii Redowski's stickseed, Stickweed

native
Annual herb

2009 Steve Matson

2005 Steve Matson

Lappula occidentalis var. cupulata Cupped redowski's stickseed

native
Annual herb

2008 Steve Matson

Lappula redowskii var. cupulata Cupped redowski's stickseed

native
Annual herb

2008 Steve Matson

Lappula occidentalis var. occidentalis Redowski's stickseed

native
Annual herb

2009 Steve Matson

2005 Steve Matson

Lappula redowskii var. redowskii Redowski's stickseed

native
Annual herb

2009 Steve Matson

2005 Steve Matson

Lappula fremontii European stickseed

non-native
Annual herb

2008 Louis-M. Landry

Lappula squarrosa European stickseed

non-native
Annual herb

2008 Louis-M. Landry

Lapsana communis Common nipplewort, Nipplewort

non-native
Annual herb

2019 Jennifer Mo

2021 R.A. Chasey

2019 Jennifer Mo

Larrea divaricata South american creosote bush

native
Shrub

2023 Keir Morse

2019 Daria Snider

2022 Mike Russler

Larrea tridentata South american creosote bush

native
Shrub

2023 Keir Morse

2019 Daria Snider

2022 Mike Russler

Lasiospermum bipinnatum Woolly fruit

non-native
Perennial herb

2015 Richard Spellenberg

Lastarriaea coriacea Leather spineflower

native
Annual herb

2020 Ron Vanderhoff

2021 Jacob Smith

Lasthenia burkei Burke's baeria, Burke's goldfields

• rare native
Annual herb

2015 Neal Kramer

2018 Zoya Akulova

2002 John Game

Lasthenia californica California goldfields, Common goldfields, Valley goldfields

native
Annual herb

2017 David Greenberger

2020 Susan White

2017 MCOSD EDRR

Lasthenia californica ssp. bakeri Baker's goldfields

• rare native
Annual herb

2016 William Maslach

2015 Asa Spade

Lasthenia californica ssp. californica California goldfields

native
Annual herb

2021 Charles Russell

2022 Steve Matson

2015 Toni Corelli

Lasthenia californica ssp. macrantha Perennial goldfields

• rare native
Perennial herb

2022 R.A. Chasey

2023 Mary Ann Machi

2017 David Greenberger

Lasthenia macrantha Perennial goldfields

• rare native
Perennial herb

2022 R.A. Chasey

2023 Mary Ann Machi

2017 David Greenberger

Lasthenia macrantha ssp. macrantha Perennial goldfields

• rare native
Perennial herb

2022 R.A. Chasey

2023 Mary Ann Machi

2017 David Greenberger

Lasthenia chrysantha Alkali goldfields, Alkalisink goldfields

native
Annual herb

2019 Mary Merriman

2020 Ramona Robison

2019 Catherine Capone

Lasthenia conjugens Contra costa goldfields

• rare native
Annual herb

2022 Irene Rosen

2022 Scott Yarger

Lasthenia coronaria Royal goldfields

native
Annual herb

2021 Aaron Echols

Lasthenia debilis Greene's goldfields

native
Annual herb

2019 Mary Merriman

2019 Susan McDougall

Lasthenia ferrisiae Alkali goldfields, Ferris' goldfields

• rare native
Annual herb

2022 Mary Merriman

2022 Denise Defreese

2023 Ryan O'Dell

Lasthenia fremontii Fremont's goldfields, Vernal pool goldfields

native
Annual, Perennial herb

2023 G Froelich

2024 Cynthia Powell

2022 Steve Matson

Lasthenia glaberrima Smooth goldfields

native
Annual herb

2017 Michael Mitchell

2020 Matt Berger

2020 R.A. Chasey

Lasthenia glabrata Yellow rayed goldfields, Yellow rayed lasthenia, Yellowray goldfields

native
Annual herb

2022 Morgan Stickrod

2020 Aaron Echols

2023 Ron Vanderhoff

Lasthenia glabrata ssp. coulteri Coulter goldfields, Coulter's goldfields, Goldfields

• rare native
Annual herb

2023 Ron Vanderhoff

Lasthenia glabrata ssp. glabrata Yellow rayed goldfields, Yellowray goldfields

native
Annual herb

2022 Morgan Stickrod

2014 Robert F Norris

Lasthenia gracilis Needle goldfields

native
Annual herb

2014 Steve Matson

Lasthenia maritima Maritime goldfields, Seaside goldfields

native
Annual herb

2015 Richard Chasey

2013 Robert Steers/NPS

Lasthenia microglossa Small rayed goldfields, Smallray goldfields, Smallrayed lasthenia

native
Annual herb

2019 Matt Berger

2022 Ryan O'Dell

Lasthenia minor Coastal goldfields, Smooth lasthenia, Woolly goldfields

native
Annual herb

2007 Toni Corelli

2019 James Gonsman

2015 Toni Corelli

Lasthenia platycarpha Alkali goldfields

native
Annual herb

2016 Marco Siragusa

2008 Zoya Akulova

Lathrocasis tenerrima Delicate gilia

native
Annual herb

2019 Steve Matson

Lathyrus angulatus Angled pea vine

non-native
Vine

2019 Julie Kierstead Nelson

2022 Emily R. Allen

Lathyrus aphaca Yellow pea, Yellow vetchling

non-native
Annual herb

2016 Jim Xerogeanes

2009 Zoya Akulova

2016 Jim Xerogeanes

Lathyrus biflorus Two flowered pea, Twoflower pea

• rare native
Perennial herb

2005 Jennifer L. Kalt

2009 Tony LaBanca

2005 Jennifer L. Kalt

Lathyrus brownii Brown's brush pea

native
Perennial herb

2019 Julie Kierstead Nelson

2017 David popp

1992 Gary A. Monroe

Lathyrus cicera Red peavine

non-native
Annual herb

2020 Dan Antonaccio

2021 Judy Schwartz

2019 Thomas Reyes

Lathyrus delnorticus Del norte pea

• rare native
Perennial herb

2020 Kolby Lundgren

2022 Tricia Bippus

2007 Norman Jensen

Lathyrus glandulosus Redwood pea, Sticky pea

• rare native
Perennial herb (rhizomatous)

2011 Barrett Jeffery

Lathyrus graminifolius Grassleaf pea

non-native
Perennial herb

Lathyrus hirsutus Caley pea, Rough pea

non-native
Annual herb

2023 R.A. Chasey

Lathyrus hitchcockianus Bullfrog mountain pea, Grapevine mtns. pea

• rare native
Vine

2011 Teague Embrey

Lathyrus japonicus Beach pea, Sea pea

• rare native
Perennial herb

2017 Steve Matson

Lathyrus japonicus var. maritimus Beach pea, Sea pea

• rare native
Perennial herb

2017 Steve Matson

Lathyrus jepsonii Delta tule pea, Jepson's pea

native
Perennial herb

2022 Morgan Stickrod

2021 Jamie Spielmann

Lathyrus jepsonii var. californicus California tule pea

native
Perennial herb

2020 R.A. Chasey

2019 Esther Cole

2020 R.A. Chasey

Lathyrus jepsonii var. jepsonii Delta tule pea

• rare native
Perennial herb

2022 Liz Bittner

2022 Sara Taylor

Lathyrus lanszwertii Nevada pea

native
Perennial herb

2005 Steve Matson

2008 Gary A. Monroe

2020 Bob Sweatt

Lathyrus pauciflorus Nevada pea

native
Perennial herb

2005 Steve Matson

2008 Gary A. Monroe

2020 Bob Sweatt

Lathyrus pauciflorus var. utahensis Nevada pea

native
Perennial herb

2005 Steve Matson

2008 Gary A. Monroe

2020 Bob Sweatt

Lathyrus lanszwertii var. lanszwertii Lanszwert's pea, Nevada pea

native
Perennial herb

2005 Steve Matson

2008 Gary A. Monroe

2005 Steve Matson

Lathyrus lanszwertii var. tracyi Tracy's nevada pea, Tracy's pea

native
Perennial herb

2013 Scot Loring

Lathyrus latifolius Everlasting pea, Perennial pea, Perennial sweet pea

non-native
Perennial herb

2020 Jutta Burger

2019 Cynthia Powell

2021 Sherry Adams

Lathyrus littoralis Beach pea, Silky beach pea

native
Perennial herb

2017 Steve Matson

2020 Steve Conger

Lathyrus nevadensis Sierra pea

native
Perennial herb

2012 BOB CASE

2019 Bob Sweatt

2022 Ryan O'Dell

Lathyrus nevadensis var. nevadensis Sierra nevada pea, Sierra pea

native
Perennial herb

2019 Susan McDougall

2022 Ryan O'Dell

2019 Susan McDougall

Lathyrus odoratus Common sweet pea, Garden sweet pea, Sweetpea

non-native
Annual herb

2017 danielle noe

2022 Ron Vanderhoff

Lathyrus palustris Marsh pea

• rare native
Perennial herb

2021 Kipp Pow

2022 Dana York

2008 Jennifer L. Kalt

Lathyrus polyphyllus Leafy pea, Oregon pea

native
Perennial herb

2005 Jerry Murray

2008 Keir Morse

2009 Zoya Akulova

Lathyrus rigidus Rigid pea, Stiff pea

• rare native
Perennial herb

2008 Christopher L. Christie

Lathyrus sphaericus Grass peavine

non-native
Annual herb

2019 Bill Haley

2018 James Gonsman

Lathyrus splendens Pride of california

• rare native
Perennial herb

2019 Matt Berger

Lathyrus sulphureus Brewer's pea, Snub pea, Sulphur pea

native
Perennial herb

2016 Steve Matson

2019 Joe Engelbrecht

Lathyrus tingitanus Tangier pea

non-native
Annual herb

2015 Ron Vanderhoff

2019 Ron Vanderhoff

Lathyrus torreyi Redwood pea, Torrey's pea

native
Perennial herb

2018 Hayley Ross

2019 Jon Thompson

Lathyrus venosus Bolander's pea, Common pacific pea, Pacific peavine

native
Perennial herb

2018 Stacie Wolny

2019 Ron Vanderhoff

2019 Steve Conger

Lathyrus vestitus Bolander's pea, Common pacific pea, Pacific peavine

native
Perennial herb

2018 Stacie Wolny

2019 Ron Vanderhoff

2019 Steve Conger

Lathyrus vestitus var. alefeldii San diego pea

native
Perennial herb

2019 Ron Vanderhoff

2016 Mark Harelik

2019 Diane Etchison

Lathyrus vestitus var. ochropetalus Bolander's pacific pea, Bolander's pea, Pale pacific pea

native
Perennial herb

2016 Stephanie Sonora

2013 Ron Clark

Lathyrus vestitus var. vestitus Common pacific pea, Hillside pea, Wild sweetpea

native
Perennial herb

2023 Steve Conger

2022 Charles Russell

2015 Chris Jaster

Laurus nobilis Sweet bay

non-native
Tree

2021 Jennifer Mo

2019 Jennifer Mo

Lavandula angustifolia English lavender

non-native
Shrub

Lavandula stoechas French lavender

non-native
Shrub

2022 Robert Steers

2019 Julian Geoghegan

2015 Chris Jaster

Lavatera assurgentiflora ssp. glabra Southern island mallow

• rare native
Shrub

1993 Dean Wm. Taylor

Lavatera olbia Tree lavatera

non-native
Shrub

2012 Dean Wm. Taylor, Ph.D.

Lavatera trimestris Annual mallow

non-native
Annual herb

2011 Nick Kurzenko

Nick Kurzenko

2011 Nick Kurzenko

Layia carnosa Beach layia, Beach tidytips

• rare native
Annual herb

2020 David Greenberger

2019 Scott Yarger

2016 Steve Matson

Layia chrysanthemoides Smooth tidy tips, Smooth tidytips

native
Annual herb

2021 Charles Russell

2017 Steve Matson

2021 Charles Russell

Layia chrysanthemoides ssp. maritima Smooth tidy tips, Smooth tidytips

native
Annual herb

2021 Charles Russell

2017 Steve Matson

2021 Charles Russell

Layia discoidea Rayless layia, Rayless tidytips

• rare native
Annual herb

2023 Mike Russler

Layia fremontii Fremont layia, Fremont's tidy tips, Fremont's tidytips

native
Annual herb

2021 Steve Matson

2022 Steve Matson

2021 Steve Matson

Layia gaillardioides Woodland layia, Woodland tidytips

native
Annual herb

2021 R.A. Chasey

2022 John Rawlings

2019 John Rawlings

Layia glandulosa White layia, White tidy tips, Whitedaisy tidytips

native
Annual herb

2016 James Gonsman

2021 Mike Russler

Layia glandulosa ssp. lutea White layia, White tidy tips, Whitedaisy tidytips

native
Annual herb

2016 James Gonsman

2021 Mike Russler

Layia heterotricha Pale yellow layia, Paleyellow tidytips

• rare native
Annual herb

2021 Mike Russler

2018 Sarah Termondt

Layia hieracioides Hawkweed layia, Tall layia, Tall tidytips

native
Annual herb

2020 David Greenberger

2021 R.A. Chasey

2022 R.A. Chasey

Layia jonesii Jones' tidytips, Jones's layia

• rare native
Annual herb

2021 Kristen Nelson

2011 Chris Winchell

Layia leucopappa Comanche point layia, Comanche point tidytips

• rare native
Annual herb

2016 Steve Matson

2018 Richard Spjut

2016 Steve Matson

Layia munzii Munz's tidy tips, Munz's tidytips

• rare native
Annual herb

2006 Steve Matson

2015 Craig Fiehler

2006 Steve Matson

Layia pentachaeta Sierra tidy tips, Sierra tidytips

native
Annual herb

2024 Mike Russler

2021 R.A. Chasey

2015 Mary Merriman

Layia pentachaeta ssp. albida Sierra tidytips, White sierra tidy tips

native
Annual herb

2024 Mike Russler

2023 Ryan O'Dell

2020 David Greenberger

Layia pentachaeta ssp. pentachaeta Sierra tidy tips, Sierra tidytips

native
Annual herb

2023 Mike Russler

2021 R.A. Chasey

2023 Mike Russler

Layia platyglossa Coastal tidytips

native
Annual herb

2015 Amy Rapport

2019 Jenna T. B. Ekwealor

2017 Chris Mo

Layia septentrionalis Colusa layia, Colusa tidytips

• rare native
Annual herb

2023 R.A. Chasey

Leersia oryzoides Rice cutgrass

native
Perennial grass

2019 Jennifer Mo

2008 Keir Morse

2017 jerry fitch

Legenere limosa False venus' looking glass, Legenere

• rare native
Annual herb

1902 John Game

2019 Ramona Robison

Legousia speculum-veneris European venus' looking glass

non-native
Annual, Perennial herb

2008 Dr. Amadej Trnkoczy

Lemna gibba Duckweed, Gibbous duckweed, Swollen duckweed

native
Perennial herb

2020 Ron Vanderhoff

2021 Ron Vanderhoff

2019 Ron Vanderhoff

Lemna minor Smaller duckweed

native
Perennial herb

2019 Ron Vanderhoff

Lemna minuta Least duckweed

native
Perennial herb

2022 Ron Vanderhoff

2020 Ron Vanderhoff

2019 Ron Vanderhoff

Lemna trisulca Ivy leaved duckweed, Star duckweed

native
Perennial herb

2006 Steve Matson

Lemna turionifera Turion duckweed

native
Perennial herb

2001 James B. Gratiot

2014 Jeff Greenhouse

Lemna valdiviana Valdivia duckweed

native
Perennial herb

2017 James Bailey

2021 John Rawlings

Lens culinaris Lentil

non-native
Annual herb

2020 Donald Burk

2007 Luigi Rignanese

2020 Donald Burk

Leonotis leonurus Lion's ear

non-native
Perennial herb

2020 Ron Vanderhoff

2021 David Wolfson

2020 Ron Vanderhoff

Leonotis nepetifolia Christmas candlestick

non-native
Perennial herb

Leontodon autumnalis Fall dandelion

non-native
Annual herb

2008 Zoya Akulova

2006 Louis-M. Landry

Scorzoneroides autumnalis Fall dandelion

non-native
Annual herb

2008 Zoya Akulova

2006 Louis-M. Landry

Leontodon saxatilis Hawkbit

non-native
Annual herb

2008 Steve Matson

2023 Alaine Arslan

Leontodon taraxacoides Hawkbit

non-native
Annual herb

2008 Steve Matson

2023 Alaine Arslan

Leontodon saxatilis ssp. longirostris Hawkbit

non-native
Annual herb

2008 Steve Matson

Leontodon saxatilis ssp. saxatilis

non-native
Perennial herb

2008 Dee Warenycia

2009 Zoya Akulova

Leonurus sibiricus Honeyweed

non-native
Annual, Perennial herb

2012 Zoya Akulova

Lepechinia calycina White pitcher sage, Woodbalm, pitcher sage

native
Shrub

2020 Janice Kuch

2021 Ryan Carle

2023 Mike Russler

Lepechinia cardiophylla Heart leaved pitcher sage, Santa ana pitchersage

• rare native
Shrub

2022 Ron Vanderhoff

2019 Ron Vanderhoff

Lepechinia fragrans Fragrant pitcher sage, Island pitchersage

• rare native
Shrub

2023 Ron Vanderhoff

2023 Keir Morse

2020 Susan McDougall

Lepechinia ganderi Gander's pitcher sage, San diego pitchersage

• rare native
Shrub

2021 Ron Vanderhoff

Lepidium acutidens Net pepper grass

native
Annual, Perennial herb

2017 Steve Matson

2022 Catherine Chang

Lepidium acutidens var. cornigerum Net pepper grass

native
Annual, Perennial herb

2017 Steve Matson

2022 Catherine Chang

Lepidium alyssoides Mesa pepperwort

non-native
Perennial herb

Cardaria pubescens Hairy whitetop

• invasive non-native
Perennial herb

2019 Richard Spjut

2017 Leif Johnson

2019 Richard Spjut

Lepidium appelianum Hairy whitetop

• invasive non-native
Perennial herb

2019 Richard Spjut

2017 Leif Johnson

2019 Richard Spjut

Lepidium campestre Cow cress, English pepper grass, Field pepper grass

non-native
Annual, Perennial herb

2020 Bob Sweatt

Lepidium chalepense Lens-podded hoary cress

• invasive non-native
Annual, Perennial herb

2021 Donald Burk

2021 Ramona Robison

Lepidium coronopus Swine cress

non-native
Annual, Perennial herb

2009 Zoya Akulova-Barlow

Lepidium densiflorum Common pepper grass, Common pepperweed

native
Annual herb

2020 Ron Vanderhoff

2016 Steve Matson

Lepidium dictyotum Alkali pepperweed, Net pepper grass

native
Annual herb

2023 Catherine Chang

2022 Dianne Lake

Coronopus didymus Lesser swine cress

non-native
Annual herb

2022 Shawna Martinez

2023 Ron Vanderhoff

Lepidium didymum Lesser swine cress

non-native
Annual herb

2022 Shawna Martinez

2023 Ron Vanderhoff

Cardaria draba Whitetop

• invasive non-native
Perennial herb

2020 Ron Vanderhoff

2021 Mike Russler

2020 Ron Vanderhoff

Lepidium draba Whitetop

• invasive non-native
Perennial herb

2020 Ron Vanderhoff

2021 Mike Russler

2020 Ron Vanderhoff

Lepidium flavum Yellow pepper grass, Yellow pepperweed

native
Annual herb

2019 Susan McDougall

2019 Diane Etchison

2022 Steve Matson

Lepidium fremontii Desert alysum, Desert pepper grass, Desert pepperweed

native
Perennial herb

2010 Steve Matson

2015 Steve Matson

2011 Steve Matson

Lepidium fremontii var. fremontii Desert alysum, Desert pepper grass, Desert pepperweed

native
Perennial herb

2010 Steve Matson

2015 Steve Matson

2011 Steve Matson

Lepidium heterophyllum Purpleanther field pepperweed, Variable leaved pepper grass, Variable leaved pepperwort

non-native
Annual herb

2023 Emily R. Allen

Lepidium jaredii Jared's pepper grass, Jared's pepperweed

native
Annual herb

2023 Matt Berger

2020 Matt Berger

Lepidium jaredii ssp. album Panoche pepper grass

• rare native
Annual herb

2020 Matt Berger

Lepidium lasiocarpum Shaggyfruit pepperweed

native
Annual herb

2022 Steve Matson

2015 Steve Matson

2023 Steve Matson

Lepidium lasiocarpum ssp. lasiocarpum Shaggyfruit pepperweed

native
Annual herb

2022 Steve Matson

2015 Steve Matson

2022 Steve Matson

Lepidium latifolium Broad leaved pepper grass, Broadleaved pepperweed, Perennial pepperweed

• invasive non-native
Perennial herb

2022 Donald Burk

2020 Ron Vanderhoff

2021 Michelle Karle

Lepidium latipes Dwarf pepper grass, Dwarf peppergrass, San diego pepperweed

native
Annual herb

2017 Steve Matson

Lepidium latipes var. heckardii Heckard's pepper grass, Heckard's pepperweed

• rare native
Annual herb

2009 Vernon Smith

2023 Justin Chappelle

2018 Jennifer Buck

Lepidium montanum Mountain pepper grass, Mountain pepperweed

native
Perennial herb

2008 Steve Matson

Lepidium nitidum Peppergrass, Shining pepper grass, Shining pepperweed

native
Annual herb

2021 Steve Matson

2016 Steve Matson

2021 Steve Matson

Lepidium oblongum Veiny pepper grass, Veiny pepperweed, Wayside peppergrass

native
Annual herb

2017 Ron Vanderhoff

2014 Steve Matson

2017 Ron Vanderhoff

Lepidium oxycarpum Forked pepperweed, Sharp podded pepper grass

native
Annual herb

2022 R.A. Chasey

2009 Zoya Akulova

2007 Christopher Bronny

Lepidium perfoliatum Clasping pepperweed, Klamath pepper grass, Shield cress

non-native
Annual herb

2020 Bob Sweatt

2017 Barbara Boethling

2009 Steve Matson

Lepidium pinnatifidum Featherleaf pepperweed, Wayside pepper grass

non-native
Annual, Perennial herb

2016 Keir Morse

1982 Robert E. Preston, Ph.D.

2010 Zoya Akulova

Lepidium sativum Gardencress pepperweed

non-native
Annual herb

2018 Dr. Mark S. Brunell

Lepidium strictum Peppergrass, Prostrate pepper grass, Upright pepperweed

native
Annual herb

2022 Ron Vanderhoff

2022 Jim Xerogeanes

2022 Ron Vanderhoff

Lepidium thurberi Thurber's pepper grass, Thurber's pepperweed

native
Annual herb

2019 John Doyen

2012 Robert Sivinski

Lepidium virginicum Virginia pepperweed, Wild pepper grass

native
Annual herb

2020 David Greenberger

2020 Aaron Echols

2021 Jacob Smith

Lepidium virginicum var. tepicense Virginia pepperweed, Wild pepper grass

native
Annual herb

2020 David Greenberger

2020 Aaron Echols

2021 Jacob Smith

Lepidium virginicum var. menziesii Robinson's pepper grass

native
Annual herb

2011 Ramona Robison

2018 Al Keuter

Lepidium virginicum ssp. virginicum Wild pepper grass

native
Annual herb

2020 David Greenberger

2021 Jacob Smith

Lepidium virginicum var. robinsonii Robinson's pepper grass, Robinson's pepperweed

• rare native
Annual herb

2022 Ron Vanderhoff

2014 Keir Morse

Lepidospartum latisquamum Nevada broomsage, Nevada broomshrub, Scale broom

native
Shrub

2012 Steve Matson

2013 Steve Matson

2012 Steve Matson

Lepidospartum squamatum California broomsage, California broomshrub, Scale broom

native
Shrub

2021 Mike Russler

2021 David Wolfson

2021 Mike Russler

Leptochloa fusca ssp. fascicularis Bearded sprangletop

native
Annual grass

2023 Donald Burk

2021 R.A. Chasey

2021 Ken Hickman

Leptochloa fusca ssp. uninervia Mexican sprangletop

native
Annual grass

2009 Ron Vanderhoff

2012 James M. Andre

2016 Neil Uelman

Leptosiphon ambiguus Serpentine leptosiphon

• rare native
Annual herb

2019 David Greenberger

2019 Paul Hankamp

2018 Elinor Gates

Linanthus ambiguus Serpentine leptosiphon

• rare native
Annual herb

2019 David Greenberger

2019 Paul Hankamp

2018 Elinor Gates

Leptosiphon androsaceus False babystars

native
Annual herb

2010 Jeffrey Hapeman

2020 R.A. Chasey

2014 James Gonsman

Linanthus androsaceus False babystars

native
Annual herb

2010 Jeffrey Hapeman

2020 R.A. Chasey

2014 James Gonsman

Leptosiphon acicularis Golden linanthus

• rare native
Annual herb

2017 Adam Chasey

2023 R.A. Chasey

2019 David Greenberger

Leptosiphon aureus Golden linanthus

• rare native
Annual herb

2017 Adam Chasey

2023 R.A. Chasey

2019 David Greenberger

Leptosiphon aureus ssp. aureus Golden linanthus

• rare native
Annual herb

2017 Adam Chasey

2023 R.A. Chasey

2019 David Greenberger

Leptosiphon aureus ssp. decorus Golden linanthus

• rare native
Annual herb

2017 Adam Chasey

2023 R.A. Chasey

2019 David Greenberger

Linanthus aureus Golden linanthus

• rare native
Annual herb

2017 Adam Chasey

2023 R.A. Chasey

2019 David Greenberger

Leptosiphon bicolor True babystars

native
Annual herb

2008 Steve Matson

Linanthus bicolor True babystars

native
Annual herb

2008 Steve Matson

Leptosiphon bolanderi Bolander's linanthus

native
Annual herb

2019 David Greenberger

2022 Dana York

2019 David Greenberger

Linanthus bolanderi Bolander's linanthus

native
Annual herb

2019 David Greenberger

2022 Dana York

2019 David Greenberger

Leptosiphon breviculus Mojave linanthus

native
Annual herb

2019 Diane Etchison

2019 Marisa Persaud

2019 Diane Etchison

Linanthus aureus ssp. aureus

native
Perennial herb

2022 Steve Matson

2023 Mike Russler

Linanthus aureus ssp. decorus

native
Perennial herb

2016 James Gonsman

2005 Keir Morse

Leptosiphon ciliatus Whiskerbrush

native
Annual herb

2020 Bob Sweatt

2018 Glenn Fine

Linanthus ciliatus Whiskerbrush

native
Annual herb

2020 Bob Sweatt

2018 Glenn Fine

Leptosiphon croceus Coast yellow leptosiphon

• rare native
Annual herb

2017 Toni Corelli

2019 Ken Hickman

Leptosiphon filipes Thread linanthus

native
Annual herb

2020 Matt Berger

Linanthus filipes Thread linanthus

native
Annual herb

2020 Matt Berger

Leptosiphon floribundus ssp. floribundus Many flowered linanthus

native
Perennial herb

Leptosiphon floribundus ssp. floribundus

2020 Ron Vanderhoff

2021 Arlee Montalvo

2022 Ron Vanderhoff

Leptosiphon floribundus ssp. glaber Smooth many flowered linanthus

native
Perennial herb

2014 Ron Vanderhoff

2005 Aaron Schusteff

Leptosiphon floribundus ssp. hallii Santa rosa mountains leptosiphon

• rare native
Perennial herb

2020 Matt Berger

Leptosiphon grandiflorus Large flowered leptosiphon

• rare native
Annual herb

2023 Suzanne L. Weakley

2017 David Greenberger

2022 Ron Vanderhoff

Leptosiphon grandiflorus ssp. dylanae Large flowered leptosiphon

• rare native
Annual herb

2023 Suzanne L. Weakley

2017 David Greenberger

2022 Ron Vanderhoff

Linanthus grandiflorus Large flowered leptosiphon

• rare native
Annual herb

2023 Suzanne L. Weakley

2017 David Greenberger

2022 Ron Vanderhoff

Leptosiphon harknessii Harkness' flaxflower

native
Annual herb

2020 Bob Sweatt

2017 Cynthia Powell

Linanthus harknessii Harkness' flaxflower

native
Annual herb

2020 Bob Sweatt

2017 Cynthia Powell

Leptosiphon jepsonii Jepson's leptosiphon

• rare native
Annual herb

2021 Zoya Akulova

2013 James Gonsman

2023 R.A. Chasey

Leptosiphon latisectus Broad lobed leptosiphon

• rare native
Annual herb

2021 Dana York

2020 Joey Santore

2021 Dana York

Leptosiphon lemmonii Lemmon's linanthus

native
Annual herb

2019 Matt Berger

2017 Keir Morse

2014 Keir Morse

Leptosiphon liniflorus Narrowflower flaxflower

native
Annual herb

2017 Aaron Echols

2022 Ron Vanderhoff

2023 Diana Wahl

Leptosiphon minimus True babystars

native
Annual herb

2016 Keir Morse

Leptosiphon montanus Mustang clover

native
Annual herb

2018 Steve Matson

Linanthus montanus Mustang clover

native
Annual herb

2018 Steve Matson

Leptosiphon nudatus Tehachapi linanthus

native
Annual herb

2023 Ryan O'Dell

2003 Yulan Tong

2023 Ryan O'Dell

Leptosiphon nuttallii Nuttall's linanthus

native
Perennial herb

2022 Alaine Arslan

2020 Bob Sweatt

Linanthus nuttallii Nuttall's linanthus

native
Perennial herb

2022 Alaine Arslan

2020 Bob Sweatt

Leptosiphon nuttallii ssp. howellii Mt. tedoc leptosiphon

• rare native
Perennial herb

2019 Steve Matson

Leptosiphon nuttallii ssp. nuttallii Nuttall's linanthus

native
Perennial herb

2023 Steve Conger

2019 Richard Spjut

Leptosiphon nuttallii ssp. pubescens Nuttall's linanthus

native
Perennial herb

2022 Charles Russell

2013 Steve Matson

Linanthus nuttallii ssp. pubescens Nuttall's linanthus

native
Perennial herb

2022 Charles Russell

2013 Steve Matson

Leptosiphon oblanceolatus Sierra nevada leptosiphon

• rare native
Annual herb

2019 Matt Berger

2022 Eric Koberle

Leptosiphon pachyphyllus Sierra linanthus

native
Perennial herb

2006 Steve Matson

2008 Steve Matson

2006 Steve Matson

Linanthastrum pachyphyllum Sierra linanthus

native
Perennial herb

2006 Steve Matson

2008 Steve Matson

2006 Steve Matson

Linanthus pachyphyllus Sierra linanthus

native
Perennial herb

2006 Steve Matson

2008 Steve Matson

2006 Steve Matson

Leptosiphon parviflorus Variable linanthus

native
Annual herb

2008 Keir Morse

Linanthus parviflorus Variable linanthus

native
Annual herb

2008 Keir Morse

Leptosiphon pygmaeus ssp. continentalis Pygmy linanthus

native
Annual herb

2019 Steve Matson

Leptosiphon pygmaeus ssp. pygmaeus Pygmy leptosiphon

• rare native
Annual herb

2008 Kim M. Klementowski

Leptosiphon rattanii Rattan's leptosiphon

• rare native
Annual herb

2020 Tim Miller

2009 Aaron Schusteff

Leptosiphon rosaceus Rose leptosiphon

• rare native
Annual herb

2019 Ken Hickman

2014 Neal Kramer

Leptosiphon septentrionalis Northern linanthus

native
Annual herb

2019 Steve Matson

Leptosiphon serrulatus Madera leptosiphon

• rare native
Annual herb

2008 Chris Winchell

Leptospermum laevigatum Australian tea tree

• invasive non-native
Shrub

2018 Emma Havstad

2018 Michael Chasse

2019 Patrick Furtado

Leptospermum scoparium Broom teatree

non-native
Shrub

2023 Cynthia Powell

2019 Randy Huey

2023 Cynthia Powell

Coreopsis bigelovii Bigelow coreopsis

native
Annual herb

2022 Mike Russler

2020 John L. Thompson

2020 Matt Berger

Leptosyne bigelovii Bigelow coreopsis

native
Annual herb

2022 Mike Russler

2020 John L. Thompson

2020 Matt Berger

Coreopsis californica var. californica California coreopsis

native
Annual herb

2021 Ron Vanderhoff

2019 Diane Etchison

Leptosyne californica California coreopsis

native
Annual herb

2021 Ron Vanderhoff

2019 Diane Etchison

Coreopsis calliopsidea Leafy stemmed coreopsis

native
Annual herb

2016 Steve Matson

Leptosyne calliopsidea Leafy stemmed coreopsis

native
Annual herb

2016 Steve Matson

Leptosyne douglasii Douglas' coreopsis

native
Annual herb

2020 Manzanita Dictionary

Coreopsis gigantea Giant coreopsis

native
Shrub

2020 David Greenberger

2017 David Wolfson

2006 Steve Matson

Leptosyne gigantea Giant coreopsis

native
Shrub

2020 David Greenberger

2017 David Wolfson

2006 Steve Matson

Leptosyne hamiltonii Mt. hamilton coreopsis

• rare native
Annual herb

2022 William Lundgren

2022 Helen Hancock

2022 Mike Russler

Leptosyne maritima Sea dahlia

• rare native
Perennial herb

2023 Scott Henry

2019 Ron Vanderhoff

Coreopsis stillmanii Stillman's coreopsis

native
Annual herb

2020 Matt Berger

Leptosyne stillmanii Stillman's coreopsis

native
Annual herb

2020 Matt Berger

Lessingia arachnoidea Crystal springs lessingia

• rare native
Annual herb

2019 Joerg Lohse

2019 Patrick Furtado

2019 Joerg Lohse

Lessingia germanorum San francisco lessingia

• rare native
Annual herb

2021 Charles Russell

2019 Ken Hickman

Lessingia glandulifera Valley lessingia, Valley vinegar weed

native
Annual herb

2022 Steve Matson

Lessingia glandulifera var. glandulifera Sticky lessingia, Valley lessingia

native
Annual herb

Lessingia glandulifera var. glandulifera

2021 R.A. Chasey

2015 Steve Matson

2021 Mike Russler

Lessingia lemmonii var. ramulosissima Sticky lessingia, Valley lessingia

native
Annual herb

2021 R.A. Chasey

2015 Steve Matson

2021 Mike Russler

Lessingia glandulifera var. peirsonii Peirson's lessingia

native
Annual herb

2015 Dana York

2009 Neal Kramer

Lessingia glandulifera var. tomentosa Warner springs lessingia

• rare native
Annual herb

2022 Eric Koberle

Lessingia hololeuca Woolly headed lessingia, Woollyhead lessingia

• rare native
Annual herb

2023 R.A. Chasey

2020 Ken Hickman

Lessingia leptoclada Sierra lessingia

native
Annual herb

2019 R.A. Chasey

2021 Mike Russler

2019 R.A. Chasey

Lessingia micradenia var. glabrata Smooth lessingia

• rare native
Annual herb

2019 Ken Hickman

2020 R.A. Chasey

2019 Julia King

Lessingia micradenia var. micradenia Mt. tamalpais lessingia

• rare native
Annual herb

2019 David Greenberger

2017 Scott Yarger

2023 R.A. Chasey

Lessingia nana Dwarf lessingia, Little lessingia

native
Annual herb

2021 David popp

2016 Cristian Singer

2020 Dustin Brown

Lessingia nemaclada Slender stemmed lessingia, Slenderstem lessingia, Thread stem lessingia

native
Annual herb

2021 Mike Russler

Lessingia pectinata var. pectinata Valley lessingia

native
Annual herb

2019 Mary Conway

2012 Terrence Gosliner

2022 R.A. Chasey

Lessingia pectinata var. tenuipes Sticky lessingia

native
Annual herb

2021 Richard Spjut

2022 Ken-ichi Ueda

Lessingia ramulosa Sonoma lessingia

native
Annual herb

2013 BOB CASE

2020 Paul Aigner

2021 R.A. Chasey

Lessingia tenuis Spring lessingia

• rare native
Annual herb

2022 Mike Russler

Lessingia virgata Virgate lessingia, Wand lessingia

native
Annual herb

2021 Art Clark

2021 David popp

2020 David popp

Leucanthemum maximum Max chrysanthemum, Shasta daisy

non-native
Annual, Perennial herb

2019 Marisa Persaud

2012 BOB CASE

Chrysanthemum leucanthemum Oxe eye daisy, Oxeye daisy

• invasive non-native
Perennial herb

2020 Kim Cabrera

2019 Julian Geoghegan

2017 James Gonsman

Leucanthemum vulgare Oxe eye daisy, Oxeye daisy

• invasive non-native
Perennial herb

2020 Kim Cabrera

2019 Julian Geoghegan

2017 James Gonsman

Leucocrinum montanum Common starlily, Sand lily

native
Perennial herb

2020 Bob Sweatt

2021 Dana York

Leucojum aestivum Summer snowflake

non-native
Perennial herb

2018 Alice Cummings

2020 R.A. Chasey

2012 Ramona Robison

Leucojum vernum Spring snowflake

non-native
Perennial herb

Leucophyllum frutescens Texas barometer bush

non-native
Shrub

2011 Debra L. Cook

2010 Neal Kramer

Arida arizonica Silver lake daisy

native
Annual herb

2008 Steve Matson

Leucosyris arida Silver lake daisy

native
Annual herb

2008 Steve Matson

Arida carnosa Shrubby alkali aster

native
Shrub

2016 Steve Matson

2012 Steve Matson

2015 Steve Matson

Leucosyris carnosa Shrubby alkali aster

native
Shrub

2016 Steve Matson

2012 Steve Matson

2015 Steve Matson

Leucothoe davisiae Sierra laurel

native
Shrub

2020 Steve Matson

Lewisia brachycalyx Short sepaled lewisia, Shortsepal lewisia

• rare native
Perennial herb

2023 Ryan O'Dell

Lewisia cantelovii Cantelow's lewisia

• rare native
Perennial herb

2019 Matt Berger

Lewisia columbiana Columbia lewisia, Columbian lewisia

native
Perennial herb

2008 Matt Below

2007 Matt Below

Lewisia congdonii Congdon's lewisia

• rare native
Perennial herb

2018 Steve Matson

Geoff Burleigh

2015 BOB CASE

Lewisia cotyledon Cliff lewisia, Siskiyou lewisia

native
Perennial herb

2021 Dee Shea Himes

2021 Steve Matson

2022 Alaine Arslan

Lewisia cotyledon ssp. carousel Cliff lewisia, Siskiyou lewisia

native
Perennial herb

2021 Dee Shea Himes

2021 Steve Matson

2022 Alaine Arslan

Lewisia cotyledon var. howelli Cliff lewisia, Siskiyou lewisia

native
Perennial herb

2021 Dee Shea Himes

2021 Steve Matson

2022 Alaine Arslan

Lewisia cotyledon var. cotyledon Cliff lewisia, Siskiyou lewisia

native
Perennial herb

2021 Dana York

2021 Steve Matson

Lewisia cotyledon var. heckneri Heckner's lewisia

• rare native
Perennial herb

2022 Steve Laymon

2023 Alaine Arslan

Lewisia cotyledon var. howellii Howell's lewisia

• rare native
Perennial herb

2016 Steve Matson

Lewisia disepala Yosemite lewisia

• rare native
Perennial herb

2021 John Doyen

2003 Dean Wm. Taylor

2021 Jacob Smith

Lewisia glandulosa Glandular lewisia, Sierra lewisia

native
Perennial herb

2008 Steve Matson

2015 Bill Thiessen

Lewisia kelloggii Kellogg's lewisia

native
Perennial herb

2020 Hannah Kang

Lewisia kelloggii ssp. hutchisonii Sierra valley lewisia

• rare native
Perennial herb

2020 Hannah Kang

2019 Matt Berger

2020 Hannah Kang

Lewisia kelloggii ssp. kelloggii Kellogg's lewisia

• rare native
Perennial herb

2017 Robert Barnard

2009 Barry Breckling

Lewisia leana Quill leaf lewisia

native
Perennial herb

2011 Steve Matson

Lewisia leeana Quill leaf lewisia

native
Perennial herb

2011 Steve Matson

Lewisia longipetala Long petaled lewisia, Truckee lewisia

• rare native
Perennial herb

2017 Adam Chasey

2011 Steve Matson

2019 John Game

Lewisia nevadensis Nevada bitter root, Nevada lewisia, Sierra lewisia

native
Perennial herb

2020 Bob Sweatt

2022 Mary Ann Machi

Lewisia pygmaea var. nevadensis Nevada bitter root, Nevada lewisia, Sierra lewisia

native
Perennial herb

2020 Bob Sweatt

2022 Mary Ann Machi

Lewisia oppositifolia Opposite leaved lewisia, Oppositeleaf lewisia

• rare native
Perennial herb

2011 John Doyen

Lewisia pygmaea Alpine lewisia, Pigmy bitter root

native
Perennial herb

2020 Bob Sweatt

2019 Bob Sweatt

2020 Bob Sweatt

Lewisia rediviva Bitter root

native
Perennial herb

2020 Matt Berger

2023 Steve Conger

2018 Mitchell Coleman

Lewisia rediviva var. minor Bitter root

native
Perennial herb

2018 Steve Matson

Lewisia rediviva var. rediviva Bitter root

native
Perennial herb

2019 Ken Hickman

2019 Matt Berger

Lewisia serrata Saw toothed lewisia, Sawtooth lewisia

• rare native
Perennial herb

2022 Camille Nowell

2015 John Doyen

Lewisia stebbinsii Stebbins' lewisia, Stebbins's lewisia

• rare native
Perennial herb

2020 Dee Shea Himes

2015 John Doyen

2017 Adam Chasey

Lewisia triphylla Three leafed lewisia, Three leaved lewisia, Threeleaf lewisia

native
Perennial herb

2020 Bob Sweatt

2022 Mike Russler

2023 Mike Russler

Leycesteria formosa Himalayan honeysuckle

non-native
Shrub

2009 Phil Pullen

Ligusticum apiifolium Celery leaved lovage, Celeryleaf licorice root, Lovage

native
Perennial herb

2017 Steve Matson

Ligusticum californicum California licorice root, California lovage

native
Perennial herb

2017 Steve Matson

Ligusticum grayi Gray's licorice root, Gray's lovage, Gray's wild lovage

native
Perennial herb

2006 Steve Matson

Ligustrum japonicum Japanese privet

non-native
Tree, Shrub

2015 Zoya Akulova

Ligustrum lucidum Glossy privet

• invasive non-native
Tree, Shrub

2021 Alex Nikolaou

2021 Ron Vanderhoff

2017 Ron Vanderhoff

Ligustrum ovalifolium California privet

non-native
Tree, Shrub

2018 Abbot Chambers

2020 Diana Wahl

2013 Ramona Robison

Ligustrum sinense Chinese privet

non-native
Tree, Shrub

2020 Julie A. Kierstead

2021 R.A. Chasey

2020 Julie A. Kierstead

Ligustrum vulgare European privet

non-native
Tree, Shrub

2018 Sarah Inman

2018 Ryan Diller

2012 Dean Taylor

Lilaeopsis masonii Mason's lilaeopsis, Mudflat quillplant

• rare native
Perennial herb

2021 Cynthia Powell

2021 John Game

Lilaeopsis occidentalis Lilaeopsis, Western grasswort, Western lilaeopsis

native
Perennial herb

2005 Doreen L. Smith

2018 Vernon Smith

Lilium bolanderi Bolander's lily

• rare native
Perennial herb (bulb)

2018 Anna Sereno

2020 Kolby Lundgren

Lilium columbianum Columbia lily, Columbian lily, Oregon lily

native
Perennial herb

2021 Mary Ann Machi

2023 Mary Ann Machi

2013 James Gonsman

Lilium humboldtii Humboldt's lily

native
Perennial herb

2019 Hannah Garcia

2022 David Strauch

2023 Bryant Baker

Lilium humboldtii ssp. humboldtii Humboldt's lily

• rare native
Perennial herb (bulb)

2021 Scott Yarger

2008 David Magney

2021 Lynn Halsted

Lilium humboldtii ssp. ocellatum Humboldt lily, Spotted humboldt's lily

• rare native
Perennial herb (bulb)

2019 Ron Vanderhoff

2020 Tom Ballinger

2019 Ron Vanderhoff

Lilium kelleyanum Kelley's lily

native
Perennial herb

2014 Steve Matson

Lilium kelloggii Kellogg's lily

• rare native
Perennial herb (bulb)

2020 Steve Conger

2016 Steve Matson

2022 Mary Ann Machi

Lilium maritimum Coast lily

• rare native
Perennial herb (bulb)

2022 Hunter Breck

2019 R.A. Chasey

2022 Mary Sue Ittner

Lilium occidentale Western lily

• rare native
Perennial herb (bulb)

2020 Jeff Bisbee

Lilium pardalinum California tiger lily, Leopard lily, Tiger lily

native
Perennial herb

2011 Steve Matson

2023 Steve Conger

Lilium pardalinum ssp. pardalinum Leopard lily

native
Perennial herb

2015 Steve Matson

Lilium pardalinum ssp. pitkinense Pitkin marsh lily

• rare native
Perennial herb (bulb)

2011 Vernon Smith

2015 Aaron Arthur

Lilium pardalinum ssp. shastense Shasta lily

native
Perennial herb

2019 Steve Matson

Lilium pardalinum ssp. vollmeri Vollmer's lily

• rare native
Perennial herb (bulb)

2022 Mary Ann Machi

2023 Mary Ann Machi

Lilium pardalinum ssp. wigginsii Wiggins' lily

• rare native
Perennial herb (bulb)

2022 Dana York

2019 Dana York

Lilium parryi Lemon lily

• rare native
Perennial herb (bulb)

2021 Maisie Borg

Lilium parvum Alpine lily, Sierra tiger lily

native
Perennial herb

2019 Timothy Boomer

2019 Cynthia Powell

Lilium rubescens Chaparral lily, Redwood lily

• rare native
Perennial herb (bulb)

2022 Mary Ann Machi

2019 george jackson

Lilium washingtonianum Washington lily

native
Perennial herb

2018 Margarita Orlova

2019 Anna Sereno

2021 Julie A. Kierstead

Lilium washingtonianum ssp. purpurascens Cascade lily, Purple flowered washington lily

• rare native
Perennial herb (bulb)

Lilium washingtonianum ssp. purpurascens

2019 Anna Sereno

2021 Mary Ann Machi

Lilium washingtonianum ssp. washingtonianum Typical washington lily

native
Perennial herb

Lilium washingtonianum ssp. washingtonianum

2019 David Greenberger

2006 Richard Spjut

2019 Matt Berger

Limnanthes alba White meadowfoam

native
Annual herb

2021 Mike Russler

2021 David popp

2021 Mike Russler

Limnanthes alba ssp. alba Typical white meadowfoam

native
Annual herb

2021 Mike Russler

2021 R.A. Chasey

Limnanthes alba ssp. parishii Parish's meadowfoam

• rare native
Annual herb

Roxanne Bittman and CNPS

Limnanthes alba ssp. versicolor White meadowfoam

native
Annual herb

2021 David popp

2019 Julie Kierstead Nelson

2017 David Greenberger

Limnanthes bakeri Baker's meadowfoam

• rare native
Annual herb

2020 Ross Wilming

2018 Ross Wilming

Limnanthes douglasii Common meadowfoam, Douglas' meadowfoam

native
Annual herb

2021 Alaine Arslan

2021 Jamie Spielmann

2021 Suzanne L. Weakley

Limnanthes douglasii ssp. douglasii Douglas' meadowfoam

native
Annual herb

2019 Woody Elliott

2019 Zoya Akulova

2019 Hunter Breck

Limnanthes douglasii ssp. nivea Snow white meadowfoam

native
Annual herb

2018 Evan Johnson

2019 Cynthia Powell

Limnanthes douglasii var. nivea Snow white meadowfoam

native
Annual herb

2018 Evan Johnson

2019 Cynthia Powell

Limnanthes douglasii ssp. ornduffii Ornduff's meadowfoam

• rare native
Annual herb

2009 Toni Corelli

2019 Adam Chasey

Limnanthes douglasii ssp. rosea Rosy douglas' meadowfoam

native
Annual herb

2020 David popp

2020 Matt Berger

2021 Alaine Arslan

Limnanthes douglasii ssp. striata Foothill meadowfoam

native
Annual herb

2015 BOB CASE

2009 Barry Breckling

2021 Anne Junge

Limnanthes striata Foothill meadowfoam

native
Annual herb

2015 BOB CASE

2009 Barry Breckling

2021 Anne Junge

Limnanthes douglasii ssp. sulphurea Douglas' meadowfoam, Meadow foam, Point Reyes meadowfoam

• rare native
Annual herb

2024 John Rawlings

2018 Ann Elliott

Limnanthes floccosa ssp. pumila Woolly meadowfoam

native
Annual herb

2021 David popp

2021 Donald Burk

2023 Donald Burk

Limnanthes floccosa ssp. bellingeriana Bellinger's meadowfoam, Woolly meadowfoam

• rare native
Annual herb

2013 Scot Loring

1988 Dean Wm. Taylor

Limnanthes floccosa ssp. californica Butte county meadowfoam, California meadowfoam

• rare native
Annual herb

2021 David popp

2019 Woody Elliott

2018 Ann Elliott

Limnanthes floccosa ssp. floccosa Woolly meadowfoam

• rare native
Annual herb

2021 David popp

2021 Donald Burk

2023 Donald Burk

Limnanthes macounii Macoun's meadowfoam

non-native
Annual herb

2010 Neal Kramer

Limnanthes montana Mountain meadowfoam

native
Annual herb

2015 Mary Merriman

2021 Mike Russler

Limnanthes vinculans Sebastopol meadowfoam

• rare native
Annual herb

2023 Austin keene

Limnobium spongia American spongeplant

• invasive non-native
Perennial herb

2021 Jutta Burger

2022 Donald Burk

2021 Jutta Burger

Limnophila sessiliflora Asian marshweed

non-native
Perennial herb

Limonium binervosum Rock sea lavender

non-native
Perennial herb

2015 MCOSD Restoration Crew

2015 Pete Frye

Limonium californicum California sealavender, Marsh rosemary, Sea lavender

native
Perennial herb

2018 Saskia Raether

2010 Jorg Fleige & Mimi Fleige

2017 MCOSD EDRR

Limonium duriusculum European sea lavender

• invasive non-native
Perennial herb

2016 Ron Vanderhoff

2019 Amanda Swanson

Limonium perezii Canarian sea lavender, Perez's sealavender

non-native
Perennial herb

2017 B.J. Dion

2023 Ron Vanderhoff

Limonium ramosissimum Algerian sealavender

non-native
Perennial herb

2017 Ron Vanderhoff

2015 Ron Vanderhoff

2018 Ron Vanderhoff L. durusculum LEFT. L. ramosissimum RIGHT.

Limonium sinuatum Statice, Wavyleaf sealavender

non-native
Perennial herb

2019 Ron Vanderhoff

2017 David Wolfson

2019 Ron Vanderhoff

Limonium sventenii

non-native
Perennial herb

2021 Ron Vanderhoff

Limosella acaulis Broad leaved mudwort, Owyhee mudwort, Southern mudwort

native
Annual herb

2020 Steve Matson

2021 R.A. Chasey

Limosella aquatica Northern mudwort, Water mudwort

native
Annual herb (aquatic)

2020 Bob Sweatt

2005 Steve Matson

Limosella australis Welsh mudwort

• rare native
Perennial herb

2022 Michael L. Uhler

2008 Louis-M. Landry

Linanthus arenicola Sand linanthus, Sanddune linanthus

native
Annual herb

2020 Matt Berger

2011 Steve Matson

Linanthus bellus Desert beauty, Desertbeauty

• rare native
Annual herb

2019 Kim Cabrera

Linanthus bernardinus Pioneertown linanthus

• rare native
Annual herb

2013 Duncan S. Bell

Linanthus bigelovii Bigelow's linanthus

native
Annual herb

2006 James M. Andre

2011 Jean Pawek

Linanthus californicus Prickly phlox

native
Shrub

2018 Ron Vanderhoff

2020 Matt Berger

2019 Diane Etchison

Gilia campanulata Bellshape gilia

native
Annual herb

2005 Steve Matson

2020 Matt Berger

2005 Steve Matson

Linanthus campanulatus Bellshape gilia

native
Annual herb

2005 Steve Matson

2020 Matt Berger

2005 Steve Matson

Linanthus concinnus San gabriel linanthus

• rare native
Annual herb

2022 Don M. Davis

2019 Matt Berger

Linanthus demissus Desert linanthus, Desertsnow

native
Annual herb

2019 Don M. Davis

2010 Steve Matson

2019 Matt Berger

Linanthus dianthiflorus Fringed linanthus

native
Annual herb

2020 David Greenberger

2017 Diane Etchison

2023 Ron Vanderhoff

Linanthus dichotomus Evening snow, Eveningsnow

native
Annual herb

2019 Jacob Smith

Linanthus dichotomus ssp. dichotomus Evening snow

native
Annual herb

2019 Jacob Smith

2008 Steve Matson

2021 Mike Russler

Linanthus dichotomus ssp. meridianus Evening snow

native
Annual herb

2021 Charles Russell

2020 Ken Hickman

Linanthus filiformis Yellow gilia

native
Annual herb

2017 Steve Matson

2011 Steve Matson

2019 Matt Berger

Linanthus inyoensis Inyo gilia

native
Annual herb

2022 Steve Matson

2010 Steve Matson

2019 Matt Berger

Linanthus jaegeri San jacinto linanthus

• rare native
Perennial herb

2019 Matt Berger

Linanthus jonesii Jones linanthus, Jones' linanthus

native
Annual herb

2016 Steve Matson

2010 John Game

2010 Steve Matson

Linanthus killipii Baldwin lake linanthus

• rare native
Annual herb

2019 Matt Berger

Linanthus maculatus Little san bernardino mtns. linanthus

native
Annual herb

2023 Matt Berger

2023 Eric Koberle

Linanthus maculatus ssp. emaculatus Jacumba Mountains linanthus

• rare native
Annual herb

2023 Eric Koberle

Linanthus maculatus ssp. maculatus Little San Bernardino Mtns. linanthus

• rare native
Annual herb

2023 Matt Berger

2024 Lynn Sweet

Linanthus orcuttii Orcutt's linanthus

• rare native
Annual herb

2019 Matt Berger

Linanthus parryae Parry's linanthus, Sand blossoms, Sandblossoms

native
Annual herb

2022 Steve Matson

2015 Steve Matson

2011 Steve Matson

Leptodactylon pungens Granite prickly phlox

native
Shrub

2021 Steve Matson

2023 Mike Russler

Linanthus pungens Granite prickly phlox

native
Shrub

2021 Steve Matson

2023 Mike Russler

Linaria bipartita Clovenlip toadflax, Split lip toadflax

non-native
Annual herb

1995 Saint Mary's College of California

Linaria dalmatica Dalmatian toadflax

non-native
Perennial herb

2022 Jonathan Widdicombe

2005 Louis-M. Landry

2022 Jonathan Widdicombe

Linaria dalmatica ssp. dalmatica Dalmatian toadflax

• invasive non-native
Perennial herb

2021 Dennis Diaz

2016 Phil Zortman

2019 Caleb Cole

Linaria genistifolia ssp. dalmatica Dalmatian toadflax

• invasive non-native
Perennial herb

2021 Dennis Diaz

2016 Phil Zortman

2019 Caleb Cole

Linaria genistifolia Broomleaf toadflax

non-native
Perennial herb

2010 Ron Wolf

2006 Steven Thorsted

Linaria maroccana Moroccan toad flax, Moroccan toadflax

non-native
Annual herb

2017 John L. Thompson

2020 R.A. Chasey

2021 Robin Carter

Linaria reticulata Pine needle toad flax, Pineneedle toadflax

non-native
Annual herb

2007 Louis-M. Landry

2022 Zoya Akulova

Linaria purpurea Purple toad flax, Purple toadflax

non-native
Perennial herb

2014 Zoya Akulova

Linaria vulgaris Butter and eggs

• invasive non-native
Perennial herb

2020 Bob Sweatt

2019 Bob Sweatt

Lindernia dubia Yellowseed false pimpernel

native
Annual herb

LINDERNIACEAE

2020 Ron Vanderhoff

2017 Ron Vanderhoff

2020 Ron Vanderhoff

Linnaea borealis Twinflower

native
Perennial herb

LINNAEACEAE

2015 Steve Matson

Linnaea borealis ssp. longiflora Twinflower

native
Perennial herb

LINNAEACEAE

2015 Steve Matson

Linnaea borealis var. longiflora Twin flower

native
Perennial herb

LINNAEACEAE

2020 R.A. Chasey

2008 Keir Morse

2009 Sierra Pacific Industries

Linum bienne Narrow leaved flax, Pale flax, Small flowered flax

non-native
Annual herb

2019 Ken Lunders

2021 Cameron Chabre

2018 Cynthia Powell

Linum grandiflorum Flowering flax, Garden flax

non-native
Annual herb

2009 Chris Hendrickson

2020 Bill Haley

Linum lewisii Blue flax, Lewis' flax, Prairie flax

native
Perennial herb

2019 David Greenberger

2020 stephen rosenthal

2023 Mike Russler

Linum lewisii var. alpicola Lewis' flax, Prairie flax

native
Perennial herb

2023 Mike Russler

Linum lewisii var. lewisii Lewis' flax, Prairie flax

native
Perennial herb

2023 Mike Russler

Linum neomexicanum New mexico yellow flax

non-native
Perennial herb

Linum perenne Blue flax

non-native
Perennial herb

2015 Cynthia Powell

2021 Elliot Gunnison

Linum puberulum Hairy flax, Plains flax

• rare native
Annual herb

2022 Eric Engles

2009 Christopher L. Christie

2012 Keir Morse

Linum trigynum French flax

non-native
Annual herb

2013 Peter Warner

2022 R.A. Chasey

Linum usitatissimum Common flax

non-native
Annual herb

2019 Barbara Boethling

Lipocarpha aristulata Awned halfchaff sedge, Pointed hemicarpha

native
Annual grasslike herb

2020 Belinda Lo

2004 Steve Matson

Lipocarpha micrantha Small flowered hemicarpha, Smallflower halfchaff sedge

native
Annual grasslike herb

2020 Ron Vanderhoff

2004 Steve Matson

Lipocarpha occidentalis Western halfchaff sedge, Western hemicarpha

native
Annual grasslike herb

2004 Steve Matson

Liquidambar styraciflua Sweetgum

non-native
Tree

HAMAMELIDACEAE

2020 Ramona Robison

2018 Ron Vanderhoff

Liriodendron tulipifera Tuliptree

non-native
Tree

MAGNOLIACEAE

2008 Gary W. Sargent

2005 Louis-M. Landry

Listera banksiana Northwest twayblade

native
Perennial herb

2019 Matt Berger

2019 Kolby Lundgren

Listera caurina Northwest twayblade

native
Perennial herb

2019 Matt Berger

2019 Kolby Lundgren

Listera convallarioides Broad leaved tway blade, Broad lipped twayblade, Broadlipped twayblade

native
Perennial herb

2011 Steve Matson

Listera cordata Heart leaved twayblade, Heartleaf twayblade

• rare native
Perennial herb

2021 Timothy Boomer

2022 Steve Conger

Listera cordata var. nephrophylla Heart leaved twayblade, Heartleaf twayblade

• rare native
Perennial herb

2021 Timothy Boomer

2022 Steve Conger

Lithophragma affine Common woodland star, San francisco woodland star, Woodland star

native
Perennial herb

2018 Steve Matson

Lithophragma bolanderi Bolander's woodland star, Hillstar, Sierra star

native
Perennial herb

2009 Bob Case

2019 David popp

2015 BOB CASE

Lithophragma campanulatum Siskiyou mountain woodland star

native
Perennial herb

2017 Steve Matson

2008 Steve Matson

2017 Steve Matson

Lithophragma cymbalaria Mission star, Mission woodland star

native
Perennial herb

2020 Bryant Baker

2020 David Greenberger

2020 Bryant Baker

Lithophragma glabrum Bulbed woodland star, Bulbous woodland star, Bulbous woodlandstar

native
Perennial herb

2022 Dana York

2005 Steve Matson

2020 Bob Sweatt

Lithophragma heterophyllum Hill star, Hillside woodland star

native
Perennial herb

2019 David Greenberger

2019 David Magney

2018 Ken Lunders

Lithophragma parviflorum Pink woodland star, Prairie star, Smallflower woodland star

native
Perennial herb

2019 Gary McDonald

2022 Catherine Chang

2019 Bob Sweatt

Lithophragma parviflorum var. trifoliata Pink woodland star, Prairie star, Smallflower woodland star

native
Perennial herb

Lithophragma parviflorum var. trifoliata

2019 Gary McDonald

2022 Catherine Chang

2019 Bob Sweatt

Lithophragma parviflorum var. parviflorum Pink woodland star, Smallflower woodland star

native
Perennial herb

Lithophragma parviflorum var. parviflorum

2008 Steve Matson

2019 Gary McDonald

2013 Jean Pawek

Lithophragma parviflorum var. trifoliatum Prairie woodland star

native
Perennial herb

Lithophragma parviflorum var. trifoliatum

2021 David popp

2006 George W. Hartwell

2010 Rebecca Wenk

Lithophragma tenellum Slender woodland star, Slender woodlandstar, Woodland star

native
Perennial herb

2018 Mary Conway

2019 Adam Chasey

Buglossoides arvensis Gromwell

non-native
Annual herb

2022 Joanna Clines

2023 Donald Burk

2009 Trent M. Draper

Lithospermum arvense Gromwell

non-native
Annual herb

2022 Joanna Clines

2023 Donald Burk

2009 Trent M. Draper

Lithospermum californicum California gromwell, California stoneseed, Gromwell

native
Perennial herb

2019 David Greenberger

2022 Ryan O'Dell

2018 David popp

Lithospermum canescens Hoary puccoon

non-native
Perennial herb

Lithospermum incisum Narrowleaf gromwell, Narrowleaf stoneseed

• rare native
Perennial herb

2005 James M. Andre

2010 Lee Dittmann

Lithospermum ruderale Columbia puccoon, Western gromwell, Western stoneseed

native
Perennial herb

2008 Steve Matson

Lobelia cardinalis Cardinalflower

native
Perennial herb

2020 Fred Melgert / Carla Hoegen

2012 John Rusk

2020 Fred Melgert / Carla Hoegen

Lobelia splendens Cardinalflower

native
Perennial herb

2020 Fred Melgert / Carla Hoegen

2012 John Rusk

2020 Fred Melgert / Carla Hoegen

Lobelia cardinalis var. pseudosplendens Cardinal flower, Scarlet lobelia

native
Perennial herb

2020 Fred Melgert / Carla Hoegen

2017 Fred Melgert / Carla Hoegen

Lobelia dunnii var. serrata Dunn's lobelia

native
Perennial herb

2019 Ron Vanderhoff

2013 Ron Vanderhoff

2018 Ron Vanderhoff

Lobelia erinus Edging lobelia

non-native
Annual herb

2018 David Greenberger

2019 Chasey

2017 James Bailey

Lobelia laxiflora Sierra madre lobelia

non-native
Perennial herb

Lobularia maritima Sweet alyssum

• invasive non-native
Perennial herb

2016 Michael Mitchell

2019 Patrick Furtado

Loeflingia squarrosa Spreading loeflingia, Spreading pygmyleaf

native
Annual herb

2010 Steve Matson

Loeflingia squarrosa var. artemisiarum Sagebrush loeflingia

• rare native
Annual herb

2010 Jim Morefield

2016 Jim Morefield

Ipomopsis depressa Depressed ipomopsis

• rare native
Annual herb

2019 Steve Matson

2011 Steve Matson

Loeseliastrum depressum Depressed ipomopsis

• rare native
Annual herb

2019 Steve Matson

2011 Steve Matson

Langloisia matthewsii Desert calico

native
Annual herb

2023 Mike Russler

2017 Bonnie Nickel

2022 Bob Steele

Loeseliastrum matthewsii Desert calico

native
Annual herb

2023 Mike Russler

2017 Bonnie Nickel

2022 Bob Steele

Loeseliastrum schottii Schott gilia, Schott's calico

native
Annual herb

2020 David Greenberger

2024 Bob Steele

2019 Don M. Davis

Logfia arizonica Arizona cottonrose

native
Annual herb

2010 Gary A. Monroe

2010 James Morefield

Logfia depressa Dwarf cottonrose

native
Annual herb

2023 Steve Matson

2022 Steve Matson

Filago californica California cottonrose

native
Annual herb

2019 Steve Matson

Logfia filaginoides California cottonrose

native
Annual herb

2019 Steve Matson

Filago gallica Narrowleaf cottonrose

non-native
Annual herb

2017 Barbara Boethling

2023 Ron Vanderhoff

Logfia gallica Narrowleaf cottonrose

non-native
Annual herb

2017 Barbara Boethling

2023 Ron Vanderhoff

Lomatium austiniae Plummer's lomatium

native
Perennial herb

2009 Gary A. Monroe

2012 Gary A. Monroe

Lomatium donnellii Plummer's lomatium

native
Perennial herb

2009 Gary A. Monroe

2012 Gary A. Monroe

Lomatium plummerae Plummer's lomatium

native
Perennial herb

2009 Gary A. Monroe

2012 Gary A. Monroe

Lomatium bicolor var. bicolor Wasatch desertparsley

native
Perennial herb

2015 Trent M. Draper

2015 Sierra Pacific Industries

Lomatium bicolor var. leptocarpum Slender fruited lomatium, Wasatch desertparsley

native
Perennial herb

2013 Steve Matson

Lomatium californicum California lomatium, Celery weed

native
Perennial herb

2022 Richard Sullivan

2021 Julie A. Kierstead

2020 R.A. Chasey

Lomatium canbyi Canby's biscuitroot, Canby's lomatium

• rare native
Perennial herb

2011 Mary Winter

2002 Gary A. Monroe

Lomatium caruifolium Alkali desertparsley, Alkali parsnip, Caraway leaved lomatium

native
Perennial herb

2014 Steve Matson

2023 R.A. Chasey

Lomatium caruifolium var. caruifolium Alkali desertparsley, Caraway leaved lomatium

native
Perennial herb

2014 Steve Matson

2022 Dianne Lake

2014 Steve Matson

Lomatium caruifolium var. denticulatum Alkali desertparsley, Caraway leaved lomatium

native
Perennial herb

2023 Mike Russler

2023 David popp

Lomatium ciliolatum Yolla bolly biscuitroot, Yolla bolly lomatium

native
Perennial herb

2011 Steve Matson

2019 John Doyen

Lomatium congdonii Congdon's lomatium, Mariposa desertparsley

• rare native
Perennial herb

2016 BOB CASE

2020 Matt Berger

2022 BOB CASE

Lomatium dasycarpum Hog fennel, Lace parsnip, Woolly fruited lomatium

native
Perennial herb

2016 Steve Matson

2021 Paul Aigner

Lomatium dasycarpum ssp. dasycarpum Woolly fruited lomatium, Woollyfruit desertparsley

native
Perennial herb

2016 Steve Matson

Lomatium dasycarpum ssp. tomentosum Woolly fruited lomatium, Woollyfruit desertparsley

native
Perennial herb

2023 Alaine Arslan

2019 Julie Kierstead Nelson

Lomatium dissectum Fern leaved lomatium, Fernleaf biscuitroot

native
Perennial herb

2020 Bob Sweatt

2019 Bob Sweatt

2020 Bob Sweatt

Lomatium dissectum var. dissectum Fern leaved lomatium, Fernleaf biscuitroot

native
Perennial herb

2007 Keir Morse

Lomatium engelmannii Engelmann's desertparsley, Engelmann's lomatium

• rare native
Perennial herb

2018 Matt Berger

2006 Dean Wm. Taylor, Ph.D.

2019 Julie A. Kierstead

Lomatium foeniculaceum Desert biscuitroot, Fennel leaved lomatium

native
Perennial herb

2019 Matt Berger

2023 richard mcneill

Lomatium foeniculaceum ssp. fimbriatum Desert biscuitroot, Fennel leaved lomatium

native
Perennial herb

2019 Matt Berger

2020 Matt Berger

Lomatium foeniculaceum ssp. inyoense Inyo biscuitroot, Inyo lomatium

• rare native
Perennial herb

2009 Steve Matson

Lomatium foeniculaceum ssp. macdougalii Macdougal's lomatium

• rare native
Perennial herb

2023 Ryan O'Dell

2011 Robert Sivinski

2010 Bill Harnach

Orogenia fusiformis California indian potato

native
Perennial herb

2005 Steve Matson

2019 Bob Sweatt

Lomatium gormanii Gorman's biscuitroot

non-native
Perennial herb

Lomatium grayi Gray's lomatium

• rare native
Perennial herb

2008 Trent M. Draper

Lomatium hallii Hall's lomatium

native
Perennial herb

2009 Chris Wagner

2008 Keir Morse

Lomatium hendersonii Henderson's biscuitroot, Henderson's lomatium

• rare native
Perennial herb

2022 Dolly B. Chapman

2007 Norman Jensen

Lomatium hooveri Hoover's lomatium

• rare native
Perennial herb

2015 Steve Matson

2017 Steve Matson

Lomatium howellii Howell's biscuitroot, Howell's lomatium

• rare native
Perennial herb

2008 Keir Morse

2018 Claire Brown

Lomatium insulare San Nicholas biscuitroot, San Nicolas island lomatium

• rare native
Perennial herb

2011 Vince Scheidt

2016 Adam Searcy

Lomatium lucidum Shiny biscuitroot, Shiny lomatium

native
Perennial herb

2019 Diane Etchison

2015 Diane Etchison

Lomatium macrocarpum Bigseed biscuitroot, Large fruited lomatium

native
Perennial herb

2018 Gary McDonald

2022 John Rawlings

2013 Gary McDonald

Lomatium marginatum Butte desertparsley, Hartweg's lomatium, Tall hog fennel

native
Perennial herb

2022 R.A. Chasey

2023 R.A. Chasey

2022 Cynthia Powell

Lomatium marginatum var. marginatum Butte desertparsley, Hartweg's lomatium

native
Perennial herb

2019 Matt Berger

2012 Aaron Schusteff

2021 David popp

Lomatium marginatum var. purpureum Butte desertparsley, Jepson's lomatium

native
Perennial herb

2022 R.A. Chasey

2021 R.A. Chasey

2007 Jorg & Mimi Fleige

Lomatium martindalei Cascade desertparsley, Coast range lomatium

• rare native
Perennial herb

2015 John Doyen

2010 Keir Morse

2007 Matt Below

Lomatium mohavense Mohave wild parsely, Mojave desertparsley, Mojave lomatium

native
Perennial herb

2020 Matt Berger

2023 richard mcneill

2008 Steve Matson

Lomatium dissectum var. eatonii Fern leaved lomatium

native
Perennial herb

2008 Trent M. Draper

2013 Barry Breckling

2014 John Doyen

Lomatium dissectum var. multifidum Fern leaved lomatium

native
Perennial herb

2008 Trent M. Draper

2013 Barry Breckling

2014 John Doyen

Lomatium nevadense Nevada biscuitroot, Nevada lomatium

native
Perennial herb

2021 Donald Burk

2021 R.A. Chasey

2019 Matt Berger

Lomatium nevadense var. nevadense Nevada biscuitroot, Nevada lomatium

native
Perennial herb

2021 Donald Burk

2005 Steve Matson

Lomatium nevadense var. parishii Parish's biscuitroot, Parish's lomatium

native
Perennial herb

2023 richard mcneill

2021 R.A. Chasey

2023 richard mcneill

Lomatium nudicaule Barestem biscuitroot, Pestle lomatium, Pestle parsnip

native
Perennial herb

2020 Bob Sweatt

2022 Helen Hancock

Lomatium observatorium Mt. hamilton lomatium

• rare native
Perennial herb

2021 R.A. Chasey

2020 Amy Patten

2021 R.A. Chasey

Lomatium parryi Parry's lomatium, Utah desertparsley

native
Perennial herb

2020 Matt Berger

2016 Steve Matson

2020 David Greenberger

Lomatium parvifolium Coastal biscuitroot, Small leaved lomatium

• rare native
Perennial herb

2020 David Greenberger

2023 Mike Russler

2021 Patrick Furtado

Lomatium parvifolium var. parvifolium Coastal biscuitroot, Small leaved lomatium

• rare native
Perennial herb

2020 David Greenberger

2023 Mike Russler

2021 Patrick Furtado

Lomatium peckianum Peck's desertparsley, Peck's lomatium

• rare native
Perennial herb

2021 Amy Rachkowski

2011 Steve Matson

Lomatium piperi Indian biscuitroot, Piper's lomatium

native
Perennial herb

2011 Vernon Smith

2022 Alaine Arslan

2009 John Dittes

Lomatium ravenii Lassen parsley, Raven's lomatium

• rare native
Perennial herb

2012 Gerald Carr

Lomatium repostum Napa biscuitroot, Napa lomatium

• rare native
Perennial herb

2019 Jason Mills

2021 Larry Dizmang

Lomatium rigidum Big pine biscuitroot, Stiff lomatium

• rare native
Perennial herb

2012 Steve Matson

2010 Steve Matson

Lomatium roseanum Biscuitroot

• rare native
Perennial herb

2012 Dean Wm. Taylor, Ph.D.

Lomatium shevockii Owens peak desertparsley, Owens peak lomatium

• rare native
Perennial herb

2019 Matt Berger

Lomatium stebbinsii Stebbins' desertparsley, Stebbins's lomatium

• rare native
Perennial herb

2019 Matt Berger

Lomatium torreyi Sierra biscuitroot, Torrey's lomatium

native
Perennial herb

2022 Mike Russler

Lomatium tracyi Tracy's desertparsley, Tracy's lomatium

• rare native
Perennial herb

2019 Steve Matson

2018 Julie Kierstead Nelson

Lomatium triternatum Lewis' lomatium, Lewis's lomatium, Lomatium

native
Perennial herb

2017 Steve Matson

Lomatium triternatum var. anomalum Lewis' lomatium, Lewis's lomatium, Lomatium

native
Perennial herb

2017 Steve Matson

Lomatium triternatum var. macrocarpum Large fruited lewis' lomatium, Nineleaf biscuitroot

native
Perennial herb

2022 Dana York

1990 Gary A. Monroe

Lomatium triternatum var. triternatum Lewis' lomatium, Nineleaf biscuitroot

native
Perennial herb

2017 Steve Matson

Lomatium utriculatum Bladder parsnip, Common lomatium, Hog fennel

native
Perennial herb

2006 Steve Matson

2019 Eliezer Margolis

2015 James Gonsman

Lomatium vaginatum Broadsheath desertparsley, Sheathed lomatium

native
Perennial herb

2022 Ryan O'Dell

2013 Jake Ruygt

2008 Sean B. Smith

Lonicera cauriana Blue fly honeysuckle, Sweet berry honeysuckle

native
Shrub

2008 Barry Breckling

2022 Cheryl Beyer

2010 Keir Morse

Lonicera ciliosa Orange honeysuckle

native
Vine, Shrub

2021 Dee Shea Himes

2008 Matt Below

Lonicera conjugialis Double honeysuckle, Purpleflower honeysuckle

native
Shrub

2011 Steve Matson

Lonicera etrusca Etruscan honeysuckle, Honeysuckle

non-native
Vine, Shrub

2007 Luigi Rignanese

2006 Dr. Amadej Trnkoczy

Lonicera hispidula Pink honeysuckle

native
Vine, Shrub

2022 Suzanne L. Weakley

2021 Cara Wilcox

2018 Diana Wahl

Lonicera hispidula var. vacillans Pink honeysuckle

native
Vine, Shrub

2022 Suzanne L. Weakley

2021 Cara Wilcox

2018 Diana Wahl

Lonicera interrupta Chaparral honeysuckle

native
Vine, Shrub

2018 David Greenberger

2019 Julie Kierstead Nelson

2009 BOB CASE

Lonicera involucrata Coast twinberry, Twin berry, Twinberry honeysuckle

native
Shrub

2021 Suzanne L. Weakley

2020 Susan McDougall

2020 Camille Nowell

Lonicera involucrata var. involucrata Twinberry honeysuckle

native
Shrub

2019 Chico Hiking Association

2021 Mike Russler

2011 Ruth Gravanis

Lonicera involucrata var. ledebourii Coast twinberry, Twinberry honeysuckle

native
Shrub

2014 James Gonsman

2022 Suzanne L. Weakley

2010 Toni Corelli

Lonicera japonica Japanese honeysuckle

non-native
Vine, Shrub

2018 michelle peruzzi

2022 Andy Ford

2016 Keir Morse

Lonicera maackii Amur honeysuckle

non-native
Vine, Shrub

Lonicera subspicata Southern honeysuckle

native
Shrub

2022 David Strauch

2017 Diane Etchison

2018 David Greenberger

Lonicera subspicata var. denudata Chaparral honeysuckle, Johnston's honeysuckle, Santa barbara honeysuckle

native
Shrub

2019 Diane Etchison

2021 Ron Vanderhoff

Lonicera subspicata var. subspicata Santa Barbara honeysuckle, Southern honeysuckle

• rare native
Shrub

2022 Tanya baxter

2014 Keir Morse

2020 Deborah Dozier

Lonicera tatarica Tatarian honeysuckle

non-native
Shrub

2003 Joseph Dougherty/ecology.org

2005 Louis-M. Landry

Lotus angustissimus Slender bird's foot trefoil, Slender lotus

non-native
Annual herb

2015 James Gonsman

2010 Toni Corelli

2009 Zoya Akulova

Lotus corniculatus Bird's foot trefoil, Birdfoot deervetch, Broadleaf birdsfoot trefoil

• invasive non-native
Perennial herb

2005 Steve Matson

2014 Steve Matson

Lotus tenuis Narrow-leaf bird's-foot trefoil

non-native
Perennial herb

2018 Julian Geoghegan

Lotus pedunculatus Marsh lotus

non-native
Perennial herb

2006 Doreen L. Smith

2009 Phil Pullen

Lotus uliginosus Marsh lotus

non-native
Perennial herb

2006 Doreen L. Smith

2009 Phil Pullen

Ludwigia decurrens Wingleaf primrose-willow

non-native
Perennial herb

2022 Timothy Blank

2022 Sonia Zarate

Ludwigia grandiflora Large-flowered primrose-willow

non-native
Perennial herb

2023 Brit Barnes

2000 Joe DiTomaso

2023 Brit Barnes

Ludwigia hexapetala Ludwigia, Six petal water primrose

• invasive non-native
Perennial herb

2009 Keith Gagomiros

2021 Charles Russell

2019 Ron Vanderhoff

Ludwigia palustris Marsh purslane, Marsh seedbox

native
Perennial herb (aquatic)

2019 Robin Carter

2019 David popp

Ludwigia peploides Floating primrose willow, Floating water primrose, Marsh purslane

• invasive non-native
Perennial herb

2022 David Strauch

2019 Lenihan Mazur

2019 Patrick Furtado

Ludwigia peploides ssp. montevidensis Floating primrose willow, Floating water primrose

• invasive non-native
Perennial herb

2021 Mike Russler

Ludwigia peploides ssp. peploides Floating primrose willow, Floating water primrose, Marsh purslane

native
Perennial herb

2019 Patrick Furtado

2022 Donald Burk

Luetkea pectinata Partridge foot, Partridgefoot

native
Shrub

2006 Keir Morse

2017 Steve Matson

Luina hypoleuca Little leaf luina, Littleleaf silverback

native
Perennial herb

2022 Mary Ann Machi

2023 Mary Ann Machi

Luina serpentina Creeping silverback

non-native
Perennial herb

Luma apiculata Temu

non-native
Tree, Shrub

2016 Zoya Akulova

Lunaria annua Annual honesty, Annual moonwort, Honesty

non-native
Annual, Perennial herb

2022 Suzanne L. Weakley

2021 Lisa Berry

2021 Mike Russler

Lupinus adsurgens Drew's silky lupine

native
Perennial herb

2020 Liz Block

2017 Liz Block

2016 David popp

Lupinus adsurgens ssp. undulatus Drew's silky lupine

native
Perennial herb

2020 Liz Block

2017 Liz Block

2016 David popp

Lupinus affinis Fleshy lupine

native
Annual herb

2019 Alice Cummings

2023 John Rawlings

1992 Robert E. Preston, Ph.D.

Lupinus albicaulis Sickle keeled lupine, Sicklekeel lupine, White stemmed lupine

native
Perennial herb

2006 Steve Matson

2021 Mike Russler

Lupinus albifrons Silver bush lupine, Silver lupine

native
Shrub

2022 Mike Russler

2022 Steve Conger

2022 Ron Vanderhoff

Lupinus albifrons var. abramsii Abrams' lupine

• rare native
Perennial herb

2018 Michael Mitchell

Lupinus albifrons var. albifrons Silver bush lupine, Silver lupine

native
Shrub

2012 Michael Mitchell

2020 Richard Spjut

2020 Susan McDougall

Lupinus excubitus var. austromontanus Southern mountain lupine

native
Shrub

2016 Steve Matson

2022 Mike Russler

Lupinus albifrons var. collinus Silver bush lupine, Silver lupine, low growing silver lupine

native
Shrub

2020 Hunter Breck

2021 Steve Matson

2016 Steve Matson

Lupinus albifrons var. douglasii Douglas' silver bush lupine, Douglas' silver lupine, long-bracted silver lupine

native
Shrub

2013 James Gonsman

2019 Susan McDougall

Lupinus excubitus var. hallii Hall's bush lupine

native
Shrub

2020 Diane Etchison

2023 Ron Vanderhoff

2020 Diane Etchison

Lupinus excubitus var. medius mountain springs lupine

• rare native
Shrub

2011 Anna Bennett

2013 Duncan S. Bell

Lupinus andersonii Anderson's lupine

native
Perennial herb

2006 Steve Matson

Lupinus angustiflorus Narrow flowered lupine, Narrowflower lupine

native
Perennial herb

2022 Bob Sweatt

Lupinus antoninus Anthony peak lupine

• rare native
Perennial herb

2018 John Doyen

Rick York and CNPS

Lupinus apertus Naked lupine, Summit lupine

native
Perennial herb

2019 David popp

2010 Steven Perry

Lupinus arboreus Coastal bush lupine, Yellow bush lupine

native
Shrub

2019 Patrick Furtado

2014 Steve Matson

2020 Steve Matson

Lupinus arboreus var. arboreus Coastal bush lupine, Yellow bush lupine

native
Shrub

2019 Patrick Furtado

2014 Steve Matson

2020 Steve Matson

Lupinus propinquus Coastal bush lupine, Yellow bush lupine

native
Shrub

2019 Patrick Furtado

2014 Steve Matson

2020 Steve Matson

Lupinus arboreus var. eximius San mateo tree lupine

• rare native
Shrub

2021 Chuck Kozak

2022 Cynthia Powell

2021 Mike Russler

Lupinus eximius San mateo tree lupine

• rare native
Shrub

2021 Chuck Kozak

2022 Cynthia Powell

2021 Mike Russler

Lupinus arbustus Long spurred lupine, Longspur lupine

native
Perennial herb

2008 Steve Matson

2020 Belinda Lo

2008 Steve Matson

Lupinus arbustus ssp. calcaratus Long spurred lupine, Longspur lupine

native
Perennial herb

2008 Steve Matson

2020 Belinda Lo

2008 Steve Matson

Lupinus argenteus Silvery lupine

native
Perennial herb

2011 Steve Matson

Lupinus argenteus var. rubicaulis Silvery lupine

native
Perennial herb

2011 Steve Matson

Lupinus argenteus ssp. argenteus Silvery lupine

native
Perennial herb

2011 Steve Matson

Lupinus argenteus var. argenteus Silvery lupine

native
Perennial herb

2011 Steve Matson

Lupinus argenteus var. heteranthus Silvery lupine

native
Perennial herb

2022 Steve Woodward

2008 Steve Matson

2022 Steve Woodward

Lupinus argenteus var. utahensis Silvery lupine

native
Perennial herb

2022 Steve Woodward

2008 Steve Matson

2022 Steve Woodward

Lupinus caudatus Silvery lupine

native
Perennial herb

2022 Steve Woodward

2008 Steve Matson

2022 Steve Woodward

Lupinus caudatus ssp. caudatus Silvery lupine

native
Perennial herb

2022 Steve Woodward

2008 Steve Matson

2022 Steve Woodward

Lupinus argenteus var. meionanthus Lake tahoe lupine

native
Perennial herb

2011 Steve Matson

Lupinus argenteus var. montigenus Silvery lupine

native
Perennial herb

2008 Steve Matson

2005 Steve Matson

Lupinus argenteus var. palmeri Palmer's silver lupine

native
Perennial herb

2011 Steve Matson

2014 Steve Matson

Lupinus arizonicus Arizona lupine

native
Annual herb

2020 Diane Etchison

2020 David Greenberger

2020 Diane Etchison

Lupinus arizonicus var. arizonicus Arizona lupine

native
Annual herb

2020 Diane Etchison

2020 David Greenberger

2020 Diane Etchison

Lupinus benthamii Bentham lupine, Spider lupine

native
Annual herb

2016 Steve Matson

Lupinus bicolor Annual lupine, Bicolored lupine, Miniature lupine

native
Annual, Perennial herb

2021 Ken Lunders

2022 Mike Russler

2019 Gary McDonald

Lupinus polycarpus Annual lupine, Bicolored lupine, Miniature lupine

native
Annual, Perennial herb

2021 Ken Lunders

2022 Mike Russler

2019 Gary McDonald

Lupinus brevicaulis Sand lupine, Short stemmed blue lupine, Shortstem lupine

native
Annual herb

2011 Steve Matson

Lupinus breweri Brewer's lupine

native
Perennial herb

2006 Steve Matson

2011 Steve Matson

Lupinus breweri var. breweri Brewer's lupine

native
Perennial herb

2006 Steve Matson

Lupinus breweri var. bryoides Matted brewer's lupine, Matted lupine

native
Perennial herb

2011 Steve Matson

Lupinus breweri var. grandiflorus Matted lupine, Showy brewer's lupine

native
Perennial herb

2018 Ashley Olive

2023 Ryan O'Dell

Lupinus burkei Largeleaf lupine

non-native
Annual herb

Lupinus cervinus Santa lucia lupine

• rare native
Perennial herb

2019 Scott Yarger

Beatrice F. Howitt 1999 California Academy of Sciences

Lupinus chamissonis Beach blue lupine, Chamisso bush lupine, Dune bush lupine

native
Shrub

2020 Susan McDougall

2022 Mike Russler

2021 Cara Wilcox

Lupinus citrinus Fragrant lupine, Orange lupine, Orangeflower lupine

native
Annual herb

2023 Mike Russler

2022 Ryan O'Dell

2021 Mike Russler

Lupinus citrinus ssp. citrinus Fragrant lupine, Orange lupine, Orangeflower lupine

native
Annual herb

2023 Mike Russler

2022 Ryan O'Dell

2021 Mike Russler

Lupinus citrinus var. citrinus Orange lupine, Orangeflower lupine

• rare native
Annual herb

2023 Mike Russler

2019 Jacob Smith

Lupinus citrinus var. deflexus Mariposa lupine, Orangeflower lupine

• rare native
Annual herb

2009 Michael Osborne

Lupinus concinnus Bajada lupine, Elegant lupine, Scarlet lupine

native
Annual herb

2022 Ron Vanderhoff

2019 Ron Vanderhoff

2017 B.J. Dion

Lupinus concinnus var. agardhianus Bajada lupine, Elegant lupine, Scarlet lupine

native
Annual herb

2022 Ron Vanderhoff

2019 Ron Vanderhoff

2017 B.J. Dion

Lupinus constancei Lassics lupine

• rare native
Perennial herb

2021 Dee Shea Himes

Amelia Ryan

2008 Jennifer L. Kalt

Lupinus covillei Shaggy lupine

native
Perennial herb

2014 James Gonsman

2021 Steve Matson

Lupinus croceus Mt. eddy lupine

native
Perennial herb

2011 Steve Matson

2014 Steve Matson

2011 Steve Matson

Lupinus croceus ssp. croceus Mt. eddy lupine

native
Perennial herb

2011 Steve Matson

2014 Steve Matson

2011 Steve Matson

Lupinus croceus var. pilosellus Mt. eddy lupine, Saffron flowered lupine

• rare native
Perennial herb

2022 Julie A. Kierstead

Lupinus dalesiae Quincy lupine

• rare native
Perennial herb

2005 Steve Matson

Lupinus duranii Duran's lupine, Mono lake lupine, Mono lupin

• rare native
Perennial herb

2020 Steve Matson

Lupinus elatus Tall silky lupine

• rare native
Perennial herb

2003 Christopher L. Christie

2003 Michael Charters

Lupinus elmeri Elmer's lupine

• rare native
Perennial herb

2010 Sangeet Khalsa

2017 Belinda Lo

Lupinus excubitus Adonis lupine, Grape lupine, Grape soda lupine

native
Shrub

Geoff Burleigh

2020 Dana York

2022 Richard Spjut

Lupinus excubitus var. excubitus Grape lupine, Grape soda lupine

native
Shrub

2022 Richard Spjut

2007 Steve Matson

Lupinus flavoculatus Yellow eyed lupine, Yelloweyes

native
Annual herb

2005 Steve Matson

2016 Steve Matson

2005 Steve Matson

Lupinus formosus Lupine, Summer lupine, Western lupine

native
Perennial herb

2016 Michael Mitchell

2021 Mike Russler

2021 Cynthia Powell

Lupinus formosus var. formosus Summer lupine, Western lupine

native
Perennial herb

2016 Michael Mitchell

2011 Michael Mitchell

2020 R.A. Chasey

Lupinus formosus var. robustus Giant western lupine, Summer lupine

native
Perennial herb

2014 Bill Thiessen

2023 Rachel Miller

1995 Saint Mary's College of California

Lupinus fulcratus Green stipuled lupine, Greenstipule lupine

native
Perennial herb

2015 Cynthia Powell

2021 Mike Russler

2022 Steve Woodward

Lupinus grayi Gray's lupine, Sierra lupine

native
Perennial herb

2006 Steve Matson

Lupinus guadalupensis Guadalupe island lupine

• rare native
Annual herb

2011 Neal Kramer

2008 Kim M. Klementowski

Lupinus hirsutissimus Stinging annual lupine, Stinging lupine

native
Annual herb

2024 Mike Russler

2023 Neil Uelman

2019 Ron Vanderhoff

Lupinus holmgrenianus Holmgren's lupine

• rare native
Perennial herb

2011 Shannon Henke

Lupinus hyacinthinus Hyacinth lupine, San jacinto lupine, Summer lupine

native
Perennial herb

2019 Chris Leslie

2012 Robert Sikora

2017 Keir Morse

Lupinus lapidicola Heller's dwarf lupine, Mt. Eddy lupine

• rare native
Perennial herb

2020 Julie A. Kierstead

2019 R.A. Chasey

2016 Dana York

Lupinus latifolius Bigleaf lupine, Broad leaf lupine, Broadleaf lupine

native
Perennial herb

2017 Steve Matson

2008 Steve Matson

Lupinus latifolius var. thompsonianus Bigleaf lupine, Broad leaf lupine, Broadleaf lupine

native
Perennial herb

2017 Steve Matson

2008 Steve Matson

Lupinus latifolius var. columbianus Broad leaf lupine

native
Perennial herb

2021 John Rawlings

2020 Paul Aigner

2021 Steve Matson

Lupinus latifolius var. latifolius Broad leaf lupine

native
Perennial herb

2021 John Rawlings

2020 Paul Aigner

2021 Steve Matson

Lupinus latifolius var. parishii Parish's lupine

native
Perennial herb

Geoff Burleigh

2020 Manzanita Dictionary

Lupinus latifolius var. viridifolius Green leaf lupine

native
Perennial herb

2008 Steve Matson

Lupinus lepidus Pacific lupine, Tidy lupine

native
Perennial herb

2016 Diane Etchison

2010 Ann Dalkey

Lupinus lepidus var. ashlandensis Pacific lupine, Tidy lupine

native
Perennial herb

2016 Diane Etchison

2010 Ann Dalkey

Lupinus lepidus var. lobbi Pacific lupine, Tidy lupine

native
Perennial herb

2016 Diane Etchison

2010 Ann Dalkey

Lupinus lepidus var. confertus Clustered tidy lupine

native
Perennial herb

2013 Steve Matson

Lupinus lepidus var. culbertsonii Hockett meadows lupine

• rare native
Perennial herb

2018 Mary Merriman

2015 Dana York

Lupinus lepidus var. lobbii Lobb's lupine, Lobb's tidy lupine

native
Perennial herb

2005 Steve Matson

2022 Steve Matson

Lupinus sellulus ssp. sellulus var. lobbii Lobb's lupine, Lobb's tidy lupine

native
Perennial herb

Lupinus sellulus ssp. sellulus var. lobbii

2005 Steve Matson

2022 Steve Matson

Lupinus sellulus var. lobbii Lobb's lupine, Lobb's tidy lupine

native
Perennial herb

2005 Steve Matson

2022 Steve Matson

Lupinus lepidus var. ramosus Branched tidy lupine

native
Perennial herb

2017 Mary Merriman

2005 Steve Matson

Lupinus lepidus var. sellulus Dwarf tidy lupine, Stool lupine, Torrey's lupine

native
Perennial herb

2002 Steve Matson

2017 Steve Matson

Lupinus sellulus Dwarf tidy lupine, Stool lupine, Torrey's lupine

native
Perennial herb

2002 Steve Matson

2017 Steve Matson

Lupinus sellulus ssp. sellulus var. sellulus Dwarf tidy lupine, Stool lupine, Torrey's lupine

native
Perennial herb

Lupinus sellulus ssp. sellulus var. sellulus

2002 Steve Matson

2017 Steve Matson

Lupinus lepidus var. utahensis Utah tidy lupine

• rare native
Perennial herb

2019 David Greenberger

2009 Steve Matson

Lupinus leucophyllus Velvet lupine

native
Perennial herb

2015 Steve Matson

2005 Christopher L. Christie

2015 Steve Matson

Lupinus littoralis Seashore lupine

native
Perennial herb

2022 Mary Sue Ittner

2008 Gerald D. Carr

Lupinus variicolor

native
Shrub

2022 Suzanne L. Weakley

2015 James Gonsman

2022 Mary Sue Ittner

Lupinus longifolius Long leaf bush lupine, Longleaf bush lupine

native
Shrub

Geoff Burleigh

2023 Keir Morse

Geoff Burleigh

Lupinus ludovicianus San luis lupine, San luis obispo county lupine

• rare native
Perennial herb

2016 Kristie Haydu

2012 CNPS, San Luis Obispo Chapter

Lupinus luteolus Butter lupine, Pale yellow lupine

native
Annual herb

2019 Paul Aigner

2022 J Tunney

2019 Paul Aigner

Lupinus magnificus Magnificent lupine, Panamint mountain lupine

native
Perennial herb

2011 Steve Matson

2022 Steve Matson

Lupinus magnificus var. glarecola Coso mtns. lupine, Panamint mountain lupine

• rare native
Perennial herb

Gerald and Buff Corsi 2013 California Academy of Sciences

Lupinus magnificus var. magnificus Panamint mountain lupine, Panamint mtns. lupine

• rare native
Perennial herb

2011 Steve Matson

Lupinus microcarpus Chick lupine

native
Annual herb

2014 Steve Matson

2020 R.A. Chasey

Lupinus densiflorus var. densiflorus Chick lupine, Dense flowered platycarpos, Whitewhorl lupine

native
Annual herb

2014 Steve Matson

Lupinus microcarpus var. densiflorus Chick lupine, Dense flowered platycarpos, Whitewhorl lupine

native
Annual herb

2014 Steve Matson

Lupinus microcarpus var. horizontalis Chick lupine

native
Annual herb

2020 David Greenberger

2019 Diane Etchison

Lupinus microcarpus var. microcarpus Chick lupine, Valley lupine

native
Annual herb

2006 Steve Matson

Lupinus milo-bakeri Milo baker's lupine

• rare native
Annual herb

Jo-Ann Ordano 2000 California Academy of Sciences

1965 California Native Plant Society

1995 Saint Mary's College of California

Lupinus nanus Sky lupine

native
Annual herb

2016 Steve Matson

Lupinus nevadensis Nevada lupine

• rare native
Perennial herb

2010 Steve Matson

Lupinus nipomensis Nipomo lupine, Nipomo mesa lupine

• rare native
Annual herb

2022 Justin Luong

2015 Justin Luong

2022 Justin Luong

Lupinus obtusilobus Bluntlobe lupine, Satin lupine, Shasta lupine

native
Perennial herb

2017 Steve Matson

2020 Dana York

Lupinus odoratus Mojave lupine, Mojave royal lupine, Royal lupine

native
Annual herb

2016 Steve Matson

2010 Steve Matson

2008 Steve Matson

Lupinus onustus Northern lupine, Plumas lupine

native
Perennial herb

2018 David popp

2022 Julie A. Kierstead

Lupinus pachylobus Big pod lupine, Fatpod lupine, Mt. diablo lupine

native
Annual herb

2024 Mike Russler

2018 Michael Mitchell

2020 Julie A. Kierstead

Lupinus padre-crowleyi Dedecker lupine, Father crowley's lupine

• rare native
Perennial herb

2010 Steve Matson

2013 Steve Matson

2010 Steve Matson

Lupinus paynei Payne's bush lupine

• rare native
Shrub

2008 Tony Morosco

Lupinus peirsonii Long lupine, Peirson's lupine

• rare native
Perennial herb

2020 Mitchell Coleman

2015 Neal Kramer

Lupinus polyphyllus Bigleaf lupine, Bog lupine, Meadow lupine

native
Perennial herb

2019 Steve Matson

Lupinus polyphyllus ssp. superbus Burke's lupine, Meadow lupine

native
Perennial herb

2019 Steve Matson

Lupinus polyphyllus var. burkei Burke's lupine, Meadow lupine

native
Perennial herb

2019 Steve Matson

Lupinus polyphyllus var. polyphyllus Meadow lupine

native
Perennial herb

2022 John Rawlings

2019 Greg Kareofelas

2019 Jonathan Lee

Lupinus saxosus

native
perennial herb

2018 John Doyen

Lupinus pratensis Inyo meadow lupine

native
Perennial herb

2010 Steve Matson

Lupinus pratensis var. pratensis Inyo meadow lupine

native
Perennial herb

2010 Steve Matson

2001 Larry Blakely

2018 David Greenberger

Lupinus pusillus Rusty lupine

native
Annual herb

2014 Steve Matson

Lupinus pusillus var. intermontanus Intermountain lupine

• rare native
Annual herb

2014 Steve Matson

Lupinus rivularis Riverbank lupine

native
Perennial herb

2017 Steve Matson

Lupinus sericatus Cobb Mountain lupine

• rare native
Perennial herb

2015 Mitchell Bamford

2020 Tim Miller

Lupinus shockleyi Purple desert lupine, Shockley lupine

native
Annual herb

2005 Steve Matson

2012 Steve Matson

Lupinus sparsiflorus Coulter's lupine, Mohave lupine, Mojave lupine

native
Annual herb

2022 Ron Vanderhoff

2023 Ron Vanderhoff

Lupinus sparsiflorus ssp. sparsiflorus Coulter's lupine, Mohave lupine, Mojave lupine

native
Annual herb

2022 Ron Vanderhoff

2023 Ron Vanderhoff

Lupinus sparsiflorus ssp. mohavensis Mojave lupine

native
Annual herb

1997 Christopher L. Christie

Lupinus spectabilis Shaggyhair lupine

• rare native
Annual herb

2020 Matt Berger

2022 Mike Russler

Lupinus stiversii Harlequin annual lupine, Harlequin lupine

native
Annual herb

2018 Ashley Olive

2015 BOB CASE

Lupinus succulentus Arroyo lupine, Hollowleaf annual lupine, Succulent lupine

native
Annual herb

2023 Andy Ford

2018 Stacie Wolny

Lupinus tidestromii Tidestrom's lupine

• rare native
Perennial herb (rhizomatous)

2019 David Greenberger

2013 BOB CASE

2012 BOB CASE

Lupinus tidestromii var. layneae Tidestrom's lupine

• rare native
Perennial herb (rhizomatous)

2019 David Greenberger

2013 BOB CASE

2012 BOB CASE

Lupinus tracyi Tracy's lupine

• rare native
Perennial herb

2015 Dana York

2003 Norman Jensen

Lupinus truncatus Blunt leaved lupine, Collared annual lupine, Truncate leaf lupine

native
Annual herb

2023 Caitlin Kreutz

2023 Connor O'Hara-Baker

2010 Michael Mitchell

Lupinus uncialis inchhigh lupine, Lilliput lupine, Inch high lupine

• rare native
Annual herb

2023 Steve Matson

Luzula comosa Common wood rush, Hairy wood rush, Pacific woodrush

native
Perennial grasslike herb

2019 Matt Berger

2021 Steve Matson

Luzula divaricata Forked wood rush, Forked woodrush, Spreading wood rush

native
Perennial grasslike herb

2010 Barry Breckling

2015 Neal Kramer

2003 Steve Matson

Luzula glabrata Smooth woodrush

non-native
Perennial grasslike herb

Luzula multiflora Common woodrush

native
Perennial grasslike herb

2008 Keir Morse

Luzula multiflora ssp. multiflora Common woodrush

native
Perennial grasslike herb

2008 Keir Morse

Luzula orestera Heath wood rush, Sierra woodrush

native
Perennial grasslike herb

2022 Steve Matson

Luzula parviflora Small flowered wood rush, Smallflowered woodrush

native
Perennial grasslike herb

2022 Dana York

2019 David Greenberger

2012 Aaron Arthur

Luzula parviflora var. parviflora Small flowered wood rush, Smallflowered woodrush

native
Perennial grasslike herb

2022 Dana York

2019 David Greenberger

2012 Aaron Arthur

Luzula piperi Piper's woodrush

native
Perennial grasslike herb

2018 Susan McDougall

Luzula spicata Spiked wood rush, Spiked woodrush

native
Perennial grasslike herb

2009 Steve Matson

2015 Steve Matson

2009 Steve Matson

Luzula subcongesta Donner wood rush, Donner woodrush

native
Perennial grasslike herb

2017 Steve Matson

Luzula subsessilis Pacific woodrush

native
Perennial grasslike herb

2024 John Rawlings

2021 David popp

Lychnis coronaria Rose campion

non-native
Perennial herb

2020 MCOSD EDRR

2016 Mark Vande Pol

2014 Garrett Dickman

Lycianthes rantonnetii Blue potatobush

non-native
Perennial herb

2023 Ron Vanderhoff

Lycium andersonii Anderson thornbush, Anderson's desert thorn, Water jacket

native
Shrub

2010 Steve Matson

2022 Steve Matson

2010 Steve Matson

Lycium barbarum Matrimony vine

non-native
Shrub

2020 William ?Cody? Bryant

2011 Mary Winter

2015 Jean Pawek

Lycium brevipes Baja desert thorn, Fruitilla

native
Shrub

2020 Matt Berger

2020 Ron Vanderhoff

2009 Ron Vanderhoff

Lycium richii Baja desert thorn, Fruitilla

native
Shrub

2020 Matt Berger

2020 Ron Vanderhoff

2009 Ron Vanderhoff

Lycium brevipes var. brevipes Desert thorn

native
Shrub

2020 Matt Berger

2018 Fred Melgert / Carla Hoegen

2023 Keir Morse

Lycium brevipes var. hassei Santa catalina island desert thorn

• rare native
Shrub

2020 Ron Vanderhoff

Lycium californicum California box thorn, California boxthorn, California desert thorn

• rare native
Shrub

2011 Keir Morse

2020 Ron Vanderhoff

Lycium cooperi Cooper's box thorn, Peach thorn

native
Shrub

2015 Steve Matson

2022 Ryan O'Dell

Lycium exsertum Arizona desert-thorn

• rare native
Shrub

Lycium ferocissimum African boxthorn

• invasive non-native
Shrub

2011 Aaron Arthur

Lycium fremontii Fremont box thorn, Fremont's desert thorn

native
Shrub

2023 Keir Morse

2020 Matt Berger

Lycium pallidum Pale desert thorn

native
Shrub

2005 Steve Matson

2019 Matt Berger

2010 Jean Pawek

Lycium pallidum var. oligospermum Rabbit thorn

native
Shrub

2005 Steve Matson

2019 Matt Berger

Lycium parishii Parish's desert thorn

• rare native
Shrub

2016 Keir Morse

2021 Ron Vanderhoff

Lycium parishii var. parishii Parish's desert thorn

• rare native
Shrub

2016 Keir Morse

2021 Ron Vanderhoff

Lycium shockleyi Shockley's desert-thorn

non-native
Shrub

Lycium torreyi Torrey's box thorn

• rare native
Shrub

2017 Wynn Anderson

2013 Wynn Anderson

2018 Wynn Anderson

Lycopersicon esculentum Tomato

non-native
Annual, Perennial herb

2019 Julian Geoghegan

2021 Ron Vanderhoff

2015 John Sayers

Solanum lycopersicum Tomato

non-native
Annual, Perennial herb

2019 Julian Geoghegan

2021 Ron Vanderhoff

2015 John Sayers

Lycopodiella cernua Staghorn clubmoss

non-native
Fern (rhizomatous)

Lycopodiella inundata Bog club moss, Inundated clubmoss

• rare native

2015 Greg O'Connell

1995 Saint Mary's College of California

2012 Phil Pullen

Lycopodium clavatum Running clubmoss, Running pine

• rare native

2020 Wyatt Dooley

2018 Jonathan Lee

2021 Gabe Cashman

Lycopodium clavatum ssp. monostachyon Running clubmoss, Running pine

• rare native

2020 Wyatt Dooley

2018 Jonathan Lee

2021 Gabe Cashman

Lycopus americanus American water horehound, Bugleweed

native
Perennial herb

2021 Donald Burk

2021 Sara Sweet

Lycopus uniflorus Northern bugleweed

• rare native
Perennial herb

2006 Steve Matson

Lycopus uniflorus var. uniflorus Northern bugleweed

• rare native
Perennial herb

2006 Steve Matson

Lyonothamnus floribundus Catalina ironwood, Island ironwood

native
Tree

2016 Camille Nowell

2009 Ryan Gilmore

2018 Ron Vanderhoff

Lyonothamnus floribundus var. asplenifolius Catalina ironwood, Island ironwood

native
Tree

Lyonothamnus floribundus var. asplenifolius

2016 Camille Nowell

2009 Ryan Gilmore

2018 Ron Vanderhoff

Lyonothamnus floribundus ssp. aspleniifolius Santa cruz island ironwood

• rare native
Tree

Lyonothamnus floribundus ssp. aspleniifolius

2014 Steve Matson

2020 Susan McDougall

2014 Steve Matson

Lyonothamnus floribundus ssp. floribundus Catalina ironwood, Santa catalina island ironwood

• rare native
Tree

Lyonothamnus floribundus ssp. floribundus

2018 Ron Vanderhoff

2019 B.J. Dion

Lyrocarpa coulteri Coulter's lyrepod

• rare native
Perennial herb

2020 Bonnie Nickel

2020 Matt Berger

2020 David Greenberger

Lyrocarpa coulteri var. coulteri Coulter's lyrepod

• rare native
Perennial herb

2020 Bonnie Nickel

2020 Matt Berger

2020 David Greenberger

Lyrocarpa coulteri var. palmeri Coulter's lyrepod

• rare native
Perennial herb

2020 Bonnie Nickel

2020 Matt Berger

2020 David Greenberger

Lysichiton americanus American skunkcabbage, Yellow skunk cabbage

native
Perennial herb

2011 Paul Preston

2016 Steve Matson

Anagallis arvensis Scarlet pimpernel

non-native
Annual herb

2017 B.J. Dion

2022 Chris McDonald

2023 Ron Vanderhoff

Anagallis arvensis ssp. foemina Scarlet pimpernel

non-native
Annual herb

2017 B.J. Dion

2022 Chris McDonald

2023 Ron Vanderhoff

Anagallis arvensis var. arvensis Scarlet pimpernel

non-native
Annual herb

2017 B.J. Dion

2022 Chris McDonald

2023 Ron Vanderhoff

Lysimachia arvensis Scarlet pimpernel

non-native
Annual herb

2017 B.J. Dion

2022 Chris McDonald

2023 Ron Vanderhoff

Trientalis borealis Starflower

native
Perennial herb

2006 Louis-M. Landry

2008 Matt Below

2018 David popp

Trientalis arctica Arctic starflower

• rare native
Perennial herb

2017 Barry Rice

2014 Wynn Anderson

Trientalis europaea Arctic starflower

• rare native
Perennial herb

2017 Barry Rice

2014 Wynn Anderson

Trientalis europaea ssp. arctica Arctic starflower

• rare native
Perennial herb

2017 Barry Rice

2014 Wynn Anderson

Lysimachia latifolia Pacific starflower

native
Perennial herb

2008 Steve Matson

2016 Steve Matson

2008 Steve Matson

Trientalis latifolia Pacific starflower

native
Perennial herb

2008 Steve Matson

2016 Steve Matson

2008 Steve Matson

Glaux maritima Sea milkwort

native
Perennial herb

2007 Steve Matson

2017 Steve Matson

Lysimachia maritima Sea milkwort

native
Perennial herb

2007 Steve Matson

2017 Steve Matson

Anagallis minima Chaffweed

native
Annual herb

2020 Ron Vanderhoff

2018 Hayley Ross

2020 Ron Vanderhoff

Lysimachia minima Chaffweed

native
Annual herb

2020 Ron Vanderhoff

2018 Hayley Ross

2020 Ron Vanderhoff

Anagallis monelli Flaxleaf pimpernel

non-native
Perennial herb

2022 Richard Sullivan

2021 Randy Huey

2022 John Doyen

Lysimachia monelli Flaxleaf pimpernel

non-native
Perennial herb

2022 Richard Sullivan

2021 Randy Huey

2022 John Doyen

Lysimachia nummularia Creeping jenny, Moneywort

non-native
Perennial herb

2005 Louis-M. Landry

Lysimachia thyrsiflora Tufted loosestrife, Tufted yellow loosestrife

• rare native
Perennial herb

2016 Keir Morse

2011 Sierra Pacific Industries

2016 Keir Morse

Lythrum californicum California loosestrife, Common loosestrife

native
Perennial herb

2017 Fred Melgert / Carla Hoegen

2020 Ron Vanderhoff

2017 David Wolfson

Lythrum hyssopifolia Hyssop loosestrife

• invasive non-native
Annual, Perennial herb

2019 Diane Etchison

2021 Cynthia Powell

2020 Ron Vanderhoff

Lythrum salicaria Purple loosestrife

• invasive non-native
Perennial herb

2021 David popp

2015 Jean B Henney

2020 Katie Rian

Lythrum tribracteatum Three bracted loosestrife, Threebract loosestrife

non-native
Annual herb

2023 R.A. Chasey

2019 Ramona Robison

2023 R.A. Chasey

Macadamia integrifolia Macadamia nut

non-native
Tree

Machaeranthera tanacetifolia Tanseyleaf tansyaster, Tansy leaved aster

native
Annual herb

2005 James M. Andre

2012 Richard Spellenberg

Maclura pomifera Osage orange

non-native
Tree, Shrub

2016 Steve Matson

Madia anomala Plump seeded madia, Plumpseeded madia, Tarweed

native
Annual herb

2022 Shannon W

1995 Saint Mary's College of California

Madia citrigracilis Shasta tarweed

native
Annual herb

2011 Dan Shimmon

Madia citriodora Lemon scented tarweed, Lemonscented madia

native
Annual herb

2019 Bob Sweatt

Madia elegans Common madia

native
Annual herb

2021 Jamie Spielmann

2021 Mike Russler

2020 Diane Etchison

Madia elegans ssp. densifolia Common madia

native
Annual herb

2021 Jamie Spielmann

2021 Mike Russler

2020 Diane Etchison

Madia exigua Little tarweed, Meager tarweed, Small tarweed

native
Annual herb

2023 Dianne Lake

2023 Ron Vanderhoff

2021 Helen Hancock

Madia glomerata Mountain tarweed

native
Annual herb

2023 Mike Russler

2008 Steve Matson

Madia gracilis Grassy tarweed, Gumweed madia, Slender tarweed

native
Annual herb

2022 Mike Russler

2021 Amber Bedgood

2019 Ron Vanderhoff

Madia radiata Golden madia, Showy madia

• rare native
Annual herb

2023 Jacob Smith

2016 George Butterworth

Madia sativa Chile tarweed, Coast tarweed, Coastal tarweed

native
Annual herb

2013 Ron Vanderhoff

2021 David Wolfson

2021 Zoya Akulova-Barlow

Magnolia grandiflora Southern magnolia

non-native
Tree

MAGNOLIACEAE

2018 Philip Oakley Otto

Nick Kurzenko

2018 Philip Oakley Otto

Mahonia lomariifolia Chinese hollygrape

non-native
Shrub

Maianthemum dilatatum False lily of the valley, False lily of the vally, Pacific may lily

native
Perennial herb

2020 Doug Allshouse

2020 Susan McDougall

2022 Dee Shea Himes

Maianthemum racemosum Feathery false lily of the valley

native
Perennial herb

2020 Bob Sweatt

2018 Steve Matson

2019 Cynthia Powell

Maianthemum racemosum ssp. amplexicaule Feathery false lily of the valley

native
Perennial herb

2020 Bob Sweatt

2018 Steve Matson

2019 Cynthia Powell

Maianthemum racemosum ssp. racemosum Feathery false lily of the valley

native
Perennial herb

2020 Bob Sweatt

2018 Steve Matson

2019 Cynthia Powell

Smilacina racemosa Feathery false lily of the valley

native
Perennial herb

2020 Bob Sweatt

2018 Steve Matson

2019 Cynthia Powell

Maianthemum stellatum Starry false lily of the valley

native
Perennial herb

2021 Cyril Guyot

2003 Steve Matson

2020 Susan McDougall

Smilacina sessilifolia Starry false lily of the valley

native
Perennial herb

2021 Cyril Guyot

2003 Steve Matson

2020 Susan McDougall

Smilacina stellata Starry false lily of the valley

native
Perennial herb

2021 Cyril Guyot

2003 Steve Matson

2020 Susan McDougall

Malacothamnus abbottii Abbott's bushmallow

• rare native
Shrub

2018 Keir Morse

2019 Keir Morse

Malacothamnus aboriginum Indian Valley bushmallow

• rare native
Shrub

2021 Mike Russler

2022 Mike Russler

Malacothamnus arcuatus Arcuate bushmallow

• rare native
Shrub

2019 Ken Hickman

2006 Toni Corelli

2022 R.A. Chasey

Malacothamnus hallii Eastern bewildering bushmallow

native
Shrub

2022 R.A. Chasey

2017 Keir Morse

Malacothamnus clementinus San Clemente Island bushmallow

• rare native
Shrub

2011 Dylan Neubauer

2011 Michelle Cloud-Hughes

2011 Dylan Neubauer

Malacothamnus davidsonii Davidson's bushmallow, Tujunga bushmallow

• rare native
Shrub

2017 Kristin Sabo

Malacothamnus densiflorus Many-flowered bushmallow, Few-rayed bushmallow

native
Shrub

2019 Keir Morse

2019 Ron Vanderhoff

2021 Ron Vanderhoff

Malacothamnus fasciculatus Chaparral bushmallow, Southern coastal bushmallow

native
Shrub

2020 Aaron Echols

2020 Ron Vanderhoff

2017 David Magney

Malacothamnus fasciculatus var. catalinensis Santa Catalina Island bushmallow

• rare native
Shrub

Malacothamnus fasciculatus var. catalinensis

2019 Keir Morse

2010 Gary A. Monroe

2019 Keir Morse

Malacothamnus fasciculatus var. fasciculatus Chaparral bushmallow, Mesa bushmallow

native
Shrub

Malacothamnus fasciculatus var. fasciculatus

2019 Diane Etchison

Malacothamnus fasciculatus var. nesioticus Santa Cruz Island bushmallow

• rare native
Shrub

Malacothamnus fasciculatus var. nesioticus

2014 Steve Matson

2022 Kyle Suchy

2014 Steve Matson

Malacothamnus fremontii Unfurled bushmallow

native
Shrub

2019 Keir Morse

2017 Keir Morse

2022 Ryan O'Dell

Malacothamnus helleri Short-haired unfurled bushmallow

native
Shrub

2017 Keir Morse

2019 Keir Morse

Malacothamnus palmeri var. involucratus Carmel Valley bushmallow

native
Shrub

2017 Keir Morse

Malacothamnus jonesii Jones's bushmallow

• rare native
Shrub

2012 Terrence Gosliner

2017 Keir Morse

Malacothamnus gracilis Huasna bushmallow

• rare native
Shrub

2017 Keir Morse

2018 Keir Morse

Malacothamnus niveus Fragrant-snow bushmallow

• rare native
Shrub

2017 Keir Morse

Malacothamnus palmeri var. lucianus Santa Lucia bushmallow

native
Shrub

2018 dave nelson

2018 Angelique Herman

2018 dave nelson

Malacothamnus marrubioides Santa Clarita bushmallow

native
Shrub

2018 Keir Morse

2020 Keir Morse

Malacothamnus fasciculatus var. nuttallii Ojai bushmallow

native
Shrub

Malacothamnus fasciculatus var. nuttallii

2014 Keir Morse

Malacothamnus orbiculatus Tehachapi bushmallow

native
Shrub

2020 Keir Morse

2017 Keir Morse

Malacothamnus palmeri Palmer's bushmallow, Cambria bushmallow

• rare native
Shrub

2012 Chris Winchell

2017 Keir Morse

Malacothamnus palmeri var. palmeri Palmer's bushmallow, Cambria bushmallow

• rare native
Shrub

2012 Chris Winchell

2017 Keir Morse

Malacothrix californica California dandelion, Desert dandelion

native
Annual herb

2023 David Wolfson

Geoff Burleigh

Malacothrix clevelandii Cleveland's dandelion, Cleveland's desertdandelion, Cleveland's malacothrix

native
Annual herb

2021 Steve Laymon

2022 Mike Russler

2023 R.A. Chasey

Malacothrix coulteri Snake's head

native
Annual herb

2020 David Greenberger

2020 Matt Berger

2020 David Greenberger

Malacothrix floccifera Woolly dandelion, Woolly desertdandelion, Woolly malacothrix

native
Annual herb

2019 David Greenberger

2020 David Greenberger

2020 Kevin Janicki

Malacothrix foliosa ssp. foliosa Leafy desertdandelion

• rare native
Annual herb

2011 Dylan Neubauer

2011 Neal Kramer

Malacothrix foliosa ssp. polycephala Manyhead desertdandelion

• rare native
Annual herb

2012 Gary A. Monroe

Malacothrix glabrata Desert dandelion, Smooth desertdandelion

native
Annual herb

2019 Diane Etchison

2022 Steve Matson

2017 Leah Gardner

Malacothrix incana Dunedelion

• rare native
Perennial herb

2020 David Greenberger

2018 David Wolfson

2006 Steve Matson

Malacothrix indecora Santa cruz island cliff aster, Santa cruz island desertdandelion, Santa cruz island malacothrix

• rare native
Annual herb

2002 Dieter Wilken

Malacothrix saxatilis Cliff aster, Cliff desertdandelion

native
Perennial herb

2019 Marisa Persaud

2023 Ron Vanderhoff

2019 Adonis Tate

Malacothrix saxatilis var. arachnoidea Carmel valley cliff aster, Cliff desertdandelion

• rare native
Perennial herb (rhizomatous)

2019 Adonis Tate

Donald Myrick 1999 California Academy of Sciences

Malacothrix saxatilis var. commutata Cliff desertdandelion, South coast range malacothrix

native
Perennial herb

2016 George Butterworth

2003 Christopher L. Christie

Malacothrix saxatilis var. implicata Cliff aster, Cliff desertdandelion, Cliff malacothrix

native
Perennial herb

2006 Steve Matson

2014 Steve Matson

Malacothrix saxatilis var. saxatilis Cliff aster, Cliff desertdandelion

• rare native
Perennial herb

2021 Ron Vanderhoff

Malacothrix saxatilis var. tenuifolia Cliff desertdandelion, Short leaved cliff aster

native
Perennial herb

2021 Ron Vanderhoff

2019 Diane Etchison

Malacothrix sonchoides Sow thistle malacothrix, Sowthistle desertdandelion, Yellow saucers

native
Annual herb

2005 Steve Matson

2011 Steve Matson

Malacothrix stebbinsii Stebbins' dandelion, Stebbins' desertdandelion, Stebbins' malacothrix

native
Annual herb

2017 Fred Melgert / Carla Hoegen

2012 Richard Spellenberg

Malacothrix torreyi Torrey's desertdandelion, Torrey's malacothrix

native
Annual herb

2023 Steve Matson

Malaxis monophyllos

native
Perennial herb (bulb)

2007 Dr. Amadej Trnkoczy

2013 Raymond Prothero

2007 Dr. Amadej Trnkoczy

Malaxis monophyllos var. brachypoda White bog adder's-mouth

• rare native
Perennial herb (bulb)

2012 Duncan S. Bell

2016 Adrienne Simmons

Malcolmia maritima Virginia stock

non-native
Annual herb

Malephora crocea Coppery mesembryanthemum

• invasive non-native
Perennial herb

2022 Ron Vanderhoff

2022 Daniel Huynh

2021 Ron Vanderhoff

Malosma laurina Laurel sumac

native
Tree, Shrub

2015 Steven M Norris

2018 susan Bashore

2023 Ron Vanderhoff

Malperia tenuis Brown turbans, Brownturbans

• rare native
Annual herb

2020 David Greenberger

2010 Larry Sward

2010 Neal Kramer

Malus floribunda Japanese flowering crabapple

non-native
Tree

2016 Dave Brandt

Malus fusca Oregon crab apple, Oregon crabapple

native
Tree, Shrub

2018 Adam Canter

2018 Cynthia Powell

Malus pumila Paradise apple

non-native
Tree

2014 Ramona Robison

2018 Angelique Herman

2005 Louis-M. Landry

Malus sylvestris Paradise apple

non-native
Tree

2014 Ramona Robison

2018 Angelique Herman

2005 Louis-M. Landry

Lavatera arborea Tree mallow

non-native
Shrub

2021 Jennifer Mo

2015 Richard Chasey

2011 Ramona Robison

Malva arborea Tree mallow

non-native
Shrub

2021 Jennifer Mo

2015 Richard Chasey

2011 Ramona Robison

Lavatera assurgentiflora Island mallow

native
Shrub

2011 Dylan Neubauer

2018 Ron Vanderhoff

2014 Ron Vanderhoff

Malva assurgentiflora Island mallow

native
Shrub

2011 Dylan Neubauer

2018 Ron Vanderhoff

2014 Ron Vanderhoff

Malva moschata Musk mallow

non-native
Annual, Perennial herb

2005 Louis-M. Landry

Malva pseudolavatera

non-native
Annual, Biennial herb

2021 Ron Vanderhoff

Malva neglecta Common mallow, Dwarf mallow

non-native
Annual, Perennial herb

2022 Bob Sweatt

2019 Randy Huey

2022 Bob Sweatt

Malva nicaeensis Bull mallow

non-native
Annual herb

2015 Mike Morales

2020 Ron Vanderhoff

Malva parviflora Cheeseweed mallow

non-native
Annual herb

2022 Mike Russler

2022 Donald Burk

2022 Mike Russler

Lavatera cretica Cretan mallow

non-native
Shrub

2021 Ron Vanderhoff

2022 Jennifer Mo

Malva sylvestris High mallow

non-native
Perennial herb

2017 Ron Vanderhoff

2005 Luigi Rignanese

2004 Dr. Amadej Trnkoczy

Malva verticillata Cluster mallow

non-native
Annual herb

2018 Zoya Akulova

Malvella leprosa Alkali mallow

native
Perennial herb

2023 Donald Burk

2019 Bonnie Nickel

Mammillaria dioica Fish hook cactus, Strawberry cactus

native
Shrub (stem succulent)

2019 Ray Gill

2020 Matt Berger

2019 Stacie Wolny

Mammillaria grahamii Graham's nipple cactus

native
Shrub (stem succulent)

2005 Gene Wagner, RPh.

2008 Christopher L. Christie

2016 Jason Matthias Mills

Mammillaria grahamii var. grahamii Graham's fishhook cactus

• rare native
Shrub (stem succulent)

2008 Christopher L. Christie

Mammillaria microcarpa Graham's fishhook cactus

• rare native
Shrub (stem succulent)

2008 Christopher L. Christie

Mammillaria tetrancistra Common fish hook cactus, Common fishhook cactus, Fishhook cactus

native
Shrub (stem succulent)

2020 Matt Berger

2008 Steve Matson

Mangifera indica Mango

non-native
Perennial herb

Marah fabacea California man-root

native
Perennial herb, Vine

2018 Gary McDonald

2018 MCOSD EDRR

2021 Cyril Guyot

Marah fabaceus California man-root

native
Perennial herb, Vine

2018 Gary McDonald

2018 MCOSD EDRR

2021 Cyril Guyot

Marah horrida Sierra man-root

native
Perennial herb, Vine

2019 Anna Van Kovn

2015 BOB CASE

2010 Richard Spjut

Marah macrocarpa Chilicothe

native
Perennial herb, Vine

2020 David Greenberger

2022 David Strauch

2021 david berman

Marah macrocarpus Chilicothe

native
Perennial herb, Vine

2020 David Greenberger

2022 David Strauch

2021 david berman

Marah macrocarpus var. macrocarpus Chilicothe

native
Perennial herb, Vine

2020 David Greenberger

2022 David Strauch

2021 david berman

Marah macrocarpus var. major Chilicothe

native
Perennial herb, Vine

2020 David Greenberger

2022 David Strauch

2021 david berman

Marah oregana Coast man-root

native
Perennial herb, Vine

2020 Susan McDougall

2017 James Gonsman

2016 Steve Matson

Marah oreganus Coast man-root

native
Perennial herb, Vine

2020 Susan McDougall

2017 James Gonsman

2016 Steve Matson

Marah watsonii Taw Man-Root

native
Perennial herb, Vine

2015 Steve Matson

Marchantia polymorpha

non-native
Liverwort

MARCHANTIACEAE

2020 Bob Sweatt

2022 Mike Russler

2021 Bob Sweatt

Marina orcuttii var. orcuttii California marina

• rare native
Perennial herb

2013 Keir Morse

Marina parryi Parry dalea, Parry's false prairie clover, Parry's marina

native
Perennial herb

2010 Steve Matson

2019 Matt Berger

Marrubium vulgare White horehound

• invasive non-native
Perennial herb

�2013 Gary McDonald

2015 Diane Etchison

2018 Nancy Hamlett

Marsilea oligospora Nelson's pepperwort, Pacific waterclover

native
Fern

2021 BLM Redding Field Office

2005 Steve Matson

Marsilea vestita Hairy waterclover

native
Fern

2020 Ron Vanderhoff

2020 Ken Hickman

2020 Ron Vanderhoff

Marsilea vestita ssp. vestita Hairy pepperwort, Hairy waterclover

native
Fern

2019 Ron Vanderhoff

2017 Ron Vanderhoff

Matelea parvifolia Spearleaf

• rare native
Perennial herb

2019 Matt Berger

2014 Keir Morse

Matricaria chamomilla German chamomile

non-native
Annual herb

2011 Toni Corelli

2017 John Sayers

2003 Filippo Chierici

Chamomilla suaveolens Pineapple weed

native
Annual herb

2008 Steve Matson

2018 Stacie Wolny

Matricaria discoidea Pineapple weed

native
Annual herb

2008 Steve Matson

2018 Stacie Wolny

Matricaria matricarioides Pineapple weed

native
Annual herb

2008 Steve Matson

2018 Stacie Wolny

Matricaria occidentalis Valley mayweed

native
Annual herb

2016 Steve Matson

Matthiola incana Tenweeks stock

non-native
Perennial herb

2020 Ron Vanderhoff

2021 Ron Vanderhoff

Maurandella antirrhiniflora Roving sailor

• rare native
Perennial herb

2010 James M. Andre

2003 Charles E. Jones

2019 Belinda Lo

Maurandya antirrhiniflora Roving sailor

• rare native
Perennial herb

2010 James M. Andre

2003 Charles E. Jones

2019 Belinda Lo

Mauranthemum paludosum

non-native

2016 Andrea Williams

2016 MMWD / Andrea Williams

Maytenus boaria Mayten

• invasive non-native
Tree, Shrub

2021 Julian Geoghegan

2022 Jacob Martin

Maytenus magellanica Magellan's mayten

non-native
Tree, Shrub

2010 Dean Wm. Taylor, Ph.D

Meconella californica California fairypoppy, California meconella

native
Annual herb

2021 Karen Swift

2016 Bob Case

2017 David Greenberger

Meconella denticulata Small flowered meconella, Smallflower fairypoppy

native
Annual herb

2019 Ron Vanderhoff

2012 Ron Vanderhoff

Meconella oregana White fairypoppy

• rare native
Annual herb

2022 R.A. Chasey

2021 R.A. Chasey

Medicago arabica Spotted burclover, Spotted medick

non-native
Annual herb

2023 R.A. Chasey

null

Medicago arborea Moon trefoil

non-native
Annual herb

Medicago lupulina Black medick

non-native
Annual, Perennial herb

2020 Ron Vanderhoff

Medicago lupulina ssp. cupaniana Black medick

non-native
Annual, Perennial herb

2020 Ron Vanderhoff

Medicago lupulina var. glandulosa Black medick

non-native
Annual, Perennial herb

2020 Ron Vanderhoff

Medicago minima Burclover, Burr medick, Small bur clover

non-native
Annual herb

2023 Donald Burk

2007 Luigi Rignanese

2020 george lawton

Medicago orbicularis Blackdisk medick, Buttonclover, Round leafed medick

non-native
Annual herb

2007 Luigi Rignanese

2024 David popp

2007 Luigi Rignanese

Medicago hispida Bur clover, Bur medic, California burclover

• invasive non-native
Annual herb

2019 Gary McDonald

Medicago polymorpha Bur clover, Bur medic, California burclover

• invasive non-native
Annual herb

2019 Gary McDonald

Medicago praecox Mediterranean medick

non-native
Annual herb

2012 Jean Pawek

2022 David popp

2012 Jean Pawek

Medicago sativa Alfalfa

non-native
Perennial herb

2017 Hayley Ross

2020 Bob Sweatt

2017 Hayley Ross

Medicago sativa ssp. sativa Alfalfa

non-native
Perennial herb

2016 Keir Morse

Medicago Xvaria Alfalfa

non-native
Perennial herb

2016 Keir Morse

Medicago scutellata Snail medick

non-native
Annual herb

2007 Luigi Rignanese

Meesia triquetra Meesia moss

• rare native
Moss

MEESIACEAE

2008 Steve Matson

Meesia uliginosa Meesia moss

• rare native
Moss

MEESIACEAE

2013 Scot Loring

2006 Chris Wagner

Melaleuca citrina

non-native
Tree

2018 Ron Vanderhoff

Melaleuca linariifolia Cajeput tree

non-native
Tree

Melaleuca nesophila showy honey-myrtle

non-native
Tree

2021 Ron Vanderhoff

2020 Elliot Gunnison

Melaleuca quinquenervia Punktree

non-native
Tree

Melaleuca styphelioides Prickly-leaf teatree

non-native
Tree

Callistemon viminalis

non-native
Tree

2021 Ron Vanderhoff

2018 Ron Vanderhoff

2021 Ron Vanderhoff

Melampodium perfoliatum Perfoliate blackfoot

non-native
Annual herb

2016 Wynn Anderson

Melia azedarach China berry tree, Chinaberrytree, Persian lilac, china berry

non-native
Tree

MELIACEAE

2019 Ron Vanderhoff

2022 Donald Burk

2018 Ron Vanderhoff

Melianthus major Honey flower

non-native
Shrub

MELIANTHACEAE

2018 Zoya Akulova

2017 Zoya Akulova

2010 Zoya Akulova

Melica aristata Awned melic, Bearded melicgrass

native
Perennial grass

2021 David popp

2022 John Rawlings

2017 Belinda Lo

Melica bulbosa Big oniongrass

native
Perennial grass

2019 David popp

null

2009 Trent M. Draper

Melica californica California melicgrass

native
Perennial grass

2023 John Rawlings

2021 John Rawlings

2022 John Rawlings

Melica frutescens Heligrass, Tall melica, Woody melicgrass

native
Perennial grass

2012 Keir Morse

2022 Neal Kramer

2012 Keir Morse

Melica fugax Little oniongrass, Small melic, Small onion grass

native
Perennial grass

2023 Matt Berger

Melica geyeri Geyer's onion grass, Geyer's oniongrass

native
Perennial grass

2019 John Rawlings

2023 R.A. Chasey

2020 Robert Steers

Melica harfordii Harford melic, Harford's melica, Harford's oniongrass

native
Perennial grass

2021 Dee Shea Himes

Melica imperfecta California melic, Coast range melic, Small flowered melica

native
Perennial grass

2020 Ron Vanderhoff

2021 Ron Vanderhoff

2020 Ron Vanderhoff

Melica spectabilis Purple onion grass, Purple oniongrass

• rare native
Perennial grass (rhizomatous)

2009 Trent M. Draper

2011 Steve Matson

Melica stricta Nodding melica, Rock melicgrass

native
Perennial grass

2003 Steve Matson

2009 Steve Matson

Melica subulata Alaska melic, Alaska onion grass, Alaska oniongrass

native
Perennial grass

2020 Sara Timby

2023 Teal Derrer

2022 Ellen Uhler

Melica torreyana Torrey melic, Torrey's melica, Torrey's melicgrass

native
Perennial grass

2021 Toni Corelli

2019 John Rawlings

2017 MCOSD Restoration Crew

Melilotus albus White sweetclover

• invasive non-native
Annual, Biennial herb

2021 Ron Vanderhoff

2020 Bob Sweatt

2022 Ron Vanderhoff

Melilotus indicus Annual yellow sweetclover, Sourclover

non-native
Annual herb

2019 Randy Huey

2017 Rosalie Benitez

Melilotus officinalis Yellow sweetclover

non-native
Annual, Biennial herb

2020 Bob Sweatt

Melinis minutiflora Molassesgrass

non-native
Annual grass

Melinis repens Natal grass

non-native
Annual grass

2016 Erik Larsen

2021 Ron Vanderhoff

Melinis repens ssp. repens Natal grass, ruby grass

non-native
Annual grass

2017 Ron Vanderhoff

2021 Ron Vanderhoff

Melissa officinalis Bee balm, Common balm, Lemon balm

non-native
Perennial herb

2022 R.A. Chasey

2021 R.A. Chasey

2021 Cara Wilcox

Menodora scabra Rough desert olive, Rough menodora

native
Shrub

2005 James M. Andre

2004 James M. Andre

2010 Lee Dittmann

Menodora scabra var. glabrescens Broom tvinberry, Desert olive

native
Perennial herb

2005 James M. Andre

2011 Gina Richmond

Menodora scoparia Broom tvinberry, Desert olive

native
Perennial herb

2005 James M. Andre

2011 Gina Richmond

Menodora scabra var. scabra Rough desert olive

• rare native
Shrub

2012 James M. Andre

Menodora spinescens Spiny desert olive, Spiny menodora, Spiny monodora

native
Shrub

2008 Steve Matson

2009 Steve Matson

2022 Steve Matson

Menodora spinescens var. mohavensis Mojave menodora

• rare native
Shrub

2020 Matt Berger

2012 James M. Andre

Menodora spinescens var. spinescens Spiny desert olive

native
Shrub

2017 Steve Matson

2015 Steve Matson

Mentha aquatica Water mint

non-native
Perennial herb

2020 Ron Vanderhoff

2021 Nathan Taxel

Mentha arvensis American wild mint, Field mint, Marsh mint

native
Perennial herb

2003 Steve Matson

2014 Steve Matson

Mentha arvensis var. canadensis Wild mint

native
Perennial herb

2023 R.A. Chasey

2023 Suzanne L. Weakley

2021 R.A. Chasey

Mentha canadensis Wild mint

native
Perennial herb

2023 R.A. Chasey

2023 Suzanne L. Weakley

2021 R.A. Chasey

Mentha longifolia ssp. longifolia

non-native
Perennial herb

Mentha pulegium Pennyroyal

• invasive non-native
Perennial herb

2014 James Gonsman

2022 R.A. Chasey

2015 Chris Jaster

Mentha spicata Spearmint

non-native
Perennial herb

2022 Donald Burk

2023 Ron Vanderhoff

Mentha suaveolens Apple mint

non-native
Perennial herb

2018 George Butterworth

2021 Ron Vanderhoff

2018 George Butterworth

Mentha Xpiperita Peppermint

non-native
Perennial herb

2019 Ron Vanderhoff

1995 Saint Mary's College of California

Mentzelia affinis Yellow blazing star, Yellow comet, Yellowcomet

native
Annual herb

2022 Mike Russler

2020 David Greenberger

Mentzelia albicaulis Small flowered blazing star, White stemmed blazing star, White stemmed stickleaf

native
Annual herb

2023 Steve Ashcraft

2022 Mike Russler

2019 Diane Etchison

Mentzelia congesta Clustered blazing star, United blazingstar

native
Annual herb

2006 Steve Matson

2022 Steve Matson

Mentzelia crocea Saffron blazing star, Sierra blazingstar

native
Annual, Perennial herb

2022 Mike Russler

Mentzelia dispersa Bushy blazingstar, Nada stickleaf, Scattered blazing star

native
Annual herb

2022 Bob Sweatt

Mentzelia eremophila Pinyon blazing star, Pinyon blazingstar

• rare native
Annual, Perennial herb

2023 Mike Russler

2023 Ryan O'Dell

2023 Mike Russler

Mentzelia gracilenta Blazing star, Grass blazingstar, Slender blazing star

native
Annual herb

2022 Mary Conway

2019 Matt Berger

2019 David Greenberger

Mentzelia hirsutissima Hairy blazingstar, Hairy stickleaf

• rare native
Annual herb

2020 David Greenberger

2019 Matt Berger

2010 Jasmine J. Watts

Mentzelia involucrata Bracted blazing star, Sand blazing star, Whitebract blazingstar

native
Annual herb

2019 Susan McDougall

2019 Mary L Swanson

2019 Susan McDougall

Mentzelia jonesii Jones' blazing star, Jones' blazingstar

native
Annual herb, Vine

2014 Keir Morse

Mentzelia laevicaulis Blazing star, Giant blazingstar, Smooth stem blazing star

native
Perennial herb

2023 Mary Ann Machi

2015 Brad Singer

2023 Mary Ann Machi

Mentzelia lindleyi Lindley's blazing star, Lindley's blazingstar

native
Annual herb

2020 Karen Swift

2021 Vivian Krug Cotton

2020 Joerg Lohse

Mentzelia longiloba Many flowered mentzelia

native
Perennial herb

2019 Matt Berger

2004 Hartmut Wisch

Mentzelia multiflora ssp. longiloba Dune blazing star

native
Biennial herb

Mentzelia micrantha Chaparral blazing star, San Luis blazingstar, San Luis stick leaf

native
Annual herb

2019 Ron Vanderhoff

2023 Keir Morse

2019 Hailey Laskey

Mentzelia montana Mountain blazing star

native
Annual herb

2018 Diane Etchison

2021 R.A. Chasey

2018 Mary Merriman

Mentzelia multiflora Adonis blazingstar

native
Perennial herb

2010 Ron Wolf

2016 Wynn Anderson

Mentzelia nitens Shining blazing star, Shining blazingstar, Venus blazing star

native
Annual herb

2011 Steve Matson

2022 Steve Matson

Mentzelia obscura Pacific blazing star, Pacific blazingstar

native
Annual herb

2014 John Doyen

2016 Steven Thorsted

2012 James M. Andre

Mentzelia leucophylla Argus blazingstar, Mountain loving blazing star

native
Perennial herb

2019 Steve Matson

2006 James M. Andre

Mentzelia oreophila Argus blazingstar, Mountain loving blazing star

native
Perennial herb

2019 Steve Matson

2006 James M. Andre

Mentzelia pectinata San joaquin blazing star, San joaquin blazingstar

native
Annual herb

2021 Mike Russler

Mentzelia polita Elegant blazing star, Polished blazingstar

• rare native
Annual herb

2010 James M. Andre

2008 Steve Matson

2010 James M. Andre

Mentzelia pterosperma Wing seed blazing star, Wingseed blazingstar

• rare native
Annual herb

2006 Trent M. Draper

Mentzelia puberula Argus blazing star

• rare native
Perennial herb

2019 Matt Berger

Mentzelia reflexa Reflexed blazing star

native
Annual herb

2020 David Greenberger

Mentzelia torreyi Torrey's blazing star, Torrey's blazingstar

• rare native
Perennial herb

2019 Matt Berger

2022 R.A. Chasey

2019 Matt Berger

Mentzelia tricuspis Spinyhair blazingstar, Three pointed blazing star

• rare native
Annual herb

2019 Rico Ramirez

2005 James M. Andre

2010 James M. Andre

Mentzelia tridentata Dentate blazing star, Threetooth blazingstar

• rare native
Annual herb

2020 Matt Berger

Mentzelia veatchiana Veatch's blazing star

native
Annual herb

2019 Marisa Persaud

2019 Diane Etchison

2021 Mike Russler

Menyanthes trifoliata Bogbean, Buck bean, Buckbean

native
Perennial herb

MENYANTHACEAE

2020 David Greenberger

2023 Alaine Arslan

2019 Julie Kierstead Nelson

Menziesia ferruginea Mock azalea, Rusty menziesia

native
Shrub

2013 James Gonsman

2011 Jean Pawek

2015 Adrienne Simmons

Mercurialis annua Annual mercury

non-native
Annual herb

2022 Ramona Robison

2015 Julia King

2022 Ramona Robison

Mertensia bella Beautiful bluebells, Oregon lungwort

• rare native
Perennial herb

2008 Gerald Carr

Mertensia ciliata Ciliate lungwort, Streamside bluebells, Tall fringed bluebells

native
Perennial herb

2019 Matt Berger

2013 BOB CASE

Mertensia ciliata var. stomatechoides Streamside bluebells, Tall fringed bluebells

native
Perennial herb

2019 Matt Berger

2020 Bob Sweatt

1995 Saint Mary's College of California

Mertensia franciscana Franciscan bluebells

native
Perennial herb

Gerald and Buff Corsi 2007 California Academy of Sciences

2006 Robert Sivinski

Mertensia longiflora Long flower bluebells, Small bluebells

• rare native
Perennial herb

2005 Christopher L. Christie

2009 Matt Below

2020 Susan McDougall

Mertensia lanceolata var. nivalis Oblongleaf bluebells, Sagebrush bluebells

native
Perennial herb

2012 Judy and Barry Breckling

2013 John Doyen

2002 Larry Blakely

Mertensia oblongifolia Oblongleaf bluebells, Sagebrush bluebells

native
Perennial herb

2012 Judy and Barry Breckling

2013 John Doyen

2002 Larry Blakely

Mertensia oblongifolia var. nevadensis Sagebrush bluebells, Sierra bluebells

native
Perennial herb

2023 Gerald D. Carr

Mesembryanthemum crystallinum Common iceplant, Crystalline ice plant

• invasive non-native
Annual herb

2019 Naomi Goegan

2019 Nathan Taxel

2022 David Strauch

Mesembryanthemum nodiflorum Slender leaved ice plant, Slenderleaf iceplant, Small flowered iceplant

• invasive non-native
Annual herb

2009 Howard Clark

2021 Michelle Karle

2019 Jennifer Mo

Metasequoia glyptostroboides Dawn redwood

non-native
Tree

2022 David popp

2017 Gregory Arena

Micranthes aprica Sierra saxifrage

native
Perennial herb

2011 Steve Matson

2019 Bob Sweatt

2020 Bob Sweatt

Saxifraga aprica Sierra saxifrage

native
Perennial herb

2011 Steve Matson

2019 Bob Sweatt

2020 Bob Sweatt

Micranthes bryophora Bud saxifrage

native
Annual herb

2010 Steve Matson

Saxifraga bryophora Bud saxifrage

native
Annual herb

2010 Steve Matson

Micranthes californica Greene's saxifrage

native
Perennial herb

2016 Steve Matson

Saxifraga californica Greene's saxifrage

native
Perennial herb

2016 Steve Matson

Saxifraga virginiensis Greene's saxifrage

native
Perennial herb

2016 Steve Matson

Micranthes ferruginea Rusty hair saxifrage

native
Perennial herb

2022 Dana York

2010 Keir Morse

Saxifraga ferruginea Rusty hair saxifrage

native
Perennial herb

2022 Dana York

2010 Keir Morse

Micranthes howellii Howell's saxifrage

• rare native
Perennial herb

2024 Steve Conger

2023 Dana York

2024 Mary Ann Machi

Saxifraga howellii Howell's saxifrage

• rare native
Perennial herb

2024 Steve Conger

2023 Dana York

2024 Mary Ann Machi

Micranthes integrifolia Smooth leaf saxifrage

native
Perennial herb

2021 Art Clark

2020 David popp

Saxifraga integrifolia Smooth leaf saxifrage

native
Perennial herb

2021 Art Clark

2020 David popp

Micranthes marshallii Marshall's saxifrage

• rare native
Perennial herb

2022 Dana York

2017 Barrett Jeffery

Micranthes nidifica Peak saxifrage

native
Perennial herb

2024 Mary Ann Machi

2021 Dana York

2022 Steve Conger

Saxifraga nidifica var. nidifica Peak saxifrage

native
Perennial herb

2024 Mary Ann Machi

2021 Dana York

2022 Steve Conger

Micranthes odontoloma Brook saxifrage

native
Perennial herb

2004 Steve Matson

Saxifraga odontoloma Brook saxifrage

native
Perennial herb

2004 Steve Matson

Micranthes oregana Bog saxifrage

native
Perennial herb

2003 Steve Matson

2020 Bob Sweatt

2018 Bill Haley

Saxifraga oregana Bog saxifrage

native
Perennial herb

2003 Steve Matson

2020 Bob Sweatt

2018 Bill Haley

Micranthes tolmiei Tolmie's saxifrage

native
Perennial herb

2009 Steve Matson

2016 Steve Matson

Saxifraga tolmiei Tolmie's saxifrage

native
Perennial herb

2009 Steve Matson

2016 Steve Matson

Microlepia strigosa Palapalai

non-native
Fern

Micromonolepis pusilla Dwarf monolepis

• rare native
Annual herb

1998 Dan Post

2007 Steve Matson

Micropus amphibolus Mount diablo cottonseed, Mt. diablo cottonweed

• rare native
Annual herb

2023 R.A. Chasey

2022 R.A. Chasey

2017 Tim Hyland

Micropus californicus Cotton top, Micropus, Q tips

native
Annual herb

2006 Steve Matson

2021 Ron Vanderhoff

Micropus californicus var. californicus; Cotton top, Micropus, Q tips

native
Annual herb

Micropus californicus var. californicus;

2006 Steve Matson

2021 Ron Vanderhoff

Micropus californicus var. californicus Q tips, Slender cottonweed

native
Annual herb

2006 Steve Matson

2021 Ron Vanderhoff

2016 Steve Matson

Microseris acuminata Needle microseris, Sierra foothill silverpuffs, Sierra foothills microseris

native
Annual herb

2018 Julie Kierstead Nelson

2024 David popp

Microseris bigelovii Coast microseris, Coastal silverpuffs

native
Annual herb

2023 Leslie Flint

2022 R.A. Chasey

2011 Toni Corelli

Microseris borealis Apargidium, Bog microseris, Northern microseris

• rare native
Perennial herb

Gerald and Buff Corsi 2013 California Academy of Sciences

2014 Wynn Anderson

Microseris campestris San joaquin microseris, San joaquin silverpuffs

native
Annual herb

2022 Cynthia Powell

2022 Dianne Lake

Microseris douglasii Douglas' microseris, Douglas' silverpuffs

native
Annual herb

2017 Steve Matson

Microseris douglasii ssp. douglasii Douglas' microseris, Douglas' silverpuffs

native
Annual herb

2017 Steve Matson

Microseris douglasii ssp. platycarpha Douglas' silverpuffs, Small flowered microseris

• rare native
Annual herb

2017 Barbara Boethling

2017 Tania Asef

2017 Barbara Boethling

Microseris douglasii ssp. tenella Douglas' silverpuffs, Short scaled microseris

native
Annual herb

2022 Helen Hancock

2019 Diane Renshaw

2022 Helen Hancock

Microseris elegans Elegant silverpuffs

native
Annual herb

2011 Zoya Akulova

null

2004 Laura Ann Eliassen

Microseris laciniata Cut leaved scorzonella, Cutleaf silverpuffs

native
Perennial herb

2013 Gerald Carr

2008 Gerald Carr

Microseris laciniata ssp. detlingii Detling's silverpuffs

• rare native
Perennial herb

2018 Scot Loring

2022 Joe Broberg

2018 Scot Loring

Microseris laciniata ssp. laciniata Cut leaved scorzonella, Cutleaf silverpuffs

native
Perennial herb

2008 Gerald Carr

Microseris howellii Siskiyou microseris

native
Perennial herb

2023 Dana York

Microseris nutans Nodding microceris, Nodding scorzonella, Perennial nodding microseris

native
Perennial herb

2020 Bob Sweatt

2022 Steve Matson

2020 Bob Sweatt

Microseris paludosa Marsh scorzonella, Marsh silverpuffs

• rare native
Perennial herb

2023 R.A. Chasey

2022 Irene Rosen

2023 Mary Conway

Microseris sylvatica Sylvan scorzonella

• rare native
Perennial herb

2020 Mike Russler

2023 Mike Russler

Microsteris gracilis Slender phlox

native
Annual herb

2003 Steve Matson

2016 Steve Matson

2003 Steve Matson

Microsteris gracilis var. gracilis Slender phlox

native
Annual herb

2003 Steve Matson

2016 Steve Matson

2003 Steve Matson

Phlox gracilis Slender phlox

native
Annual herb

2003 Steve Matson

2016 Steve Matson

2003 Steve Matson

Mielichhoferia elongata Elongate copper moss

• rare native
Moss

MNIACEAE

2012 John Game

2012 calbryos group

Mielichhoferia shevockii Shevock's copper moss

• rare native
Moss

MIELICHHOFERIACEAE

2017 John Game

Mimetanthe pilosa Snouted monkey flower

native
Annual herb

2017 Steve Matson

2019 Matt Berger

2017 Steve Matson

Mimulus pilosus Snouted monkey flower

native
Annual herb

2017 Steve Matson

2019 Matt Berger

2017 Steve Matson

Mimulus cusickii Cusick's monkeyflower

native
Annual herb

2007 John Game

2001 Steve Schoenig

Mimulus glabratus var. jamesii Roundleaf monkeyflower

native
Perennial herb (rhizomatous)

2016 Keir Morse

Mimulus rattanii ssp. decurtatus Santa cruz county monkeyflower

• rare native
Annual herb

2018 Barry Thomson

2001 Steve Schoenig

Mimulus ringens Allegheny monkeyflower, Typical monkeyflower

native
Perennial herb

2006 Louis-M. Landry

2016 Keir Morse

2010 Louis-M. Landry

Mimulus ringens var. ringens Allegheny monkeyflower, Typical monkeyflower

native
Perennial herb

2006 Louis-M. Landry

2016 Keir Morse

2010 Louis-M. Landry

Minuartia howellii Howell's sandwort, Howell's stitchwort

native
Perennial herb

2008 Nathan Bello

Arenaria obtusiloba Alpine sandwort, Twinflower sandwort

• rare native
Perennial herb

2014 Steve Matson

2010 Steve Matson

2014 Steve Matson

Lidia obtusiloba Alpine sandwort, Twinflower sandwort

• rare native
Perennial herb

2014 Steve Matson

2010 Steve Matson

2014 Steve Matson

Minuartia obtusiloba Alpine sandwort, Twinflower sandwort

• rare native
Perennial herb

2014 Steve Matson

2010 Steve Matson

2014 Steve Matson

Minuartia rosei Peanut sandwort, Peanut stitchwort

native
Perennial herb

2017 Julie A. Kierstead

2019 Steve Matson

Minuartia stolonifera Scott mtn. sandwort, Stolon sandwort

native
Perennial herb

2021 Julie A. Kierstead

1996 Dean Wm. Taylor

Mirabilis albida Dwarf four o'clock

native
Perennial herb

2009 James M. Andre

2015 Barry Breckling

2006 Chris Wagner, SBNF

Mirabilis pumila Dwarf four o'clock

native
Perennial herb

2009 James M. Andre

2015 Barry Breckling

2006 Chris Wagner, SBNF

Mirabilis alipes Winged four o'clock

native
Perennial herb

2011 Steve Matson

2019 Matt Berger

Mirabilis coccinea Red four o'clock, Scarlet four o'clock

• rare native
Perennial herb

2005 James M. Andre

2014 Aaron Schusteff

Mirabilis greenei Greene's four o'clock

• rare native
Perennial herb

2019, Jeff Stone

2011 Jesse E. D. Miller

2017 Sheri Hagwood

Mirabilis jalapa Four o'clock, Marvel of peru, Wishbone bush

non-native
Perennial herb

2020 Diane Etchison

2020 Nathan Taxel

Mirabilis laevis Desert wishbone bush

native
Perennial herb

2020 Steve Matson

2013 Steve Matson

Mirabilis laevis var. crassifolium Desert wishbone bush

native
Perennial herb

2020 Steve Matson

2013 Steve Matson

Mirabilis laevis var. viscosa Desert wishbone bush

native
Perennial herb

2020 Steve Matson

2013 Steve Matson

Mirabilis laevis var. crassifolia California four o'clock

native
Perennial herb

2014 Steve Matson

Mirabilis laevis var. laevis California four o'clock

native
Perennial herb

2014 Steve Matson

Mirabilis bigelovii var. retrorsa Wishbone bush

native
Perennial herb

2020 Steve Matson

2013 Steve Matson

Mirabilis laevis var. retrorsa Wishbone bush

native
Perennial herb

2020 Steve Matson

2013 Steve Matson

Mirabilis bigelovii var. bigelovii Wishbone bush

native
Perennial herb

2021 Steve Matson

Mirabilis laevis var. villosa Wishbone bush

native
Perennial herb

2021 Steve Matson

Mirabilis linearis Narrow leaf four o'clock, Narrowleaf four o'clock

non-native
Perennial herb

2014 John Doyen

2015 Barry Breckling

Mirabilis multiflora Colorado four o'clock, Giant four o'clock

native
Perennial herb

2013 Steve Matson

2021 Mike Russler

2013 Steve Matson

Mirabilis multiflora var. multiflora Colorado four o'clock, Giant four o'clock

native
Perennial herb

2013 Steve Matson

2021 Mike Russler

2013 Steve Matson

Mirabilis multiflora var. glandulosa Colorado four o'clock, Giant four o'clock

native
Perennial herb

2013 Steve Matson

Mirabilis multiflora var. pubescens Colorado four o'clock, Desert four o'clock

native
Perennial herb

2008 Steve Matson

Mirabilis nyctaginea Heart leaf four o'clock, Heartleaf four o'clock

non-native
Perennial herb

2011 RT Hawke

Mirabilis tenuiloba Longlobe four o'clock, Slender lobed four o'clock

• rare native
Perennial herb

2020 David Greenberger

2017 Keir Morse

Miscanthus sinensis Chinese silvergrass

non-native
Perennial grass

2018 MCOSD Restoration Crew

2020 MCOSD EDRR

2018 MCOSD Restoration Crew

Mitella stauropetala Smallflower miterwort

non-native
Perennial herb

Mitella caulescens Leafy-stemmed mitrewort

• rare native
Perennial herb

2017 Steve Matson

Mitellastra caulescens Leafy-stemmed mitrewort

• rare native
Perennial herb

2017 Steve Matson

Modiola caroliniana Carolina bristle mallow, Carolina bristlemallow

non-native
Perennial herb

2020 David Wolfson

2020 Asa B Spade

2019 Ron Vanderhoff

Moehringia macrophylla Large leaved sandwort, Largeleaf sandwort

native
Perennial herb

2019 Glenn Fine

2018 Matt Berger

2016 Mary Merriman

Moenchia erecta Upright chickweed

non-native
Annual herb

2009 Gerald Carr

Moenchia erecta ssp. erecta Moenchia

non-native
Annual herb

2009 Gerald Carr

Mollugo cerviana Carpet weed, Threadstem carpetweed

non-native
Annual herb

MOLLUGINACEAE

2022 Steve Matson

Mollugo verticillata Green carpetweed, Indian chickweed

non-native
Annual herb

MOLLUGINACEAE

2023 Ron Vanderhoff

2020 Sara Sweet

Moluccella laevis Shell flower, Shellflower

non-native
Annual herb

2005 Louis-M. Landry

Momordica charantia Balsampear

non-native
Annual herb, Vine

Monarda citriodora Lemon beebalm

non-native
Annual, Biennial, Perennial herb

2008 Ron Thomas

Monarda pectinata Bee balm, Pony beebalm

• rare native
Annual herb

2013 Trent M. Draper

Monardella australis Southern monardella, Southern mountain monardella

native
Perennial herb

2019 Diane Etchison

2019 Aaron Echols

Monardella australis ssp. australis Southern mountain monardella

native
Perennial herb

2019 Diane Etchison

Monardella australis ssp. cinerea Gray monardella

• rare native
Perennial herb (rhizomatous)

2019 Aaron Echols

Monardella beneolens Sweet smelling monardella

• rare native
Perennial herb (rhizomatous)

2020 Matt Berger

Monardella breweri Brewer's monardella

native
Annual herb

2012 Terrence Gosliner

2017 Diane Etchison

2020 Bob Sweatt

Monardella breweri ssp. lanceolata Mustang mint

native
Annual herb

2022 Diane Etchison

2018 David popp

2022 Mike Russler

Monardella candicans Sierra monardella

• rare native
Annual herb

2002 Dean Wm. Taylor

Monardella douglasii Douglas' monardella

native
Annual herb

2019 David Greenberger

2022 Mojgan Mahdizadeh

2023 Ryan O'Dell

Monardella exilis Desert monardella, Mojave monardella

native
Annual herb

2023 Bob Steele

2020 Manzanita Dictionary

Monardella follettii Follett's monardella

• rare native
Shrub

2020 Cheryl Ballantyne

2019 David Greenberger

Monardella hypoleuca Thickleaf monardella, White leaf monardella

native
Perennial herb

2019 Manzanita Dictionary

2021 Ron Vanderhoff

2020 Bryant Baker

Monardella hypoleuca ssp. intermedia White leaf monardella

• rare native
Perennial herb

2019 Manzanita Dictionary

2023 Ron Vanderhoff

2016 Ron Vanderhoff

Monardella hypoleuca ssp. lanata Felt leaved monardella, Feltleaf monardella

• rare native
Perennial herb (rhizomatous)

2021 Ron Vanderhoff

2017 Michelle Tollett

Monardella linoides Flax like monardella, Flaxleaf monardella, Narrow leaved monardella

native
Perennial herb

2022 Steve Matson

Monardella linoides ssp. linoides Flax like monardella, Flaxleaf monardella

native
Perennial herb

2012 Keir Morse

Monardella linoides ssp. oblonga Flax like monardella, Flaxleaf monardella

• rare native
Perennial herb (rhizomatous)

2011 Keir Morse

Monardella linoides ssp. sierrae Narrow leaved monardella

native
Perennial herb

2022 Steve Matson

Monardella macrantha Hummingbird monardella, Red monardella

native
Perennial herb

2019 Diane Etchison

2022 Aaron Echols

2017 Joey Santore

Monardella macrantha ssp. hallii Hall's monardella

• rare native
Perennial herb (rhizomatous)

2019 Diane Etchison

2022 Aaron Echols

Monardella macrantha ssp. macrantha Hummingbird monardella, Red monardella

native
Perennial herb

2016 Scott Yarger

2012 Terrence Gosliner

2014 Aaron Schusteff

Monardella nana Little monardella, Yellow monardella

native
Perennial herb

2019 Matt Berger

Monardella nana ssp. 1 Little monardella, Yellow monardella

native
Perennial herb

2019 Matt Berger

Monardella odoratissima Desert mint, Mountain monardella, Coyote-Mint

native
Perennial herb

2010 Steve Matson

2017 Steve Matson

Monardella odoratissima ssp. pallid Desert mint, Mountain monardella, Coyote-Mint

native
Perennial herb

2010 Steve Matson

2017 Steve Matson

Monardella glauca Mountain mint, Mountain pennyroyal

native
Perennial herb

2010 Steve Matson

2006 Steve Matson

Monardella odoratissima ssp. glauca Mountain mint, Mountain pennyroyal

native
Perennial herb

2010 Steve Matson

2006 Steve Matson

Monardella odoratissima ssp. odoratissima Mountain monardella

native
Perennial herb

Monardella odoratissima ssp. odoratissima

2009 Keir Morse

Monardella odoratissima ssp. pallida Pale mountain monardella, Pallid mountain monardella

native
Perennial herb

2019 Steve Matson

Monardella palmeri Palmer's monardella

• rare native
Perennial herb (rhizomatous)

2001 CDFA

2012 Chris Winchell

Monardella purpurea Serpentine monardella, Siskiyou monardella

native
Perennial herb

2016 Steve Matson

2022 R.A. Chasey

Monardella robisonii Robison's monardella, Rock pennyroyal

• rare native
Perennial herb (rhizomatous)

2008 James Andre

Monardella saxicola Rock monardella

• rare native
Subshrub

2004 Naomi Fraga

Monardella sheltonii Coyote mint, Shelton's coyote mint, Shelton's monardella

native
Perennial herb

2021 Dana York

Monardella sinuata var. nigrescens Curly leaved monardella

native
Annual herb

2020 Melissa Mooney

1980 Barbara B Renshaw

2014 James Gonsman

Monardella sinuata ssp. nigrescens

• rare native
Annual herb

2014 James Gonsman

2022 Charles Russell

2017 Adam Chasey

Monardella sinuata ssp. sinuata

• rare native
Annual herb

2016 John Moule

2020 Melissa Mooney

2017 Keir Morse

Monardella stebbinsii Feather river monardella, Stebbins's monardella

• rare native
Perennial herb (rhizomatous)

2019 David popp

2006 Dr. Mark S. Brunell

2017 David popp

Monardella stoneana Jennifer's monardella

• rare native
Perennial herb

2010 Anna Bennett

Monardella undulata Curly leaved monardella, Curlyleaf monardella

native
Annual herb

2012 Terrence Gosliner

2020 Adonis Tate

2012 Terrence Gosliner

Monardella undulata ssp. arguelloensis Curly leaved monardella

• rare native
Annual herb

2012 CNPS, San Luis Obispo Chapter

Monardella undulata ssp. crispa Crisp monardella

• rare native
Annual herb

2012 Terrence Gosliner

Lyda Edge and CNPS

1999 Christopher L. Christie

Monardella frutescens San luis obispo monardella

• rare native
Annual herb

2012 Terrence Gosliner

2012 John Sayers

1972 California Native Plant Society

Monardella undulata ssp. undulata San luis obispo monardella

• rare native
Annual herb

2012 Terrence Gosliner

2012 John Sayers

1972 California Native Plant Society

Monardella venosa Veiny monardella

• rare native
Annual herb

2020 David popp

2007 George W. Hartwell

Monardella villosa Coyote mint

native
Perennial herb

2020 Mary Sue Ittner

2019 Patrick Furtado

2019 Patricia Ashe

Monardella villosa ssp. franciscana San francisco coyote mint

native
Perennial herb

2022 Suzanne L. Weakley

2015 James Gonsman

2022 Cynthia Powell

Monardella villosa ssp. obispoensis San luis obispo coyote mint

native
Perennial herb

2019 David Wolfson

2020 Dee Shea Himes

Monardella villosa ssp. villosa Coyote mint

native
Perennial herb

2021 Ken Lunders

2012 Terrence Gosliner

2015 James Gonsman

Monardella viminea Willowy monardella

• rare native
Perennial herb

2015 Keir Morse

2011 Anna Bennett

2011 CNPS, San Luis Obispo Chapter

Monardella viridis Green monardella

• rare native
Perennial herb

2019 R.A. Chasey

2020 Paul Aigner

Monardella viridis ssp. viridis Green monardella

• rare native
Perennial herb

2019 R.A. Chasey

2020 Paul Aigner

Moneses uniflora Oneflower wintergreen, Single delight, Woodnymph

• rare native
Perennial herb

2018 Jonathan Lee

2011 Louis-M. Landry

2015 Dana York

Monochoria vaginalis Heart shape false pickerelweed, Heartshape false pickerelweed

• invasive non-native
Perennial herb

2022 Timothy Blank

Monolepis nuttalliana Nuttall's poverty weed, Nuttall's povertyweed

native
Annual herb

2020 Matt Berger

2017 Michelle Tollett

Monolopia congdonii San joaquin woollythreads

• rare native
Annual herb

2022 Mike Russler

2020 David Greenberger

2024 Ryan O'Dell

Monolopia gracilens Woodland monolopia

• rare native
Annual herb

2015 Al Keuter

2023 R.A. Chasey

2019 Ken Hickman

Monolopia lanceolata Common monolopia

native
Annual herb

2016 Steve Matson

Monolopia major Cupped monolopia

native
Annual herb

2019 Susan McDougall

2022 Ryan O'Dell

Monolopia stricta Crum's monolopia

native
Annual herb

2020 Matt Berger

2020 David Greenberger

2016 Steve Matson

Monoptilon bellidiforme Small desert star

native
Annual herb

2010 Steve Matson

2009 Steve Matson

Monoptilon bellioides Desert star, Mojave desert star, Mojave desertstar

native
Annual herb

2016 Steve Matson

2017 Diane Etchison

2019 Barbara Peck

Hypopitys monotropa Pinesap

native
Perennial herb (mycoparasitic)

2020 R.A. Chasey

2010 Keir Morse

2016 Wynn Anderson

Monotropa hypopitys Pinesap

native
Perennial herb (mycoparasitic)

2020 R.A. Chasey

2010 Keir Morse

2016 Wynn Anderson

Monotropa uniflora Ghost pipe

• rare native
Perennial herb (mycoparasitic)

2022 Mary Ann Machi

2019 Jonathan Lee

2022 Mary Ann Machi

Montia chamissoi Spring beauty, Toad lily, Water minerslettuce

native
Perennial herb

2003 Steve Matson

2016 Steve Matson

Montia diffusa Diffuse miner's lettuce, Spreading minerslettuce

native
Annual herb

2020 Alexandra Kookootsedes

2018 Alexandra Kookootsedes

Montia fontana Annual water minerslettuce, Water chickweed, Water montia

native
Annual herb

2023 Alaine Arslan

2006 Steve Matson

Montia howellii Howell's minerslettuce, Howell's montia

• rare native
Annual herb

2019 Jonathan Lee

2014 Sierra Pacific Industries

2019 Gabe Cashman

Montia linearis Linear leaved montia, Narrow leaved water chickweed, Narrowleaf minerslettuce

native
Annual herb

2003 Steve Matson

2015 David popp

Montia parvifolia Littleleaf minerslettuce, Showy rock montia

native
Perennial herb

2021 Steve Matson

2017 Steve Matson

Morella californica California wax myrtle

native
Tree, Shrub

MYRICACEAE

2019 Michelle Karle

2020 Kim Cabera

2020 Susan McDougall

Myrica californica California wax myrtle

native
Tree, Shrub

MYRICACEAE

2019 Michelle Karle

2020 Kim Cabera

2020 Susan McDougall

Mortonia utahensis Utah mortonia

• rare native
Shrub

2019 Matt Berger

2020 Matt Berger

2019 Matt Berger

Morus alba White mulberry

non-native
Tree

2021 Donald Burk

2022 Jennifer Mo

Morus nigra Black mulberry

non-native
Tree

Morus rubra Red mulberry

non-native
Tree

Mucronea californica California spineflower

• rare native
Annual herb

2020 David Greenberger

2023 Matt Berger

Mucronea perfoliata Perfoliate spineflower

native
Annual herb

2020 Matt Berger

2019 Matt Berger

2022 Ryan O'Dell

Muehlenbeckia complexa Mattress vine

non-native
Vine

2021 Jennifer Mo

2009 Neal Kramer

2015 Jonathan "Coty" Sifuentes-Winter

Muhlenbergia andina Foxtail muhly

native
Perennial grass

2002 Steve Matson

2004 Steve Matson

2008 Keir Morse

Muhlenbergia appressa Appressed muhly, Devils canyon muhly

• rare native
Annual grass

2006 Steve Matson

Muhlenbergia arsenei Navajo muhly, Tough muhly

• rare native
Perennial grass (rhizomatous)

2011 Steve Matson

Muhlenbergia asperifolia Scratchgrass

native
Perennial grass

2017 Steve Matson

2008 Steve Matson

Muhlenbergia californica California muhly

• rare native
Perennial grass (rhizomatous)

2011 Steve Matson

2021 Joy England

Muhlenbergia emersleyi bullgrass, Gooding's Muhly

native
Perennial grass

2016 Keir Morse

Muhlenbergia filiformis Pullup muhly, Slender muhly

native
Annual, Perennial grass

2021 R.A. Chasey

2020 John Rawlings

2020 Susan McDougall

Muhlenbergia fragilis Delicate muhly

• rare native
Annual grass

2011 Steve Matson

Muhlenbergia jonesii Jones' muhly, Modoc muhly

• rare native
Perennial grass

2023 Matt Berger

2011 Steve Matson

2023 Matt Berger

Muhlenbergia mexicana Mexican muhly

native
Perennial grass

2016 Jeffery Barrett

2022 David popp

2009 Zoya Akulova

Muhlenbergia microsperma Annual muhly, Littleseed muhly

native
Annual grass

2017 Ron Vanderhoff

2019 Ron Vanderhoff

2023 Ron Vanderhoff

Muhlenbergia minutissima Annual muhly

native
Annual grass

2011 Keir Morse

Muhlenbergia montana Mountain muhly

native
Perennial grass

2009 Steve Matson

Muhlenbergia pauciflora Few flowered muhly, New mexico muhly

• rare native
Perennial grass (rhizomatous)

2011 Keir Morse

Muhlenbergia porteri Bush muhly, Porter's muhly

native
Perennial grass

2002 Dean Wm. Taylor

2004 James M. Andre

2005 James M. Andre

Muhlenbergia richardsonis Mat muhly, Matted muhly, Richardson's muhly

native
Perennial grass

2021 Steve Matson

2022 Steve Matson

Muhlenbergia rigens Deergrass

native
Perennial grass

2004 Steve Matson

2018 Cynthia Powell

2022 Ron Vanderhoff

Muhlenbergia schreberi Nimblewell, Nimblewill

• invasive non-native
Perennial grass

2011 Steve Matson

Muhlenbergia utilis Aparejo grass, Aparejograss

native
Perennial grass

2021 Kristen Nelson

2006 Trent M. Draper

Muilla coronata Crowned muilla

• rare native
Perennial herb (bulb)

2022 Steve Matson

Muilla maritima Common muilla, Sea muilla

native
Perennial herb

2017 Steve Matson

Muilla transmontana Great basin muilla, Inland muilla

native
Perennial herb

2008 Steve Matson

2019 Bob Sweatt

Munroa squarrosa False buffalo grass

• rare native
Annual grass

2011 Keir Morse

Muntingia calabura Strawberrytree

non-native
Tree, Shrub

ELAEOCARPACEAE

2010 Moorea Biocode

Munzothamnus blairii Blair's wirelettuce

• rare native
Shrub

2011 Neal Kramer

2018 Susan McDougall

2011 Neal Kramer

Stephanomeria blairii Blair's wirelettuce

• rare native
Shrub

2011 Neal Kramer

2018 Susan McDougall

2011 Neal Kramer

Muscari botryoides Common grape hyacinth

non-native
Perennial herb

2022 Mike Russler

2021 Diana Wahl

Myoporum laetum Lollypop tree, Ngaio tree

• invasive non-native
Tree, Shrub

2018 Ron Vanderhoff

2017 James Bailey

2022 Ron Vanderhoff

Myoporum parvifolium Slender myoporum

non-native
Tree, Shrub

2016 James Bailey

2019 David Wolfson

2019 Robert Byrnes

Myoporum sandwicense Naio

non-native
Tree, Shrub

Myosotis discolor Changing forget me not, yellow and blue forget-me-not

non-native
Annual herb

2017 Ron Vanderhoff

2023 Donald Burk

2019 David Greenberger

Myosotis latifolia Broadleaf forget me not, Forget me not, Wide leaved forget me not

• invasive non-native
Perennial herb

2019 Cynthia Powell

2018 Tim Lewis

2022 Ecological Concerns Inc

Myosotis laxa Bay forget me not

native
Perennial herb

2022 Bob Sweatt

2021 Bob Sweatt

Myosotis micrantha Small flowered forget me not

non-native
Annual herb

Myosotis arvensis True forget me not, Yelloweye forgetmenot

non-native
Perennial herb

2011 Jeff Abbas

2014 David popp

2011 Louis-M. Landry

Myosotis scorpioides True forget me not, Yelloweye forgetmenot

non-native
Perennial herb

2011 Jeff Abbas

2014 David popp

2011 Louis-M. Landry

Myosotis sylvatica Woodland forget me not

• invasive non-native
Perennial herb

2004 Dr. Amadej Trnkoczy

2011 Louis-M. Landry

Myosoton aquaticum Giantchickweed

non-native
Annual, Perennial herb

Myosurus apetalus Bristly mousetail, Mouse tail

native
Annual herb

2003 Steve Matson

2017 Jim Morefield

Myosurus cupulatus Arizona mousetail, Desert mouse tail

native
Annual herb

2005 Keir Morse

Myosurus minimus Common mouse tail, Little mouse tail, Tiny mousetail

native
Annual herb

2022 Dianne Lake

2024 Cynthia Powell

2024 Kevin Dixon

Myosurus minimus ssp. apus Little mouse tail

• rare native
Annual herb

2017 Tania Asef

2021 Kipp Pow

Myosurus sessilis Tiny mouse tail, Vernal pool mousetail

native
Annual herb

2015 Julia King

2003 George W. Hartwell

2013 Zoya Akulova

Myrica hartwegii Mountain wax myrtle, Sierra bayberry, Sierra sweet bay

• rare native
Shrub

MYRICACEAE

2019 Matt Berger

Myriophyllum aquaticum Parrot feather watermilfoil, Parrot's feather, Parrotfeather

• invasive non-native
Perennial herb (aquatic)

2018 Sarah Inman

2016 Ross Hinderer

2019 Patrick Furtado

Myriophyllum hippuroides Milfoil, Western milfoil, Western watermilfoil

native
Perennial herb (aquatic)

2002 Dean Wm. Taylor

2013 Jake Ruygt

Myriophyllum sibiricum Shortspike watermilfoil, Siberian milfoil, Siberian water milfoil

native
Perennial herb (aquatic)

2008 Steve Matson

2015 Steve Matson

Myriophyllum spicatum American milfoil, Eurasian milfoil, Spike watermilfoil

• invasive non-native
Perennial herb

2020 Ron Vanderhoff

Cheilanthes clevelandii Cleveland's lip fern

native
Fern

2020 Bonnie Nickel

2014 Steve Matson

Myriopteris clevelandii Cleveland's lip fern

native
Fern

2020 Bonnie Nickel

2014 Steve Matson

Cheilanthes cooperae Cooper's lip fern

native
Fern

2020 Matt Berger

2018 John Game

2018 Matt C. Berger

Myriopteris cooperae Cooper's lip fern

native
Fern

2020 Matt Berger

2018 John Game

2018 Matt C. Berger

Cheilanthes covillei Coville's lip fern

native
Fern

2019 Steve Matson

Myriopteris covillei Coville's lip fern

native
Fern

2019 Steve Matson

Cheilanthes feei Slender lip fern

native
Fern

2008 Steve Matson

Cheilanthes gracillima Lace lip fern

native
Fern

2021 John Rawlings

2021 R.A. Chasey

2021 Steve Matson

Myriopteris gracillima Lace lip fern

native
Fern

2021 John Rawlings

2021 R.A. Chasey

2021 Steve Matson

Cheilanthes intertexta Coastal lip fern

native
Fern

2018 Adam Chasey

2020 R.A. Chasey

Cheilanthes newberryi Newberry's lip fern

native
Fern

2021 Ron Vanderhoff

2023 Julia Markey

Cheilanthes parryi Parry's lip fern

native
Fern

2019 Steve Matson

2006 Steve Matson

Myriopteris parryi Parry's lip fern

native
Fern

2019 Steve Matson

2006 Steve Matson

Cheilanthes viscida Viscid lace fern

native
Fern

2019 Matt Berger

2012 Keir Morse

2020 Matt Berger

Cheilanthes wootonii Wooton's lace fern

• rare native
Perennial herb

2010 James M. Andre

Myriopteris wootonii Wooton's lace fern

• rare native
Perennial herb

2010 James M. Andre

Myrtus communis Myrtle

non-native
Shrub

2023 Ramona Robison

2022 Leah Lord

2022 Dianne Dollente

Myurella julacea Myurella moss

• rare native
Moss

PTERIGYNANDRACEAE

2013 Scot Loring

Najas guadalupensis Guadalupe water nymph, Southern waternymph

native
Annual herb

2020 Ron Vanderhoff

2021 Ron Vanderhoff

Najas marina Marine water nymph, Spiny naiad

native
Annual herb

2020 Ron Vanderhoff

Najas minor Brittle Waternymph

native
Annual herb

2010 Cynthia Powell

Nama aretioides Ground nama, Purple nama

native
Annual herb

2011 Steve Matson

Nama aretioides var. multiflorum Ground nama, Many flowered purple nama

native
Annual herb

2022 Dana York

2008 Steve Matson

2019 Jim Morefield

Nama californica California Fiddleleaf

native
Annual herb

2020 Matt Berger

2008 Steve Matson

2019 Matt Berger

Nama californicum California Fiddleleaf

native
Annual herb

2020 Matt Berger

2008 Steve Matson

2019 Matt Berger

Nama demissa Purplemat

native
Annual herb

2020 Matt Berger

2001 John Game

2019 Matt Berger

Nama demissum Purplemat

native
Annual herb

2020 Matt Berger

2001 John Game

2019 Matt Berger

Nama demissa var. covillei Coville's Purplemat

• rare native
Annual herb

2020 Matt Berger

Nama demissum var. covillei Coville's Purplemat

• rare native
Annual herb

2020 Matt Berger

Nama demissa var. demissa Purplemat

native
Annual herb

2010 Steve Matson

2005 Steve Matson

2019 Matt Berger

Nama demissum var. demissum Purplemat

native
Annual herb

2010 Steve Matson

2005 Steve Matson

2019 Matt Berger

Nama densum Leafy Nama

native
Annual herb

2020 Steve Laymon

2015 Steve Matson

Nama densa var. densa Leafy Nama

native
Annual herb

2015 Steve Matson

Nama densum var. densum Leafy Nama

native
Annual herb

2015 Steve Matson

Nama densum var. parviflorum Leafy Nama

native
Annual herb

2011 Gerald Carr

Nama depressum Narrow Leaf Nama

native
Annual herb

2014 Neal Kramer

2023 Bob Steele

2009 Jim Morefield

Nama dichotomum var. dichotomum Forked purple mat

• rare native
Annual herb

2013 Don Davis

2011 James M. Andre

2011 Keir Morse

Nama hispidum

native
Annual herb

2015 Fred Melgert / Carla Hoegen

2020 Fred Melgert / Carla Hoegen

Nama hispidum var. spathulatum Purplemat

native
Annual herb

2015 Fred Melgert / Carla Hoegen

Nama pusilla Small Leaf Nama

native
Annual herb

2020 Matt Berger

2019 Steve Matson

2017 Steve Matson

Nama pusillum Small Leaf Nama

native
Annual herb

2020 Matt Berger

2019 Steve Matson

2017 Steve Matson

Nama rothrockii Rothrock's fiddleleaf, Rothrock's nama

native
Perennial herb

2010 Steve Matson

Nama stenocarpa Mud nama

• rare native
Annual herb

2017 Ron Vanderhoff

2021 Ron Vanderhoff

Nama stenocarpum Mud nama

• rare native
Annual herb

2017 Ron Vanderhoff

2021 Ron Vanderhoff

Nandina domestica Sacred bamboo

non-native
Shrub

2019 Randy Huey

Narcissus pseudonarcissus Daffodil

non-native
Perennial herb (bulb)

2019 Colleen Herr

2019 Tomas Zavala

2020 Diana Wahl

Narcissus tazetta Cream narcissus

non-native
Perennial herb (bulb)

2016 Ron Vanderhoff

2022 Ramona Robison

2020 Diana Wahl

Narthecium californicum California bog asphodel

native
Perennial herb

NARTHECIACEAE

2014 Steve Matson

2019 Michael Kauffmann

2021 Pete Veilleux

Stipa tenuissima Finestem needlegrass, Mexican feathergrass

• invasive non-native
Perennial grass

2020 Ron Vanderhoff

2018 michelle peruzzi

2020 Ron Vanderhoff

Nasturtium gambelii Gambel's yellowcress

• rare native
Perennial herb

2010 Chris Winchell

Rorippa gambelii Gambel's yellowcress

• rare native
Perennial herb

2010 Chris Winchell

Nasturtium officinale Watercress

native
Perennial herb (aquatic)

2019 Patrick Furtado

2019 Diane Etchison

2012 Steve Matson

Rorippa nasturtium-aquaticum Watercress

native
Perennial herb (aquatic)

2019 Patrick Furtado

2019 Diane Etchison

2012 Steve Matson

Navarretia atractyloides Holly leaf navarretia, Hollyleaf pincushionplant

native
Annual herb

2019 Diane Etchison

2010 George Butterworth

2019 Ken Hickman

Navarretia breweri Brewer's navarretia

native
Annual herb

2020 Bob Sweatt

2023 R.A. Chasey

2019 Steve Matson

Gilia capillaris Miniature gilia

native
Annual herb

2004 Steve Matson

2003 Steve Matson

Navarretia capillaris Miniature gilia

native
Annual herb

2004 Steve Matson

2003 Steve Matson

Navarretia cotulifolia Broad leaved navarretia, Cotulaleaf pincushionplant

• rare native
Annual herb

2022 Hannah Aclufi

2023 R.A. Chasey

Navarretia divaricata Divaricate navarretia, Mountain navarretia

native
Annual herb

2004 Steve Matson

Navarretia divaricata ssp. divaricata Divaricate navarretia, Mountain navarretia

native
Annual herb

2004 Steve Matson

Navarretia eriocephala Hoary navarretia, Hoary pincushionplant

• rare native
Annual herb

2016 Steve Matson

Navarretia filicaulis Thin stemmed navarretia, Threadstem pincushionplant

native
Annual herb

2015 Tim Miller

2019 David popp

2023 Ryan O'Dell

Navarretia fossalis Moran's navarretia, Spreading navarretia, Vernalpool pincushionplant

• rare native
Annual herb

2019 Jonathan Mercado

2019 Jacob Smith

Navarretia gowenii Lime ridge navarretia

• rare native
Perennial herb

2018 R.A. Chasey

2008 John Game

Navarretia hamata Hooked navarretia, Hooked pincushionplant

native
Annual herb

2015 Keir Morse

2019 Diane Etchison

Navarretia hamata ssp. hamata Hooked navarretia, Hooked pincushionplant

native
Annual herb

2014 Ron Vanderhoff

2020 Phillip Roullard

2009 Neal Kramer

Navarretia hamata ssp. leptantha Hooked navarretia, Hooked pincushionplant

native
Annual herb

2015 Keir Morse

Navarretia hamata ssp. parviloba Hooked navarretia, Small lobe navarretia

native
Annual herb

2022 R.A. Chasey

2017 R.A. Chasey

2021 Cara Wilcox

Navarretia heterandra Tehama navarretia, Tehama pincushionplant

• rare native
Annual herb

2022 Scott Yarger

2022 Steve Laymon

Navarretia heterodoxa Calistoga navarretia, Calistoga pincushionplant

native
Annual herb

2018 Stacie Wolny

2021 Larry Dizmang

Navarretia intertexta Interwoven navarretia, Needle leaved navarretia, Needleleaf navarretia

native
Annual herb

2019 Steve Matson

Navarretia intertexta ssp. intertexta Interwoven navarretia, Needleleaf navarretia

native
Annual herb

2019 David Greenberger

2019 Bob Sweatt

2022 Bob Sweatt

Navarretia jepsonii Jepson's navarretia, Jepson's pincushionplant

• rare native
Annual herb

2020 John Game

2019 Steve Matson

2016 Steve Matson

Navarretia leptalea Bridges' pincushionplant

native
Annual herb

2019 Bob Sweatt

2019 Cynthia Powell

2019 R.A. Chasey

Gilia leptalea ssp. bicolor Bridges' gilia

native
Annual herb

2019 Cynthia Powell

2013 BOB CASE

2019 R.A. Chasey

Navarretia leptalea ssp. bicolor Bridges' gilia

native
Annual herb

2019 Cynthia Powell

2013 BOB CASE

2019 R.A. Chasey

Gilia leptalea ssp. leptalea Bridges' gilia

native
Annual herb

2021 Alaine Arslan

2021 R.A. Chasey

Navarretia leptalea ssp. leptalea Bridges' gilia

native
Annual herb

2021 Alaine Arslan

2021 R.A. Chasey

Navarretia leucocephala White headed navarretia, Whitehead navarretia

native
Annual herb

2024 Cynthia Powell

2019 Steve Matson

2022 Steve Matson

Navarretia leucocephala ssp. pileantha White headed navarretia, Whitehead navarretia

native
Annual herb

2024 Cynthia Powell

2019 Steve Matson

2022 Steve Matson

Navarretia leucocephala ssp. bakeri Baker's navarretia

• rare native
Annual herb

2019 Hunter Breck

2020 Tim Miller

2019 Hunter Breck

Navarretia leucocephala ssp. leucocephala White headed navarretia, Whitehead navarretia

native
Annual herb

Navarretia leucocephala ssp. leucocephala

2022 Steve Matson

Navarretia leucocephala ssp. minima Least navarretia, Little white navarretia

native
Annual herb

2005 Steve Matson

2002 Steve Matson

Navarretia leucocephala ssp. pauciflora Few flowered navarretia, Fewflower navarretia

• rare native
Annual herb

2008 Steve Matson

2013 Jake Ruygt

Navarretia leucocephala ssp. plieantha Many flowered navarretia, Manyflowered navarretia

• rare native
Annual herb

2019 Steve Matson

Navarretia mellita Honeyscented pincushionplant, Skunk navarretia

native
Annual herb

2019 Steve Matson

Navarretia mitracarpa Paso robles navarretia

native
Annual herb

2022 Mike Russler

2019 David Greenberger

2022 Mike Russler

Navarretia myersii Myers' pincushionplant, Pincushion navarretia

native
Annual herb

2003 Yulan Tong

2011 Charles Patterson

2005 John Game

Navarretia myersii ssp. myersii Myers' pincushionplant

• rare native
Annual herb

2018 Doreen L. Smith

2005 Russell Huddleston

2003 Yulan Tong

Navarretia nigelliformis ssp. nigelliformis Adobe navarretia

• rare native
Annual herb

Navarretia nigelliformis ssp. nigelliformis

2017 Douglas Gordon-Blackwood

2022 David popp

Navarretia nigelliformis ssp. radians Adobe navarretia, Shining navarretia

• rare native
Annual herb

2022 Steve Matson

Navarretia ojaiensis Ojai navarretia

• rare native
Annual herb

2008 Michael Charters

2013 Anuja Parikh and Nathan Gale

Navarretia paradoxiclara Navarretia

• rare native
Annual herb

2019 David Greenberger

2016 Leigh Johnson

Navarretia paradoxinota Navarretia

• rare native
Annual herb

2018 John Game

2017 John Game

2020 Tim Miller

Navarretia peninsularis Baja navarretia, Baja pincushionplant

• rare native
Annual herb

2023 Martin Schenker

2020 Jacob Smith

2023 Martin Schenker

Navarretia prolifera Burr navarretia, Burr pincushionplant

native
Annual herb

2012 Steven Perry

2019 David Greenberger

2005 George W. Hartwell

Navarretia prolifera ssp. lutea Burr pincushionplant, Yellow bur navarretia

• rare native
Annual herb

2017 Robert Barnard

2011 Steven Perry

2002 Steve Tyron

Navarretia prolifera ssp. prolifera Burr navarretia, Burr pincushionplant

native
Annual herb

2019 David Greenberger

2012 Steven Perry

2019 David Greenberger

Navarretia intertexta ssp. propinqua

native
Annual herb

2019 Bob Sweatt

2016 Roy West

2023 R.A. Chasey

Navarretia propinqua

native
Annual herb

2019 Bob Sweatt

2016 Roy West

2023 R.A. Chasey

Navarretia prostrata Prostrate navarretia, Prostrate pincushionplant

• rare native
Annual herb

2017 Ron Vanderhoff

2017 Tania Asef

2023 Ron Vanderhoff

Navarretia pubescens Downy pincushionplant, Purple navarretia

native
Annual herb

2009 Bob Case

2019 David Greenberger

2022 Helen Hancock

Navarretia rosulata Marin county navarretia, San anselmo navarretia

• rare native
Annual herb

2019 David Greenberger

2022 R.A. Chasey

2016 Richard Chasey

Navarretia setiloba Paiute mountain pincushionplant, Piute mtns. navarretia

• rare native
Annual herb

2008 John Game

2008 Korey Klutz

Navarretia sinistra Alva day's pincushionplant

native
Annual herb

2017 Steve Matson

2015 Steve Matson

Navarretia squarrosa Skunkbush, Skunkweed

native
Annual herb

2019 Marisa Persaud

2019 Patrick Furtado

2022 Suzanne L. Weakley

Navarretia subuligera Awl leaf pincushionplant, Awl leaved navarretia

• rare native
Annual herb

2022 David popp

2013 Jake Ruygt

1998 Dean Wm. Taylor

Navarretia tagetina Marigold navarretia, Marigold pincushionplant, Navarretia

native
Annual herb

2019 Steve Matson

Navarretia viscidula Sticky navarretia, Sticky pincushionplant

native
Annual herb

2021 R.A. Chasey

2015 John Doyen

Prosopis glandulosa var. torreyana Honey mesquite

native
Shrub

2019 Ron Vanderhoff

2015 Diane Etchison

2021 Ron Vanderhoff

Prosopis velutina Velvet mesquite

non-native
Shrub

Nelumbo lutea American lotus

non-native
Perennial herb

NELUMBONACEAE

2022 Donald Burk

Nelumbo nucifera Sacred lotus

non-native
Perennial herb

NELUMBONACEAE

Nemacaulis denudata var. denudata Coast woolly heads, Cottonheads

• rare native
Annual herb

2014 David Varner

2017 Keir Morse

2019 Keir Morse

Nemacaulis denudata var. gracilis Cottonheads, Slender woolly heads

• rare native
Annual herb

2010 Duncan S. Bell

2013 James M. Andre

2010 Duncan S. Bell

Nemacladus calcaratus Chimney creek nemacladus

• rare native
Annual herb

2018 Cheryl Birker

Nemacladus californicus Mojave dwarf

native
Annual herb

2023 Eric Koberle

2019 Manzanita Dictionary

Nemacladus capillaris Common nemacladus, Common threadplant

native
Annual herb

2023 Mike Russler

2023 Ryan O'Dell

2019 Steven Perry

Nemacladus glanduliferus Glandular nemacladus, Glandular threadplant, Thread plant

native
Annual herb

2019 Matt Berger

2020 David Greenberger

Nemacladus gracilis Slender nemacladus, Slender threadplant

• rare native
Annual herb

2010 Steve Matson

Nemacladus interior Sierra nemacladus, Sierra threadplant

native
Annual herb

2021 Mike Russler

Nemacladus longiflorus var. breviflorus Long flowered nemacladus, Long flowered thread plant, Longflower threadplant

native
Annual herb

2019 Matt Berger

2008 Aaron Schusteff

Nemacladus longiflorus var. longiflorus Long flowered nemacladus, Longflower threadplant

native
Annual herb

2017 Keir Morse

2013 Keir Morse

Nemacladus montanus Mountain nemacladus, Mountain threadplant

native
Annual herb

2022 Paul Aigner

2021 R.A. Chasey

Nemacladus orientalis Eastern glandular nemacladus

native
Annual herb

2011 Steve Matson

2023 Aaron Schusteff

2011 Steve Matson

Nemacladus pinnatifidus Comb leaved nemacladus, Combleaf threadplant

native
Annual herb

2019 Keir Morse

Nemacladus ramosissimus Nuttall's nemacladus, Smallflower threadplant

native
Annual herb

2017 Fred Melgert / Carla Hoegen

2019 Ron Vanderhoff

2017 James Bailey

Nemacladus rigidus Rigid nemacladus, Stoutstem threadplant

native
Annual herb

2010 Steve Matson

Nemacladus rubescens Desert nemacladus, Desert threadplant, Rigid stemmed thread plant

native
Annual herb

2012 Keir Morse

2023 Morgan Stickrod

2020 David Greenberger

Nemacladus secundiflorus Onesided threadplant, Secund nemacladus

native
Annual herb

2022 Damon Tighe

Nemacladus secundiflorus var. robbinsii Robbins' nemacladus

• rare native
Annual herb

2022 Damon Tighe

Nemacladus secundiflorus var. secundiflorus Large-flowered nemacladus

• rare native
Annual herb

Nemacladus secundiflorus var. secundiflorus

2008 Aaron Schusteff

Nemacladus sigmoideus Sigmoid threadplant, Small flowered nemacladus

native
Annual herb

2019 Steve Matson

Nemacladus tenuis Desert nemacladus

native
Annual herb

2013 Keir Morse

Nemacladus tenuis var. aliformis

native
Annual herb

2013 Keir Morse

Nemacladus tenuis var. tenuis Desert nemacladus

native
Annual herb

2011 Dylan Neubauer

2010 Aaron Schusteff

Nemacladus twisselmannii Twisselmann's nemacladus, Twisselmann's threadplant

• rare native
Annual herb

2012 Keir Morse

Nemophila breviflora Basin nemophila, Great basin nemophila

• rare native
Annual herb

2011 RT Hawke

Nemophila heterophylla Canyon nemophila, Small baby blue eyes, Variable leaved nemophila

native
Annual herb

2006 Steve Matson

2005 Steve Matson

Nemophila maculata Five spot, Fivespot

native
Annual herb

2020 Matt Berger

2021 Mike Russler

2022 Mike Russler

Nemophila menziesii Baby blue eyes

native
Annual herb

2019 Matt Berger

2019 Diane Etchison

2019 Ron Vanderhoff

Nemophila menziesii var. atomara Baby blue eyes

native
Annual herb

2019 Matt Berger

2019 Diane Etchison

2019 Ron Vanderhoff

Nemophila menziesii var. atomaria Baby blue eyes

native
Annual herb

2021 Steve Matson

Nemophila menziesii var. integrifolia Baby blue eyes

native
Annual herb

2020 David Greenberger

2021 Emily Sluiman

2022 R.A. Chasey

Nemophila menziesii var. menziesii Baby blue eyes

native
Annual herb

2021 Steve Matson

2005 Steve Matson

Nemophila parviflora Small flowered nemophila, Smallflower nemophila

native
Annual herb

2022 Dana York

2022 John Rawlings

2022 Eric Koberle

Nemophila parviflora var. austiniae Rebecca austin's nemophila, Small flowered nemophila, Smallflower nemophila

native
Annual herb

2021 Lisa Berry

2018 David popp

Nemophila parviflora var. parviflora Small flowered nemophila, Smallflower nemophila, Woodland nemophila

native
Annual herb

2019 John Rawlings

2021 Zoya Akulova-Barlow

2023 Dana York

Nemophila parviflora var. quercifolia Oak leaved nemophila, Smallflower nemophila

• rare native
Annual herb

2015 Susan McDougall

2021 Mike Russler

2022 Eric Koberle

Nemophila pedunculata Littlefoot nemophila, Meadow nemophila

native
Annual herb

2003 Steve Matson

2020 Bob Sweatt

2024 Alaine Arslan

Nemophila pulchella Eastwood's baby blue eyes, Eastwood's nemophila

native
Annual herb

2019 Marisa Persaud

2019 Jacob Smith

2021 Joanna Clines

Nemophila pulchella var. fremontii Fremont's baby blue eyes, Fremont's nemophila

native
Annual herb

2009 Sidney Watson

Nemophila pulchella var. pulchella Eastwood's baby blue eyes

native
Annual herb

2019 Jacob Smith

2021 Joanna Clines

2019 Mary Merriman

Nemophila spatulata Sierra baby blue eyes, Sierra nemophila

native
Annual herb

2005 Steve Matson

2020 Bob Sweatt

2022 Mike Russler

Neoholmgrenia andina Plateau evening primrose

native
Annual herb

2020 Donald Burk

2017 Thayne Tuason

1988 Dean Wm. Taylor

Kochia californica

native
Perennial herb

2013 Neal Kramer

Neostapfia colusana Colusa grass, Colusagrass

• rare native
Annual grass

2009 Doug Wirtz

2012 Aaron E. Sims

2023 Charles Russell

Nepeta cataria Catnip

non-native
Perennial herb

2013 Al Keuter

Nephrolepis cordifolia Narrow swordfern

non-native
Fern

Nephrolepis exaltata Boston swordfern

non-native
Fern

Nerium oleander Oleander

• invasive non-native
Tree

2019 Celeste Dodge

2022 Ron Vanderhoff

2018 Ron Vanderhoff

Haplopappus stenophyllus Narrowleaf mock goldenweed

native
Perennial herb

2009 Matt Below

1998 Dan Post

Nestotus stenophyllus Narrowleaf mock goldenweed

native
Perennial herb

2009 Matt Below

1998 Dan Post

Stenotus stenophyllus Narrowleaf mock goldenweed

native
Perennial herb

2009 Matt Below

1998 Dan Post

Neviusia cliftonii Shasta snow wreath

• rare native
Shrub

2008 Steve Matson

Nicandra physalodes Apple of peru, Nicandra

non-native
Annual herb

2005 Louis-M. Landry

Nicolletia occidentalis Hole in the sand plant, Mojave hole in the sand plant, Western nicolletia

native
Perennial herb

2017 Steve Matson

2020 Joey Santore

2017 Steve Matson

Nicotiana acuminata Manyflower tobacco

non-native
Annual herb

2019 Jennifer Mo

2023 Mike Russler

2022 Irene Rosen

Nicotiana acuminata var. multiflora Many flowered tobacco, Manyflower tobacco, Tobacco

non-native
Annual herb

2023 Mike Russler

2019 Michelle Karle

2023 R.A. Chasey

Nicotiana alata Flowering tobacco, Jasmine tobacco

non-native
Perennial herb

2007 Louis-M. Landry

2018 Sara Mandel

2018 Zoya Akulova

Nicotiana attenuata Coyote tobacco

native
Annual herb

2009 Steve Matson

2020 Bob Sweatt

Nicotiana clevelandii Cleveland's tobacco

native
Annual herb

2014 Ron Vanderhoff

2023 Ron Vanderhoff

Nicotiana glauca Tree tobacco

• invasive non-native
Tree, Shrub

2019 Jean B Henney

2017 Steve Matson

Nicotiana obtusifolia Desert tobacco

native
Perennial herb

2019 Susan McDougall

2019 Matt Berger

2019 R.A. Chasey

Nicotiana obtusifolia var. obtusifolia Desert tobacco

native
Perennial herb

2019 Susan McDougall

2019 Matt Berger

2019 R.A. Chasey

Nicotiana quadrivalvis Indian tobacco

native
Annual herb

2019 Michael Mitchell

2016 Lesley Hunt

Nicotiana rustica Aztec tobacco

non-native
Annual herb

Nicotiana tabacum Cultivated tobacco

non-native
Annual herb

2010 Daniel Gluesenkamp

2005 Louis-M. Landry

2021 Friends of Five Creeks volunteers

Nigella damascena Devil in the bush, Love-in-a-mist

non-native
Annual herb

2019 Rachelle Gray

2014 Ansel Oommen

2019 Rachelle Gray

Nitrophila mohavensis Amargosa niterwort, Amargosa nitrophila

• rare native
Perennial herb

2011 Duncan S. Bell

2016 Karen E. Tanner

2019 Cheryl Birker

Nitrophila occidentalis Boraxweed, Western nitrophila

native
Perennial herb

2016 Steve Matson

2020 Matt Berger

2016 Steve Matson

Noccaea fendleri Pennycress

native
Perennial herb

2011 Steve Matson

2017 Steve Matson

Noccaea fendleri ssp. siskiyouense Pennycress

native
Perennial herb

2011 Steve Matson

2017 Steve Matson

Noccaea fendleri ssp. siskiyouensis Pennycress

native
Perennial herb

2011 Steve Matson

2017 Steve Matson

Noccaea fendleri ssp. californica Kneeland prairie pennycress

• rare native
Perennial herb

2017 Steve Matson

Noccaea fendleri ssp. glauca Pennycress

native
Perennial herb

2011 Steve Matson

Thlaspi fendleri Pennycress

native
Perennial herb

2011 Steve Matson

Thlaspi montanum Pennycress

native
Perennial herb

2011 Steve Matson

Thlaspi montanum var. fendleri Pennycress

native
Perennial herb

2011 Steve Matson

Nolina bigelovii Bigelow's nolina

native
Perennial herb

2005 James M. Andre

2018 Susan McDougall

Nolina cismontana Peninsular beargrass

• rare native
Shrub

2018 Ron Vanderhoff

2020 Diane Etchison

2019 Ron Vanderhoff

Nolina interrata Dehesa beargrass, Dehesa nolina

• rare native
Perennial herb

2022 Alexander S. Kunz

2005 Deborah Leonard

2015 Brian Powell

Nolina parryi Parry's beargrass, Parry's nolina

native
Perennial herb

2018 Mary Merriman

2020 Bob Steele

2020 Matt Berger

Nothocalais alpestris Alpine lake prairie dandelion, Alpine prairie dandelion

native
Perennial herb

2019 Talila Golan

2018 Dana York

Microseris troximoides False agoseris, Weevil prairie dandelion

native
Perennial herb

2018 Susan McDougall

2006 Steve Matson

2015 Richard Spellenberg

Nothocalais troximoides False agoseris, Weevil prairie dandelion

native
Perennial herb

2018 Susan McDougall

2006 Steve Matson

2015 Richard Spellenberg

Nothochelone nemorosa False turtlehead, Woodland beardtongue

native
Perennial herb

2019 Christopher Christie

2011 Dana York

2020 R.A. Chasey

Notholaena californica California cloak fern

native
Fern

2012 Keir Morse

Notholaena californica ssp. californica California cloak fern

native
Fern

2020 Ron Vanderhoff

2013 Ron Vanderhoff

Notholaena standleyi Star cloak fern

non-native
Fern

Lithocarpus densiflorus Tanoak

native
Tree, Shrub

2022 David Strauch

2019 Bryant Baker

2020 Asa B Spade

Notholithocarpus densiflorus Tanoak

native
Tree, Shrub

2022 David Strauch

2019 Bryant Baker

2020 Asa B Spade

Lithocarpus densiflorus var. densiflorus Tanoak

native
Tree, Shrub

Lithocarpus densiflorus var. densiflorus

2020 R.A. Chasey

2022 David popp

2020 Susan McDougall

Notholithocarpus densiflorus var. densiflorus Tanoak

native
Tree, Shrub

Notholithocarpus densiflorus var. densiflorus

2020 R.A. Chasey

2022 David popp

2020 Susan McDougall

Lithocarpus densiflorus var. echinoides Tanoak shrub

native
Tree, Shrub

2019 Joey Santore

2019 Susan McDougall

2013 Neal Kramer

Notholithocarpus densiflorus var. echinoides Tanoak shrub

native
Tree, Shrub

Notholithocarpus densiflorus var. echinoides

2019 Joey Santore

2019 Susan McDougall

2013 Neal Kramer

Nothoscordum gracile Slender false garlic

• invasive non-native
Perennial herb

2017 Ron Vanderhoff

2021 Friends of Five Creeks volunteers

Nuphar lutea ssp. polysepala Rocky mountain pond-lily

native
Perennial herb (aquatic)

2023 Cynthia Powell

Nuphar polysepala Rocky mountain pond-lily

native
Perennial herb (aquatic)

2023 Cynthia Powell

Linaria canadensis Canada toadflax

native
Annual, Biennial herb

2019 Mary Conway

2016 Keir Morse

Nuttallanthus canadensis Canada toadflax

native
Annual, Biennial herb

2019 Mary Conway

2016 Keir Morse

Linaria canadensis var. texana Blue toadflax

native
Annual, Perennial herb

2017 Steve Matson

Nuttallanthus texanus Blue toadflax

native
Annual, Perennial herb

2017 Steve Matson

Nyctaginia capitata Devil's bouquet

non-native
Perennial herb

Nymphaea alba European white waterlily

non-native
Perennial herb (aquatic)

2004 Doreen L. Smith

Nymphaea mexicana Mexican water lily, Yellow waterlily

• invasive non-native
Perennial herb

2013 Debra L. Cook

2003 Joseph Dougherty/ecology.org

Nymphaea odorata American white waterlily, Water lily

• invasive non-native
Perennial herb

2006 Joseph Dougherty/ecology.org

2006 Louis-M. Landry

Nymphaea odorata ssp. odorata American white waterlily, Water lily

• invasive non-native
Perennial herb

2006 Joseph Dougherty/ecology.org

2006 Louis-M. Landry

Nymphaea odorata ssp. tuberosa American white waterlily, Water lily

• invasive non-native
Perennial herb

2006 Joseph Dougherty/ecology.org

2006 Louis-M. Landry

Nymphoides peltata Water fringe, Yellow floatingheart

non-native
Perennial herb

MENYANTHACEAE

2011 Louis-M. Landry

2001 CDFA

Nyssa sylvatica Blackgum

non-native
Shrub, Tree

Ocimum basilicum Sweet basil

non-native
Perennial herb

2021 Ron Vanderhoff

Odontostomum hartwegii Hartweg's doll's lily, Hartweg's odontostomum, Odontostomum

native
Perennial herb

TECOPHILAEACEAE

2020 Julie A. Kierstead

2022 Mike Russler

2022 John Game

Oemleria cerasiformis Indian plum, Oso berry

native
Shrub

2019 Margo Bors

2019 Stacie Wolny

2023 David Wolfson

Osmaronia cerasiformis Indian plum, Oso berry

native
Shrub

2019 Margo Bors

2019 Stacie Wolny

2023 David Wolfson

Oenanthe pimpinelloides Corkyfruit waterdropwort, European oenanthe

non-native
Perennial herb

2009 Phil Pullen

Oenanthe sarmentosa Pacific oenanthe, Water parsley

native
Perennial herb

2021 Don Hollander

2021 Ron Vanderhoff

2021 Rosaleen

Oenothera biennis Common evening primrose, Small flowered evening primrose

non-native
Perennial herb

2016 Cynthia Powell

2006 Louis-M. Landry

2016 Cynthia Powell

Oenothera californica California evening primrose, California primrose

native
Perennial herb

2019 Julie Ann Watson

2020 Mitchell Coleman

2015 Ron Vanderhoff

Oenothera californica ssp. arizonica California evening primrose, California primrose

native
Perennial herb

2019 Julie Ann Watson

2020 Mitchell Coleman

2015 Ron Vanderhoff

Oenothera californica ssp. avita California evening primrose

native
Perennial herb

2016 Diane Etchison

2014 John Doyen

2015 Barry Rice

Oenothera californica ssp. californica California evening primrose

native
Perennial herb

2018 Aaron Echols

2023 Richard Spjut

2019 Susan McDougall

Oenothera californica ssp. eurekensis Eureka dunes evening primrose

• rare native
Perennial herb (rhizomatous)

2020 Matt Berger

2001 Larry Blakely

2023 richard mcneill

Oenothera cavernae Cavedwelling evening primrose

• rare native
Perennial herb

2006 Arik Skromme

2008 Michael Charters

2008 James M. Andre

Oenothera caespitosa Fragrant evening-primrose

native
Perennial herb

2019 Madena Asbell

2016 Keir Morse

Oenothera cespitosa Fragrant evening-primrose

native
Perennial herb

2019 Madena Asbell

2016 Keir Morse

Oenothera cespitosa ssp. crinita Cespitose evening-primrose

• rare native
Perennial herb (rhizomatous)

2022 Ian Archer Winick

2017 Jim Morefield

2013 Martha Ashton-Sikora

Oenothera caespitosa ssp. marginata Fragrant evening-primrose

native
Perennial herb

Geoff Burleigh

Oenothera cespitosa ssp. marginata Fragrant evening-primrose

native
Perennial herb

Geoff Burleigh

Gaura parviflora Lizard-tail, velvet weed

non-native
Perennial herb

2019 Jane Kelly

2007 Trent M. Draper

Oenothera curtiflora Lizard-tail, velvet weed

non-native
Perennial herb

2019 Jane Kelly

2007 Trent M. Draper

Oenothera deltoides Birdcage evening primrose, Desert lantern, Dune primrose

native
Annual herb

2019 Matt Berger

2022 Ryan O'Dell

2023 Zoya Akulova-Barlow

Oenothera deltoides ssp. cognata Birdcage evening primrose, Desert lantern

native
Annual herb

2019 Dee Shea Himes

2019 Alex Heyman

2022 Ryan O'Dell

Oenothera deltoides ssp. deltoides Birdcage evening primrose, Desert lantern

native
Annual herb

2019 Matt Berger

2016 James Gonsman

2019 Matt Berger

Oenothera deltoides ssp. howellii Antioch dunes evening primrose

• rare native
Perennial herb

2022 Marcus Tamura

2023 Susan Euing

2011 Zoya Akulova

Oenothera deltoides ssp. piperi Piper's desert lantern, Piper's evening primrose

native
Annual herb

2022 Shane Hanofee

2022 Ryan O'Dell

2012 Gary A. Monroe

Oenothera elata Evening primrose, Hooker's evening primrose

native
Perennial herb

2020 Ron Vanderhoff

2020 Diane Etchison

2020 Bob Sweatt

Oenothera elata ssp. hirsutissima Evening primrose, Hairy evening primrose, Hooker's evening primrose

native
Perennial herb

2015 Bill Haley

2021 David Wolfson

2012 Steve Matson

Oenothera elata ssp. hookeri Common evening primrose, Evening primrose, Hooker's evening primrose

native
Perennial herb

2020 Suzanne L. Weakley

2018 Suzanne L. Weakley

2018 Toni Corelli

Oenothera flava Yellow evening primrose

native
Perennial herb

2005 Steve Matson

2009 Trent M. Draper

Oenothera flava ssp. flava Yellow evening primrose

native
Perennial herb

2005 Steve Matson

2009 Trent M. Draper

Oenothera glazioviana Red sepaled evening primrose, Redsepal evening primrose

non-native
Perennial herb

2007 Dr. Amadej Trnkoczy

Oenothera laciniata Cutleaf evening primrose, Southern evening primrose

non-native
Annual, Perennial herb

2018 Ron Vanderhoff

2018 Angelique Herman

2022 Roger Gray

Oenothera longissima Long evening primrose, Longstem evening primrose

• rare native
Perennial herb

2011 Ron Wolf

Oenothera mexicana Mexican evening primrose

non-native
Perennial herb

1995 Saint Mary's College of California

Oenothera nuttallii Nuttall's evening primrose

non-native
Perennial herb

Oenothera pallida Pale evening primrose

non-native
Perennial herb

Oenothera pallida ssp. trichocalyx Pale evening primrose

non-native
Perennial herb

Oenothera primiveris Yellow desert evening primrose

native
Annual herb

2016 James Gonsman

2019 Richard Spjut

Geoff Burleigh

Oenothera primiveris ssp. bufonis Yellow desert evening primrose

native
Annual herb

2016 James Gonsman

2019 Richard Spjut

Geoff Burleigh

Oenothera primiveris ssp. primiveris Yellow desert evening primrose

native
Annual herb

2016 James Gonsman

2018 Wynn Anderson

Oenothera pubescens Pubescent evening primrose, South american evening primrose

native
Perennial herb

2016 Wynn Anderson

Oenothera rosea Pink evening primrose, Rose evening primrose

non-native
Perennial herb

2018 Ron Vanderhoff

2016 Ron Vanderhoff

Oenothera sinuosa Wavy-leaved gaura

non-native
Perennial herb

2009 Vince Scheidt

2001 CDFA

Oenothera speciosa Mexican evening primrose, Pinkladies

non-native
Perennial herb

2018 Rachelle Gray

2022 Yang Chen

2012 Toni Corelli

Oenothera stricta Chilean evening primrose

non-native
Perennial herb

Gerald and Buff Corsi 2013 California Academy of Sciences

Gaura coccinea Wild honeysuckle, linda tarde

native
Perennial herb

2006 Steve Matson

Oenothera suffrutescens Wild honeysuckle, linda tarde

native
Perennial herb

2006 Steve Matson

Oenothera tetraptera Fourwing evening primrose

non-native
Perennial herb

Oenothera villosa var. villosa Hairy evening primrose

native
Perennial herb

2021 Stacie Sherman

2012 Aaron Arthur

2021 Stacie Sherman

Oenothera villosa ssp. strigosa Hairy evening primrose

native
Perennial herb

2012 Aaron Arthur

2014 Garth Wadsworth

2012 Aaron Arthur

Oenothera wolfii Wolf's evening primrose

• rare native
Perennial herb

2021 Scott Yarger

2001 Lindsay Herrera

1995 Saint Mary's College of California

Oenothera xenogaura Drummond's gaura

non-native
Perennial herb

2016 Ron Vanderhoff

2018 Ron Vanderhoff

Oenothera xylocarpa Wood fruit evening primrose, Woodyfruit evening primrose

native
Perennial herb

2008 Steve Matson

2020 Matt Berger

2020 Bob Sweatt

Olea europaea Olive

• invasive non-native
Tree, Shrub

2022 Donald Burk

2021 Thomas Reyes

2022 Ron Vanderhoff

Olea europaea var. europaea Olive

• invasive non-native
Tree, Shrub

2022 Donald Burk

2021 Thomas Reyes

2022 Ron Vanderhoff

Olea europaea var. oleaster Olive

• invasive non-native
Tree, Shrub

2022 Donald Burk

2021 Thomas Reyes

2022 Ron Vanderhoff

Olea europaea var. sylvestris Olive

• invasive non-native
Tree, Shrub

2022 Donald Burk

2021 Thomas Reyes

2022 Ron Vanderhoff

Oligomeris linifolia Leaved cambess, Lineleaf whitepuff

native
Annual herb

2020 Steve Matson

2017 Diane Etchison

2016 Steve Matson

Olneya tesota Desert ironwood

native
Tree

2023 Keir Morse

2013 Neal Kramer

Olsynium douglasii Douglas' grasswidow

native
Perennial herb

2019 Steve Laymon

2023 Mary Ann Machi

2022 Steve Conger

Olsynium douglasii var. inflatum Douglas' grasswidow

native
Perennial herb

2019 Steve Laymon

2023 Mary Ann Machi

2022 Steve Conger

Sisyrinchium douglasii Douglas' grasswidow

native
Perennial herb

2019 Steve Laymon

2023 Mary Ann Machi

2022 Steve Conger

Oncosiphon piluliferum Stinknet

non-native
Annual herb

2020 Lana Nguyen

2019 Ron Vanderhoff

2020 Hailey Laskey

Onobrychis viciifolia Sainfoin, Sanfoin

non-native
Perennial herb

2009 Mary Winter

2006 Luigi Rignanese

Ononis alopecuroides Foxtail restharrow

• invasive non-native
Annual herb

2018 Joe DiTomaso

Onopordum acanthium Scotch cottonthistle

• invasive non-native
Perennial herb

2021 Diana Wing

2019 Catherine Talbot

2018 Joe Woods

Onopordum acanthium ssp. acanthium Scottish thistle

• invasive non-native
Perennial herb

2021 Diana Wing

2019 Greta Varien

2014 Ed King

Onopordum illyricum Illyrian cottonthistle, Illyrian thistle

• invasive non-native
Annual, Biennial herb

2021 Nancy Barrera

Onopordum tauricum Bull cottonthistle, Taurian thistle

• invasive non-native
Perennial herb

2001 CDFA

Ophioglossum californicum California adder's tongue, California adderstongue

• rare native
Fern (rhizomatous)

2023 R.A. Chasey

2023 Ron Vanderhoff

Ophioglossum pusillum Northern adder's tongue, Northern adderstongue

• rare native
Fern (rhizomatous)

2019 Matt Berger

2009 Dr. Amadej Trnkoczy

2021 Scot Loring

Ophioglossum vulgatum Northern adder's tongue, Northern adderstongue

• rare native
Fern (rhizomatous)

2019 Matt Berger

2009 Dr. Amadej Trnkoczy

2021 Scot Loring

Opuntia basilaris Beavertail cactus, Beavertail pricklypear

native
Shrub (stem succulent)

2020 Lynn Sweet

2016 Anna Wolfe

2019 Marcia M

Opuntia basilaris var. treleasei_intermediate Beavertail cactus, Beavertail pricklypear

native
Shrub (stem succulent)

Opuntia basilaris var. treleasei_intermediate

2020 Lynn Sweet

2016 Anna Wolfe

2019 Marcia M

Opuntia basilaris var. treleasii Beavertail cactus, Beavertail pricklypear

native
Shrub (stem succulent)

2020 Lynn Sweet

2016 Anna Wolfe

2019 Marcia M

Opuntia basilaris var. basilaris Beavertail cactus, Beavertail pricklypear

native
Shrub (stem succulent)

2019 Diane Etchison

2023 Olesya Konovalova

Opuntia basilaris var. brachyclada Beavertail pricklypear, Short joint beavertail

• rare native
Shrub (stem succulent)

2014 Matt Berger

2019 Matt Berger

2021 Sharon Estrada

Opuntia basilaris var. treleasei Bakersfield cactus, Trelease's beavertail pricklypear

• rare native
Shrub (stem succulent)

2020 Mitchell Coleman

2020 Matt Berger

Opuntia chlorotica Dollarjoint pricklypear, Pancake cactus, Pancake prickly pear

native
Shrub (stem succulent)

2017 Fred Melgert / Carla Hoegen

2020 Matt Berger

2017 Fred Melgert / Carla Hoegen

Opuntia engelmannii Cactus apple

native
Shrub

2021 Ron Vanderhoff

2010 Peter Pak

2021 Ron Vanderhoff

Opuntia engelmannii ssp. liguiformis Cactus apple

native
Shrub

2021 Ron Vanderhoff

2010 Peter Pak

2021 Ron Vanderhoff

Opuntia engelmannii var. liguliformis Cactus apple

native
Shrub

2021 Ron Vanderhoff

2010 Peter Pak

2021 Ron Vanderhoff

Opuntia engelmannii var. lingulformia Cactus apple

native
Shrub

2021 Ron Vanderhoff

2010 Peter Pak

2021 Ron Vanderhoff

Opuntia engelmannii var. engelmannii Cactus apple, Engelmann prickly pear

native
Shrub

2010 James M. Andre

2010 Zoya Akulova

2010 James M. Andre

Opuntia phaeacantha var. discata Cactus apple, Engelmann prickly pear

native
Shrub

2010 James M. Andre

2010 Zoya Akulova

2010 James M. Andre

Opuntia ficus-indica Mission cactus, Tuna cactus

non-native
Shrub (stem succulent)

2020 Ron Vanderhoff

Opuntia fragilis Brittle prickly pear, Brittle pricklypear, Pigmy tuna

• rare native
Shrub (stem succulent)

2014 Robert L. Carr

Opuntia leucotricha Nopal duraznillo

non-native
Shrub (stem succulent)

2018 Adonis Tate

Opuntia littoralis Coast prickly pear, Coastal pricklypear, Western prickly pear

native
Shrub (stem succulent)

2019 Diane Etchison

2022 Ron Vanderhoff

Opuntia macrorhiza Twistspine pricklypear

non-native
Shrub (stem succulent)

Opuntia microdasys Angel's wings

non-native
Shrub (stem succulent)

2019 Ron Vanderhoff

2017 Wynn Anderson

Opuntia oricola Chaparral pricklypear, Prickly pear

native
Shrub (stem succulent)

2020 Ron Vanderhoff

2018 Ron Vanderhoff

2007 Neil Uelman

Opuntia phaeacantha Brown spined prickly pear, Mojave prickly pear, Tulip pricklypear

native
Shrub (stem succulent)

2021 R.A. Chasey

2018 Diane Etchison

2021 R.A. Chasey

Opuntia phaeacantha var. laevis Brown spined prickly pear, Mojave prickly pear, Tulip pricklypear

native
Shrub (stem succulent)

2021 R.A. Chasey

2018 Diane Etchison

2021 R.A. Chasey

Opuntia phaeacantha var. major Brown spined prickly pear, Mojave prickly pear, Tulip pricklypear

native
Shrub (stem succulent)

2021 R.A. Chasey

2018 Diane Etchison

2021 R.A. Chasey

Opuntia phaeacantha var. phaeacantha Brown spined prickly pear, Mojave prickly pear, Tulip pricklypear

native
Shrub (stem succulent)

2021 R.A. Chasey

2018 Diane Etchison

2021 R.A. Chasey

Opuntia polyacantha Plains pricklypear

native
Shrub (stem succulent)

2012 Steve Matson

Opuntia erinacea Grizzlybear pricklypear

native
Shrub (stem succulent)

2012 Steve Matson

Opuntia erinacea ssp. rubrispina Grizzlybear pricklypear

native
Shrub (stem succulent)

2012 Steve Matson

Opuntia erinacea var. erinacea Grizzlybear pricklypear

native
Shrub (stem succulent)

2012 Steve Matson

Opuntia erinacea var. ursina Grizzlybear pricklypear

native
Shrub (stem succulent)

2012 Steve Matson

Opuntia erinacea var. xanthostemma Grizzlybear pricklypear

native
Shrub (stem succulent)

2012 Steve Matson

Opuntia heacockiae Grizzlybear pricklypear

native
Shrub (stem succulent)

2012 Steve Matson

Opuntia polyacantha var. erinacea Grizzlybear pricklypear

native
Shrub (stem succulent)

2012 Steve Matson

Opuntia polyacantha var. polyacantha Grizzlybear pricklypear

native
Shrub (stem succulent)

2012 Steve Matson

Opuntia polyacantha var. hystricina Grizzlybear pricklypear

native
Shrub (stem succulent)

Gerald and Buff Corsi 2014 California Academy of Sciences

Opuntia robusta Nopal tapon

non-native
Shrub (stem succulent)

2023 Ron Vanderhoff

2009 Zoya Akulova

Opuntia tomentosa Woollyjoint pricklypear

non-native
Shrub (stem succulent)

2020 Ron Vanderhoff

Opuntia littoralis var. vaseyi Vasey's prickly pear

native
Shrub

2020 Ron Vanderhoff

2020 Jerzy Gronostalski

2018 Ron Vanderhoff

Opuntia vaseyi Vasey's prickly pear

native
Shrub

2020 Ron Vanderhoff

2020 Jerzy Gronostalski

2018 Ron Vanderhoff

Opuntia Xoccidentalis Western prickly pear

native
Shrub (stem succulent)

2020 Ron Vanderhoff

2017 Ron Vanderhoff

Orcuttia californica California orcutt grass

• rare native
Annual grass

2005 Jasmine J. Watts

2013 Anna Bennett

2005 Russell Huddleston

Orcuttia inaequalis San joaquin valley orcutt grass

• rare native
Annual grass

2011 Steve Matson

2022 Anton Bokisch

Orcuttia pilosa Hairy orcutt grass

• rare native
Annual grass

2003 George W. Hartwell

2011 Steve Matson

2003 George W. Hartwell

Orcuttia tenuis Slender orcutt grass

• rare native
Annual grass

2020 Steve Laymon

2008 F. Gauna

2005 George W. Hartwell

Orcuttia viscida Sacramento orcutt grass

• rare native
Annual grass

2007 Carol W. Witham

2004 Carol W. Witham

Cryptantha cinerea var. abortiva Bow-nut oreocarya

native
Perennial herb

2010 Steve Matson

Cryptantha confertiflora Yellow-flowered oreocarya

native
Perennial herb

2020 Matt Berger

2011 Steve Matson

2023 Bob Steele

Cryptantha flavoculata Yellow-eyed oreocarya

native
Perennial herb

2011 Steve Matson

2017 Steve Matson

2011 Steve Matson

Cryptantha hoffmannii White mountains oreocarya

native
Perennial herb

2019 Steve Matson

Oreocarya hoffmannii White mountains oreocarya

native
Perennial herb

2019 Steve Matson

Cryptantha humilis Low oreocarya

native
Perennial herb

2012 Steve Matson

2022 Bob Sweatt

Cryptantha nubigena Sierra oreocarya

native
Biennial, Perennial herb

2005 Steve Matson

2008 Steve Matson

Cryptantha virginensis Virgin River oreocarya

native
Perennial herb

2009 Steve Matson

2006 Steve Matson

Oreonana clementis Clemens' mountain parsley, Pygmy mountainparsley

native
Perennial herb

2017 Steve Matson

2018 Steve Matson

Oreonana purpurascens Purple mountain parsley, Purple mountainparsley

• rare native
Perennial herb

2018 Steve Matson

2015 Mary Merriman

Oreonana vestita Woolly mountain parsley, Woolly mountainparsley

• rare native
Perennial herb

2019 Matt Berger

2006 Michael Charters

2018 Jane Tirrell

Oreostemma alpigenum Tundra aster

native
Perennial herb

2019 Steve Matson

Oreostemma alpigenum var. alpigenum Tundra aster

native
Perennial herb

2019 Steve Matson

Oreostemma alpigenum var. haydenii Tundra aster

native
Perennial herb

2019 Steve Matson

Aster alpigenus var. andersonii Tundra aster

native
Perennial herb

2019 Steve Matson

2006 Steve Matson

Oreostemma alpigenum var. andersonii Tundra aster

native
Perennial herb

2019 Steve Matson

2006 Steve Matson

Oreostemma elatum Plumas alpine aster

• rare native
Perennial herb

2012 David popp

2018 Sierra Pacific Industries

2006 Dean Wm. Taylor, Ph.D.

Oreostemma peirsonii Peirson's aster

native
Perennial herb

1995 Saint Mary's College of California

Origanum majorana Sweet marjoram

non-native
Perennial herb

Origanum vulgare Oregano

non-native
Perennial herb

2021 Donald Burk

2018 Ron Vanderhoff

Origanum vulgare ssp. hirtum Oregano

non-native
Perennial herb

2018 Ron Vanderhoff

2020 Jennifer Mo

Ornithogalum umbellatum Sleepydick

non-native
Perennial herb

2004 Dr. Amadej Trnkoczy

2005 Louis-M. Landry

2006 Luigi Rignanese

Ornithostaphylos oppositifolia Baja birdbush, Baja california birdbush

• rare native
Shrub

2023 Ron Vanderhoff

Orobanche hederae Ivy broomrape

non-native
Perennial herb (parasitic)

2019 Chasey

2003 Dean Wm. Taylor

Orobanche parishii ssp. brachyloba Parish's broomrape, Short lobed broom rape

• rare native
Perennial herb (parasitic)

2015 Paul Preston and Tim Lukaszewski

2015 Paul Preston

Orobanche valida ssp. howellii Howell's broomrape

• rare native
Perennial herb (parasitic)

1997 Dean Wm. Taylor

2013 Jake Ruygt

2011 Jake Ruygt

Orobanche valida ssp. valida Rock creek broomrape

• rare native
Perennial herb (parasitic)

1999 Alison Colwell

2010 California Academy of Sciences

Orochaenactis thysanocarpha California mountainpincushion, Mountain pincushion

native
Annual herb

2007 Steve Matson

2019 Matt Berger

Orthilia secunda One sided wintergreen, Sidebells wintergreen

native
Perennial herb

2019 Bill Haley

2021 R.A. Chasey

Pyrola secunda One sided wintergreen, Sidebells wintergreen

native
Perennial herb

2019 Bill Haley

2021 R.A. Chasey

Orthocarpus bracteosus Bracted owl's clover, Rosy owl's clover

native
Annual herb

2005 Norman Jensen

Orthocarpus cuspidatus Broad scaled owl's clover, Toothed owl's clover

native
Annual herb

2014 Steve Matson

2020 Bob Sweatt

2003 Steve Matson

Orthocarpus cuspidatus ssp. copelandii Copeland's owl's clover

native
Annual herb

2014 Steve Matson

Orthocarpus cuspidatus ssp. cryptanthus Cryptantha owl's clover, Short flowered owl's clover

native
Annual herb

2018 Cynthia Powell

2003 Steve Matson

Orthocarpus cuspidatus ssp. cuspidatus Siskiyou mountain owl's clover, Siskiyou mtns. orthocarpus

• rare native
Annual herb

2002 Dan Post

2005 Chris Wagner

Orthocarpus imbricatus Imbricate owl's clover, Mountain owl's clover

native
Annual herb

2019 Jane Cohn

2006 David McClurg

2005 Jennifer L. Kalt

Orthocarpus luteus Yellow owl's clover

native
Annual herb

2021 Ryan Carle

2021 Martin Purdy

Orthocarpus pachystachyus Shasta orthocarpus, Shasta owl's clover

• rare native
Annual herb

2020 Dean Taylor

1996 Dean Wm. Taylor

Orthotrichum holzingeri Holzinger's orthotrichum moss

• rare native
Moss

2014 calbryos group

2015 calbryos group

Orthotrichum kellmanii Kellman's bristle moss

• rare native
Moss

Orthotrichum shevockii Shevock's bristle moss

native
Moss

2014 calbryos group

Orthotrichum spjutii Spjut's bristle moss

• rare native
Moss

Oryctes nevadensis Nevada oryctes

• rare native
Annual herb

2016 Steve Matson

Oryza sativa Domestic rice

non-native
Annual grass

2023 Donald Burk

Osmadenia tenella False rosinweed, Osmadenia

native
Annual herb

2019 Diane Etchison

2018 Diane Etchison

2021 Ron Vanderhoff

Osmorhiza berteroi Sweet cicely

native
Perennial herb

2006 Steve Matson

Osmorhiza chilensis Sweet cicely

native
Perennial herb

2006 Steve Matson

Osmorhiza brachypoda California sweet cicely, California sweetcicely

native
Perennial herb

2017 Aaron Echols

2020 Ron Vanderhoff

2022 Ron Vanderhoff

Osmorhiza depauperata Bluntseed sweetroot, Little sweet cicely

• rare native
Perennial herb

2011 Jean Pawek

1995 Saint Mary's College of California

Osmorhiza occidentalis Mountain sweet cicely, Western sweet cicely, Western sweetroot

native
Perennial herb

2020 Bob Sweatt

2003 Steve Matson

Osmorhiza purpurea Purple sweet cicely, Purple sweetroot

native
Perennial herb

2014 Susan McDougall

2013 Steve Matson

Osmunda regalis Royal fern

non-native

OSMUNDACEAE

Ottelia alismoides Duck lettuce, Ducklettuce

• invasive non-native
Perennial herb

2001 CDFA

Oxalis articulata ssp. rubra Windowbox woodsorrel

non-native
Perennial herb

2014 Bryan Derr

2018 Brian Charles

2022 Sean Correa

Oxalis albicans Californica wood sorrel

native
Perennial herb

2019 Diane Etchison

2020 Ron Vanderhoff

2020 Diane Etchison

Oxalis californica Californica wood sorrel

native
Perennial herb

2019 Diane Etchison

2020 Ron Vanderhoff

2020 Diane Etchison

Oxalis corniculata Creeping wood sorrel, Creeping woodsorrel, Yellow sorrel

• invasive non-native
Perennial herb

2022 Donald Burk

2022 Ron Vanderhoff

2021 Ron Vanderhoff

Oxalis hirta Tropical woodsorrel

non-native
Perennial herb

2019 Patrick Furtado

2007 Neal Kramer

2019 Anna Schlosser

Oxalis incarnata Crimson woodsorrel

non-native
Perennial herb

2022 Friends of Five Creeks volunteers

2018 MCOSD EDRR

2012 Yves Antoinette

Oxalis latifolia Broadleaf woodsorrel, Mexican oxalis

non-native
Perennial herb

2001 CDFA

2006 Adonis (Don) Tate

2001 CDFA

Oxalis micrantha Dwarf woodsorrel

non-native
Annual herb

2005 Steve Matson

Oxalis oregana Redwood sorrel

native
Perennial herb

2021 Caitlyn Allchin

2021 Steve Matson

Oxalis pes-caprae Bermuda buttercup, Sourgrass

• invasive non-native
Perennial herb

2015 Richard Chasey

2017 Angelique Herman

2019 Gary McDonald

Oxalis albicans ssp. pilosa Hairy wood sorrel

native
Annual herb

2022 R.A. Chasey

2009 Avis Boutell

2022 Cynthia Powell

Oxalis pilosa Hairy wood sorrel

native
Annual herb

2022 R.A. Chasey

2009 Avis Boutell

2022 Cynthia Powell

Oxalis purpurea Purple oxalis, Purple woodsorrel

non-native
Perennial herb

2017 Brian Charles

2024 Ron Vanderhoff

Oxalis purpurea var. ken Purple oxalis, Purple woodsorrel

non-native
Perennial herb

2017 Brian Charles

2024 Ron Vanderhoff

Oxalis radicosa Dwarf woodsorrel

non-native
Annual herb

1995 Saint Mary's College of California

1995 Saint Mary's College of California

2019 Talila Golan

Oxalis suksdorfii Suksdorf woodsorrel

• rare native
Perennial herb

2020 Kolby Lundgren

2019 Jonathan Lee

Oxalis trilliifolia Three leaf woodsorrel, Threeleaf woodsorrel

native
Perennial herb

2020 Gabe Cashman

2010 Sangeet Khalsa

Oxypolis occidentalis Western cow bane, Western cowbane

native
Perennial herb

2020 David popp

2015 David popp

2012 Belinda Lo

Oxyria digyna Alpine mountain sorrel, Alpine mountainsorrel, Mountain sorrel

native
Perennial herb

2020 Bob Sweatt

2019 Dana York

Oxystylis lutea Spiny caper

native
Annual herb

2016 Bonnie Nickel

2015 John Doyen

2016 Zoya Akulova

Oxytheca dendroidea ssp. dendroidea Tall oxytheca

native
Annual herb

2014 Steve Matson

2011 Steve Matson

2014 Steve Matson

Oxytheca perfoliata Roundleaf oxytheca, Roundleaf puncturebract

native
Annual herb

2022 Steve Matson

2020 Matt Berger

Oxytheca watsonii Watson's oxytheca

• rare native
Annual herb

2020 Matt Berger

Oxytropis borealis var. australis Boreal locoweed

native
Perennial herb

2013 Steve Matson

Oxytropis borealis var. viscida Sticky oxytropis, Viscid locoweed

native
Perennial herb

2014 Steve Matson

2016 Steve Matson

Oxytropis campestris Field locoweed

non-native
Perennial herb

Oxytropis deflexa Nodding locoweed

native
Perennial herb

2015 Steve Matson

Oxytropis deflexa var. sericea Blue nodding locoweed, Blue pendent pod oxytrope

• rare native
Perennial herb

2015 Steve Matson

Oxytropis oreophila Mountain oxytrope

native
Perennial herb

2009 Duncan S. Bell

2013 Jean Pawek

Oxytropis oreophila var. juniperina mountain oxytrope, Bicknell locoweed

• rare native
Perennial herb

2010 Lee Dittmann

Oxytropis oreophila var. oreophila Mountain oxytrope, Round leaf loco weed

• rare native
Perennial herb

2006 Trent M. Draper

Oxytropis parryi Parry's loco weed, Parry's oxytrope

• rare native
Perennial herb

2016 Steve Matson

Ozomelis diversifolia Angle leafed miterwort

native
Perennial herb

2021 Steve Matson

Mitella trifida Three parted miterwort

native
Perennial herb

2021 Dana York

Ozomelis trifida Three parted miterwort

native
Perennial herb

2021 Dana York

Packera bernardina San bernardino ragwort

• rare native
Perennial herb

2016 Diane Etchison

2018 Ron Vanderhoff

2023 Ryan O'Dell

Packera bolanderi var. bolanderi Bolander's ragwort, Seacoast ragwort

• rare native
Perennial herb

2009 Gerald Carr

Packera breweri Brewer's ragwort

native
Perennial herb

2017 Patricia Ashe

2019 John Rawlings

2019 Angelique Herman

Senecio breweri Brewer's ragwort

native
Perennial herb

2017 Patricia Ashe

2019 John Rawlings

2019 Angelique Herman

Packera cana Woolly groundsel

native
Perennial herb

2005 Steve Matson

Senecio canus Woolly groundsel

native
Perennial herb

2005 Steve Matson

Packera clevelandii Cleveland's ragwort

native
Perennial herb

2012 Jean Pawek

2018 Paul Aigner

Senecio clevelandii Cleveland's ragwort

native
Perennial herb

2012 Jean Pawek

2018 Paul Aigner

Packera eurycephala Widehead groundsel

native
Perennial herb

2016 David Greenberger

2020 Susan McDougall

Packera eurycephala var. eurycephala Widehead groundsel

native
Perennial herb

2019 Paul Aigner

2016 David Greenberger

Packera eurycephala var. lewisrosei Lewis' groundsel

• rare native
Perennial herb

2019 David popp

2016 David popp

2018 David popp

Packera ganderi Gander's ragwort

• rare native
Perennial herb

2017 Keir Morse

2010 Anna Bennett

Packera greenei Flame ragwort

native
Perennial herb

2019 Spencer Riffle

2019 Steve Matson

Packera hesperia Western ragwort

• rare native
Perennial herb

2008 Keir Morse

Packera indecora Elegant groundsel, Rayless mountain ragwort

• rare native
Perennial herb

2013 Kirsten Bovee

Packera ionophylla Tehachapi ragwort

• rare native
Perennial herb

2019 Matt Berger

Packera layneae Layne's ragwort

• rare native
Perennial herb

2020 Matt Berger

2022 Charles Russell

2021 Debra Ayres

Packera macounii Siskiyou mountain ragwort

• rare native
Perennial herb

2022 Ryan O'Dell

Senecio macounii Siskiyou mountain ragwort

• rare native
Perennial herb

2022 Ryan O'Dell

Packera multilobata Lobeleaf groundsel

native
Perennial herb

2007 Steve Matson

Senecio multilobatus Lobeleaf groundsel

native
Perennial herb

2007 Steve Matson

Packera pauciflora Alpine groundsel

native
Perennial herb

2022 Bob Sweatt

2009 Barry Breckling

Senecio pauciflorus Alpine groundsel

native
Perennial herb

2022 Bob Sweatt

2009 Barry Breckling

Packera pseudaurea Falsegold groundsel

native
Perennial herb

2018 Susan McDougall

2007 Ram Vasudev

Senecio pseudaureus Falsegold groundsel

native
Perennial herb

2018 Susan McDougall

2007 Ram Vasudev

Packera pseudaurea var. pseudaurea Falsegold groundsel

native
Perennial herb

2018 Susan McDougall

Packera cymbalarioides Rocky mountain groundsel

native
Perennial herb

2019 R.A. Chasey

2022 Bob Sweatt

Packera streptanthifolia Rocky mountain groundsel

native
Perennial herb

2019 R.A. Chasey

2022 Bob Sweatt

Senecio streptanthifolius Rocky mountain groundsel

native
Perennial herb

2019 R.A. Chasey

2022 Bob Sweatt

Packera streptanthifolia var. streptanthifolia Rocky mountain groundsel

native
Perennial herb

Packera streptanthifolia var. streptanthifolia

2019 R.A. Chasey

2014 Steven Perry

2015 BOB CASE

Packera subnuda Buek's groundsel

native
Perennial herb

2007 Gerald Carr

2009 Steve Matson

Packera subnuda var. subnuda Cleftleaf groundsel

native
Perennial herb

2007 Gerald Carr

Senecio cymbalarioides Cleftleaf groundsel

native
Perennial herb

2007 Gerald Carr

Packera werneriifolia Hoary groundsel

native
Perennial herb

2019 Bob Sweatt

2020 Bob Sweatt

2022 Bob Sweatt

Senecio werneriifolius Hoary groundsel

native
Perennial herb

2019 Bob Sweatt

2020 Bob Sweatt

2022 Bob Sweatt

Paeonia brownii Brown's peony, Mountain peony, Western paeony

native
Perennial herb

PAEONIACEAE

2020 Karen Swift

2019 Tamia Marg

2015 John Schmidt

Paeonia californica California peony

native
Perennial herb

PAEONIACEAE

2024 Ron Vanderhoff

2023 Ron Vanderhoff

2019 Susan McDougall

Palafoxia arida Desert palafox, Spanish needle

native
Annual herb

2008 Steve Matson

2010 Steve Matson

Palafoxia arida ssp. arida Desert palafox, Spanish needle

native
Annual herb

2008 Steve Matson

2010 Steve Matson

Palafoxia arida var. arida Desert needle, Desert palafox

native
Annual herb

2010 Steve Matson

2008 Steve Matson

Palafoxia arida var. gigantea Giant spanish needle

• rare native
Annual, Perennial herb

2024 Mike Russler

2019 Matt Berger

Pallenis maritima Estrella del Mar, Gold coin

non-native

2020 Ron Vanderhoff

Panicum acuminatum Western panicgrass, Western panicum, Western witch grass

native
Perennial grass

2017 David Greenberger

2020 Julie A. Kierstead

2021 R.A. Chasey

Panicum acuminatum var. acuminatum Western panicgrass, Western panicum, Western witch grass

native
Perennial grass

2017 David Greenberger

2020 Julie A. Kierstead

2021 R.A. Chasey

Dichanthelium acuminatum ssp. fasciculatum Pacific panic grass

native
Perennial grass

Dichanthelium acuminatum ssp. fasciculatum

2021 R.A. Chasey

2016 Steve Matson

Panicum acuminatum var. fasciculatum Pacific panic grass

native
Perennial grass

2021 R.A. Chasey

2016 Steve Matson

Panicum acuminatum var. lindheimeri Lindheimer panicgrass, Pacific panic grass

native
Perennial grass

2011 Steve Matson

Panicum acuminatum var. thermale Geysers panicum

• rare native
Perennial grass

2019 Matt Berger

Panicum antidotale Blue panicgrass, Blue panicum

• invasive non-native
Perennial grass

2020 Germania Salazar

Panicum capillare Old witch grass, Witchgrass

native
Annual grass

2022 Ron Vanderhoff

Panicum dichotomiflorum Fall panicgrass, Smooth witchgrass

non-native
Annual grass

2005 Adonis (Don) Tate

2011 Steve Matson

2005 Adonis (Don) Tate

Panicum dichotomiflorum ssp. dichotomiflorum Fall panic grass

non-native
Annual grass

Panicum dichotomiflorum ssp. dichotomiflorum

2011 Steve Matson

Panicum hirticaule Mexican panicgrass

native
Annual grass

2012 Keir Morse

Panicum hirticaule ssp. hirticaule Roughstalk witch grass

• rare native
Annual grass

2012 Keir Morse

Panicum miliaceum ssp. miliaceum Broomcorn millet

non-native
Annual grass

2015 Nicholas Stevenson NPS

Panicum oligosanthes var. scribnerianum Scribner's rosette grass

native
Annual grass

2023 John Rawlings

2011 Steve Matson

Panicum urvilleanum Desert panicgrass

native
Perennial grass

2008 Steve Matson

Panicum virgatum Switchgrass

non-native
Perennial grass

2010 Louis-M. Landry

Papaver argemone Long pricklyhead poppy, Pale rough fruited poppy

non-native
Annual herb

2016 Robert Carr

Papaver californicum Fire poppy, Western poppy

native
Annual herb

2014 Ron Vanderhoff

2015 Ron Vanderhoff

2020 Bryant Baker

Papaver dubium Blindeyes

non-native
Annual herb

2013 Zoya Akulova

Papaver heterophyllum Wind poppy

native
Annual herb

2017 Gary McDonald

2021 Mike Russler

2020 Joe Engelbrecht

Stylomecon heterophylla Wind poppy

native
Annual herb

2017 Gary McDonald

2021 Mike Russler

2020 Joe Engelbrecht

Papaver hybridum Round pricklyhead poppy

non-native
Annual herb

2007 Luigi Rignanese

2006 Luigi Rignanese

2007 Luigi Rignanese

Papaver orientale Oriental poppy

non-native
Annual herb

Papaver rhoeas Corn poppy

non-native
Annual herb

2019 Nathan Taxel

2021 Mike Russler

2022 R.A. Chasey

Papaver somniferum Opium poppy

non-native
Annual herb

2021 Ken Lunders

2022 David Strauch

Parapholis incurva Curved sicklegrass, Sickle grass

non-native
Annual grass

2022 R.A. Chasey

2021 Cynthia Powell

2022 Ron Vanderhoff

Parentucellia latifolia Broadleaf glandweed, Broadleaf parentucellia

non-native
Annual herb

2013 Annette Anzalone

2020 R.A. Chasey

2021 R.A. Chasey

Parentucellia latifolia ssp. albiflora Broadleaf glandweed, Broadleaf parentucellia

non-native
Annual herb

2013 Annette Anzalone

2020 R.A. Chasey

2021 R.A. Chasey

Parentucellia viscosa Yellow glandweed, Yellow parentucellia

• invasive non-native
Annual herb

2021 Janice Kuch

2022 Donald Burk

2017 Eric Wrubel

Parietaria hespera Pelitory, Pellitory, Rillita pellitory

native
Annual herb

2022 Matt Berger

2019 Ron Vanderhoff

2021 Ron Vanderhoff

Parietaria hespera var. californica California pellitory

native
Annual herb

2003 Keir Morse

Parietaria hespera var. hespera Rillita pellitory

native
Annual herb

2020 David Greenberger

2018 Ron Vanderhoff

2022 Matt Berger

Parietaria diffusa Spreading pellitory

non-native
Perennial herb

2021 Ron Vanderhoff

Parietaria judaica Spreading pellitory

non-native
Perennial herb

2021 Ron Vanderhoff

Parietaria pensylvanica Pennsylvania pellitory

native
Annual herb

2022 Donald Burk

2023 Donald Burk

2009 Michael Charters

Parkinsonia aculeata Jerusalem thorn, Mexican palo verde

• invasive non-native
Tree

2021 Ron Vanderhoff

Cercidium floridum Blue paloverde

native
Tree

2023 Keir Morse

2004 James M. Andre

2023 Keir Morse

Parkinsonia florida Blue paloverde

native
Tree

2023 Keir Morse

2004 James M. Andre

2023 Keir Morse

Parkinsonia florida ssp. peninsulare Blue paloverde

native
Tree

2023 Keir Morse

2004 James M. Andre

2023 Keir Morse

Cercidium microphyllum Yellow paloverde

• rare native
Tree, Shrub

2022 Janith Johnson

2020 Jerzy Gronostalski

2016 Keir Morse

Parkinsonia microphylla Yellow paloverde

• rare native
Tree, Shrub

2022 Janith Johnson

2020 Jerzy Gronostalski

2016 Keir Morse

Parnassia cirrata San bernardino grass of parnassus

native
Perennial herb

2021 Aaron Echols

Parnassia cirrata var. intermedia Cascade grass of parnassus

• rare native
Perennial herb

2018 joaquin hale

2023 Jim Xerogeanes

Parnassia fimbriata Fringed grass of parnassus, Rocky mountain parnassia

native
Perennial herb

2020 Jane Cohn

2012 Belinda Lo

Parnassia fimbriata var. intermedia Fringed grass of parnassus, Rocky mountain parnassia

native
Perennial herb

2020 Jane Cohn

2012 Belinda Lo

Parnassia californica Marsh grass of parnassus

native
Perennial herb

2019 Bob Sweatt

2020 Bob Sweatt

2008 Keir Morse

Parnassia palustris Marsh grass of parnassus

native
Perennial herb

2019 Bob Sweatt

2020 Bob Sweatt

2008 Keir Morse

Parnassia palustris var. parviflora Small flower parnassia

• rare native
Perennial herb

2021 Steve Matson

2008 Mary Winter

Parnassia parviflora Small flower parnassia

• rare native
Perennial herb

2021 Steve Matson

2008 Mary Winter

Paronychia ahartii Ahart's nailwort, Ahart's paronychia

• rare native
Annual herb

2023 Donald Burk

Paronychia franciscana California whitlow wort, Franciscan paronychia, San francisco nailwort

non-native
Perennial herb

2019 John Rawlings

2018 Brian Charles

2015 Julia King

Parthenium argentatum Guayule

non-native
Perennial herb

Parthenium hysterophorus Santa maria feverfew

• invasive non-native
Perennial herb

2019 Nathan Taxel

2018 Ron Vanderhoff

Parthenium incanum Mariola

non-native
Perennial herb

Parthenocissus inserta Woodbine

non-native
Vine, Shrub

2016 Ron Vanderhoff

2022 Ron Vanderhoff

2016 Ron Vanderhoff

Parthenocissus vitacea Woodbine

non-native
Vine, Shrub

2016 Ron Vanderhoff

2022 Ron Vanderhoff

2016 Ron Vanderhoff

Parthenocissus quinquefolia Virginia creeper

non-native
Vine, Shrub

2011 Ramona Robison

2023 Ron Vanderhoff

Parthenocissus tricuspidata Boston ivy

non-native
Vine, Shrub

2023 Ron Vanderhoff

Paspalum dilatatum Dallis grass, Dallisgrass

non-native
Perennial grass

2018 Ron Vanderhoff

2017 Barbara Boethling

2021 Ron Vanderhoff

Paspalum distichum Knot grass, Knotgrass

native
Perennial grass

2011 Steve Matson

2017 Ron Vanderhoff

Paspalum paspaloides Knot grass, Knotgrass

native
Perennial grass

2011 Steve Matson

2017 Ron Vanderhoff

Paspalum notatum Bahia grass, Bahiagrass

non-native
Perennial grass

2001 CDFA

2010 Moorea Biocode

Paspalum urvillei Vasey's grass

• invasive non-native
Perennial grass

2021 Jennifer Mo

2022 Jennifer Mo

Paspalum vaginatum Seashore paspalum

• invasive non-native
Perennial grass

2020 Ron Vanderhoff

2021 Ron Vanderhoff

2018 Ron Vanderhoff

Passiflora caerulea Bluecrown passionflower

non-native
Vine

2018 Ron Vanderhoff

2019 Nathan Taxel

Passiflora manicata Red passionflower

non-native
Vine

2015 Zoya Akulova

Passiflora mollissima

• invasive non-native
Vine

2016 Patrick Nicholson

2017 Ramona Robison

2019 Ramona Robison

Passiflora tarminiana

• invasive non-native
Vine

2016 Patrick Nicholson

2017 Ramona Robison

2019 Ramona Robison

Passiflora tripartita var. mollissima

• invasive non-native
Vine

2016 Patrick Nicholson

2017 Ramona Robison

2019 Ramona Robison

Pastinaca sativa Garden parsnip, Wild parsnip

non-native
Perennial herb

2018 Sheri Hagwood

2006 Jeff Abbas

Paulownia tomentosa Princesstree

non-native
Perennial herb

Pachystima myrsinites Oregon boxleaf, Oregon boxwood

native
Shrub

2021 Dana York

2018 David popp

2021 Hunter Breck

Paxistima myrsinites Oregon boxleaf, Oregon boxwood

native
Shrub

2021 Dana York

2018 David popp

2021 Hunter Breck

Mitella breweri Brewer's miterwort

native
Perennial herb

2021 Charles Russell

2020 Bob Sweatt

Pectiantia breweri Brewer's miterwort

native
Perennial herb

2021 Charles Russell

2020 Bob Sweatt

Mitella ovalis Coastal miterwort

native
Perennial herb

2021 Dana York

Pectiantia ovalis Coastal miterwort

native
Perennial herb

2021 Dana York

Mitella pentandra Alpine mitrewort

native
Perennial herb

2011 Steve Matson

2020 Bob Sweatt

2011 Steve Matson

Pectiantia pentandra Alpine mitrewort

native
Perennial herb

2011 Steve Matson

2020 Bob Sweatt

2011 Steve Matson

Pectis filipes Fivebract chinchweed

non-native
Annual herb

Pectis papposa Manybristle chinchweed

native
Annual herb

2022 Steve Matson

Pectis papposa var. papposa Chinch weed, Manybristle cinchweed

native
Annual herb

2015 Steve Matson

Pectocarya heterocarpa Chuckwalla combseed, Chuckwalla pectocarya, Hairy leaved comb bur

native
Annual herb

2022 Steve Matson

Pectocarya linearis Sagebrush combseed

native
Annual herb

2014 Steve Matson

Pectocarya linearis ssp. ferocula Sagebrush combseed, Slender comb seed, Slender pectocarya

native
Annual herb

2014 Steve Matson

Pectocarya penicillata Sleeping combseed, Winged comb seed, Winged pectocarya

native
Annual herb

2017 Ron Vanderhoff

2022 Steve Matson

Pectocarya peninsularis Baja pectocarya, Peninsular pectocarya

native
Annual herb

2003 Brent Miller

Pectocarya platycarpa Broad fruited combseed, Broad nutted comb bur, Broadfruit combseed

native
Annual herb

2022 Steve Matson

2016 Steve Matson

Pectocarya recurvata Arch nutted comb bur, Curvenut combseed

native
Annual herb

2020 David Greenberger

2023 Steve Matson

2020 Steve Matson

Pectocarya setosa Moth combseed, Stiff stemmed comb bur

native
Annual herb

2014 Steve Matson

2009 Steve Matson

2014 Steve Matson

Pedicularis attollens Attol lousewort, Little elephant head, Little elephant's head

native
Perennial herb

2019 Timothy Boomer

2022 Ian Archer Winick

2008 Ron Wolf

Pedicularis attollens ssp. attollens Little elephantshead

native
Perennial herb

2009 Gary A. Monroe

Pedicularis bracteosa Bracted lousewort

native
Perennial herb

2019 Matt Berger

2021 R.A. Chasey

2011 Dana York

Pedicularis bracteosa var. atrosanguinea Bracted lousewort

native
Perennial herb

Pedicularis bracteosa var. atrosanguinea

2019 Matt Berger

2021 R.A. Chasey

2011 Dana York

Pedicularis bracteosa var. bracteosa Bracted lousewort

native
Perennial herb

2019 Matt Berger

2021 R.A. Chasey

2011 Dana York

Pedicularis bracteosa var. paysoniana Bracted lousewort

native
Perennial herb

2019 Matt Berger

2021 R.A. Chasey

2011 Dana York

Pedicularis bracteosa var. flavida Towering lousewort, Yellowish lousewort

• rare native
Perennial herb

2022 Dana York

2021 R.A. Chasey

Pedicularis centranthera Dwarf lousewort

• rare native
Perennial herb

2009 Lee Dittmann

2012 Lee Dittmann

Pedicularis contorta Coiled lousewort, Curved beak lousewort

• rare native
Perennial herb

2022 Dana York

2019 Richard Spjut

2021 R.A. Chasey

Pedicularis contorta var. contorta Coiled lousewort, Curved beak lousewort

• rare native
Perennial herb

2022 Dana York

2019 Richard Spjut

2021 R.A. Chasey

Pedicularis crenulata Meadow lousewort, Scalloped leaved lousewort

• rare native
Perennial herb

2005 Steve Matson

2018 George Sherman

Pedicularis densiflora Warrior's plume, Indian warrior

native
Perennial herb

2015 Dee Warenycia

2019 Jason Mills

2017 Joshua Borkowski

Pedicularis dudleyi Dudley's lousewort

• rare native
Perennial herb

2020 Ron Weaver

2012 Terrence Gosliner

2020 Terrence Gosliner

Pedicularis groenlandica Elephant head lousewort, Elephant heads, Elephant's head

native
Perennial herb

2022 Melissa Harbert

2021 Mike Russler

Pedicularis howellii Howell's lousewort

• rare native
Perennial herb

2019 Matt Berger

2015 John Doyen

2012 Dana York

Pedicularis procera Giant lousewort

non-native
Perennial herb

Pedicularis racemosa Leafy lousewort, Sickletop lousewort

native
Perennial herb

2014 Steve Matson

Pedicularis racemosa ssp. alba Leafy lousewort, Sickletop lousewort

native
Perennial herb

2015 Barry Breckling

2013 Trent M. Draper

Pedicularis racemosa var. alba Leafy lousewort, Sickletop lousewort

native
Perennial herb

2015 Barry Breckling

2013 Trent M. Draper

Pedicularis semibarbata Bearded lousewort, Pine lousewort, Pine woods lousewort

native
Perennial herb

2020 Bob Sweatt

2021 Mike Russler

2019 Diane Etchison

Pedicularis semibarbata var. charlestonensis Bearded lousewort, Pine lousewort, Pine woods lousewort

native
Perennial herb

Pedicularis semibarbata var. charlestonensis

2020 Bob Sweatt

2021 Mike Russler

2019 Diane Etchison

Pediomelum californicum California indian breadroot

native
Perennial herb

2022 Catherine Chang

2023 Helen Hancock

2019 David Greenberger

Pediomelum castoreum Beaver indian breadroot

• rare native
Perennial herb

2005 James M. Andre

2011 Teague Embrey

Peganum harmala Harmal peganum

• invasive non-native
Perennial herb

NITRARIACEAE

2011 Debra L. Cook

2021 Caleb Cole

2001 CDFA

Pelargonium capitatum Rose scented geranium

non-native
Perennial herb, Shrub

2018 Julian Geoghegan

2010 Zoya Akulova

Pelargonium grossularioides Gooseberry geranium, Gooseberry pelargonium

non-native
Annual, Perennial herb

2023 Ron Vanderhoff

2018 Ron Vanderhoff

2020 Julia Markey

Pelargonium odoratissimum Apple geranium

non-native
Perennial herb, Shrub

Pelargonium peltatum Ivy geranium, Ivyleaf geranium

non-native
Perennial herb, Shrub

2011 Steve Grayson and Barbara Kriz

2022 Nathan Dendinger

2018 Ron Vanderhoff

Pelargonium graveolens Geranium, Oak leafed pelargonium, Oakleaf geranium

non-native
Shrub (stem succulent)

Pelargonium vitifolium Geranium, Grape leafed geranium, Grapeleaf geranium

non-native
Perennial herb

Jo-Ann Ordano 2000 California Academy of Sciences

2020 Jake Gifford

2008 Neal Kramer

Pelargonium domesticum Regal pelargonium

non-native
Shrub (stem succulent)

2018 Zoya Akulova

2012 Zoya Akulova

Pelargonium Xdomesticum Regal pelargonium

non-native
Shrub (stem succulent)

2018 Zoya Akulova

2012 Zoya Akulova

Pelargonium hortorum Garden pelargonium, Zonal geranium

non-native
Shrub (stem succulent)

2020 Ron Vanderhoff

2021 Ron Vanderhoff

2023 Andy Ford

Pelargonium Xhortorum Garden pelargonium, Zonal geranium

non-native
Shrub (stem succulent)

2020 Ron Vanderhoff

2021 Ron Vanderhoff

2023 Andy Ford

Pellaea andromedifolia Coffee cliffbrake, Coffee fern

native
Fern

2023 Steve Conger

2021 Steve Matson

2021 Mike Russler

Pellaea brachyptera Sierra cliff brake, Sierra cliffbrake

native
Fern

2020 R.A. Chasey

Pellaea breweri Brewer's cliff brake, Brewer's cliffbrake

native
Fern

2020 Bob Sweatt

2022 Bob Sweatt

2020 Bob Sweatt

Pellaea bridgesii Bridges' cliff brake, Bridges' cliffbrake

native
Fern

2019 Bob Sweatt

2019 Matt Berger

2021 R.A. Chasey

Pellaea mucronata Bird's foot fern, Birdfoot cliffbrake, Birdfoot fern

native
Fern

2012 Ron Vanderhoff

2022 Helen Hancock

2023 Julia Markey

Pellaea mucronata ssp. californica California cliff brake, bird's foot fern

native
Fern

2020 Matt Berger

2019 Matt Berger

2020 Matt Berger

Pellaea mucronata var. californica California cliff brake, bird's foot fern

native
Fern

2020 Matt Berger

2019 Matt Berger

2020 Matt Berger

Pellaea mucronata ssp. mucronata Bird's foot fern

native
Fern

2018 Rachelle Gray

2023 Helen Hancock

Pellaea mucronata var. mucronata Bird's foot fern

native
Fern

2018 Rachelle Gray

2023 Helen Hancock

Pellaea truncata Cliff brake, Spiny cliffbrake

• rare native
Fern (rhizomatous)

2011 Keir Morse

Pellaea glaciogena

native
Fern (rhizomatous)

Peltandra virginica Green arrow arum, Peltandra

non-native
Perennial herb

2010 Louis-M. Landry

Cenchrus ciliaris Buffelgrass

non-native
Perennial grass

2022 Ron Vanderhoff

Pennisetum ciliare Buffelgrass

non-native
Perennial grass

2022 Ron Vanderhoff

Pennisetum clandestinum Kikuyu grass, Kikuyugrass

• invasive non-native
Perennial grass

2020 Ron Vanderhoff

2017 Josh Nuzzo

Pennisetum glaucum Pearl millet

non-native
Annual, Perennial grass

1999 Nick Kurzenko

2007 Louis-M. Landry

2008 Louis-M. Landry

Pennisetum latifolium Uruguayan fountaingrass

non-native
Perennial grass

2001 CDFA

Pennisetum purpureum Elephant grass

non-native
Perennial grass

2018 Zoya Akulova

Pennisetum setaceum Crimson fountaingrass, Fountaingrass

• invasive non-native
Perennial grass

2023 Ron Vanderhoff

2021 Steve Matson

Pennisetum villosum Feathertop

• invasive non-native
Perennial grass

2018 Ron Vanderhoff

2023 Ron Vanderhoff

2021 Julian Geoghegan

Penstemon albomarginatus White margined beardtongue, Whitemargin beardtongue

• rare native
Perennial herb

2019 Sonie Sampson

Penstemon anguineus Siskiyou beardtongue

native
Perennial herb

2017 Steve Matson

Penstemon azureus Azure penstemon, Blue penstemon

native
Perennial herb

2022 Steve Matson

Penstemon azureus var. angustissimus Azure penstemon

native
Perennial herb

2005 Steve Matson

Penstemon azureus ssp. azureus Azure penstemon

native
Perennial herb

2005 Steve Matson

Penstemon azureus var. azureus Azure penstemon

native
Perennial herb

2005 Steve Matson

Penstemon barnebyi Barneby's beardtongue, White river valley beardtongue

• rare native
Perennial herb

2006 James M. Andre

Penstemon bicolor Pinto beardtongue, Two color beardtongue

native
Perennial herb

2004 James M. Andre

2006 James M. Andre

2004 James M. Andre

Penstemon bicolor ssp. bicolor Pinto beardtongue, Two color beardtongue

native
Perennial herb

2004 James M. Andre

2006 James M. Andre

2004 James M. Andre

Penstemon bicolor ssp. roseus Pinto beardtongue

• rare native
Perennial herb

2006 Rich Crawford

2013 Cindy Hopkins

2013 Xeric Specialties

Penstemon caesius San bernardino beardtongue

native
Perennial herb

2019 Diane Etchison

2016 Diane Etchison

2022 Arlee Montalvo

Penstemon caespitosus var. desertipicti Mat penstemon

non-native
Perennial herb

Penstemon calcareus Limestone beardtongue

• rare native
Perennial herb

2017 Steve Matson

Penstemon californicus California beardtongue, California penstemon

• rare native
Perennial herb

2019 Matt Berger

Penstemon centranthifolius Scarlet bugler

native
Perennial herb

2019 Ron Vanderhoff

2017 Diane Etchison

2021 Mike Russler

Penstemon cinereus Gray beardtongue

• rare native
Perennial herb

2020 Julie A. Kierstead

Penstemon cinicola Ash beardtongue, Ash penstemon

• rare native
Perennial herb

2020 Steve Matson

Penstemon clevelandii Cleveland's beardtongue

native
Perennial herb

2019 Matt Berger

Penstemon clevelandii var. clevelandii Cleveland's beardtongue

native
Perennial herb

2020 Matt Berger

2019 Matt Berger

2016 Keir Morse

Penstemon clevelandii var. connatus San Jacinto beardtongue

• rare native
Perennial herb

2019 Matt Berger

Penstemon clevelandii var. mohavensis Mohave beard's tongue, Mojave beardtongue

native
Perennial herb

2018 Lisa Schauer

Penstemon confertus Yellow penstemon

non-native
Perennial herb

Penstemon davidsonii Davidson's penstemon

native
Perennial herb

2014 Steve Matson

Penstemon davidsonii var. menziesii Davidson's penstemon

native
Perennial herb

2014 Steve Matson

Penstemon davidsonii var. praeteritus Davidson's penstemon

native
Perennial herb

2014 Steve Matson

Penstemon davidsonii var. davidsonii Davidson's beardtongue, Davidson's penstemon

native
Perennial herb

2020 Bob Sweatt

2014 Steve Matson

Penstemon deustus Hot rock beardtongue, Rock penstemon, Hot-Rock Penstemon

native
Perennial herb

2023 David Ramirez

2020 David Greenberger

2003 Steve Matson

Penstemon deustus var. pedicellatus Hot rock beardtongue, Scabland penstemon

native
Perennial herb

2020 Susan McDougall

2020 Bob Sweatt

2019 Matt Berger

Penstemon deustus var. suffrutescens Hot rock beardtongue, Scabland penstemon

native
Perennial herb

2019 David Greenberger

2021 Mike Russler

2018 Chico Hiking Association

Penstemon eatonii Eaton firecracker, Eaton's penstemon

native
Perennial herb

2022 Bob Sweatt

2020 Susan McDougall

Penstemon eatonii ssp. eatonii Eaton's penstemon

native
Perennial herb

2009 Steve Matson

Penstemon eatonii var. eatonii Eaton's penstemon

native
Perennial herb

2009 Steve Matson

Penstemon eatonii ssp. undosus Eaton's firecracker, Eaton's penstemon

native
Perennial herb

2017 Thomas Egan

2019 Manzanita Dictionary

2020 David Greenberger

Penstemon eatonii var. undosus Eaton's firecracker, Eaton's penstemon

native
Perennial herb

2017 Thomas Egan

2019 Manzanita Dictionary

2020 David Greenberger

Penstemon filiformis Thread leaved beardtongue, Threadleaf beardtongue

• rare native
Perennial herb

2015 Steve Matson

2019 Julie Kierstead Nelson

2015 Steve Matson

Penstemon floridus Panamint beardtongue, Rose penstemon

native
Perennial herb

2019 Matt Berger

2022 Steve Matson

Penstemon floridus var. austinii Austin's beardtongue

native
Perennial herb

2019 Matt Berger

Penstemon floridus var. floridus Panamint beardtongue, Rose penstemon

native
Perennial herb

2022 Steve Matson

Penstemon fruticiformis Death valley beardtongue, Death valley penstemon, Desert beardtongue

native
Perennial herb

2017 Steve Matson

2015 Steve Matson

Penstemon fruticiformis ssp. amargosae Death valley beardtongue

• rare native
Perennial herb

2017 Steve Matson

Penstemon fruticiformis var. amargosae Death valley beardtongue

• rare native
Perennial herb

2017 Steve Matson

Penstemon fruticiformis var. fruticiformis Desert beardtongue

native
Perennial herb

Penstemon fruticiformis var. fruticiformis

2015 Steve Matson

2005 Steve Matson

2015 Steve Matson

Penstemon glaber Sawsepal penstemon

non-native
Perennial herb

Penstemon gracilentus Slender beardtongue, Slender penstemon

native
Perennial herb

2003 Steve Matson

2020 Susan McDougall

2012 Steve Matson

Penstemon grinnellii Grinnell's beardtongue

native
Perennial herb

2021 Emily Sluiman

2020 Bryant Baker

2021 Amber Bedgood

Penstemon grinnellii var. grinnellii Grinnell's beardtongue

native
Perennial herb

2014 Steve Matson

Penstemon grinnellii ssp. scrophularioides Grinnell's beardtongue

native
Perennial herb

Penstemon grinnellii ssp. scrophularioides

2015 Judy and Barry Breckling

2021 Dee Shea Himes

2015 Judy and Barry Breckling

Penstemon grinnellii var. scrophularioides Grinnell's beardtongue

native
Perennial herb

Penstemon grinnellii var. scrophularioides

2015 Judy and Barry Breckling

2021 Dee Shea Himes

2015 Judy and Barry Breckling

Penstemon heterodoxus Sierra beardtongue, Sierra penstemon

native
Perennial herb

2021 Mike Russler

2016 Steve Matson

Penstemon heterodoxus var. cephalophorus Sierra beardtongue

native
Perennial herb

Penstemon heterodoxus var. cephalophorus

2021 Mike Russler

Penstemon heterodoxus var. heterodoxus Sierra beardtongue

native
Perennial herb

2021 Steve Matson

Penstemon heterodoxus var. shastensis Shasta beardtongue

• rare native
Perennial herb

2014 Sierra Pacific Industries

2016 John Doyen

2009 Sierra Pacific Industries

Penstemon heterophyllus Bunchleaf penstemon, Foothill penstemon

native
Perennial herb

2016 Michael Mitchell

2021 Charles Russell

2020 Alexander Darnielle

Penstemon heterophyllus var. australis Southern foothill penstemon

native
Perennial herb

2020 Ron Vanderhoff

2018 Jason Matthias Mills

Penstemon heterophyllus var. heterophyllus Foothill penstemon

native
Perennial herb

Penstemon heterophyllus var. heterophyllus

2018 Gary McDonald

2012 Gary McDonald

2019 David Greenberger

Penstemon heterophyllus var. purdyi Purdy's foothill penstemon

native
Perennial herb

2019 David Greenberger

2020 Ken Hickman

2019 David Greenberger

Penstemon humilis Low beardtongue

native
Perennial herb

2006 Steve Matson

Penstemon humilis ssp. obtusifolius Low beardtongue

native
Perennial herb

2006 Steve Matson

Penstemon humilis var. brevifolius Low beardtongue

native
Perennial herb

2006 Steve Matson

Penstemon decurvus Low beardtongue

native
Perennial herb

2019 Susan McDougall

2022 Julie A. Kierstead

2019 Susan McDougall

Penstemon humilis var. humilis Low beardtongue

native
Perennial herb

2019 Susan McDougall

2022 Julie A. Kierstead

2019 Susan McDougall

Penstemon incertus Mojave beardtongue, Western desert penstemon

native
Shrub

2019 Matt Berger

2016 Richard Spjut

Penstemon janishiae Antelope valley beardtongue

• rare native
Perennial herb

2005 Christopher L. Christie

2006 Gary A. Monroe

2018 Sierra Pacific Industries

Penstemon labrosus San gabriel beardtongue

native
Perennial herb

2019 Diane Etchison

Penstemon laetus Gay penstemon, Mountain blue penstemon

native
Perennial herb

2010 Gerald Carr

Penstemon laetus var. laetus Mountain blue penstemon

native
Perennial herb

2022 Mike Russler

Penstemon laetus ssp. sagittatus Mountain blue penstemon

native
Perennial herb

2010 Gerald Carr

Penstemon laetus var. sagittatus Mountain blue penstemon

native
Perennial herb

2010 Gerald Carr

Penstemon monoensis Mono penstemon

native
Perennial herb

2012 Steve Matson

2021 Matt Berger

2012 Steve Matson

Penstemon neotericus Derived penstemon, Plumas county beardtongue

native
Perennial herb

2021 Alaine Arslan

Penstemon newberryi Mountain pride

native
Perennial herb

2016 Steve Matson

Penstemon newberryi var. berryi Berry's mountain pride

native
Perennial herb

2021 Steve Conger

Penstemon newberryi var. newberryi Newberry's penstemon

native
Perennial herb

2016 Steve Matson

2011 Steve Matson

Penstemon newberryi var. sonomensis Sonoma beardtongue

• rare native
Perennial herb

2020 Tim Miller

2018 Jennifer Riddell

Penstemon palmeri Palmer's penstemon

native
Perennial herb

2011 Steve Matson

2019 Diane Rose

2011 Steve Matson

Penstemon palmeri var. eglandulosus Palmer's penstemon

native
Perennial herb

2011 Steve Matson

2019 Diane Rose

2011 Steve Matson

Penstemon palmeri var. palmeri Palmer's penstemon

native
Perennial herb

2019 Matt Berger

Penstemon papillatus Inyo beardtongue

• rare native
Perennial herb

2012 Steve Matson

2014 Steve Matson

2012 Steve Matson

Penstemon parvulus Short stalk penstemon, Small penstemon

native
Perennial herb

2011 Dana York

2015 Steve Matson

Penstemon patens Lone pine beardtongue

native
Perennial herb

2022 Steve Matson

Penstemon personatus Closed throated beardtongue, Closethroat beardtongue

• rare native
Perennial herb

2019 Matt Berger

2010 John Dittes

Penstemon procerus Littleflower penstemon, Small flowered penstemon

native
Perennial herb

2017 Steve Matson

2006 Steve Matson

Penstemon procerus var. procerus Littleflower penstemon, Small flowered penstemon

native
Perennial herb

2017 Steve Matson

2006 Steve Matson

Penstemon procerus var. formosus Pincushion beardtongue, Western small flowered penstemon

native
Perennial herb

2006 Steve Matson

Penstemon pseudospectabilis Desert penstemon

native
Perennial herb

2008 Steve Matson

Penstemon purpusii Snow mountain beardtongue, Snow mtn. beardtongue

native
Perennial herb

2017 Steve Matson

Penstemon rattanii Rattan's beardtongue

native
Perennial herb

2021 Larry Nichols

2015 Jimmie Sierra

2021 Larry Nichols

Penstemon rattanii var. kleei Santa cruz mtns. beardtongue

• rare native
Perennial herb

2022 Lawrence Erickson

2012 Dylan Neubauer

Penstemon rattanii var. rattanii Rattan's beardtongue

native
Perennial herb

2021 Larry Nichols

2013 Dana York

Penstemon roezlii Regel's mountain penstemon

native
Perennial herb

2011 Steve Matson

2019 Matt Berger

Penstemon rostriflorus Beaked penstemon, Bridge penstemon, Bridge's penstemon

native
Perennial herb

2010 Steve Matson

2008 Steve Matson

2010 Steve Matson

Penstemon rupicola Cliff beardtongue, Rock beardtongue, Rock penstemon

native
Perennial herb

2018 Matt Berger

2020 Richard Spjut

2005 Christopher L. Christie

Penstemon rydbergii Rydberg's penstemon

native
Perennial herb

2020 Bob Sweatt

2021 Mike Russler

Penstemon rydbergii var. aggregatus Rydberg's penstemon

native
Perennial herb

2020 Bob Sweatt

2021 Mike Russler

Penstemon rydbergii var. rydbergii Rydberg's penstemon

native
Perennial herb

2020 Bob Sweatt

2021 Mike Russler

Penstemon rydbergii var. oreocharis Herbaceous penstemon, Meadow beardtongue, Mountain meadow beardtongue

native
Perennial herb

2013 James Gonsman

2021 Mike Russler

2023 Alaine Arslan

Penstemon scapoides Pinyon beardtongue

• rare native
Perennial herb

2009 Steve Matson

2010 Steve Matson

2009 Steve Matson

Penstemon speciosus Royal beardtongue, Royal penstemon, Showy penstemon

native
Perennial herb

2023 Richard Dryden

2006 Keir Morse

2022 Julie A. Kierstead

Penstemon spectabilis Showy penstemon

native
Perennial herb

2019 Matt Berger

2009 Neal Kramer

2022 Ron Vanderhoff

Penstemon spectabilis var. spectabilis Showy penstemon

native
Perennial herb

2020 Ron Vanderhoff

2022 Ron Vanderhoff

Penstemon spectabilis var. subviscosus Showy penstemon

native
Perennial herb

2022 Arlee Montalvo

2018 Michelle Tollett

Penstemon stephensii Stephen's penstemon, Stephens' penstemon, Stephens's beardtongue

• rare native
Perennial herb

2011 Shannon Henke

2011 Duncan S. Bell

2005 James M. Andre

Penstemon strictus Rocky mountain penstemon

non-native
Perennial herb

2019 Bob Sweatt

2014 Steve Matson

2019 Bob Sweatt

Penstemon subglaber Smooth penstemon

non-native
Perennial herb

2014 Steve Matson

Penstemon sudans Susanville beardtongue, Volcanic beardtongue

• rare native
Shrub (stem succulent)

2019 David Greenberger

2019 Matt Berger

Penstemon thompsoniae Thompson's beardtongue

• rare native
Perennial herb

2005 James M. Andre

2006 Trent M. Draper

2013 James M. Andre

Penstemon thompsoniae ssp. jaegeri Thompson's beardtongue

• rare native
Perennial herb

2005 James M. Andre

2006 Trent M. Draper

2013 James M. Andre

Penstemon thurberi Thurber penstemon, Thurber's beardtongue, Thurber's penstemon

• rare native
Perennial herb

2005 Keir Morse

Penstemon tracyi Tracy's beardtongue, Trinity penstemon

• rare native
Perennial herb

2019 John Game

2020 Christian Schwarz

Penstemon utahensis Utah penstemon

• rare native
Perennial herb

2008 Steve Matson

Penstemon venustus Venus penstemon

non-native
Shrub (stem succulent)

2005 Christopher L. Christie

2009 Gary A. Monroe

Penstemon Xdubius Hybrid penstemon

native
Perennial herb

Penstemon Xparishii Hybrid beardtongue

native
Perennial herb

2003 Michelle Cloud-Hughes

2002 Charles E. Jones

Pentachaeta alsinoides Tiny pygmy daisy, Tiny pygmydaisy

native
Annual herb

2021 Ken Hickman

2022 Ken Hickman

2023 David Gowen

Pentachaeta aurea Golden chaetopappa, Golden rayed pentachaeta

native
Annual herb

2022 Ron Vanderhoff

Pentachaeta aurea ssp. allenii Allen's daisy

• rare native
Annual herb

2022 Ron Vanderhoff

Pentachaeta aurea ssp. aurea Golden chaetopappa

• rare native
Perennial herb

2013 Keir Morse

Pentachaeta bellidiflora White rayed pentachaeta, Whiteray pygmydaisy

• rare native
Annual herb

2021 Diana Wahl

2020 Diana Wahl

2015 Neal Kramer

Pentachaeta exilis Meager pygmydaisy, Slender pentachaeta

native
Annual herb

2019 David Greenberger

2022 Mike Russler

Pentachaeta exilis ssp. aeolica Meager pygmydaisy, Slender pentachaeta

• rare native
Annual herb

2019 David Greenberger

2022 Mike Russler

Pentachaeta exilis ssp. exilis Meager pygmydaisy, Slender pentachaeta

native
Annual herb

1998 Dean Wm. Taylor

2006 Laura Ann Eliassen

Pentachaeta fragilis Fragile pygmy daisy, Fragile pygmydaisy

• rare native
Annual herb

2020 Matt Berger

2017 Neal Kramer

Pentachaeta lyonii Lyon's pentachaeta, Lyon's pygmydaisy

• rare native
Annual herb

2021 Maisie Borg

2003 Michael Charters

2021 Maisie Borg

Pentagramma glanduloviscida

Fern

2013 Keir Morse

Pentagramma triangularis ssp. maxonii Maxon's gold back fern

native
Fern

2019 R.A. Chasey

Pentagramma pallida Silver back fern

native
Fern

2021 Steve Matson

Pentagramma triangularis ssp. rebmanii

Fern

2014 Keir Morse

2017 Keir Morse

Pentagramma triangularis Gold back fern, Goldenback fern

native
Fern

2021 Ron Vanderhoff

2021 Mike Russler

2024 Steve Conger

Pentagramma triangularis var. triangularis Gold back fern, Goldenback fern

native
Fern

Pentagramma triangularis var. triangularis

2021 Ron Vanderhoff

2021 Mike Russler

2024 Steve Conger

Pentagramma triangularis ssp. triangularis Gold back fern

native
Fern

Pentagramma triangularis ssp. triangularis

2008 Steve Matson

2019 Gary McDonald

Pentagramma triangularis ssp. viscosa Sticky gold back fern

native
Fern

2014 Keir Morse

Pentameris airoides ssp. airoides False Hair-grass

non-native
Perennial grass

2016 Keir Morse

Peraphyllum ramosissimum Wild crab apple

native
Shrub

2014 Steve Matson

Pereskia aculeata Barbados shrub

non-native
Perennial herb

Pericallis cruenta

non-native
Annual, Perennial herb

Pericome caudata Mountain tail leaf, Tailed pericome

native
Perennial herb

2012 Steve Matson

2015 Steve Matson

Perideridia bacigalupii Bacigalupi's yampah, Mother lode yampah

• rare native
Perennial herb

2007 Chris Winchell

Perideridia bolanderi Bolander's yampah

native
Perennial herb

2022 Mike Russler

Perideridia bolanderi ssp. bolanderi Bolander's yampah

native
Perennial herb

2022 Mike Russler

Perideridia californica California yampah

native
Perennial herb

2018 Gary McDonald

2022 Helen Hancock

2013 Gary McDonald

Perideridia gairdneri Gairdner's yampah, Gardner's yampah

native
Perennial herb

2023 Cynthia Powell

2021 Larry Dizmang

2021 Mary Conway

Perideridia gairdneri ssp. borealis Common yampah, Northern gairdner's yampah

native
Perennial herb

2009 Trent M. Draper

Perideridia gairdneri ssp. gairdneri Gairdner's yampah

• rare native
Perennial herb

2021 Mary Conway

2021 Larry Dizmang

2021 Scott Yarger

Perideridia howellii Howell's yampah

native
Perennial herb

2010 Barry Breckling

2008 Chris Winchell

Perideridia kelloggii Kellogg's yampah, Yampah

native
Perennial herb

2022 Suzanne L. Weakley

2023 Ryan O'Dell

2022 R.A. Chasey

Perideridia lemmonii Lemmon's yampah

native
Perennial herb

2013 Steve Matson

Perideridia leptocarpa Narrow seeded yampah, Narrowseed yampah

• rare native
Perennial herb

2013 Steve Matson

2015 Dana York

Perideridia oregana Oregon yampah

native
Perennial herb

2008 Keir Morse

2023 Alaine Arslan

2006 Keir Morse

Perideridia parishii Parish's yampah

native
Perennial herb

2019 Steve Matson

2019 Diane Etchison

2019 Steve Matson

Perideridia parishii ssp. latifolia Parish's yampah, Wide leaved parish's yampah

native
Perennial herb

2020 Bob Sweatt

Perideridia parishii ssp. parishii Parish's yampah

• rare native
Perennial herb

2009 Thomas Stoughton

Perideridia pringlei Adobe yampah

• rare native
Perennial herb

2023 Mike Russler

Perityle emoryi Emory's rock daisy, Emory's rockdaisy

native
Annual herb

2023 Keir Morse

2019 Susan McDougall

2019 Ron Vanderhoff

Perityle inyoensis Inyo rock daisy, Inyo rockdaisy

• rare native
Perennial herb, Shrub

2018 Matt Berger

2011 Steve Matson

Perityle megalocephala var. megalocephala Large headed rock daisy, Nevada rockdaisy

native
Shrub

Perityle megalocephala var. megalocephala

2016 Steve Matson

2011 Steve Matson

Perityle megalocephala var. oligophylla Small leaved rockdaisy, Straight leaf rock daisy

native
Shrub

2019 Matt Berger

2020 Matt Berger

2019 Matt Berger

Perityle microglossa Shortray rockdaisy

non-native
Perennial herb

Perityle villosa Hanaupah rock daisy, Hanaupah rockdaisy

• rare native
Perennial herb

2019 Matt Berger

Persea americana Avocado

non-native
Tree

2018 Ron Vanderhoff

2005 Joseph Dougherty/ecology.org

Persicaria amphibia Water smartweed

native
Perennial herb (aquatic)

2017 Ron Vanderhoff

2019 Diane Etchison

Persicaria amphibia var. stipulacea Water smartweed

native
Perennial herb (aquatic)

2017 Ron Vanderhoff

2019 Diane Etchison

Persicaria coccinea Water smartweed

native
Perennial herb (aquatic)

2017 Ron Vanderhoff

2019 Diane Etchison

Polygonum amphibium Water smartweed

native
Perennial herb (aquatic)

2017 Ron Vanderhoff

2019 Diane Etchison

Polygonum amphibium var. stipulaceum Water smartweed

native
Perennial herb (aquatic)

2017 Ron Vanderhoff

2019 Diane Etchison

Polygonum coccineum Water smartweed

native
Perennial herb (aquatic)

2017 Ron Vanderhoff

2019 Diane Etchison

Polygonum hydropiper Common smartweed

non-native
Annual herb

2009 Gerald Carr

Persicaria hydropiperoides Water pepper

native
Perennial herb

2017 Ron Vanderhoff

2021 Ken Hickman

2021 John Rawlings

Polygonum hydropiperoides Water pepper

native
Perennial herb

2017 Ron Vanderhoff

2021 Ken Hickman

2021 John Rawlings

Persicaria lapathifolia Common knotweed

native
Annual herb

2020 Ron Vanderhoff

2017 Ron Vanderhoff

2020 Ron Vanderhoff

Polygonum lapathifolium Common knotweed

native
Annual herb

2020 Ron Vanderhoff

2017 Ron Vanderhoff

2020 Ron Vanderhoff

Persicaria maculosa Spotted ladysthumb

non-native
Annual herb

2020 R.A. Chasey

2021 joaquin hale

Polygonum persicaria Spotted ladysthumb

non-native
Annual herb

2020 R.A. Chasey

2021 joaquin hale

Polygonum orientale Kiss me over the garden gate

non-native
Annual herb

2010 Jean Pawek

Persicaria pensylvanica Pinkweed

non-native
Annual herb

2021 Donald Burk

2003 George W. Hartwell

Polygonum pensylvanicum Pinkweed

non-native
Annual herb

2021 Donald Burk

2003 George W. Hartwell

Persicaria punctata Dotted smartweed

native
Perennial herb

2018 Ron Vanderhoff

2022 Helen Hancock

Persicaria wallichii Himalayan knotweed

• invasive non-native
Perennial herb

2017 Redwood Community Action Agency

2019 David Juliano

2014 Ramona Robison

Petalonyx linearis Long leaved sandpaper plant, Narrow leaf sandpaper plant, Narrowleaf sandpaper plant

• rare native
Shrub

2016 Fred Melgert

Petalonyx nitidus Shiny leaf sandpaper plant, Shinyleaf sandpaper plant, sand paper plant

native
Perennial herb

2023 Dana York

2023 Duncan Bell

Petalonyx thurberi Sandpaper plant, Thurber's sandpaper plant

native
Perennial herb

2022 Steve Matson

Petalonyx thurberi ssp. gilmanii Death valley sandpaper plant

• rare native
Shrub

2022 Matt Berger

Petalonyx thurberi ssp. thurberi Thurber's sandpaper plant

native
Perennial herb

2017 Ron Vanderhoff

2022 Matt Berger

2021 Keir Morse

Petasites albus White butterbur

non-native
Perennial herb

2006 Louis-M. Landry

2007 Louis-M. Landry

Petasites fragrans Winter heliotrope

non-native
Perennial herb

2011 Michael Perlmutter

Petasites frigidus Arctic sweet coltsfoot

native
Perennial herb

2020 Trevor Schalla

2018 Saskia Raether

2021 Chuck Kozak

Petasites frigidus var. sagitatus Arctic sweet coltsfoot

native
Perennial herb

2020 Trevor Schalla

2018 Saskia Raether

2021 Chuck Kozak

Petasites frigidus var. palmatus Arctic sweet coltsfoot, Western coltsfoot

native
Perennial herb

2016 Steve Matson

2019 Steve Conger

Peteria thompsoniae Spine noded milk vetch, Thompson's peteria

• rare native
Perennial herb

2013 Steve Matson

Petradoria pumila ssp. pumila Grassy rockgoldenrod, Rock goldenrod

• rare native
Perennial herb

2010 Aaron Schusteff

2005 James M. Andre

Petradoria pumila var. pumila Rock-goldenrod

native
Perennial herb

2005 James M. Andre

Petrophytum caespitosum Mat rockspirea

native
Shrub

2015 Steve Matson

Petrophytum caespitosum ssp. acuminatum Marble rockmat

• rare native
Shrub

2012 Gary A. Monroe

Petrophytum caespitosum ssp. caespitosum Rock spiraea

native
Shrub

Petrophytum caespitosum ssp. caespitosum

2019 Maria Jesus

2019 Matt Berger

Petrorhagia dubia Hairypink, Pink grass, Wilding pink

non-native
Annual herb

2016 Bill Thiessen

2019 Joe Engelbrecht

2016 Andrew Longman

Petrorhagia velutina Hairypink, Pink grass, Wilding pink

non-native
Annual herb

2016 Bill Thiessen

2019 Joe Engelbrecht

2016 Andrew Longman

Petrorhagia nanteuilii Proliferous pink, Tubercle seeded pink grass

non-native
Annual herb

2005 George W. Hartwell

2007 Neal Kramer

Petrorhagia prolifera Childing pink, Pink grass

non-native
Annual herb

2021 Larry Dizmang

2023 Mike Russler

2021 Larry Dizmang

Petroselinum crispum Parsley

non-native
Perennial herb

2010 Michael O'Brien

2008 Louis-M. Landry

2005 Luigi Rignanese

Petunia axillaris Large white petunia

non-native
Annual, Perennial herb

2007 Zoya Akulova

2013 Zoya Akulova

Petunia integrifolia Violetflower petunia

non-native
Annual, Perennial herb

Petunia parviflora Wild petunia

native
Annual herb

2017 Ron Vanderhoff

2020 Ron Vanderhoff

2022 Ron Vanderhoff

Peucephyllum schottii Desert fir, Desert pine, Pigmycedar

native
Shrub

2020 Matt Berger

2016 Alison Sheehey

2010 Steve Matson

Phacelia adenophora Glandular yellow phacelia

native
Annual herb

2008 Neal Kramer

2018 John Doyen

2009 Gary A. Monroe

Phacelia affinis Limestone phacelia, Purple bell phacelia

native
Annual herb

2023 Martin Schenker

2005 James M. Andre

2015 Keir Morse

Phacelia anelsonii Aven nelson's phacelia

• rare native
Annual herb

2008 Steve Matson

2009 Steve Matson

2008 Steve Matson

Phacelia argentea Sand dune phacelia, Sanddune phacelia

• rare native
Perennial herb

2012 Genevieve K. Walden Using these photos: A variety of organization

2009 Genevieve K. Walden

2008 Genevieve K. Walden

Phacelia austromontana Southern sierra phacelia

native
Annual herb

2019 Steve Matson

Phacelia barnebyana Barneby's phacelia

• rare native
Annual herb

2023 Steve Matson

Phacelia bicolor Twocolor phacelia

native
Annual herb

2022 Steve Matson

2005 Steve Matson

2022 Steve Matson

Phacelia bicolor var. bicolor Twocolor phacelia

native
Annual herb

2022 Steve Matson

2005 Steve Matson

2022 Steve Matson

Phacelia bolanderi Bolander's phacelia, Redwood phacelia

native
Perennial herb

2021 Don Hollander

2017 Peter Warner

2009 Zoya Akulova

Phacelia brachyloba Short lobed phacelia, Shortlobe phacelia

native
Annual herb

2018 Ron Vanderhoff

2019 Ron Vanderhoff

Phacelia breweri Brewer's phacelia

native
Annual herb

2021 Helen Hancock

2022 Helen Hancock

Phacelia californica California phacelia, Phacelia, Rock phacelia

native
Perennial herb

2017 James Gonsman

2022 Christine Kelly

2020 R.A. Chasey

Phacelia calthifolia Caltha leafed phacelia, Calthaleaf phacelia

native
Annual herb

2005 Steve Matson

2016 Steve Matson

Phacelia campanularia Desert bells, Desert bluebells, Desertbells

native
Annual herb

2020 David Greenberger

2023 Ron Vanderhoff

2021 Colin Barrows

Phacelia campanularia var. campanularia Desert bells

native
Annual herb

2020 Benjamin Gould

2021 Mike Russler

Phacelia campanularia ssp. vasiformis Desert bluebells

native
Annual herb

2008 Steve Matson

Phacelia campanularia var. vasiformis Desert bluebells

native
Annual herb

2008 Steve Matson

Phacelia cicutaria Caterpillar phacelia

native
Annual herb

2019 Ron Vanderhoff

2016 Julie Watson

2014 Diane Etchison

Phacelia cicutaria var. cicutaria Caterpillar phacelia

native
Annual herb

2021 Steve Matson

Phacelia cicutaria var. hispida Caterpillar phacelia

native
Annual herb

2017 Steve Matson

Phacelia ciliata Great valley phacelia

native
Annual herb

2022 Ron Vanderhoff

2022 Mike Russler

2022 Catherine Chang

Phacelia ciliata var. ciliata Great valley phacelia

native
Annual herb

2022 Ron Vanderhoff

2017 Ron Vanderhoff

Phacelia coerulea Sky blue phacelia

• rare native
Annual herb

2008 Steve Matson

2004 James M. Andre

Phacelia congdonii Congdon's phacelia

native
Annual herb

2014 Steve Matson

Phacelia cookei Cooke's phacelia

• rare native
Annual herb

2020 Steve Laymon

2022 Steve Matson

2022 Julie A. Kierstead

Phacelia corymbosa Serpentine phacelia

native
Perennial herb

2021 R.A. Chasey

2017 David popp

2021 R.A. Chasey

Phacelia crenulata Cleftleaf wildheliotrope, Heliotrope phacelia, Notch leaved phacelia

native
Annual herb

2010 Steve Matson

2022 Steve Matson

2010 Steve Matson

Phacelia crenulata var. corrugata Cleftleaf wildheliotrope, Heliotrope phacelia, Notch leaved phacelia

native
Annual herb

2010 Steve Matson

2022 Steve Matson

2010 Steve Matson

Phacelia crenulata var. ambigua Heliotrope phacelia, Notch leaved phacelia, Purplestem phacelia

native
Annual herb

2016 Steve Matson

2008 Steve Matson

Phacelia crenulata var. crenulata Cleftleaf wildheliotrope, Heliotrope phacelia

native
Annual herb

2010 Steve Matson

Phacelia crenulata var. minutiflora Cleftleaf wildheliotrope, Little flowered heliotrope phacelia

native
Annual herb

2020 Matt Berger

2023 Julia Markey

2010 Neal Kramer

Phacelia cryptantha Hiddenflower phacelia, Limestone phacelia, Small flowered phacelia

native
Annual herb

2015 Steve Matson

2020 David Greenberger

2015 Steve Matson

Phacelia curvipes Washoe phacelia

native
Annual herb

2019 Diane Etchison

2010 Steve Matson

2022 Steve Matson

Phacelia davidsonii Davidson's phacelia

native
Annual herb

2017 Liz Gaspar

2012 Ron Vanderhoff

2017 Liz Gaspar

Phacelia distans Common phacelia, Distant phacelia, Wild heliotrope

native
Annual herb

2014 Steve Matson

2022 Ron Vanderhoff

Phacelia distans var. australis Common phacelia, Distant phacelia, Wild heliotrope

native
Annual herb

2014 Steve Matson

2022 Ron Vanderhoff

Phacelia divaricata Divaricate phacelia

native
Annual herb

2022 Mike Russler

2019 Ken Hickman

2022 R.A. Chasey

Phacelia douglasii Douglas' phacelia

native
Annual herb

2019 Michael Mitchell

2014 Michael Mitchell

2019 Michael Mitchell

Phacelia douglasii var. petrophila Douglas' phacelia, Rockloving phacelia

native
Annual herb

2020 David Greenberger

2021 R.A. Chasey

Phacelia egena Kaweah river phacelia, Rock phacelia

native
Perennial herb

2016 Steve Matson

Phacelia eisenii Eisen's phacelia

native
Annual herb

2008 Steve Matson

2022 R.A. Chasey

2008 Steve Matson

Phacelia eisenii var. brandegeeana Eisen's phacelia

native
Annual herb

2008 Steve Matson

2022 R.A. Chasey

2008 Steve Matson

Phacelia exilis Transverse range phacelia

• rare native
Annual herb

2019 Matt Berger

2020 Jacob Smith

Phacelia floribunda Many flowered phacelia, Southern island phacelia

• rare native
Annual herb

2014 Dylan Neubauer

2011 Neal Kramer

2008 Kim M. Klementowski

Phacelia fremontii Fremont's phacelia

native
Annual herb

2022 Steve Matson

2022 Mike Russler

2014 Steve Conger

Phacelia glandulifera Sticky phacelia

native
Annual herb

2011 Steve Matson

Phacelia grandiflora Giant flowered phacelia, Large flowered phacelia, Largeflower phacelia

native
Annual herb

2014 Ron Vanderhoff

2019 Ron Vanderhoff

Phacelia greenei Scott valley phacelia

• rare native
Annual herb

2011 Steve Matson

Phacelia grisea Grey phacelia, Santa lucia phacelia

native
Annual herb

2022 Irene Rosen

Phacelia gymnoclada Naked stem phacelia, Nakedstem phacelia

• rare native
Annual herb

2019 Steve Matson

Phacelia hastata Mountain phacelia, Silverleaf phacelia, Timberline phacelia

native
Perennial herb

2007 Steve Matson

2012 Steve Matson

Phacelia hastata ssp. compacta Timberline phacelia

native
Perennial herb

2007 Steve Matson

2012 Steve Matson

Phacelia hastata var. compacta Timberline phacelia

native
Perennial herb

2007 Steve Matson

2012 Steve Matson

Phacelia hastata ssp. hastata Mountain phacelia

native
Perennial herb

2021 R.A. Chasey

2013 James Gonsman

2022 Arlee Montalvo

Phacelia hastata var. hastata Mountain phacelia

native
Perennial herb

2021 R.A. Chasey

2013 James Gonsman

2022 Arlee Montalvo

Phacelia heterophylla Varileaf phacelia

native
Perennial herb

2006 Steve Matson

Phacelia heterophylla var. heterophylla Varileaf phacelia

native
Perennial herb

2006 Steve Matson

Phacelia heterophylla ssp. virgata Varied leaf phacelia

native
Perennial herb

2006 Steve Matson

Phacelia heterophylla var. virgata Varied leaf phacelia

native
Perennial herb

2006 Steve Matson

Phacelia hubbyi Hubby's phacelia

• rare native
Annual herb

2017 Diane Etchison

2009 Ron Vanderhoff

2017 Robert A. Hamilton

Phacelia humilis Low phacelia

native
Annual herb

2004 Steve Matson

Phacelia humilis var. humilis Low phacelia

native
Annual herb

2004 Steve Matson

Phacelia hydrophylloides Water leaf phacelia, Waterleaf phacelia

native
Perennial herb

2004 Steve Matson

Phacelia imbricata Imbricate phacelia

native
Perennial herb

2019 Steve Matson

Phacelia imbricata var. bernardina Bernadina Phacelia

native
Annual herb

2022 R.A. Chasey

Phacelia imbricata ssp. imbricata Imbricate Phacelia

native
Annual herb

2019 Steve Matson

Phacelia imbricata var. imbricata Imbricate Phacelia

native
Annual herb

2019 Steve Matson

Phacelia imbricata var. patula Imbricate phacelia

native
Perennial herb

2020 Bob Sill

2019 Bonnie Nickel

2019 Matt Berger

Phacelia insularis Coast phacelia, Santa rosa island phacelia

native
Annual herb

2022 R.A. Chasey

2010 Gary A. Monroe

Phacelia insularis ssp. continentalis Coast phacelia, Santa rosa island phacelia

native
Annual herb

2022 R.A. Chasey

2010 Gary A. Monroe

Phacelia insularis var. continentis North coast phacelia

• rare native
Annual herb

2022 R.A. Chasey

2023 Scott Yarger

2022 R.A. Chasey

Phacelia insularis var. insularis Island phacelia, Northern channel islands phacelia

• rare native
Annual herb

2006 Steve Matson

Phacelia inundata Playa phacelia, Playa yellow phacelia

• rare native
Annual herb

2008 F. Gauna

Phacelia inyoensis Inyo phacelia

• rare native
Annual herb

2019 Matt Berger

2020 Steve Matson

Phacelia ivesiana Ives' phacelia

native
Annual herb

2017 Fred Melgert / Carla Hoegen

Phacelia keckii Santiago peak phacelia

• rare native
Annual herb

2019 Ron Vanderhoff

Phacelia lemmonii Lemmon's phacelia

native
Annual herb

2006 Aaron Schusteff

2014 John Game

Phacelia leonis Siskiyou phacelia

• rare native
Annual herb

2019 Steve Matson

Phacelia linearis Linear leaf phacelia, Narrow leafed phacelia, Thread leaf phacelia

native
Annual herb

2022 Alaine Arslan

2008 Steve Matson

2016 Ray Gill

Phacelia longipes Long stalk phacelia, Longstalk phacelia

native
Annual herb

Geoff Burleigh

2020 G Froelich

2018 Trevor Schalla

Phacelia lutea var. lutea Yellow phacelia

non-native
Perennial herb

Phacelia lyonii Lyon's phacelia

native
Annual herb

2017 B.J. Dion

Phacelia malvifolia Stinging phacelia

native
Annual herb

2018 Michael Mitchell

2022 Jennifer Mo

2013 Toni Corelli

Phacelia malvifolia var. malvifolia Stinging phacelia

native
Annual herb

2018 Michael Mitchell

2022 R.A. Chasey

Phacelia marcescens Marcescent phacelia, Persistentflower phacelia

native
Annual herb

2016 Steve Matson

2008 Steve Matson

Phacelia minor California bluebell, Wild canterbury bells

native
Annual herb

2020 David Greenberger

2019 Matt Berger

2020 stephen montgomery

Phacelia mohavensis Mojave phacelia

• rare native
Annual herb

2017 John L. Thompson

2019 Manzanita Dictionary

2005 Chris Wagner, SBNF

Phacelia monoensis Mono county phacelia, Mono phacelia

• rare native
Annual herb

2010 Steve Matson

Phacelia mustelina Death valley round leaved phacelia, Weasel phacelia

• rare native
Annual herb

2011 Steve Matson

2019 Matt Berger

Phacelia mutabilis Changeable phacelia

native
Perennial herb

2014 Steve Matson

Phacelia nashiana Charlotte's phacelia

• rare native
Annual herb

2016 Steve Matson

Phacelia neglecta Alkali phacelia

native
Annual herb

2010 Steve Matson

2010 John Game

2010 Steve Matson

Phacelia nemoralis Shade phacelia, Woods phacelia

native
Perennial herb

2020 Ken Hickman

2018 Jennifer Wheeler

2016 Bruce Homer-Smith

Phacelia nemoralis var. nemoralis Woods phacelia

native
Perennial herb

2020 Ken Hickman

2016 Glen Schneider

2021 Dianne Lake

Phacelia novenmillensis Nine mile canyon phacelia

• rare native
Annual herb

2019 Matt Berger

2023 Bob Steele

Phacelia orogenes Mountain phacelia

• rare native
Annual herb

2018 Mary Merriman

2017 Ashley Olive

2017 Chao Shi

Phacelia pachyphylla Blacktack phacelia, Thick leafed phacelia

native
Annual herb

2017 Ashley Olive

2014 Sonie Sampson

Phacelia parishii Parish's phacelia

• rare native
Annual herb

2006 James M. Andre

2004 Thomas M. Elder, M.D.

2023 Matt Berger

Phacelia parryi Parry's phacelia

native
Annual herb

2023 Ron Vanderhoff

2020 Ron Vanderhoff

2020 Diane Etchison

Phacelia pedicellata Pedicellate phacelia, Specter phacelia

native
Annual herb

2020 David Greenberger

2019 Matt Berger

2020 Matt Berger

Phacelia perityloides Panamint phacelia

native
Perennial herb

2020 Steve Matson

Phacelia perityloides var. jaegeri Jaeger's panamint phacelia

• rare native
Perennial herb

2020 Matt Berger

2010 James M. Andre

2012 Jean Pawek

Phacelia perityloides var. perityloides Panamint phacelia

native
Perennial herb

2023 Dana York

2005 Steve Matson

Phacelia phacelioides Mt. Diablo phacelia

• rare native
Annual herb

2019 Steve Matson

Phacelia platyloba Broad lobed phacelia, Broadlobe phacelia

native
Annual herb

2018 Jane Pritchard

2011 Barry Breckling

Phacelia pringlei Pringle's phacelia

native
Annual herb

2014 Steve Matson

2011 Steve Matson

Phacelia procera Tall phacelia

native
Perennial herb

2023 Alaine Arslan

2018 Julie Kierstead Nelson

2011 Dana York

Phacelia pulchella var. gooddingii Goodding's phacelia

• rare native
Annual herb

2015 Patrick Donnelly

Phacelia purpusii Purpus' phacelia

native
Annual herb

2022 Mike Russler

2019 Diane Etchison

2022 Mike Russler

Phacelia quickii Quick's phacelia

native
Annual herb

2015 Steve Matson

Phacelia racemosa Racemose phacelia

native
Annual herb

2021 Steve Laymon

2004 Steve Matson

2019 Chico Hiking Association

Phacelia ramosissima Branching phacelia

native
Perennial herb

2005 Steve Matson

2022 Rosalind Helfand

2020 Ron Vanderhoff

Phacelia rattanii Rattan's phacelia

native
Annual herb

2022 Dee Shea Himes

2020 Ken Hickman

Phacelia rotundifolia Round leafed phacelia, Roundleaf phacelia

native
Annual herb

2019 Matt Berger

2020 Steve Matson

Phacelia saxicola Rock phacelia, Stonecrop phacelia

native
Annual herb

2008 Steve Matson

2017 Steve Matson

Phacelia sericea Silky phacelia

native
Perennial herb

2019 Julie Kierstead Nelson

Phacelia sericea ssp. sericea Silky phacelia

native
Perennial herb

2019 Julie Kierstead Nelson

Phacelia sericea var. sericea Silky phacelia

native
Perennial herb

2019 Julie Kierstead Nelson

Phacelia sericea ssp. ciliosa Blue alpine phacelia

• rare native
Perennial herb

2019 Julie Kierstead Nelson

Phacelia sericea var. ciliosa Blue alpine phacelia

• rare native
Perennial herb

2019 Julie Kierstead Nelson

Phacelia stebbinsii Stebbins' phacelia, Stebbins's phacelia

• rare native
Annual herb

2019 Matt Berger

Phacelia stellaris Brand's phacelia, Star phacelia

• rare native
Annual herb

2012 Keir Morse

Phacelia suaveolens Sweet scented phacelia, Sweetscented phacelia

native
Annual herb

2019 Ken Hickman

2022 R.A. Chasey

2016 Cindy Roessler

Phacelia tanacetifolia Lacy phacelia, Tansy leafed phacelia

native
Annual herb

2022 Mike Russler

2024 Bob Steele

2022 Charles Russell

Phacelia thermalis Heat phacelia, Heated phacelia

native
Annual herb

2019 Amelia Ryan

2002 Dean Wm. Taylor

2019 Amelia Ryan

Phacelia vallicola Mariposa phacelia

native
Annual herb

2016 Steve Matson

Phacelia vallis-mortae Death valley phacelia

native
Annual herb

2019 Steve Matson

2011 Steve Matson

2010 Steve Matson

Phacelia vallis-mortae var. heliophila Death valley phacelia, Sunloving phacelia

native
Annual herb

2015 George Butterworth

2023 Ryan O'Dell

2024 Ryan O'Dell

Phacelia viscida Sticky phacelia, Tacky phacelia

native
Annual herb

2017 Steve Matson

Phacelia viscida var. albiflora Sticky phacelia, White phacelia

native
Annual herb

2017 John L. Thompson

2012 George Williams

Phacelia viscida var. viscida Sticky phacelia

native
Annual herb

2017 Gary Andrew

2017 Keir Morse

2019 Mary Conway

Phalacroseris bolanderi Bolander's mock dandelion

native
Perennial herb

2022 Mike Russler

Phalaris angusta Timothy canarygrass

native
Annual grass

2011 Steve Matson

Phalaris aquatica Bulbous canarygrass, Harding grass

• invasive non-native
Perennial grass

2018 Thomas Reyes

2021 Lenihan Mazur

2022 Lenihan Mazur

Phalaris arundinacea Reed canarygrass

native
Perennial grass

2018 Michelle Forys

2020 Donald Burk

2022 Dianne Lake

Phalaris brachystachys Short spike canarygrass, Shortspike canarygrass

non-native
Annual grass

2023 John Rawlings

2007 Luigi Rignanese

Phalaris californica California canarygrass, Canarygrass

native
Perennial grass

2021 Dan Quinn

2017 Toni Corelli

2018 Brian Charles

Phalaris canariensis Annual canarygrass

non-native
Annual grass

2008 Louis-M. Landry

2007 Luigi Rignanese

Phalaris lemmonii Lemmon's canarygrass

native
Annual grass

2017 James Bailey

2022 Donald Burk

2022 Steve Matson

Phalaris minor Little seed canarygrass, Littleseed canarygrass, Mediterranean canarygrass

non-native
Annual grass

2014 Steve Matson

Phalaris paradoxa Hood canarygrass

non-native
Annual grass

2021 David popp

2021 John Rawlings

2017 James Bailey

Phaseolus acutifolius Tepary bean

non-native
Annual herb

Phaseolus filiformis Slender stem bean, Slimjim bean

• rare native
Annual herb

2022 Joe DeWolf

2004 Debra Valov

2022 Joe DeWolf

Phaseolus vulgaris Kidney bean

non-native
Annual herb

2021 Ron Vanderhoff

Orobanche ramosa Yellow broom rape

non-native
Perennial herb (parasitic)

2001 CDFA

2006 Luigi Rignanese

2007 Luigi Rignanese

Phelipanche ramosa Yellow broom rape

• invasive non-native
Perennial herb (parasitic)

2001 CDFA

2006 Luigi Rignanese

2007 Luigi Rignanese

Philadelphus coronarius Sweet mock orange

non-native
Shrub

Philadelphus lewisii Lewis' mock orange, Mock orange, Wild mock orange

native
Shrub

2016 Steve Matson

2022 John Rawlings

Philadelphus microphyllus Desert syringa, Little leaf mock orange, Littleleaf mock orange

native
Shrub

2015 Steve Matson

Philonotis fontana Philonotis moss

native
Moss

2020 Martin Purdy

Phleum alpinum Alpine timothy, Mountain timothy, Timothy grass

native
Perennial grass

2003 Steve Matson

2022 Steve Matson

2021 R.A. Chasey

Phleum pratense Common timothy, Cultivated timothy, Timothy

non-native
Perennial grass

2013 BOB CASE

2019 Julie Kierstead Nelson

2021 Emily R. Allen

Phlomis fruticosa Shrubby jerusalem sage

non-native
Perennial herb

2017 Zoya Akulova

2016 Barbara Boethling

Phlox adsurgens Northern phlox

native
Perennial herb

2023 Mary Ann Machi

2019 Matt Berger

2021 Steve Conger

Phlox austromontana Southern mountain phlox

native
Perennial herb

Geoff Burleigh

Phlox caespitosa Tufted phlox

native
Perennial herb

2009 Debra Valov

2009 Barry Breckling

Phlox condensata Condensed phlox

native
Perennial herb

2020 Bob Sweatt

2021 Steve Matson

Phlox covillei Condensed phlox

native
Perennial herb

2020 Bob Sweatt

2021 Steve Matson

Phlox diffusa Spreading phlox

native
Perennial herb

2018 Saskia Raether

2019 Talila Golan

2009 Keir Morse

Phlox diffusa ssp. longistylis Spreading phlox

native
Perennial herb

2018 Saskia Raether

2019 Talila Golan

2009 Keir Morse

Phlox dispersa High sierra phlox

• rare native
Perennial herb

2020 Matt Berger

Phlox dolichantha Big bear valley phlox

• rare native
Perennial herb

2019 Matt Berger

Phlox douglasii Douglas' phlox

native
Perennial herb

1995 Saint Mary's College of California

Phlox hirsuta Hairy phlox, Yreka phlox

• rare native
Perennial herb

2024 Bob Mason

2022 Julie A. Kierstead

2019 Barbara Peck

Phlox hoodii Spiny phlox

native
Perennial herb

2006 Steve Matson

2016 Brett Dean

2006 Steve Matson

Phlox hoodii ssp. canescens Carpet phlox, Gray phlox, Hood's phlox

native
Perennial herb

2021 David popp

2024 Alaine Arslan

Phlox hoodii var. canescens Carpet phlox, Gray phlox, Hood's phlox

native
Perennial herb

2021 David popp

2024 Alaine Arslan

Phlox longifolia Longleaf phlox

native
Perennial herb

2005 Christopher L. Christie

2007 Trent M. Draper

Phlox longifolia ssp. longifolia Longleaf phlox

native
Perennial herb

2005 Christopher L. Christie

2007 Trent M. Draper

Phlox hoodii ssp. muscoides Moss phlox

• rare native
Perennial herb

2002 California Native Plant Society

2013 Justy Leppert

2023 Dana York

Phlox muscoides Moss phlox

• rare native
Perennial herb

2002 California Native Plant Society

2013 Justy Leppert

2023 Dana York

Phlox pulvinata Carpet phlox, Cushion phlox, Pulvinate phlox

native
Perennial herb

Gerald and Buff Corsi 2000 California Academy of Sciences

2007 Neal Kramer

Phlox speciosa Showy phlox

native
Perennial herb

2021 Dee Shea Himes

2020 Julie A. Kierstead

2020 David Self

Phlox speciosa ssp. occidentalis Showy phlox

native
Perennial herb

2021 Dee Shea Himes

2020 Julie A. Kierstead

2020 David Self

Phlox stansburyi Cold desert phlox

native
Perennial herb

2017 Jim Morefield

2014 Steve Matson

2019 Jim Morefield

Phlox stansburyi ssp. stansburyi Cold-desert phlox

native
Perennial herb

2019 Catherine Capone

2015 Richard Spellenberg

2013 James M. Andre

Phlox stansburyi ssp. superba Cold-desert phlox

native
Perennial herb

2017 Jim Morefield

Phoenicaulis cheiranthoides Common phoenicaulis, Dagger pod, Wallflower phoenicaulis

native
Perennial herb

2020 Bob Sweatt

2020 mark kircher

2019 Bob Sweatt

Phoenix canariensis Canary island date palm

• invasive non-native
Tree

2020 Ron Vanderhoff

2022 Ron Vanderhoff

2021 James Bailey

Phoenix dactylifera Date palm

non-native
Tree, Shrub

2022 Ramona Robison

2021 Ron Vanderhoff

Phoenix reclinata Senegal date palm

non-native
Tree, Shrub

Pholisma arenarium Desert christmas tree, Desert pholisma, Dune food

native
Perennial herb (parasitic)

LENNOACEAE

2015 Justin Luong

2018 Peri Lee

2019 Matt Berger

Pholisma sonorae Sand food, Sandfood

• rare native
Perennial herb (parasitic)

LENNOACEAE

2020 Joey Santore

2008 Jordan Zylstra

2008 Michael Charters

Pholistoma auritum Blue fiestaflower, Fiesta flower

native
Annual herb

2014 Steve Matson

Pholistoma auritum var. arizonicum Arizona fiestaflower, Arizona pholistoma

• rare native
Annual herb

2016 Fred Melgert

2017 Fred Melgert / Carla Hoegen

2016 Fred Melgert

Pholistoma auritum var. auritum Blue fiesta flower, Blue fiestaflower, Fiesta flower

native
Annual herb

2014 Steve Matson

Pholistoma membranaceum White fiesta flower, White fiestaflower

native
Annual herb

2005 Steve Matson

2016 Steve Matson

Pholistoma racemosum Racemed fiestaflower, San Diego fiesta flower, San Diego fiestaflower

native
Annual herb

2019 Ron Vanderhoff

2017 James Bailey

Phoradendron bolleanum Bollean mistletoe

native
Shrub (parasitic)

2014 Steve Matson

2019 Aaron Echols

Phoradendron densum Bollean mistletoe

native
Shrub (parasitic)

2014 Steve Matson

2019 Aaron Echols

Phoradendron pauciflorum Bollean mistletoe

native
Shrub (parasitic)

2014 Steve Matson

2019 Aaron Echols

Phoradendron californicum California mesquite mistletoe, Desert mistletoe, Mesquite mistletoe

native
Shrub (parasitic)

2015 Jesse Rorabaugh

2021 Ron Vanderhoff

2016 Diane Etchison

Phoradendron juniperinum Juniper mistletoe

native
Shrub (parasitic)

2016 Keir Morse

2020 R.A. Chasey

2004 James M. Andre

Phoradendron libocedri Juniper mistletoe

native
Shrub (parasitic)

2016 Keir Morse

2020 R.A. Chasey

2004 James M. Andre

Phoradendron flavescens American mistletoe

native
Shrub (parasitic)

2020 Bryant Baker

2021 R.A. Chasey

Phoradendron leucarpum American mistletoe

native
Shrub (parasitic)

2020 Bryant Baker

2021 R.A. Chasey

Phoradendron leucarpum ssp. macrophyllum Big leaf mistletoe

native
Shrub (parasitic)

Phoradendron leucarpum ssp. macrophyllum

2021 Ron Vanderhoff

Phoradendron macrophyllum Big leaf mistletoe

native
Shrub (parasitic)

2021 Ron Vanderhoff

Phoradendron serotinum ssp. macrophyllum Big leaf mistletoe

native
Shrub (parasitic)

Phoradendron serotinum ssp. macrophyllum

2021 Ron Vanderhoff

Phoradendron tomentosum Big leaf mistletoe

native
Shrub (parasitic)

2021 Ron Vanderhoff

Phoradendron leucarpum ssp. tomentosum Mistletoe

native
Shrub (parasitic)

2022 David popp

2020 R.A. Chasey

2021 R.A. Chasey

Phoradendron villosum Mistletoe

native
Shrub (parasitic)

2022 David popp

2020 R.A. Chasey

2021 R.A. Chasey

Phoradendron villosum ssp. coryae Mistletoe

native
Shrub (parasitic)

2022 David popp

2020 R.A. Chasey

2021 R.A. Chasey

Photinia davidsoniae

non-native
Shrub, Tree

Photinia serrulata Taiwanese photinia

non-native
Shrub, Tree

2015 Kate Symonds

2020 Elliot Gunnison

2013 Dean Kelch

Photinia fraseri Fraser's photinia

non-native
Shrub, Tree

2023 Ron Vanderhoff

Phragmites australis Common reed

native
Perennial grass

2013 Ron Vanderhoff

2020 Ron Vanderhoff

2022 Steve Matson

Phryma leptostachya American lopseed

non-native
Perennial herb

2006 Jeff Abbas

Phyla cuneifolia Wedgeleaf

native
Perennial herb

2017 Trent M. Draper

Phyla lanceolata Lance leaf lippia, Lanceleaf fogfruit

native
Perennial herb

2014 D Hufnagel

2021 Randy Huey

2015 Zoya Akulova

Phyla nodiflora Common lippia, Lippia, Turkey tangle frogfruit

native
Perennial herb

2018 Ron Vanderhoff

2009 Ron Vanderhoff

2022 Donald Burk

Phyllodoce breweri Brewer's mountain heather, Purple mountain heath

native
Shrub

2013 James Gonsman

2021 Mike Russler

2020 Bob Sweatt

Phyllodoce empetriformis Klamath mountain heather, Pink mountainheath

native
Shrub

2020 Melissa Harbert

2020 Richard Spjut

Phyllospadix scouleri Scouler's surfgrass, Surf grass

native
Perennial herb

ZOSTERACEAE

2010 Avis Boutell

2019 Patrick Furtado

Phyllospadix torreyi Surf grass, Torrey's surfgrass

native
Perennial herb

ZOSTERACEAE

2018 Ron Vanderhoff

2022 Ron Vanderhoff

Phyllostachys aurea Golden bamboo

non-native
Vine

2019 Lenihan Mazur

2022 Donald Burk

2021 Jennifer Mo

Nicotiana trigonophylla Sharp leaf ground cherry, Sharpleaf groundcherry

native
Annual herb

2016 Douglas Gordon-Blackwood

2009 Neal Kramer

2019 David popp

Physalis acutifolia Sharp leaf ground cherry, Sharpleaf groundcherry

native
Annual herb

2016 Douglas Gordon-Blackwood

2009 Neal Kramer

2019 David popp

Physalis angulata Cutleaf groundcherry

native
Annual herb

2015 Barry Breckling

2008 John Dittes

Physalis crassifolia Thick leaved ground cherry, Yellow nightshade ground cherry, Yellow nightshade groundcherry

native
Annual, Perennial herb

2006 Steve Matson

2015 Steve Matson

Physalis crassifolia var. infundibularis Thick leaved ground cherry, Yellow nightshade ground cherry, Yellow nightshade groundcherry

native
Annual, Perennial herb

Physalis crassifolia var. infundibularis

2006 Steve Matson

2015 Steve Matson

Physalis hederifolia Ivy leafed tomatillo, Ivy leaved ground cherry, Ivyleaf groundcherry

native
Perennial herb

2020 Ron Vanderhoff

Physalis hederifolia var. cordifolia Fendler's groundcherry, Fendler's ivy leaf tomatillo

native
Perennial herb

2016 Keir Morse

2005 James M. Andre

2004 Robert Sivinski

Physalis hederifolia var. fendleri Fendler's groundcherry, Fendler's ivy leaf tomatillo

native
Perennial herb

2016 Keir Morse

2005 James M. Andre

2004 Robert Sivinski

Physalis hederifolia var. palmeri Palmer's ground cherry, Palmer's groundcherry

native
Perennial herb

2020 Ron Vanderhoff

2022 Ron Vanderhoff

Physalis lanceifolia Narrow leaf tomatillo

non-native
Annual herb

2021 Ramona Robison

2019 Angelique Herman

Physalis lancifolia Narrow leaf tomatillo

non-native
Annual herb

2021 Ramona Robison

2019 Angelique Herman

Physalis lobata Lobed ground cherry

• rare native
Perennial herb

2008 Steve Matson

Quincula lobata Lobed ground cherry

• rare native
Perennial herb

2008 Steve Matson

Physalis peruviana Peruvian groundcherry

non-native
Perennial herb

2006 Louis-M. Landry

Physalis philadelphica Mexican groundcherry, Tomatillo

non-native
Annual herb

2020 Alice Cummings

2022 Donald Burk

2020 Alice Cummings

Physalis philadelphica var. immaculata Mexican groundcherry

non-native
Annual herb

2011 Louis-M. Landry

Physalis pubescens Husk tomato

non-native
Perennial herb

2014 Steven Harris

Physalis pubescens var. grisea Gray ground cherry

non-native
Annual herb

2014 Steven Harris

Physalis pubescens var. integrifolia Hairy ground cherry, Husk tomato

non-native
Perennial herb

2011 Louis-M. Landry

Physalis cinerascens Grape ground cherry

• invasive non-native
Perennial herb

2007 Zoya Akulova

Physalis cinerascens var. cinerascens Grape ground cherry

• invasive non-native
Perennial herb

2007 Zoya Akulova

Physalis viscosa Grape ground cherry

• invasive non-native
Perennial herb

2007 Zoya Akulova

Physaria chambersii Chambers' twinpod, Double bladderpod

• rare native
Perennial herb

2006 Trent M. Draper

2010 Mary Winter

2014 Zoya Akulova

Physaria kingii King's bladderpod

native
Perennial herb

Geoff Burleigh

2020 Jacob Smith

2019 David Greenberger

Physaria kingii var. latifolia King's bladderpod

native
Perennial herb

Geoff Burleigh

2020 Jacob Smith

2019 David Greenberger

Physaria kingii ssp. bernardina San bernardino mountains bladderpod

• rare native
Perennial herb

Geoff Burleigh

2009 Thomas Stoughton

Physaria kingii ssp. kingii King's bladderpod

native
Perennial herb

2019 David Greenberger

2020 Jacob Smith

2016 John Doyen

Physaria kingii ssp. latifolia Limestone bladderpod

native
Perennial herb

2010 James M. Andre

2004 James M. Andre

Physaria ludoviciana Silver bladderpod

• rare native
Perennial herb

2016 Steve Matson

Physaria occidentalis Western bladderpod

native
Perennial herb

2011 Steve Matson

2017 Steve Matson

Physaria occidentalis ssp. occidentalis Western bladder pod

native
Perennial herb

2011 Steve Matson

2017 Steve Matson

Lesquerella tenella Little bladderpod

native
Annual herb

2023 David Strauch

Physaria tenella Little bladderpod

native
Annual herb

2023 David Strauch

Physocarpus alternans Dwarf ninebark, Nevada ninebark

• rare native
Shrub

2011 Steve Matson

2019 Matt Berger

Physocarpus capitatus Ninebark, Pacific ninebark, Western ninebark

native
Shrub

2019 Steve Matson

Phytolacca americana American pokeweed, Pokeberry

• invasive non-native
Perennial herb

2009 Julie A. Kierstead

2021 Donald Burk

2022 Donald Burk

Phytolacca americana var. americana American pokeweed

non-native
Perennial herb

2013 Jean Pawek

2022 Donald Burk

2013 Jean Pawek

Phytolacca heterotepala Mexican pokeweed, Pokeberry

non-native
Perennial herb

2017 Ron Vanderhoff

Phytolacca icosandra Tropical pokeweed

non-native
Perennial herb

2020 Ron Vanderhoff

2022 Brad Cook

Picea abies Norway spruce

non-native
Tree

2006 Dr. Amadej Trnkoczy

Picea breweriana Brewer spruce, Weeping spruce

native
Tree

2022 Dana York

2019 Matt Berger

Picea engelmannii Engelmann spruce

• rare native
Tree

2000 John Game

2004 Robert Sivinski

2003 Joseph Dougherty/ecology.org

Picea pungens Blue spruce

non-native
Tree

2003 Joseph Dougherty/ecology.org

2010 Lee Dittmann

Picea sitchensis Sitka spruce

native
Tree

2018 Richard Spjut

2022 R.A. Chasey

2021 Julie A. Kierstead

Pickeringia montana Montana chaparral pea

native
Shrub

2019 Stacie Wolny

2018 Eliezer Margolis

Pickeringia montana var. montana Montana chaparral pea

native
Shrub

2022 Ron Vanderhoff

Pickeringia montana var. tomentosa Montana chaparral pea

• rare native
Shrub

2016 Ron Vanderhoff

2019 Richard Spjut

2021 Ron Vanderhoff

Schkuhria multiflora Many flowered bahia

• rare native
Annual herb

2011 Keir Morse

Schkuhria multiflora var. multiflora Many flowered bahia

• rare native
Annual herb

2011 Keir Morse

Pieris japonica Japanese pieris

non-native
Shrub

Pilea microphylla Rockweed

non-native
Annual, Perennial herb

Pilostyles thurberi Thurber's pilostyles, Thurber's stemsucker

• rare native
Perennial herb (parasitic)

APODANTHACEAE

2018 Fred Melgert / Carla Hoegen

2016 Fred Melgert

2018 Fred Melgert / Carla Hoegen

Pilularia americana American pillwort

native
Fern

2017 Ron Vanderhoff

2022 Matt Berger

Pinguicula macroceras California butterwort

• rare native
Perennial herb (carnivorous)

2017 John Game

2017 Steve Matson

2018 John Game

Pinguicula macroceras ssp. macroceras California butterwort

• rare native
Perennial herb (carnivorous)

2017 John Game

2017 Steve Matson

2018 John Game

Pinguicula vulgaris ssp. macroceras California butterwort

• rare native
Perennial herb (carnivorous)

2017 John Game

2017 Steve Matson

2018 John Game

Pinus albicaulis Alpine white pine, Dwarf pine, Whitebark pine

native
Tree

2006 Keir Morse

2022 Dana York

2021 Mike Russler

Pinus attenuata Knobcone pine, Scrub pine

native
Tree

2009 Ron Vanderhoff

2018 Hayley Ross

2019 Cynthia Powell

Pinus balfouriana Foxtail pine

native
Tree

2022 richard mcneill

2020 Matt Berger

2022 richard mcneill

Pinus balfouriana ssp. austrina Balfour pine, Sierra foxtail pine

native
Tree

2018 Matt Berger

2021 Mike Russler

Pinus balfouriana ssp. balfouriana Klamath foxtail pine

native
Tree

2021 Glenn Fine

2022 Dana York

2015 Julie A. Kierstead

Pinus brutia var. eldarica Afghan pine

non-native
Tree

Pinus canariensis Canary island pine

non-native
Tree

2018 Ron Vanderhoff

2023 Julia Markey

Pinus contorta Beach pine, Lodgepole pine

native
Tree

2019 Jay Chamberlain

2018 Tricia Bippus

2023 Cynthia Powell

Pinus contorta ssp. latifolia Beach pine, Lodgepole pine

native
Tree

2019 Jay Chamberlain

2018 Tricia Bippus

2023 Cynthia Powell

Pinus contorta ssp. bolanderi Bolander pine, Bolander's beach pine

• rare native
Tree

2019 Susan McDougall

2022 R.A. Chasey

Pinus contorta var. bolanderi Bolander pine, Bolander's beach pine

• rare native
Tree

2019 Susan McDougall

2022 R.A. Chasey

Pinus contorta ssp. contorta Shore pine

native
Tree

2019 Wyatt Dooley

2022 R.A. Chasey

Pinus contorta ssp. murrayana Lodgepole pine, Tamarack

native
Tree

2022 Arlee Montalvo

2021 Mike Russler

Pinus contorta var. murrayana Lodgepole pine, Tamarack

native
Tree

2022 Arlee Montalvo

2021 Mike Russler

Pinus coulteri Big cone pine, Bull pine, Coulter pine

native
Tree

2015 Michelle Cloud Hughes

2019 Bryant Baker

2020 Diane Etchison

Pinus cembroides Two needle pinyon pine, Twoneedle pinyon

• rare native
Tree

2020 David Greenberger

2010 Lee Dittmann

2009 Lee Dittmann

Pinus cembroides var. cembroides Two needle pinyon pine, Twoneedle pinyon

• rare native
Tree

2020 David Greenberger

2010 Lee Dittmann

2009 Lee Dittmann

Pinus edulis Two needle pinyon pine, Twoneedle pinyon

• rare native
Tree

2020 David Greenberger

2010 Lee Dittmann

2009 Lee Dittmann

Pinus eldarica Afghan pine

non-native
Tree

2021 Ron Vanderhoff

2020 Ron Vanderhoff

2019 Ron Vanderhoff

Pinus elliottii Slash pine

non-native
Tree

Lorraine Elrod2007 California Academy of Sciences

Pinus flexilis Limber pine, White pine

native
Tree

2023 Bryant Baker

Pinus halepensis Aleppo pine

non-native
Tree

2020 Ron Vanderhoff

2019 Ron Vanderhoff

2023 Ron Vanderhoff

Pinus jeffreyi Jeffrey pine

native
Tree

2019 Susan McDougall

2016 Dave Brandt

2016 Jim Moore

Pinus lambertiana Sugar pine

native
Tree

2021 R.A. Chasey

2020 Susan McDougall

2021 David popp

Pinus aristata Great basin bristlecone pine, Hickory pine

• rare native
Tree

2020 Ofer Dub

2019 Matt Berger

2023 Barbara B Renshaw

Pinus longaeva Great basin bristlecone pine, Hickory pine

• rare native
Tree

2020 Ofer Dub

2019 Matt Berger

2023 Barbara B Renshaw

Pinus monophylla Nut pine, Oneneedle pinyon pine, Single leaf pinyon pine

native
Tree

2019 Annie Walker

2019 Matt Berger

2018 Diane Etchison

Pinus monophylla ssp. californiarum Nut pine, Oneneedle pinyon pine, Single leaf pinyon pine

native
Tree

2019 Annie Walker

2019 Matt Berger

2018 Diane Etchison

Pinus monophylla ssp. fallax Nut pine, Oneneedle pinyon pine, Single leaf pinyon pine

native
Tree

2019 Annie Walker

2019 Matt Berger

2018 Diane Etchison

Pinus monophylla var. californiarum Nut pine, Oneneedle pinyon pine, Single leaf pinyon pine

native
Tree

2019 Annie Walker

2019 Matt Berger

2018 Diane Etchison

Pinus monticola Mountain pine, Western white pine

native
Tree

2019 Saskia Raether

2020 David popp

2021 Christopher Collier

Pinus mugo Mugo pine

non-native
Tree

Pinus muricata Bishop pine, Bull pine, Prickle cone pine

native
Tree

2012 Michael Mitchell

2023 Karen Swift

Pinus nigra Austrian pine

non-native
Tree

2006 Luigi Rignanese

2007 Louis-M. Landry

2005 Dr. Amadej Trnkoczy

Pinus patula Mexican weeping pine

non-native
Tree

2023 John Malpas

Pinus pinaster Maritime pine

non-native
Tree

Pinus pinea Italian stone pine

non-native
Tree

2018 Michael Mitchell

2020 Diana Wahl

2015 Chris Jaster

Pinus ponderosa Ponderosa pine, Western yellow pine

native
Tree

2021 David popp

2019 David popp

2022 Cynthia Powell

Pinus ponderosa ssp. ponderosa Ponderosa pine, Western yellow pine

native
Tree

2021 David popp

2019 David popp

2022 Cynthia Powell

Pinus ponderosa var. arizonica Ponderosa pine, Western yellow pine

native
Tree

2021 David popp

2019 David popp

2022 Cynthia Powell

Pinus ponderosa var. scopulorum Ponderosa pine, Western yellow pine

native
Tree

2021 David popp

2019 David popp

2022 Cynthia Powell

Pinus ponderosa ssp. benthamiana Pacific ponderosa pine

native
Tree

2015 Brian Powell

2018 Jane Tirrell

2020 BLM Redding Field Office

Pinus ponderosa var. benthamiana Pacific ponderosa pine

native
Tree

2015 Brian Powell

2018 Jane Tirrell

2020 BLM Redding Field Office

Pinus ponderosa var. pacifica Pacific ponderosa pine

native
Tree

2015 Brian Powell

2018 Jane Tirrell

2020 BLM Redding Field Office

Pinus ponderosa var. ponderosa North plateau ponderosa pine

native
Tree

2011 Wynn Anderson

2013 Susan McDougall

2002 Monty Rickard

Pinus ponderosa var. washoensis Washoe pine

native
Tree

2012 Gary A. Monroe

Pinus quadrifolia Four leaf pine, Fourneedle pinyon pine, Nut pine

native
Tree

2017 Michael Ponce

2013 Alec Cook

2023 Ron Vanderhoff

Pinus radiata Monterey pine

native
Tree

2011 Toni Corelli

2012 Michael Mitchell

Pinus sabiniana Bull pine, California foothill pine, Gray pine

native
Tree

2022 Cynthia Powell

2019 Cynthia Powell

2021 R.A. Chasey

Pinus sylvestris Scotch pine

non-native
Tree

2007 Louis-M. Landry

Nick Kurzenko

2005 Louis-M. Landry

Pinus thunbergii Japanese black pine

non-native
Tree

2021 Ron Vanderhoff

Pinus torreyana Island torrey pine

native
Tree

2019 Diane Etchison

2016 Zoya Akulova

2019 Susan McDougall

Pinus torreyana ssp. insularis Santa rosa isl. torrey pine

• rare native
Tree

2021 Chris Leslie

Pinus torreyana ssp. torreyana Torrey pine

• rare native
Tree

2019 Susan McDougall

2019 Diane Etchison

2019 Susan McDougall

Piperia candida White flowered rein orchid, Whiteflower rein orchid

• rare native
Perennial herb

2019 Peter Warner

2012 Raymond Prothero

2019 Peter Warner

Piperia colemanii Coleman's piperia

• rare native
Perennial herb

2019 Matt Berger

2022 Bob Sweatt

Piperia cooperi Cooper's rein orchid, Coopers rein orchid

• rare native
Perennial herb

2021 Ron Vanderhoff

2020 Ron Vanderhoff

2018 Ron Vanderhoff

Piperia elegans Coast piperia, Elegant piperia, Elegant rein orchid

native
Perennial herb

2018 Alexandra Kookootsedes

2023 Steve Conger

2022 Hunter Breck

Piperia elegans ssp. decurtata Elegant piperia

• rare native
Perennial herb

2023 Hunter Breck

Piperia elegans ssp. elegans Elegant piperia

native
Perennial herb

2018 Saskia Raether

2022 Cynthia Powell

2017 Nicole Mercier

Piperia elongata Dense flowered rein orchid, Denseflower rein orchid

native
Perennial herb

2021 Roy West

2007 Keir Morse

Piperia leptopetala Rein orchid

• rare native
Perennial herb

2017 Ken Hickman

2021 R.A. Chasey

2019 Bob Sweatt

Piperia michaelii Michael's piperia, Michael's rein orchid

• rare native
Perennial herb

2019 stephen rosenthal

2023 John Rawlings

2020 Ken Hickman

Piperia transversa Mountain piperia, Royal rein orchid, Flat Spurred Piperia

native
Perennial herb

2015 Steve Matson

2005 Keir Morse

Piperia unalascensis Alaska piperia, Alaska rein orchid, Rein orchid

native
Perennial herb

2006 Steve Matson

2022 Steve Matson

2019 Ron Vanderhoff

Piperia yadonii Yadon's piperia, Yadon's rein orchid

• rare native
Perennial herb

2020 Mary Conway

2021 Patrick Furtado

2020 Mary Conway

Pisonia brunoniana Australasian catchbirdtree

non-native
Perennial herb

Pisonia umbellifera Umbrella catchbirdtree

non-native
Perennial herb

Pistacia atlantica Mt. atlas mastic tree, Pistachio

• invasive non-native
Tree

2020 Sara Sweet

2018 Angelique Herman

2020 Sara Sweet

Pistacia chinensis Chinese pistache, Chinese pistachio

• invasive non-native
Tree

2018 Thomas Reyes

2020 Ron Vanderhoff

2020 Jennifer Mo

Pistacia terebinthus Cyprus turpentine

non-native
Tree

Pistacia vera Pistachio nut

non-native
Tree

2021 Ryan O'Dell

2017 Zoya Akulova

2016 Neal Kramer

Pistia stratiotes Water lettuce

non-native
Perennial herb

2020 Ron Vanderhoff

2024 Ron Vanderhoff

2016 Barbara Boethling

Pisum sativum Garden pea

non-native
Annual herb

2024 David Wolfson

2015 Barry Breckling

2024 David Wolfson

Pisum sativum var. macrocarpon Garden pea

non-native
Annual herb

2024 David Wolfson

2015 Barry Breckling

2024 David Wolfson

Pisum sativum var. saccharatum Garden pea

non-native
Annual herb

2024 David Wolfson

2015 Barry Breckling

2024 David Wolfson

Pithecellobium dulce Monkeypod

non-native
Perennial herb

2021 Ron Vanderhoff

Pittosporum crassifolium Stiffleaf cheesewood, Thick leaf box, Thick leaved pittosporum

non-native
Tree, Shrub

2017 Nick Graver

2009 Neal Kramer

2008 Neal Kramer

Pittosporum tenuifolium Short leaf box, Tawhiwhi

non-native
Tree

2021 MCOSD EDRR

2015 Zoya Akulova

2013 Robert Steers/NPS

Pittosporum tobira Japanese cheesewood, Mock orange

non-native
Tree, Shrub

2022 Ron Vanderhoff

2007 Dr. Amadej Trnkoczy

2017 Ron Vanderhoff

Pittosporum undulatum Australian cheesewood, Victorian box

• invasive non-native
Tree, Shrub

2018 Ron Vanderhoff

2017 UCSC Weed Management Group

2018 Ron Vanderhoff

Pittosporum viridiflorum Cape cheesewood

non-native
Tree, Shrub

Pityopus californicus

• rare native
Perennial herb (mycoparasitic)

2022 Hunter Breck

Plagiobothrys acanthocarpus Adobe allocarya, Adobe popcornflower

native
Annual herb

2017 Steve Matson

2024 Catherine Chang

Plagiobothrys arizonicus Arizona popcorn flower, Arizona popcornflower

native
Annual herb

2020 Steve Matson

Plagiobothrys austiniae Austin's popcornflower, Rebecca austin's allocarya

native
Annual herb

2020 Matt Berger

2023 Donald Burk

Plagiobothrys bracteatus Bracted allocarya, Bracted popcorn flower, Bracted popcornflower

native
Annual herb

2023 R.A. Chasey

Plagiobothrys canescens Grey popcorn flower, Valley popcorn flower, Valley popcornflower

native
Annual herb

2022 Catherine Chang

2016 Steve Matson

Plagiobothrys canescens var. catalinensis Catalina popcornflower

native
Annual herb

Plagiobothrys canescens var. catalinensis

2016 Mary Merriman

Plagiobothrys chorisianus var. nickmanii Artist's popcornflower, Choris's popcorn flower, Popcorn flower

native
Annual herb

Plagiobothrys chorisianus var. nickmanii

2019 Diane Renshaw

2017 Toni Corelli

2022 Irene Rosen

Plagiobothrys chorisianus var. chorisianus Artist's popcornflower, Choris's popcorn flower

• rare native
Annual herb

Plagiobothrys chorisianus var. chorisianus

2023 Doug Allshouse

2017 Toni Corelli

Plagiobothrys chorisianus var. hickmanii Hickman's popcorn flower, Hickman's popcornflower

• rare native
Annual herb

Plagiobothrys chorisianus var. hickmanii

2022 Steven Mills Glascock

2023 Ellen Uhler

2022 Irene Rosen

Plagiobothrys cognatus Cognate popcorn flower, Popcorn flower, Sleeping popcorn flower

native
Annual herb

2003 Steve Matson

2016 BOB CASE

2003 Steve Matson

Plagiobothrys scouleri Cognate popcorn flower, Popcorn flower, Sleeping popcorn flower

native
Annual herb

2003 Steve Matson

2016 BOB CASE

2003 Steve Matson

Plagiobothrys collinus Cooper's popcornflower

native
Annual herb

2021 Ron Vanderhoff

2023 Ron Vanderhoff

Plagiobothrys collinus var. californicus California popcorn flower, Cooper's popcornflower

native
Annual herb

Plagiobothrys collinus var. californicus

2023 Ron Vanderhoff

2019 Ron Vanderhoff

2021 Ron Vanderhoff

Plagiobothrys collinus var. fulvescens California popcornflower, Cooper's popcornflower, Popcorn flower

native
Annual herb

2023 Ron Vanderhoff

2022 John Rawlings

2012 BOB CASE

Plagiobothrys collinus var. gracilis Cooper's popcornflower, Graceful popcorn flower

native
Annual herb

2014 Steve Matson

Plagiobothrys cusickii Cusick's popcorn flower

native
Annual herb

2011 Steve Matson

Plagiobothrys diffusus San francisco popcorn flower

• rare native
Annual herb

2011 Peter Scott

2011 Steve Matson

2011 Peter Scott

Plagiobothrys distantiflorus California popcorn flower, California popcornflower

native
Annual herb

2005 Steve Matson

Plagiobothrys fulvus Common popcorn flower, Fulvous popcorn flower, Fulvous popcornflower

native
Annual herb

2016 Steve Matson

2022 Steve Matson

Plagiobothrys fulvus var. campestris Common popcorn flower, Fulvous popcornflower, Tawny popcorn flower

native
Annual herb

2016 Steve Matson

Plagiobothrys glaber Hairless popcorn flower, Hairless popcornflower

• rare native
Annual herb

2019 Dean Wm. Taylor

2011 Steve Matson

Plagiobothrys glyptocarpus Sculptured allocarya, Sculptured popcornflower

native
Annual herb

2022 Neal Kramer

2020 Lilyanne Price

Plagiobothrys glyptocarpus var. glyptocarpus Sculptured allocarya, Sculptured popcornflower

native
Annual herb

Plagiobothrys glyptocarpus var. glyptocarpus

2009 George W. Hartwell

2005 Steve Matson

Plagiobothrys greenei Greene's allocarya, Greene's popcornflower

native
Annual herb

2020 Matt Berger

2009 Julie A. Kierstead

2013 David popp

Plagiobothrys hispidulus Harsh allocarya, Harsh popcorn flower

native
Annual herb

2019 Steve Matson

Plagiobothrys scouleri var. penicillatus Harsh allocarya, Harsh popcorn flower

native
Annual herb

Plagiobothrys scouleri var. penicillatus

2019 Steve Matson

Plagiobothrys humistratus Dwarf allocarya, Dwarf popcornflower

native
Annual herb

2021 Charles Russell

2019 John Game

2024 Ellen Uhler

Plagiobothrys hystriculus Bearded popcorn flower, Bearded popcornflower

• rare native
Annual herb

2023 Charles Russell

2007 Carol W. Witham

Plagiobothrys infectivus Dye popcorn flower, Dye popcornflower

native
Annual herb

2023 Jacob Smith

2023 Ryan O'Dell

Plagiobothrys leptocladus Alkali plagiobothrys, Finebranched popcornflower

native
Annual herb

2009 Doug Wirtz

2009 Anna Bennett

2004 Carol W. Witham

Plagiobothrys lithocaryus Mayacamas popcorn flower, Mayacamas popcornflower

• rare native
Annual herb

2011 Steve Matson

Plagiobothrys mollis Downy popcorn flower, Soft popcornflower

native
Perennial herb

2015 Steve Matson

Plagiobothrys mollis var. mollis Downy popcorn flower, Soft popcornflower

native
Perennial herb

2001 Gary A. Monroe

2008 Steve Matson

Plagiobothrys nitens Shiny nutlet popcorn flower

• rare native
Perennial herb

2011 Steve Matson

Plagiobothrys nothofulvus Rusty haired popcorn flower, Rusty popcorn flower, Rusty popcornflower

native
Annual herb

2011 Steve Matson

2015 Steve Matson

Plagiobothrys parishii Parish's popcorn flower, Parish's popcornflower

• rare native
Annual herb

2020 Steve Matson

2022 Steve Matson

Plagiobothrys reticulatus Netted popcornflower, Reticulate popcorn flower

native
Annual herb

2019 Lynn Overtree

2014 Dana York

Plagiobothrys reticulatus var. reticulatus Reticulate popcorn flower

native
Annual herb

Plagiobothrys reticulatus var. reticulatus

2014 Dana York

Plagiobothrys reticulatus var. rossianorum Fort ross allocarya

native
Annual herb

Plagiobothrys reticulatus var. rossianorum

2012 Vernon Smith

Plagiobothrys salsus Desert popcorn flower, Salty popcornflower

• rare native
Annual herb

2010 James M. Andre

2023 Matt C. Berger

Plagiobothrys scriptus Scribe popcornflower, Scribe's allocarya

native
Annual herb

2021 Donald Burk

Plagiobothrys shastensis Shasta popcorn flower, Shasta popcornflower

native
Annual herb

2008 Steve Matson

2009 Julie A. Kierstead

Plagiobothrys stipitatus Stalked popcornflower, Vernal pool allocarya

native
Annual herb

2022 Steve Matson

2017 Steve Matson

Plagiobothrys stipitatus var. micranthus Common vernal pool allocarya, Stalked popcornflower

native
Annual herb

Plagiobothrys stipitatus var. micranthus

2017 Steve Matson

Plagiobothrys stipitatus var. stipitatus Stalked popcornflower, Vernal pool allocarya

native
Annual herb

Plagiobothrys stipitatus var. stipitatus

2021 Paul Watts

null

Plagiobothrys strictus Calistoga popcorn flower, Calistoga popcornflower

• rare native
Annual herb

2014 Robert E. Preston, Ph.D.

2013 Jake Ruygt

2014 Robert E. Preston, Ph.D.

Plagiobothrys tenellus Pacific popcornflower, Popcorn flower, Slender popcorn flower

native
Annual herb

2023 Larry Dizmang

2022 Mike Russler

Plagiobothrys tener Slender allocarya, Slender popcorn flower, Slender popcornflower

native
Annual herb

2011 Steve Matson

Plagiobothrys tener var. subglaber Slender popcornflower

native
Annual herb

2011 Steve Matson

Plagiobothrys tener var. tener Slender popcornflower

native
Annual herb

2020 Susan McDougall

2011 Steve Matson

Plagiobothrys torreyi Torrey's popcorn flower, Torrey's popcornflower

native
Annual herb

2022 Bob Sweatt

2022 Mike Russler

2020 Bob Sweatt

Plagiobothrys torreyi var. diffusus Torrey's popcornflower

native
Annual herb

2011 Steve Matson

Plagiobothrys torreyi var. perplexans Chaparral popcornflower

• rare native
Annual herb

2017 Neal Kramer

Plagiobothrys torreyi var. torreyi Torrey's popcorn flower, Torrey's popcornflower

• rare native
Annual herb

2011 Steve Matson

Plagiobothrys trachycarpus Rough fruited allocarya, Roughfruit popcornflower

native
Annual herb

2022 Catherine Chang

Plagiobothrys uncinatus Hooked popcorn flower, Salinas valley popcornflower

• rare native
Annual herb

2003 Keir Morse

2008 Keir Morse

2014 Jean Pawek

Plagiobothrys undulatus Coast allocarya

native
Annual herb

2012 Terrence Gosliner

2024 Ron Vanderhoff

2006 Steve Matson

Plagiobothrys myosotoides Forget-me-not popcornflower

• rare native
Annual herb

2009 Chris Winchell

Plagiobothrys myosotoides ssp. verrucosus Forget-me-not popcornflower

• rare native
Annual herb

Plagiobothrys myosotoides ssp. verrucosus

2009 Chris Winchell

Planodes virginicum Common rock cress

native
Annual, Perennial herb

2017 James Bailey

Plantago arenaria Indian plantain

non-native
Annual herb

2020 Ron Vanderhoff

2016 Ron Vanderhoff

2020 Ron Vanderhoff

Plantago aristata Bristly plantain, Largebracted plantain

non-native
Annual, Perennial herb

2015 Jordan Zylstra

Plantago coronopus Buckhorn plantain, Cut leaf plantain

• invasive non-native
Annual herb

2022 R.A. Chasey

2021 Zoya Akulova-Barlow

2017 MCOSD Restoration Crew

Plantago elongata Annual coast plantago, Coastal plantain, Long leaf plantain

native
Annual herb

2017 Barbara Boethling

2019 Ron Vanderhoff

2020 Ron Vanderhoff

Plantago erecta California plantain, Dotseed plantain, Foothill plantain

native
Annual herb

2008 Steve Matson

2022 Steve Matson

Plantago eriopoda Hairy fruited plantain, Redwool plantain

native
Perennial herb

2011 Ryan Batten

Plantago altissima English plantain, Narrow leaved plantain, Ribgrass

• invasive non-native
Perennial herb

2017 Gary McDonald

2019 Joe Engelbrecht

2021 Ken Lunders

Plantago lanceolata English plantain, Narrow leaved plantain, Ribgrass

• invasive non-native
Perennial herb

2017 Gary McDonald

2019 Joe Engelbrecht

2021 Ken Lunders

Plantago lanceolata var. lanceolata English plantain, Narrow leaved plantain, Ribgrass

• invasive non-native
Perennial herb

2017 Gary McDonald

2019 Joe Engelbrecht

2021 Ken Lunders

Plantago major Common plantain

non-native
Perennial herb

2019 Bob Sweatt

2022 Diana Wahl

2020 Ryan Carle

Plantago maritima Alkali plantain, Goose tongue, Maritime plantain

native
Perennial herb

2018 Adam Chasey

2021 Jamie Spielmann

2020 Ken Hickman

Plantago maritima var. juncoides Alkali plantain, Goose tongue, Maritime plantain

native
Perennial herb

2018 Adam Chasey

2021 Jamie Spielmann

2020 Ken Hickman

Plantago ovata Desert indianwheat, Desert plantain, Woolly plantain

native
Annual herb

2023 Julia Markey

2019 Diane Etchison

2019 Stacie Wolny

Plantago ovata var. fastigiata Desert plantain

native
Annual herb

2019 Matt Berger

2019 Susan McDougall

2008 Richard Spjut

Plantago ovata var. insularis Desert plantain

native
Annual herb

2015 Keir Morse

Plantago patagonica Patagonia plantain, Woolly plantain

native
Annual herb

2020 Ron Vanderhoff

2004 James M. Andre

Plantago purshii Patagonia plantain, Woolly plantain

native
Annual herb

2020 Ron Vanderhoff

2004 James M. Andre

Plantago rhodosperma Redseed plantain, Virginia plantain

native
Annual, Perennial herb

2015 Keir Morse

Plantago subnuda Mexican plantain, Naked plantain, Tall coastal plantain

native
Perennial herb

2019 Patrick Furtado

2022 Dianne Lake

2009 Toni Corelli

Plantago truncata ssp. firma Chilean plantain

non-native
Annual herb

2008 Doreen L. Smith

2018 Vernon Smith

Plantago virginica Dwarf plantain, Virginia plantain

non-native
Annual, Perennial herb

2016 Neal Kramer

Platanthera dilatata Scentbottle

native
Perennial herb

2023 Steve Conger

2020 Bob Sweatt

2019 Bob Sweatt

Platanthera dilatata var. dilatata Scentbottle

native
Perennial herb

2023 Steve Conger

2020 Bob Sweatt

2019 Bob Sweatt

Platanthera dilatata var. leucostachys Sierra bog orchid, White Flowered Bog-Orchid

native
Perennial herb

2022 Mike Russler

2014 Dee Warenycia

2019 Industrious Walkers of the World

Platanthera leucostachys Sierra bog orchid, White Flowered Bog-Orchid

native
Perennial herb

2022 Mike Russler

2014 Dee Warenycia

2019 Industrious Walkers of the World

Platanthera huronensis

native
Perennial herb

2015 Barry Breckling

2016 Keir Morse

Platanthera sparsiflora Bog orchid, Sparse flowered bog orchid

native
Perennial herb

2020 Bob Sweatt

2004 Steve Matson

2019 Matt Berger

Platanthera sparsiflora var. ensifolia Bog orchid, Sparse flowered bog orchid

native
Perennial herb

2020 Bob Sweatt

2004 Steve Matson

2019 Matt Berger

Habenaria saccata Slender bog orchid

• rare native
Perennial herb

2023 Dana York

Platanthera stricta Slender bog orchid

• rare native
Perennial herb

2023 Dana York

Limnorchis hyperborea Green flowered bog orchid

native
Perennial herb

2016 Steve Matson

2015 Steve Matson

Platanthera aquilonis Green flowered bog orchid

native
Perennial herb

2016 Steve Matson

2015 Steve Matson

Platanthera hyperborea Green flowered bog orchid

native
Perennial herb

2016 Steve Matson

2015 Steve Matson

Platanthera hyperborea var. hyperborea Green flowered bog orchid

native
Perennial herb

2016 Steve Matson

2015 Steve Matson

Platanthera tescamnis Green flowered bog orchid

native
Perennial herb

2016 Steve Matson

2015 Steve Matson

Platanthera yosemitensis Yosemite bog orchid

• rare native
Perennial herb

2020 Raymond Prothero

2009 Keir Morse

Platanus occidentalis American sycamore

non-native
Tree

2018 Catherine Capone

2011 Louis-M. Landry

Platanus orientalis Oriental planetree

non-native
Tree

2016 Zoya Akulova

Platanus racemosa California sycamore, Western sycamore

native
Tree

2021 Ron Vanderhoff

2018 Ron Vanderhoff

2019 Rachelle Gray

Platanus Xhispanica London plane tree

non-native
Tree

2015 Michelle Chen

2022 Ron Vanderhoff

2016 Zoya Akulova

Platycerium bifurcatum Elkhorn fern

non-native
Fern

Platycladus orientalis Oriental arborvitae

non-native
Tree

Platystemon californicus Cream cups, Creamcups

native
Annual herb

2019 Diane Etchison

2022 John L. Thompson

Plecostachys serpyllifolia Petite-licorice

• invasive non-native

2018 Ron Vanderhoff

2021 Ron Vanderhoff

2018 Ron Vanderhoff

Plectritis ciliosa Long spurred plectritis, Longspur seablush

native
Annual herb

2022 Steve Matson

2005 Steve Matson

2022 Steve Matson

Plectritis congesta Sea blush, Shortspur seablush

native
Annual herb

2023 Helen Hancock

2023 Catherine Chang

2023 Helen Hancock

Plectritis brachystemon Shortspur seablush

native
Annual herb

2023 Catherine Chang

2005 Steve Matson

2018 Gail Johnson

Plectritis congesta ssp. brachystemon Shortspur seablush

native
Annual herb

2023 Catherine Chang

2005 Steve Matson

2018 Gail Johnson

Plectritis congesta ssp. congesta Sea blush

native
Annual herb

2022 Jerry Murray

2010 Vernon Smith

2018 Vernon Smith

Plectritis macrocera Long horn plectritis, Longhorn plectritis, White plectritis

native
Annual herb

2019 Gary McDonald

2020 Bob Sweatt

2020 Susan McDougall

Pleiacanthus spinosus Thorn skeletonweed

native
Perennial herb

2019 Steve Matson

Stephanomeria spinosa Thorn skeletonweed

native
Perennial herb

2019 Steve Matson

Pleuraphis mutica Tobosagrass

native
Perennial grass

2018 Wynn Anderson

Pleuricospora fimbriolata Fringed pinesap

native
Perennial herb (mycoparasitic)

2016 Steve Matson

2020 R.A. Chasey

Pleuridium acuminatum Acuminate pleuridium moss

native
Moss

DITRICHACEAE

2013 Scot Loring

Pleuridium mexicanum Mexican pleuridium moss

• rare native
Moss

DITRICHACEAE

2012 John Game

Pleuridium subulatum Pleuridium moss

native
Moss

DITRICHACEAE

2013 calbryos group

2013 Scot Loring

2011 calbryos group

Pleurocoronis pluriseta Arrow leaf, Bush arrowleaf

native
Shrub

2012 Steve Matson

2016 Steve Matson

2012 Steve Matson

Pleuropogon californicus Annual semaphoregrass, Semaphore grass

native
Perennial grass (rhizomatous)

2018 Hayley Ross

Pleuropogon californicus var. californicus Annual semaphoregrass

native
Perennial grass (rhizomatous)

Pleuropogon californicus var. californicus

2023 Denise Defreese

2021 Denise Defreese

2021 R.A. Chasey

Pleuropogon californicus var. davyi Davy's semaphore grass

• rare native
Perennial grass (rhizomatous)

2018 Japhia Huhndorf

2015 Allison Rofe

2018 Emily Allen

Pleuropogon hooverianus North coast semaphore grass, North coast semaphoregrass

• rare native
Perennial grass (rhizomatous)

2022 Emily R. Allen

2020 Hannah Kang

Pleuropogon refractus Nodding semaphore grass, Nodding semaphoregrass

• rare native
Perennial grass (rhizomatous)

$Pleuropogon refractus$

2022 R.A. Chasey

$Pleuropogon refractus$

2022 R.A. Chasey

$Pleuropogon refractus$

2018 Claire Brown

Pluchea odorata Salt marsh fleabane, Sweetscent

native
Annual, Perennial herb

2020 Aaron Echols

2019 Ron Vanderhoff

2011 Keir Morse

Pluchea odorata var. odorata Salt marsh fleabane

native
Annual, Perennial herb

2011 Keir Morse

2019 Ron Vanderhoff

Pluchea sericea Arrow wed, Arrow weed, Arrowweed

native
Shrub

2018 Terry Hunefeld

2021 Richard Spjut

2018 Christopher Hauser

Plumbago auriculata Cape leadwort

non-native
Perennial herb

2021 Ron Vanderhoff

2020 Stephen Rosenthal

2021 Ron Vanderhoff

Plumbago capensis Cape leadwort

non-native
Perennial herb

2021 Ron Vanderhoff

2020 Stephen Rosenthal

2021 Ron Vanderhoff

Poa annua Annual blue grass, Annual bluegrass

non-native
Annual grass

2021 Ron Vanderhoff

2022 John Rawlings

2015 Richard Chasey

Poa atropurpurea San bernardino blue grass, San bernardino bluegrass

• rare native
Perennial grass (rhizomatous)

2009 Thomas Stoughton

2014 Jordan Zylstra

Poa bigelovii Bigelow's blue grass, Bigelow's bluegrass

native
Annual grass

2017 Keir Morse

Poa bolanderi Bolander's blue grass, Bolander's bluegrass

native
Annual grass

2014 Belinda Lo

Poa bulbosa Bulbous blue grass, Bulbous bluegrass

non-native
Perennial grass

2020 Julie A. Kierstead

2019 Stephany Dery

2020 Thomas Reyes

Poa bulbosa ssp. vivipara Bulbous blue grass

non-native
Perennial grass

null

2015 Richard Chasey

2022 John Rawlings

Poa compressa Canada blue grass, Canada bluegrass

non-native
Perennial grass

2006 Louis-M. Landry

2015 David popp

Poa confinis Beach blue grass, Coastline bluegrass

native
Perennial grass

2021 Chris Brant

2022 John Rawlings

Poa cusickii Cusick's bluegrass

native
Perennial grass

2016 Steve Matson

Poa cusickii var. cusickii Cusick's blue grass

native
Perennial grass

2019 John Rawlings

Poa cusickii ssp. epilis Cusick's bluegrass, Skyline blue grass, Skyline bluegrass

native
Perennial grass

2017 David popp

2018 Susan McDougall

Poa cusickii ssp. pallida Cusick's bluegrass, Skyline blue grass

native
Perennial grass

2016 Steve Matson

Poa douglasii Douglas bluegrass, Douglas' bluegrass, Maritime bluegrass

native
Perennial grass

2011 Toni Corelli

2014 Alice Cumings

2011 Toni Corelli

Poa fendleriana Muttongrass

native
Perennial grass

2010 James M. Andre

2007 Trent M. Draper

2006 Trent M. Draper

Poa fendleriana ssp. longiligula Fendler's blue grass, Muttongrass

native
Perennial grass

2007 Trent M. Draper

2006 Trent M. Draper

2007 Trent M. Draper

Poa glauca ssp. rupicola Timberline blue grass, Timberline bluegrass

native
Perennial grass

2016 Steve Matson

Poa howellii Howell's blue grass, Howell's bluegrass

native
Annual grass

2018 Ken Hickman

2020 Ken Hickman

Poa keckii Keck's blue grass, Keck's bluegrass

native
Perennial grass

2022 John Rawlings

2013 Kerry Heise

Poa leptocoma Marsh bluegrass

native
Perennial grass

2010 Steve Matson

Poa leptocoma ssp. leptocoma Bog blue grass

native
Perennial grass

2010 Steve Matson

2021 John Rawlings

Poa lettermanii Letterman's blue grass, Letterman's bluegrass

• rare native
Perennial grass

Poa macrantha Large flowered sand dune blue grass, Seashore bluegrass

native
Perennial grass

2017 Steve Matson

Poa napensis Napa blue grass, Napa bluegrass

• rare native
Perennial grass

2018 Jake Ruygt

Poa palustris Fowl blue grass, Fowl bluegrass

non-native
Perennial grass

2015 David popp

2008 Keir Morse

2008 Louis-M. Landry

Poa piperi Piper's blue grass, Piper's bluegrass

• rare native
Perennial grass (rhizomatous)

2017 Dana York

Poa pratensis Kentucky blue grass, Kentucky bluegrass

• invasive non-native
Perennial grass

2013 Andrea Williams

2008 Keir Morse

2013 Andrea Williams

Poa pratensis ssp. agassizensis Kentucky blue grass, Kentucky bluegrass

• invasive non-native
Perennial grass

2021 John Rawlings

2020 Diana Wahl

1998 Dean Wm. Taylor (Poa pratensis ssp. agassizensis)

Poa pringlei Pringle's blue grass, Pringle's bluegrass

native
Perennial grass

2020 David popp

Poa secunda One sided blue grass, Pine bluegrass, Sandberg bluegrass

native
Perennial grass

2019 Rachelle Gray

2019 Paul Aigner

2020 Paul Aigner

Poa secunda ssp. juncifolia Rush blue grass

native
Perennial grass

2022 John Rawlings

2017 john rawlings

2008 Keir Morse

Poa scabrella One sided blue grass, Pine bluegrass, Sandberg's bluegrass

native
Perennial grass

2018 Ron Vanderhoff

Poa secunda ssp. secunda One sided blue grass, Pine bluegrass, Sandberg's bluegrass

native
Perennial grass

2018 Ron Vanderhoff

Poa sierrae Sierra blue grass, Sierra bluegrass

• rare native
Perennial grass

2019 Matt Berger

2017 Belinda Lo

2019 Matt Berger

Poa stebbinsii Stebbin's bluegrass, Stebbins' blue grass

native
Perennial grass

2010 Steve Matson

Poa trivialis Rough blue grass, Rough bluegrass

non-native
Perennial grass

2006 Greta Murdoff

Poa unilateralis Ocean bluff blue grass, San francisco bluegrass

native
Perennial grass

2019 Justin Luong

2018 John Rawlings

2018 Gregory Arena

Poa unilateralis ssp. unilateralis San francisco bluegrass

native
Perennial grass

2016 Toni Corelli

2022 John Rawlings

2020 John Rawlings

Poa wheeleri Hooker's bluegrass, Wheeler's blue grass, Wheeler's bluegrass

native
Perennial grass

2010 Steve Matson

Podistera nevadensis Nevada podistera, Sierra podistera

• rare native
Perennial herb

2005 Steve Matson

2020 Bob Sweatt

Podocarpus macrophyllus Yew plum pine

non-native
Shrub

PODOCARPACEAE

2021 Ron Vanderhoff

Pogogyne abramsii Howell pogogyne, San diego mesa mint, San diego mesamint

• rare native
Annual herb

2023 Caitlin Kreutz

2012 Keir Morse

2001 Barry Du Bois

Pogogyne clareana Clare's pogogyne, Santa lucia mint

• rare native
Annual herb

1999 Dieter Wilken

2006 Aaron Schusteff

Pogogyne douglasii Douglas' mesamint, Douglas' pogogyne

native
Annual herb

2022 Steve Matson

2016 Ray Gill

2022 Ramona Robison

Pogogyne douglasii ssp. parviflora Douglas' mesamint, Douglas's pogogyne

native
Annual herb

1998 Dean Wm. Taylor

Pogogyne floribunda Profuse flowered pogogyne, Profuseflower mesamint

• rare native
Annual herb

1988 Dean Wm. Taylor

2010 Sierra Pacific Industries

Pogogyne nudiuscula Otay mesa mint, Otay mesamint, San diego pogogyne

• rare native
Annual herb

2010 Anna Bennett

2001 Greg Mason

Pogogyne serpylloides Thyme leaf mesa mint, Thymeleaf mesamint

native
Annual herb

2020 Stacie Wolny

2022 R.A. Chasey

2020 Stacie Wolny

Pogogyne zizyphoroides Sacramento mesamint, Sacramento mint, Sacramento pogogyne

native
Annual herb

2022 Steve Matson

2022 Charles Russell

Pohlia tundrae Tundra pohlia moss

• rare native
Moss

BRYACEAE

Polanisia dodecandra ssp. dodecandra Redwhisker clammyweed

native
Annual herb

2020 Steve Laymon

2017 Kristin Jacobs

2019 David popp

Polanisia dodecandra ssp. trachysperma Clammy weed, Sandyseed clammyweed

native
Annual herb

2020 Steve Laymon

2019 David popp

2017 Kristin Jacobs

Polemonium californicum California polemonium, California sky pilot, Jacob's ladder

native
Perennial herb

2020 Bob Sweatt

2005 Steve Matson

Polemonium carneum Great polemonium, Royal jacob's ladder, Royal sky pilot

• rare native
Perennial herb

2021 Amy Rachkowski

2000 Dianne Fristrom

2017 Steve Matson

Polemonium chartaceum Mason's jacob's ladder, Mason's sky pilot

• rare native
Perennial herb

2004 Steve Matson

Polemonium eddyense Mt. Eddy sky pilot

• rare native
Perennial herb

2020 Dana York

2011 Steve Matson

2019 Chasey

Polemonium eximium Showy sky pilot, Skypilot

native
Perennial herb

2012 Steve Matson

2022 Bob Steele

2017 Aaron Echols

Polemonium micranthum Annual polemonium, Annual sky pilot, Small jacob's ladder

native
Annual herb

2009 Steve Matson

Polemonium caeruleum Great polemonium, Western polemonium, Western sky pilot

native
Perennial herb

2005 Steve Matson

2008 Steve Matson

2020 Bob Sweatt

Polemonium occidentale Great polemonium, Western polemonium, Western sky pilot

native
Perennial herb

2005 Steve Matson

2008 Steve Matson

2020 Bob Sweatt

Polemonium occidentale ssp. occidentale Great polemonium, Western polemonium, Western sky pilot

native
Perennial herb

2005 Steve Matson

2008 Steve Matson

2020 Bob Sweatt

Polemonium pulcherrimum Jacob's ladder, Sky pilot

native
Perennial herb

2019 Steve Matson

2019 Bob Sweatt

2019 R.A. Chasey

Polemonium pulcherrimum ssp. delicatum Jacob's ladder, Sky pilot

native
Perennial herb

2019 Steve Matson

2019 Bob Sweatt

2019 R.A. Chasey

Polemonium pulcherrimum var. pilosum White flowered polemonium, White flowered sky pilot

native
Perennial herb

2009 George W. Hartwell

2016 John Doyen

2018 Matt C. Berger

Polemonium pulcherrimum ssp. pulcherrimum Sky pilot

native
Perennial herb

Polemonium pulcherrimum ssp. pulcherrimum

2016 Steve Matson

2021 R.A. Chasey

2019 R.A. Chasey

Polemonium pulcherrimum var. pulcherrimum Sky pilot

native
Perennial herb

Polemonium pulcherrimum var. pulcherrimum

2016 Steve Matson

2021 R.A. Chasey

2019 R.A. Chasey

Polemonium pulcherrimum var. shastense Mt. shasta sky pilot

• rare native
Perennial herb

2019 Steve Matson

2005 Cheryl Beyer

Polemonium viscosum Sticky polemonium

non-native
Perennial herb

Polianthes tuberosa Tuberose

non-native
Shrub

Polycarpon depressum California allseed, California manyseed, California polycarpon

native
Annual herb

2023 James Bailey

2011 Neal Kramer

Polycarpon tetraphyllum Four leaved all seed, Four leaved allseed, Four leaved polycarp

non-native
Annual herb

2020 Ron Vanderhoff

2019 Ron Vanderhoff

2020 Ron Vanderhoff

Polycarpon tetraphyllum var. tetraphyllum Four leaved allseed

non-native
Annual herb

Polycarpon tetraphyllum var. tetraphyllum

2022 Donald Burk

2021 Donald Burk

2013 Toni Corelli

Polyctenium fremontii Desert combleaf, Fremont's polyctenium

native
Perennial herb

2011 Steve Matson

2009 Steve Matson

Polyctenium williamsiae Williams's combleaf

• rare native
Perennial herb

2020 Matt Berger

2009 Steve Matson

2020 Matt Berger

Polygala acanthoclada Desert milkwort, Desert polygala, Milkwort

• rare native
Shrub

2011 Keir Morse

Polygala cornuta var. fishiae Fish's milkwort, Sierra milkwort

• rare native
Shrub

2019 Rachelle Gray

2022 Ron Vanderhoff

2019 Rachelle Gray

Polygala heterorhyncha Beaked spiny polygala, Notch beaked milkwort

• rare native
Perennial herb

2006 James M. Andre

Polygala intermontana Great basin milkwort, Intermountain milkwort

• rare native
Perennial herb, Shrub

2017 Jim Morefield

Polygala myrtifolia Myrtle leaf milkwort

• invasive non-native
Shrub

2019 MCOSD EDRR

2015 Pete Frye

2017 MCOSD EDRR

Polygala subspinosa Spiny milkwort

• rare native
Perennial herb

2022 Trevor Schalla

Polygonum argyrocoleon Persian knotweed, Silver sheath knotweed, Silversheath knotweed

non-native
Annual herb

2020 Ron Vanderhoff

2018 Ron Vanderhoff

2020 Ron Vanderhoff

Polygonum aviculare Prostrate knotweed

non-native
Annual, Perennial herb

2023 Ron Vanderhoff

2023 Cynthia Powell

2021 Ron Vanderhoff

Polygonum arenastrum Prostrate knotweed

non-native
Annual, Perennial herb

2016 Barbara Boethling

2021 Ron Vanderhoff

2014 Richard Chasey

Polygonum aviculare ssp. depressum Prostrate knotweed

non-native
Annual, Perennial herb

2016 Barbara Boethling

2021 Ron Vanderhoff

2014 Richard Chasey

Polygonum patulum Prostrate knotweed

non-native
Annual, Perennial herb

Polygonum aviculare ssp. rurivagum Prostrate knotweed

non-native
Annual, Perennial herb

2008 Doreen L. Smith

Polygonum bidwelliae Bidwell's knotweed

• rare native
Annual herb

2021 Donald Burk

2010 George W. Hartwell

2024 Alaine Arslan

Polygonum bistorta Meadow bistort

non-native
Annual, Perennial herb

Polygonum bolanderi Bolander's knotweed, Bolander's polygonum

native
Perennial herb

2022 R.A. Chasey

2019 Matt Berger

Polygonum californicum California knotweed

native
Annual herb

2019 David Greenberger

2022 BOB CASE

2004 Steve Matson

Polygonum douglasii Douglas' knotweed

native
Annual herb

2020 Bob Sweatt

2022 Mike Russler

Polygonum douglasii ssp. douglasii Douglas' knotweed

native
Annual herb

2020 Bob Sweatt

2022 Mike Russler

Polygonum fowleri Fowler's knotweed

native
Annual herb

2015 Ryan Batten

Polygonum hickmanii Hickman's knotweed

• rare native
Annual herb

2006 California Department of Fish and Game

Polygonum majus Large douglas' knotweed

native
Annual herb

2008 Keir Morse

Polygonum marinense Marin knotweed

• rare native
Annual herb

2022 Sheryl Creer

2013 Robert Sikora

Polygonum minimum Broadleaf knotweed, Leafy dwarf knotweed, Little mountain knotweed

native
Annual herb

2020 Bob Sweatt

2012 Steve Matson

2021 Mike Russler

Polygonum multiflorum Tuber fleeceflower

non-native
Vine

2001 CDFA

Polygonum paronychia Beach knotweed, Dune knotweed

native
Perennial herb

2016 Steve Matson

Polygonum parryi Parry's knotweed

native
Annual herb

2019 Matt Berger

2020 David popp

2019 Dean Taylor

Polygonum polygaloides Milkwort knotweed

native
Annual herb

2022 Steve Ashcraft

2007 Keir Morse

Polygonum polygaloides ssp. confertiflorum Dense knotweed, Fruitleaf knotweed

native
Annual herb

Polygonum polygaloides ssp. confertiflorum

2007 Keir Morse

Polygonum polygaloides ssp. esotericum Modoc county knotweed, Whitemargin knotweed

• rare native
Annual herb

2023 Donald Burk

Polygonum polygaloides ssp. kelloggii Kellogg's knotweed

native
Annual herb

2010 Steve Matson

2005 Steve Matson

Polygonum ramosissimum Bushy knotweed, Yellow knotweed

non-native
Annual herb

2015 Daniel Boone

Polygonum sawatchense ssp. oblivium Knotweed

native
Annual, Perennial herb

2012 Dean Wm. Taylor. Ph. D.

2019 Neal Kramer

2009 Barry Breckling

Polygonum douglasii ssp. johnstonii Knotweed

native
Annual, Perennial herb

2019 Susan McDougall

2009 Barry Breckling

Polygonum sawatchense ssp. sawatchense Knotweed

native
Annual, Perennial herb

2019 Susan McDougall

2009 Barry Breckling

Polygonum shastense Shasta knotweed

native
Perennial herb

2019 Jane Cohn

2018 Matt Berger

2022 Mike Russler

Polygonum spergulariiforme Spurry knotweed

native
Annual herb

2016 Steve Matson

2021 Dana York

2020 R.A. Chasey

Polypodium australe

non-native
Fern

2007 Dr. Amadej Trnkoczy

Polypodium californicum California polypody

native
Fern

2020 Ron Vanderhoff

2021 Ron Vanderhoff

2023 Keir Morse

Polypodium calirhiza Acrid fern, Licorice fern, Nested polypody

native
Fern

2022 BOB CASE

2015 James Gonsman

2020 Susan McDougall

Polypodium glycyrrhiza Licorice fern

native
Fern

2014 BOB CASE

2022 Mary Conway

2014 BOB CASE

Polypodium hesperium Western polypody

native
Fern

2011 Ryan Batten

2011 Barry Breckling

Polypodium scouleri Leather fern, Leather leaf fern, Leathery polypody

native
Fern

2018 Gregory Arena

2021 R.A. Chasey

2022 David Strauch

Polypogon australis Chilean beard grass, Chilean rabbitsfoot grass

non-native
Perennial grass

2018 Elliot Gunnison

2020 David popp

2018 Elliot Gunnison

Polypogon imberbis Streambank rabbits foot grass

non-native
Annual, Perennial grass

2006 Adonis (Don) Tate

Polypogon interruptus Ditch beard grass, Ditch rabbitsfoot grass

non-native
Perennial grass

2022 John Rawlings

2020 Ron Vanderhoff

Polypogon maritimus Mediterranean beard grass, Mediterranean rabbitsfoot grass

non-native
Annual grass

2022 David popp

2020 Diana Wahl

2009 Keir Morse

Polypogon monspeliensis Annual beard grass, Rabbitsfoot grass

• invasive non-native
Annual grass

2008 Steve Matson

2014 Steve Matson

2008 Steve Matson

Polypogon viridis Water beard grass

non-native
Perennial grass

2022 Ron Vanderhoff

2021 Ron Vanderhoff

2019 Friends of Five Creeks volunteers

Polystichum californicum California sword fern, California swordfern

native
Fern

2018 Diane Renshaw

2019 Hunter Breck

2015 John Malpas

Polystichum dudleyi Dudley's sword fern, Dudley's swordfern

native
Fern

2021 John Rawlings

2019 Joerg Lohse

2023 R.A. Chasey

Polystichum imbricans Cliff sword fern, Narrow leaved sword fern, Narrowleaf swordfern

native
Fern

2009 Ron Vanderhoff

2018 David popp

2015 Robert Barnard

Polystichum imbricans ssp. curtum Cliff sword fern, Narrowleaf swordfern

native
Fern

2015 Robert Barnard

2016 Keir Morse

2016 Cynthia Powell

Polystichum imbricans ssp. imbricans Narrowleaf swordfern, Rock sword fern

native
Fern

2018 David popp

2014 Ron Vanderhoff

2016 Ron Vanderhoff

Polystichum kruckebergii Kruckeberg's hollyfern, Kruckeberg's sword fern

• rare native
Fern (rhizomatous)

2022 Dana York

2010 Dana York

2022 Dana York

Polystichum lemmonii Lemmon's hollyfern, Lemmon's sword fern

native
Fern

2020 R.A. Chasey

2007 Neal Kramer

Polystichum lonchitis Holly fern, Northern hollyfern

• rare native
Fern (rhizomatous)

2019 Michael Kauffmann

2022 Dana York

Polystichum munitum Western sword fern, Western swordfern

native
Fern

2021 Julie A. Kierstead

2022 Jerry Murray

2011 Toni Corelli

Polystichum scopulinum Mountain holly fern, Mountain hollyfern

native
Fern

2018 David popp

2010 Keir Morse

2019 Matt Berger

Poncirus trifoliata Hardy orange

non-native
Shrub, Tree

Pontederia cordata Pickerelweed

non-native
Perennial herb

2005 Louis-M. Landry

Populus alba Silver poplar, White poplar

non-native
Tree

2020 Maisie Borg

2016 Sara Sweet

2020 Jennifer Mo

Populus angustifolia Narrow leaved cottonwood, Narrowleaf cottonwood

• rare native
Tree

2017 Brian Powell

2010 Lee Dittmann

Populus fremontii Fremont cottonwood

native
Tree

2018 Julie Kierstead Nelson

2023 Cynthia Powell

2019 Hailey Laskey

Populus fremontii ssp. mesetae Fremont cottonwood

native
Tree

2018 Julie Kierstead Nelson

2023 Cynthia Powell

2019 Hailey Laskey

Populus deltoides Fremont cottonwood

native
Tree

2019 Stella Yang

2020 David popp

2020 Susan McDougall

Populus deltoides ssp. monilifera Fremont cottonwood

native
Tree

2019 Stella Yang

2020 David popp

2020 Susan McDougall

Populus fremontii ssp. fremontii Fremont cottonwood

native
Tree

2019 Stella Yang

2020 David popp

2020 Susan McDougall

Populus nigra Lombardy poplar

non-native
Tree

2019 Ron Vanderhoff

2013 Cynthia Powell

Populus tremuloides Quaking aspen

native
Tree

2022 Maisie Borg

2022 Paul Watts

Populus trichocarpa Black cottonwood

native
Tree

2019 Ron Vanderhoff

2012 Steve Matson

Populus Xcanadensis Carolina poplar

non-native
Tree

Porophyllum gracile Odora, Slender poreleaf

native
Perennial herb

2019 Matt Berger

2008 Steve Matson

2023 Ron Vanderhoff

Porophyllum ruderale Yerba porosa

non-native
Annual herb

2014 Richard Spellenberg

Porophyllum ruderale var. macrocephalum Yerba porosa

non-native
Annual herb

2012 Zoya Akulova

Porophyllum scoparium Trans-pecos poreleaf

non-native
Annual herb

Porterella carnosula Fleshy porterella, Porterella

native
Annual herb

2007 Steve Matson

2003 Steve Matson

Portulaca grandiflora Rose moss

non-native
Annual herb

2008 Luigi Rignanese

Portulaca halimoides Desert portulaca, Purslane, Silkcotton purslane

• rare native
Annual herb

2012 Keir Morse

2013 Don Davis

2004 James M. Andre

Portulaca pilosa Desert portulaca, Purslane, Silkcotton purslane

• rare native
Annual herb

2012 Keir Morse

2013 Don Davis

2004 James M. Andre

Portulaca oleracea Common purslane, Little hogweed, Purslane

non-native
Annual herb

2022 Donald Burk

2022 Ron Vanderhoff

2020 R.A. Chasey

Portulaca oleracea ssp. impolita Common purslane, Little hogweed, Purslane

non-native
Annual herb

2022 Donald Burk

2022 Ron Vanderhoff

2020 R.A. Chasey

Potamogeton amplifolius Broad leaved pondweed, Large leaved pondweed, Largeleaf pondweed

native
Perennial herb (aquatic)

2010 Jean Pawek

Potamogeton crispus Crispate leaved pondweed, Curly pondweed, Cut leaved pondweed

• invasive non-native
Perennial herb (aquatic)

2021 Ron Vanderhoff

Potamogeton diversifolius Diverse leaved pondweed, Rafinesque's pondweed, Waterthread pondweed

native
Perennial herb (aquatic)

2019 Daria Snider

2020 Daria Snider

Potamogeton epihydrus Ribbonleaf pondweed

• rare native
Perennial herb (rhizomatous)

2020 Maisie Borg

2010 Louis-M. Landry

Potamogeton foliosus ssp. foliosus Leafy pondweed

native
Perennial herb (aquatic)

2020 Ron Vanderhoff

Potamogeton illinoensis Illinois pondweed, Pondweed, Shining pondweed

native
Perennial herb (aquatic)

2014 Robert L. Carr

Potamogeton natans Floating leaved pondweed, Floating pondweed

native
Perennial herb (aquatic)

2006 Steve Matson

Potamogeton nodosus Long leaved pondweed, Longleaf pondweed, Pondweed

native
Perennial herb (aquatic)

2020 Ken Hickman

2019 Gena Bentall

2020 Ken Hickman

Potamogeton praelongus White stemmed pondweed, Whitestem pondweed

• rare native
Perennial herb (rhizomatous)

2022 Bas Kers

2022 Cynthia Powell

2019 Cynthia Powell

Potamogeton pusillus Small pondweed

native
Perennial herb (aquatic)

2007 Neal Kramer

null

2013 Jake Ruygt

Potamogeton robbinsii Robbins' pondweed, Robbins's pondweed

• rare native
Perennial herb (rhizomatous)

2014 Dana York

2023 Dana York

Potentilla anglica English cinquefoil

non-native
Perennial herb

2017 James Bailey

2013 Vernon Smith

Argentina anserina Silver weed cinquefoil, Silverweed

native
Perennial herb

2015 James Gonsman

2021 Rosaleen

2019 Joerg Lohse

Potentilla anserina Silver weed cinquefoil, Silverweed

native
Perennial herb

2015 James Gonsman

2021 Rosaleen

2019 Joerg Lohse

Potentilla anserina ssp. anserina Silver weed cinquefoil

native
Perennial herb

2023 Donald Burk

2002 Margo Bors

2011 Tom Schweich

Potentilla anserina ssp. pacifica Pacific potentilla, Silverweed

native
Perennial herb

2022 R.A. Chasey

2021 Charles Russell

2022 R.A. Chasey

Potentilla egedii Pacific potentilla, Silverweed

native
Perennial herb

2022 R.A. Chasey

2021 Charles Russell

2022 R.A. Chasey

Potentilla basaltica Black rock potentilla, Soldier meadows cinquefoil

• rare native
Perennial herb

2008 Dean Wm. Taylor, Ph.D.

2009 F. Gauna

Potentilla biennis Biennial cinquefoil

native
Perennial herb

2022 Steve Ashcraft

Potentilla breweri Brewer's cinquefoil

native
Perennial herb

2006 Steve Matson

Potentilla drummondii ssp. breweri Brewer's cinquefoil

native
Perennial herb

2006 Steve Matson

Potentilla bruceae Bruce's cinquefoil

native
Perennial herb

2009 Barry Breckling

1995 Saint Mary's College of California

Potentilla drummondii ssp. bruceae Bruce's cinquefoil

native
Perennial herb

2009 Barry Breckling

1995 Saint Mary's College of California

Potentilla cristae Crested cinquefoil, Crested potentilla

• rare native
Perennial herb

2011 Steve Matson

2018 Julie Kierstead Nelson

2011 Steve Matson

Potentilla drummondii Drummond's cinquefoil

native
Perennial herb

2022 Cynthia Powell

Potentilla drummondii ssp. drummondii Drummond's cinquefoil

native
Perennial herb

2022 Cynthia Powell

Potentilla flabellifolia Fan leaved cinquefoil, High mountain cinquefoil

native
Perennial herb

2021 Mike Russler

Potentilla diversifolia var. diversifolia Blueleaf cinquefoil

native
Perennial herb

Potentilla diversifolia var. diversifolia

2016 Steve Matson

Potentilla glaucophylla var. glaucophylla Blueleaf cinquefoil

native
Perennial herb

Potentilla glaucophylla var. glaucophylla

2016 Steve Matson

Potentilla gracilis Northwest cinquefoil, Slender cinquefoil

native
Perennial herb

2023 Steve Conger

2022 Mike Russler

2019 Bob Sweatt

Potentilla gracilis var. brunnescens Northwest cinquefoil, Slender cinquefoil

native
Perennial herb

2023 Steve Conger

2022 Mike Russler

2019 Bob Sweatt

Potentilla gracilis var. elmeri Elmer's cinquefoil

native
Perennial herb

2022 Mike Russler

Potentilla pectinisecta Elmer's cinquefoil

native
Perennial herb

2022 Mike Russler

Potentilla gracilis var. fastigiata Slender cinquefoil

native
Perennial herb

2021 Mike Russler

2019 Julie Kierstead Nelson

Potentilla gracilis var. flabelliformis Cupform leaf cinquefoil, Slender cinquefoil

native
Perennial herb

2016 Jim Moore

2012 Jean Pawek

Potentilla gracilis var. gracilis Graceful cinquefoil, Slender cinquefoil

native
Perennial herb

2020 Sarah Williams

2019 Susan McDougall

Potentilla grayi Gray's cinquefoil

native
Perennial herb

2016 Mary Merriman

Potentilla hickmanii Hickman's cinquefoil

• rare native
Perennial herb

2007 Neal Kramer

2005 Bob Huettmann

2009 Neal Kramer

Potentilla jepsonii Jepson's cinquefoil

native
Perennial herb

2012 Steve Matson

Potentilla millefolia Cut leaf cinquefoil, Cut leaved cinquefoil, Cutleaf cinquefoil

native
Perennial herb

2019 Glenn Fine

2004 Steve Matson

Potentilla millefolia var. klamathensis Cut leaf cinquefoil, Klamath cinquefoil

native
Perennial herb

2012 Gary A. Monroe

Potentilla morefieldii Morefield's cinquefoil

• rare native
Perennial herb

2004 Steve Matson

Potentilla newberryi Newberry's cinquefoil

• rare native
Perennial herb

2022 Steve Ashcraft

2021 Bob Sweatt

Potentilla norvegica Norwegian cinquefoil

non-native
Annual, Perennial herb

2021 Bob Sweatt

2020 Bob Sweatt

Potentilla pensylvanica Pennsylvania cinquefoil

native
Perennial herb

2012 Steve Matson

Potentilla pensylvanica var. strigosa Pennsylvania cinquefoil

native
Perennial herb

2012 Steve Matson

Potentilla pseudosericea Pennsylvania cinquefoil

native
Perennial herb

2012 Steve Matson

Potentilla pulcherrima Beautiful cinquefoil

• rare native
Perennial herb

2013 Dylan Neubauer

Potentilla recta Sulphur cinquefoil

non-native
Perennial herb

2009 Robert Carr

2018 Scot Loring

Potentilla reptans Creeping cinquefoil

non-native
Perennial herb

2021 Jennifer Mo

2018 Ron Vanderhoff

2007 Luigi Rignanese

Potentilla rimicola Cliff cinquefoil

• rare native
Perennial herb

2009 bill bulger

2005 US Forest Service

Potentilla rimicola var. rimicola Cliff cinquefoil

• rare native
Perennial herb

2009 bill bulger

2005 US Forest Service

Potentilla rivalis Brook cinquefoil

native
Annual, Perennial herb

2020 R.A. Chasey

2014 Jean Pawek

Potentilla wheeleri Kern cinquefoil, Wheeler's cinquefoil

native
Perennial herb

2019 Diane Etchison

2023 Ryan O'Dell

2019 Diane Etchison

Poteridium annuum Western burnet

native
Annual, Perennial herb

2018 Steve Matson

2006 Steve Matson

Poterium sanguisorba Garden burnet

non-native
Perennial herb

2019 Jennifer Mo

2021 David Wolfson

2018 Cynthia Powell

Sanguisorba minor Garden burnet

non-native
Perennial herb

2019 Jennifer Mo

2021 David Wolfson

2018 Cynthia Powell

Sanguisorba minor ssp. muricata Garden burnet

non-native
Perennial herb

2019 Jennifer Mo

2021 David Wolfson

2018 Cynthia Powell

Prenanthella exigua Bright white, Brightwhite, Thorny skeleton plant

native
Annual herb

2022 Steve Matson

2017 Steve Matson

Prenanthes altissima Tall rattlesnakeroot

non-native
Perennial herb

Dodecatheon clevelandii var. gracilis Padre's shooting star

native
Perennial herb

2006 Steve Matson

2020 Aaron Echols

2023 David Strauch

Primula clevelandii Padre's shooting star

native
Perennial herb

2006 Steve Matson

2020 Aaron Echols

2023 David Strauch

Primula clevelandii ssp. patulum Padre's shooting star

native
Perennial herb

2006 Steve Matson

2020 Aaron Echols

2023 David Strauch

Dodecatheon clevelandii ssp. clevelandii Cleveland's shooting star

native
Perennial herb

Dodecatheon clevelandii ssp. clevelandii

2019 Ron Vanderhoff

2015 Rob O'Keefe

2021 Ron Vanderhoff

Primula clevelandii var. clevelandii Cleveland's shooting star

native
Perennial herb

2019 Ron Vanderhoff

2015 Rob O'Keefe

2021 Ron Vanderhoff

Primula clevelandii var. gracilis Padre's shooting star

native
Perennial herb

2020 Mary Conway

2021 Mary Conway

2020 Mary Conway

Primula clevelandii var. insularis Padre's shooting star

native
Perennial herb

2020 Aaron Echols

2019 Adam Chasey

2017 B.J. Dion

Dodecatheon clevelandii ssp. patulum Padre's shooting star

native
Perennial herb

2006 Steve Matson

Dodecatheon clevelandii var. patulum Padre's shooting star

native
Perennial herb

2006 Steve Matson

Primula clevelandii var. patula Padre's shooting star

native
Perennial herb

2006 Steve Matson

Dodecatheon conjugens Bonneville shooting star

native
Perennial herb

2018 Susan McDougall

2015 Daniel Lay (Dodecatheon conjugens)

2016 Keir Morse (Primula conjugens var. viscida)

Primula conjugens Bonneville shooting star

native
Perennial herb

2018 Susan McDougall

2015 Daniel Lay (Dodecatheon conjugens)

2016 Keir Morse (Primula conjugens var. viscida)

Primula conjugens var. conjugens Bonneville shooting star

native
Perennial herb

2018 Susan McDougall

2015 Daniel Lay (Dodecatheon conjugens)

2016 Keir Morse (Primula conjugens var. viscida)

Primula conjugens var. viscida Bonneville shooting star

native
Perennial herb

2018 Susan McDougall

2015 Daniel Lay (Dodecatheon conjugens)

2016 Keir Morse (Primula conjugens var. viscida)

Dodecatheon redolens Scented shooting star

native
Perennial herb

2016 Steve Matson

Primula fragrans Scented shooting star

native
Perennial herb

2016 Steve Matson

Dodecatheon hendersonii Mosquito bill

native
Perennial herb

2020 BLM Redding Field Office

2017 John Game

2022 Jamie Spielmann

Dodecatheon hendersonii var. parvulum Mosquito bill

native
Perennial herb

2020 BLM Redding Field Office

2017 John Game

2022 Jamie Spielmann

Primula hendersonii Mosquito bill

native
Perennial herb

2020 BLM Redding Field Office

2017 John Game

2022 Jamie Spielmann

Dodecatheon jeffreyi Sierra shooting star

native
Perennial herb

2021 Mike Russler

2019 Saskia Raether

2021 Julie A. Kierstead

Primula jeffreyi Sierra shooting star

native
Perennial herb

2021 Mike Russler

2019 Saskia Raether

2021 Julie A. Kierstead

Dodecatheon pulchellum Beautiful shooting star, Dark throat shooting star

• rare native
Perennial herb

2008 Steve Matson

Dodecatheon pulchellum ssp. pulchellum Beautiful shooting star, Dark throat shooting star

• rare native
Perennial herb

2008 Steve Matson

Dodecatheon pulchellum ssp. red Beautiful shooting star, Dark throat shooting star

• rare native
Perennial herb

2008 Steve Matson

Dodecatheon pulchellum var. pulchellem Beautiful shooting star, Dark throat shooting star

• rare native
Perennial herb

2008 Steve Matson

Dodecatheon pulchellum var. pulchellum Beautiful shooting star, Dark throat shooting star

• rare native
Perennial herb

2008 Steve Matson

Dodecatheon pulchellum var. shoshonense Beautiful shooting star, Dark throat shooting star

• rare native
Perennial herb

2008 Steve Matson

Primula pauciflora Beautiful shooting star, Dark throat shooting star

• rare native
Perennial herb

2008 Steve Matson

Primula pauciflora var. pauciflora Beautiful shooting star, Dark throat shooting star

• rare native
Perennial herb

2008 Steve Matson

Dodecatheon subalpinum Sierra shooting star

native
Perennial herb

2016 John Doyen

2019 Mary Merriman

Primula suffrutescens Sierra primrose, Sierran primrose

native
Perennial herb

2021 R.A. Chasey

2014 Steve Matson

2020 Bob Sweatt

Dodecatheon alpinum Alpine shooting star

native
Perennial herb

2019 Cynthia Powell

2020 Bob Sweatt

2021 Mike Russler

Dodecatheon alpinum ssp. majus Alpine shooting star

native
Perennial herb

2019 Cynthia Powell

2020 Bob Sweatt

2021 Mike Russler

Primula tetrandra Alpine shooting star

native
Perennial herb

2019 Cynthia Powell

2020 Bob Sweatt

2021 Mike Russler

Primula veris Cowslip primrose

non-native
Perennial herb

Proboscidea althaeifolia Desert devil's claw, Desert unicorn plant

• rare native
Perennial herb

2012 Keir Morse

Proboscidea louisianica Ram's horn

non-native
Annual herb

0000 Zoya Akulova-Barlow

2014 Neal Kramer

2020 Robert Byrnes

Proboscidea louisianica ssp. louisianica Common devil's claw, Ram's horn

non-native
Annual herb

Proboscidea louisianica ssp. louisianica

0000 Zoya Akulova-Barlow

2012 Shari Gardner

2014 Neal Kramer

Proboscidea lutea Yellow devil's claw

non-native
Annual herb

2022 Brad Cook

2011 Jan Cretcher

2013 Debra L. Cook

Proboscidea parviflora Doubleclaw

native
Annual herb

2009 Barry Rice

Disporum hookeri Drops of gold

native
Perennial herb

2021 Norma Solarz

2021 Cara Wilcox

2019 Stacie Wolny

Prosartes hookeri Drops of gold

native
Perennial herb

2021 Norma Solarz

2021 Cara Wilcox

2019 Stacie Wolny

Prosartes hookeri var. oregana Drops of gold

native
Perennial herb

2021 Norma Solarz

2021 Cara Wilcox

2019 Stacie Wolny

Prosartes parvifolia Siskiyou bells

• rare native
Perennial herb

2010 Ray Collett

Disporum smithii Largeflower fairybells

native
Perennial herb

2021 Steve Matson

Prosartes smithii Largeflower fairybells

native
Perennial herb

2021 Steve Matson

Prosopis chilensis Algarrobo

non-native
Tree, Shrub

Prosopis glandulosa Honey mesquite

native
Tree, Shrub

2022 Daniel Dow

2022 Mike Russler

2015 Diane Etchison

Prosopis glandulosa var. glandulosa Honey mesquite

native
Tree, Shrub

2022 Daniel Dow

2022 Mike Russler

2015 Diane Etchison

Prosopis articulata Velvet mesquite

non-native
Tree, Shrub

2002 James B. Gratiot

2017 Zoya Akulova

2015 Richard Spellenberg

Prosopis juliflora Velvet mesquite

non-native
Tree, Shrub

2002 James B. Gratiot

2017 Zoya Akulova

2015 Richard Spellenberg

Prosopis juliflora var. glandulosa Velvet mesquite

non-native
Tree, Shrub

2002 James B. Gratiot

2017 Zoya Akulova

2015 Richard Spellenberg

Prunella vulgaris Common selfheal, Self heal, Selfheal

native
Perennial herb

2020 Bob Sweatt

2014 Christopher P. Cook

Prunella vulgaris ssp. lanceolata Lance leaf self heal, Mountain selfheal

native
Perennial herb

2003 Steve Matson

2022 Zoya Akulova-Barlow

Prunella vulgaris var. lanceolata Lance leaf self heal, Mountain selfheal

native
Perennial herb

2003 Steve Matson

2022 Zoya Akulova-Barlow

Prunella vulgaris var. vulgaris Self heal

non-native
Perennial herb

2016 R. Adam Chasey

2019 Chasey

2022 Dana York

Prunus americana American plum

non-native
Tree

2016 Trent M. Draper

Prunus andersonii Desert peach

native
Tree, Shrub

2023 Bob Steele

2022 Bob Sweatt

2008 Neal Kramer

Prunus angustifolia Chickasaw plum

native
Tree

2018 Susan McDougall

Prunus armeniaca Apricot

non-native
Tree

2014 John Malpas

2005 Luigi Rignanese

Prunus avium Sweet cherry

non-native
Tree

2022 Randy Huey

2005 Dr. Amadej Trnkoczy

Prunus caroliniana Carolina laurelcherry

non-native
Tree

2007 Neal Kramer

Prunus cerasifera Cherry plum

• invasive non-native
Tree

2021 MCOSD EDRR

2019 MCOSD EDRR

2015 jamie smith

Prunus cerasifera var. pissardii Cherry plum

• invasive non-native
Tree

2021 MCOSD EDRR

2019 MCOSD EDRR

2015 jamie smith

Prunus domestica European plum

non-native
Tree

2005 Luigi Rignanese

Prunus dulcis Domestic almond, Sweet almond

non-native
Tree

2012 Wes Gray

2022 Donald Burk

2021 David popp

Prunus dulcis var. dulcis Domestic almond, Sweet almond

non-native
Tree

2012 Wes Gray

2022 Donald Burk

2021 David popp

Prunus emarginata Bitter cherry

native
Tree, Shrub

2020 Belinda Lo

2004 Steve Matson

2006 Steve Matson

Prunus eremophila Desert plum

• rare native
Shrub

2012 James M. Andre

2004 James M. Andre

2010 James M. Andre

Prunus fasciculata Desert almond, Desert range almond

native
Shrub

2015 Steve Matson

2019 Diane Etchison

2015 Steve Matson

Prunus fasciculata var. fasciculata Desert almond

native
Shrub

2012 Steve Matson

2015 Steve Matson

Prunus fasciculata var. punctata Desert almond, Sand almond

• rare native
Shrub

2024 Mike Russler

Prunus fremontii Desert apricot

native
Tree, Shrub

2019 Matt Berger

2013 James Gonsman

2017 Diane Etchison

Prunus ilicifolia Holly leaf cherry, Holly leaved cherry, Hollyleaf cherry

native
Tree, Shrub

2022 David Strauch

2019 Marisa Persaud

2019 Bryant Baker

Prunus ilicifolia ssp. ilicifolia Holly leaf cherry, Hollyleaf cherry

native
Tree, Shrub

2018 David Greenberger

2019 Ron Vanderhoff

2020 James Gonsman

Prunus ilicifolia ssp. lyonii Catalina cherry, Hollyleaf cherry, Island cherry

native
Tree

2022 Ron Vanderhoff

2020 David Greenberger

Prunus laurocerasus Cherry laurel

non-native
Tree, Shrub

2021 Nikita Yakubovich

2017 Julian Geoghegan

Prunus lusitanica Portugal laurel

non-native
Tree

2007 Luisa Arana Navaridas

Prunus lusitanica var. azorica Portugal laurel

non-native
Tree

2007 Luisa Arana Navaridas

Prunus mahaleb Mahaleb cherry, St Lucie's Cherry

non-native
Tree

2006 Dr. Amadej Trnkoczy

2014 Stefano Doglio

Prunus pensylvanica Pin cherry

non-native
Tree, Shrub

Prunus persica Peach

non-native
Tree

2023 Ron Vanderhoff

2015 Keir Morse

2021 Ron Vanderhoff

Prunus persica var. nucipersica Peach

non-native
Tree

2023 Ron Vanderhoff

2015 Keir Morse

2021 Ron Vanderhoff

Prunus persica var. platycarpa Peach

non-native
Tree

2023 Ron Vanderhoff

2015 Keir Morse

2021 Ron Vanderhoff

Prunus serotina Black cherry

non-native
Tree, Shrub

Prunus serrulata Japanese flowering cherry

non-native
Tree

2002 University of California Museum of Paleontology

Prunus subcordata Klamath plum, Sierra plum

native
Tree, Shrub

2020 David Greenberger

Kevin Hintsa

2020 David Greenberger

Prunus tomentosa Nanking cherry

non-native
Tree

2004 Nick Kurzenko

Nick Kurzenko

Prunus triloba Flowering plum

non-native
Tree

2007 Louis-M. Landry

2004 Nick Kurzenko

Prunus virginiana Chokecherry

native
Tree, Shrub

2005 Steve Matson

2021 Arlee Montalvo

Prunus virginiana var. virginiana Chokecherry

native
Tree, Shrub

2005 Steve Matson

2021 Arlee Montalvo

Prunus virginiana var. demissa Chokecherry, Western choke cherry, Western chokecherry

native
Tree, Shrub

2005 Steve Matson

2020 Susan McDougall

Prunus virginiana var. melanocarpa Chokecherry, Western choke cherry, Western chokecherry

native
Tree, Shrub

2005 Steve Matson

2020 Susan McDougall

Psathyrotes annua Annual psathyrotes

native
Annual herb

2021 Bob Sweatt

2019 Matt Berger

2021 Bob Sweatt

Psathyrotes ramosissima Velvet rosette, Velvet turtleback

native
Annual, Perennial herb

2020 Matt Berger

2020 David Greenberger

2005 Steve Matson

Pseudobahia bahiifolia Hartweg's golden sunburst

• rare native
Annual herb

2022 Steve Matson

Pseudobahia heermannii Foothill sunburst, Heermann's golden sunburst

native
Annual herb

2019 Jacob Smith

Pseudobahia peirsonii San joaquin adobe sunburst

• rare native
Annual herb

2016 Steve Matson

Pseudobraunia californica California pseudobraunia moss

native
Moss

HEDWIGIACEAE

Pseudognaphalium beneolens Cudweed

native
Perennial herb

2021 BLM Redding Field Office

2021 Mike Russler

2021 R.A. Chasey

Pseudognaphalium biolettii Two-color rabbit-tobacco

native
Perennial herb

2019 David Greenberger

2019 Ron Vanderhoff

Gnaphalium californicum Ladies' tobacco

native
Annual, Perennial herb

2019 Gary McDonald

2020 Steven M Norris

2021 Ron Vanderhoff

Pseudognaphalium californicum Ladies' tobacco

native
Annual, Perennial herb

2019 Gary McDonald

2020 Steven M Norris

2021 Ron Vanderhoff

Pseudognaphalium canescens Wright's cudweed

native
Perennial herb

2005 Laura Ann Eliassen

2005 Keir Morse

2010 Gary A. Monroe

Pseudognaphalium leucocephalum White cudweed, White rabbit tobacco

• rare native
Perennial herb

2021 Aaron Echols

Gnaphalium luteo-album Jersey cudweed

non-native
Annual herb

2021 Ron Vanderhoff

2019 Diane Etchison

2021 Ron Vanderhoff

Pseudognaphalium luteoalbum Jersey cudweed

non-native
Annual herb

2021 Ron Vanderhoff

2019 Diane Etchison

2021 Ron Vanderhoff

Pseudognaphalium macounii Macoun's everlasting

native
Annual, Perennial herb

2011 Louis-M. Landry

Pseudognaphalium viscosum Macoun's everlasting

native
Annual, Perennial herb

2011 Louis-M. Landry

Pseudognaphalium microcephalum Wright's cudweed

native
Perennial herb

2020 Ron Vanderhoff

2022 David Strauch

2019 Ron Vanderhoff

Pseudognaphalium ramosissimum Pink cudweed

native
Annual, Biennial herb

2021 R.A. Chasey

2017 Gary McDonald

Gnaphalium stramineum Cottonbatting plant

native
Perennial herb

2017 Gary McDonald

Pseudognaphalium stramineum Cottonbatting plant

native
Perennial herb

2017 Gary McDonald

Gnaphalium thermale Small headed cudweed

native
Perennial herb

2019 David Greenberger

2021 David popp

2022 R.A. Chasey

Pseudognaphalium thermale Small headed cudweed

native
Perennial herb

2019 David Greenberger

2021 David popp

2022 R.A. Chasey

Antirrhinum cyathiferum Deep canyon snapdragon

• rare native
Annual herb

2023 Keir Morse

2011 Aaron Schusteff

2023 Keir Morse

Pseudorontium cyathiferum Deep canyon snapdragon

• rare native
Annual herb

2023 Keir Morse

2011 Aaron Schusteff

2023 Keir Morse

Pseudostellaria sierrae Sierra starwort

• rare native
Perennial herb (rhizomatous)

2004 Dean Wm. Taylor

2008 Sierra Pacific Industries

2012 Dee E. Warenycia

Pseudotrillium rivale Siskiyou wakerobin

native
Perennial herb

2023 Steve Conger

2024 Steve Conger

2023 Dana York

Trillium rivale Siskiyou wakerobin

native
Perennial herb

2023 Steve Conger

2024 Steve Conger

2023 Dana York

Pseudotsuga macrocarpa Bigcone douglas fir, Bigcone spruce

native
Tree

2023 Bryant Baker

2018 Lynn Sweet

2018 Janith Johnson

Pseudotsuga menziesii Douglas fir

native
Tree

2022 Ryan O'Dell

2023 Ryan O'Dell

2023 David popp

Pseudotsuga menziesii ssp. glauca Douglas fir

native
Tree

2022 Ryan O'Dell

2023 Ryan O'Dell

2023 David popp

Pseudotsuga menziesii var. glauca Douglas fir

native
Tree

2022 Ryan O'Dell

2023 Ryan O'Dell

2023 David popp

Pseudotsuga menziesii var. menziesii Douglas fir, Douglas spruce, False hemlock

native
Tree

2020 David Krause

2022 David popp

2024 David popp

Psidium cattleianum Strawberry guava

non-native
Tree, Shrub

Psidium guajava Guava

non-native
Tree, Shrub

2010 Moorea Biocode

Psilocarphus brevissimus Short woollyheads, Woolly marbles

native
Annual herb

2018 David Greenberger

2020 R.A. Chasey

2022 Bob Sweatt

Psilocarphus brevissimus var. brevissimus Short woollyheads, Woolly heads, Woolly marbles

native
Annual herb

Psilocarphus brevissimus var. brevissimus

2020 R.A. Chasey

2021 David popp

2020 Ron Vanderhoff

Psilocarphus chilensis Round woolly marbles

native
Annual herb

2020 Dick Rawson

2024 Ellen Uhler

Psilocarphus elatior Meadow woollyheads, Tall woolly marbles

• rare native
Annual herb

2006 Gerald Carr

Psilocarphus oregonus Oregon woolly marbles, Oregon woollyheads, Woolly marbles

native
Annual herb

2017 David Greenberger

2022 Dianne Lake

2022 Donald Burk

Psilocarphus tenellus Slender woolly marbles, Slender woollyheads

native
Annual herb

2006 Steve Matson

2018 Ron Vanderhoff

Psilocarphus tenellus var. tenellus Slender woolly marbles, Slender woollyheads

native
Annual herb

2006 Steve Matson

2018 Ron Vanderhoff

Psilostrophe cooperi Cooper's paper daisy, Paper flower, Paperflower

native
Shrub

2006 Steve Matson

Psilotum nudum Whisk fern

non-native
Perennial herb

PSILOTACEAE

2010 Barry Rice

2017 Ron Vanderhoff

Psorothamnus arborescens California dalea, Mojave indigo bush, Mojave indigobush

native
Shrub

2023 Bob Steele

2019 Ron Vanderhoff

2020 Steve Matson

Psorothamnus arborescens var. arborescens Mojave indigo bush, Mojave indigobush

• rare native
Shrub

Psorothamnus arborescens var. arborescens

2005 Michelle Cloud-Hughes

2017 John Doyen

2018 Neal Kramer

Psorothamnus arborescens var. minutifolius Johnson's indigobush, Little leaved mojave indigo bush

native
Shrub

Psorothamnus arborescens var. minutifolius

2010 Steve Matson

2022 Steve Matson

2010 Steve Matson

Psorothamnus arborescens var. simplicifolius California indigo bush, California indigobush

native
Shrub

Psorothamnus arborescens var. simplicifolius

2017 Ron Vanderhoff

2018 Ron Vanderhoff

1995 Saint Mary's College of California

Psorothamnus emoryi Dyebush, Emory dalea, Emory indigobush

native
Shrub

2019 Stacie Wolny

2021 Colin Barrows

2020 Diane Etchison

Psorothamnus fremontii Fremont indigobush, Fremont's dalea, Fremont's indigo bush

native
Shrub

2006 James M. Andre

1992 Gary A. Monroe

Psorothamnus fremontii var. attenuatus Fremont's dalea, Fremont's indigo bush

• rare native
Shrub

2006 Dr. James D. Adams

2019 Neal Kramer

Psorothamnus fremontii var. fremontii Fremont's dalea, Fremont's indigo bush

native
Shrub

2005 James M. Andre

2010 Neal Kramer

Psorothamnus polydenius Dotted dalea, Nevada dalea, Nevada indigo bush

native
Shrub

2019 Richard Spjut

2020 R.A. Chasey

2022 Steve Matson

Psorothamnus schottii Indigo bush, Schott indigobush, Schott's dalea

native
Shrub

2023 Keir Morse

2020 David Greenberger

Psorothamnus spinosus Smoke tree, Smoketree

native
Tree, Shrub

2021 Ron Vanderhoff

2020 Deborah Dozier

2021 Jonathan Froines

Ptelea crenulata California hoptree, Hop tree, Western hoptree

native
Tree, Shrub

2022 BOB CASE

2021 Suzanne L. Weakley

2018 Bill Haley

Pteridium aquilinum Western brackenfern

native
Fern

2019 Ron Vanderhoff

2019 Cynthia Powell

2020 Cara Wilcox

Pteridium aquilinum var. decompositum Western brackenfern

native
Fern

2019 Ron Vanderhoff

2019 Cynthia Powell

2020 Cara Wilcox

Pteridium aquilinum var. latiusculum Western brackenfern

native
Fern

2019 Ron Vanderhoff

2019 Cynthia Powell

2020 Cara Wilcox

Pteridium aquilinum var. pubescens Hairy brackenfern, Western bracken fern

native
Fern

2019 Ron Vanderhoff

2022 Bob Sweatt

Pteris cretica Cretan brake

non-native
Fern

2021 Heather Brady DeQuincy

2022 Elizabeth Merritt

2022 El Byrne

Pterocarya stenoptera Chinese wingnut

non-native

2020 Pete Lash

2010 Zoya Akulova

Pterospora andromedea Pine drops, Pine drops, Woodland pinedrops

native
Perennial herb (parasitic)

2006 Steve Matson

2019 Bob Sweatt

2020 Joey Santore

Pterostegia drymarioides Fairy mist, Woodland threadstem

native
Annual herb

2016 Steve Matson

2005 Steve Matson

Ptilidium californicum Pacific fuzz wort

• rare native
Liverwort

PTILIDIACEAE

2012 Martin J. Lenz

2013 Scot Loring

Puccinellia distans European alkali grass, Weeping alkaligrass

non-native
Perennial grass

2011 Steve Matson

Puccinellia howellii Howell's alkali grass, Howell's alkaligrass

• rare native
Perennial grass

2022 Matt Berger

2019 Matt Berger

Puccinellia lemmonii Lemmon's alkali grass, Lemmon's alkaligrass

native
Perennial grass

2011 Steve Matson

Puccinellia nutkaensis Alaska alkali grass, Nootka alkaligrass

native
Perennial grass

2020 John Rawlings

2019 Patrick Furtado

Puccinellia nuttalliana Nuttall's alkali grass, Nuttall's alkaligrass

native
Perennial grass

2008 Steve Matson

Puccinellia simplex California alkaligrass

• rare native
Annual grass

2019 John Rawlings

2022 Denise Defreese

Pulicaria paludosa Spanish false fleabane

non-native
Annual, Perennial herb

2011 Keir Morse

2012 Keir Morse

2019 Ron Vanderhoff

Punica granatum Pomegranate

non-native
Shrub

2022 Ron Vanderhoff

2002 James B. Gratiot

Punica granatum var. nana Pomegranate

non-native
Shrub

2022 Ron Vanderhoff

2002 James B. Gratiot

Purshia mexicana Mexican cliffrose

native
Shrub

2023 Bob Steele

2000 Gary A. Monroe

2015 Ron Wolf

Purshia mexicana var. stansburyana Stansbury's antelope brush

native
Shrub

2013 Steve Matson

Purshia stansburyana Stansbury's antelope brush

native
Shrub

2013 Steve Matson

Purshia tridentata Antelope bitterbrush, Antelope bush, Bitterbrush

native
Shrub

2020 Bob Sweatt

2018 Stefan Eggenberg

2005 Steve Matson

Purshia glandulosa Antelope brush, Desert bitterbrush

native
Shrub

2017 Thomas Egan

2019 Sonie Sampson

2012 Steve Matson

Purshia tridentata var. glandulosa Antelope brush, Desert bitterbrush

native
Shrub

2017 Thomas Egan

2019 Sonie Sampson

2012 Steve Matson

Purshia tridentata var. tridentata Antelope bitterbrush

native
Shrub

2019 Eric Tattersall

2006 Steve Matson

Pycnanthemum californicum California mint, Mountain mint, Sierra mint

native
Perennial herb

2012 Ron Vanderhoff

2019 Julie A. Kierstead

2016 Ron Vanderhoff

Pyracantha angustifolia Narrowleaf firethorn

• invasive non-native
Shrub

2018 Abbot Chambers

2019 Abbot Chambers

2018 Chris Qian

Pyracantha coccinea Scarlet firethorn

• invasive non-native
Shrub

2019 Randy Huey

2005 Luigi Rignanese

Pyracantha crenulata Nepalese firethorn

• invasive non-native
Shrub

2022 Morgan Stickrod

2018 Joe DiTomaso

Pyracantha fortuneana Chinese firethorn

non-native
Shrub

2021 Fred Watson

2018 Ron Vanderhoff

2023 Ron Vanderhoff

Pyracantha koidzumii Taiwan firethorn

non-native
Shrub

2018 Ron Vanderhoff

2019 Ron Vanderhoff

2018 Ron Vanderhoff

Pyrola aphylla Leafless wintergreen

native
Perennial herb

2020 Mark Kircher

2020 Joey Santore

Pyrola asarifolia Bog wintergreen, Liverleaf wintergreen

native
Perennial herb

2018 David Greenberger

2023 Mary Ann Machi

2007 Gerald Carr

Pyrola asarifolia ssp. asarifolia Bog wintergreen, Liverleaf wintergreen

native
Perennial herb

2005 Steve Matson

2010 Steve Matson

Pyrola asarifolia ssp. bracteata Bog wintergreen, Pink wintergreen

native
Perennial herb

2007 Gerald Carr

Pyrola chlorantha Green flowered wintergreen, Greenflowered wintergreen

• rare native
Shrub (stem succulent)

2013 Dr. Amadej Trnkoczy

2012 RT Hawke

2013 Dr. Amadej Trnkoczy

Pyrola dentata Toothed wintergreen

native
Perennial herb

2011 Steve Matson

2021 Mike Russler

2021 R.A. Chasey

Pyrola minor English wintergreen, Lesser wintergreen, Snowline wintergreen

native
Perennial herb

2021 Mike Russler

2022 Bob Sweatt

Pyrola picta White veined shinleaf, White veined wintergreen, Whitevein shinleaf

native
Perennial herb

2015 Steve Matson

Pyrrocoma apargioides Alpine pyrrocoma, Alpineflames

native
Perennial herb

2006 Steve Matson

2003 Steve Matson

2006 Steve Matson

Pyrrocoma carthamoides var. cusickii Cusick's columbia pyrrocoma, Largeflower goldenweed

native
Perennial herb

2020 Donald Burk

2018 Scot Loring

Pyrrocoma lanceolata Intermountain pyrrocoma, Lanceleaf goldenweed

native
Perennial herb

2023 Mike Russler

Pyrrocoma lanceolata var. lanceolata Intermountain pyrrocoma, Lanceleaf goldenweed

native
Perennial herb

2023 Mike Russler

Pyrrocoma lucida Sticky goldenweed, Sticky pyrrocoma

• rare native
Perennial herb

2022 Anna Burns

2016 David popp

2009 Aaron Arthur

Pyrrocoma racemosa Clustered goldenweed, Racemose pyrrocoma

native
Perennial herb

2007 Steve Matson

Pyrrocoma racemosa var. sessiflora Clustered goldenweed, Racemose pyrrocoma

native
Perennial herb

2007 Steve Matson

Pyrrocoma racemosa var. congesta Clustered goldenweed, Del norte pyrrocoma

• rare native
Perennial herb

2007 Keir Morse

Pyrrocoma racemosa var. paniculata Clustered goldenweed, Panicled pyrrocoma

native
Perennial herb

2021 Mike Russler

2011 Steve Matson

Pyrrocoma racemosa var. pinetorum Clustered goldenweed, Pine pyrrocoma

• rare native
Perennial herb

2020 joaquin hale

Pyrrocoma racemosa var. racemosa Clustered goldenweed, Racemose pyrrocoma

native
Perennial herb

2018 Jake Ruygt

Pyrrocoma racemosa var. sessiliflora Clustered goldenweed, Racemose pyrrocoma

native
Perennial herb

2007 Steve Matson

2014 Steve Matson

2007 Steve Matson

Pyrrocoma uniflora Plantain goldenweed, Single headed pyrrocoma

native
Perennial herb

2008 Steve Matson

Pyrrocoma uniflora var. gossypina Bear valley pyrrocoma, Plantain goldenweed

• rare native
Perennial herb

2008 Thomas Stoughton

Rick York and CNPS

2005 Chris Wagner, SBNF

Pyrrocoma uniflora var. uniflora Plantain goldenweed, Single headed pyrrocoma

native
Perennial herb

2008 Steve Matson

Pyrus calleryana Callery pear

• invasive non-native
Tree

2021 Randy Huey

2022 Donald Burk

2017 Marabeth Grahame

Pyrus communis Common pear

non-native
Tree

2023 Donald Burk

Quercus agrifolia California live oak, Coast live oak

native
Tree

2019 Patrick Furtado

2022 Andy Ford

2018 Marcyn Del Clements

Quercus agrifolia var. agrifolia California live oak, Coast live oak

native
Tree

2023 Ron Vanderhoff

2022 Ron Vanderhoff

2021 Al Keuter

Quercus agrifolia var. oxyadenia Coast live oak, Sharpacorn oak

native
Tree

2017 Michelle Tollett

2020 David Greenberger

2009 Anna Bennett

Quercus alba White oak

non-native
Tree

Quercus berberidifolia Inland scrub oak

native
Tree

2022 David Strauch

2020 Cynthia Keiser

Quercus cerris European turkey oak

non-native
Tree

Quercus chrysolepis Canyon live oak, Canyon oak, maul oak, goldcup oak, Gold cup oak

native
Tree

2017 Aaron Sunshine

2020 R.A. Chasey

2018 joaquin hale

Quercus wilcoxii Canyon live oak, Canyon oak, maul oak, goldcup oak, Gold cup oak

native
Tree

2017 Aaron Sunshine

2020 R.A. Chasey

2018 joaquin hale

Quercus cornelius-mulleri Desert scrub oak, Muller oak

native
Tree

2019 Susan McDougall

2020 Matt Berger

Quercus douglasii Blue oak

native
Tree

2023 Ryan O'Dell

2018 Gary McDonald

2020 Charles Russell

Quercus dumosa Coastal sage scrub oak, Nuttall's scrub oak

• rare native
Shrub

2023 Ron Vanderhoff

2022 Ron Vanderhoff

2012 Ron Vanderhoff

Quercus durata Leather oak

native
Shrub

2019 Cynthia Powell

2019 David popp

2019 Susan McDougall

Quercus durata var. durata Leather oak

native
Shrub

2022 Hunter Breck

2020 Charles Russell

2020 R.A. Chasey

Quercus durata var. gabrielensis San Gabriel Mtns. leather oak

• rare native
Shrub

2019 Manzanita Dictionary

2013 Michael Long

Quercus engelmannii Engelmann oak

• rare native
Tree

2022 Ron Vanderhoff

2020 Ron Vanderhoff

Quercus garryana Garry's oak, Oregon oak, garry oak, Oregon white oak

native
Tree

2021 Isaac Kreger

2019 Susan McDougall

2023 Michele Hammond

Quercus garryana var. breweri Brewer's oak, Garry's oak, Oregon oak

native
Tree

2022 Ryan O'Dell

2020 Julie A. Kierstead

2018 David popp

Quercus garryana var. garryana Oregon oak, Oregon white oak

native
Tree

2023 Michele Hammond

2021 R.A. Chasey

Quercus garryana var. semota Oregon white oak

native
Tree

2016 David popp

2018 Richard Spjut

2023 Aidan Marshall

Quercus ilex Holly oak

non-native
Tree

2022 Jennifer Mo

2013 Ron Vanderhoff

2020 Ron Vanderhoff

Quercus ilex ssp. ilex Holly oak

non-native
Tree

2022 Jennifer Mo

2013 Ron Vanderhoff

2020 Ron Vanderhoff

Quercus ilex ssp. rotundifolia Holly oak

non-native
Tree

2022 Jennifer Mo

2013 Ron Vanderhoff

2020 Ron Vanderhoff

Quercus john-tuckeri Tucker oak, Tucker's oak

native
Tree

2019 Richard Spjut

2015 Keir Morse

2019 Richard Spjut

Quercus kelloggii Black oak, California black oak

native
Tree

2020 Kim Cabrera

2021 Emily Sluiman

2023 Ryan O'Dell

Quercus lobata California white oak, Valley oak

native
Tree

2023 Helen Hancock

2021 Cynthia Powell

2023 Suzanne L. Weakley

Quercus macrocarpa Bur oak

non-native
Tree, Shrub

2012 Ramona Robison

2010 Barry Breckling

2008 Louis-M. Landry

Quercus marilandica Blackjack oak

non-native
Tree

Quercus nigra Water oak

non-native
Tree

Quercus pacifica Channel island scrub oak, Island scrub oak

• rare native
Shrub

2021 Chris Leslie

2020 Susan McDougall

2020 David Greenberger

Quercus palmeri Desert oak, Palmer's oak, Scrub oak

native
Shrub

2022 Cynthia Powell

2019 R.A. Chasey

2022 Diane Renshaw

Quercus palustris Pin oak

non-native
Tree

2007 Louis-M. Landry

2016 Zoya Akulova

Quercus parvula Coast oak, Santa cruz island oak

native
Tree

2022 John Rawlings

2021 Hunter Breck

2021 Rowena Forest

Quercus parvula var. parvula Santa cruz island oak

• rare native
Tree

2006 Adonis (Don) Tate

Quercus parvula var. shrevei Shreve oak, Shreve's oak

native
Tree

2020 R.A. Chasey

2020 John Rawlings

2019 Cynthia Powell

Quercus parvula var. tamalpaisensis Tamalpais oak

• rare native
Shrub

2021 Hunter Breck

2021 Rowena Forest

Quercus robur English oak

non-native
Tree

2008 Louis-M. Landry

Quercus rugosa Netleaf oak

non-native
Tree

Quercus sadleriana Deer oak, Sadler oak

native
Shrub

2018 Julie Kierstead Nelson

2022 Dana York

2019 Belinda Lo

Quercus shumardii Shumard's oak

non-native
Tree

Quercus stellata Post oak

non-native
Tree

Quercus suber Cork oak

non-native
Tree, Shrub

2024 Diana Wahl

2013 Ramona Robison

2019 Julian Geoghegan

Quercus tomentella Island live oak, Island oak

• rare native
Tree

2020 Susan McDougall

Quercus turbinella Grey oak, Shrub live oak, Sonoran scrub oak

• rare native
Shrub

2020 David Greenberger

2016 James Gonsman

2013 Jean Pawek

Quercus vacciniifolia Huckleberry oak

native
Shrub

2003 Steve Matson

2010 Steve Matson

2022 Steve Matson

Quercus virginiana Live oak

non-native
Tree

2020 Ron Vanderhoff

2019 Ron Vanderhoff

Quercus wislizeni Interior live oak, chapparal oak

native
Tree, Shrub

2019 Ron Vanderhoff

2019 Barbara Brydolf

Quercus wislizeni ssp. frutescens Interior live oak, chapparal oak

native
Tree, Shrub

2019 Ron Vanderhoff

2019 Barbara Brydolf

Quercus wislizeni var. frutescens Bush interior live oak, Chaparral oak, Live oak

native
Tree, Shrub

2019 Ron Vanderhoff

2021 Ron Vanderhoff

Quercus wislizeni var. wislizeni Interior live oak

native
Tree, Shrub

2018 Jay Chamberlain

2019 Jay Chamberlain

2020 Susan McDougall

Quercus Xacutidens Torrey's hybrid oak

native
Shrub, Tree

2017 Diane Etchison

2004 Charles E. Jones

Quercus alvordiana Alvord oak, Alvord's oak

native
Tree

2022 Ryan O'Dell

2019 Richard Spjut

2010 Neal Kramer

Quercus Xalvordiana Alvord oak, Alvord's oak

native
Tree

2022 Ryan O'Dell

2019 Richard Spjut

2010 Neal Kramer

Quercus Xchasei

native
Shrub, Tree

2022 Zachariah Jordan

2018 Patty Ciesla

Quercus Xganderi

native
Shrub, Tree

2022 Zachariah Jordan

2018 Patty Ciesla

Quercus Xmacdonaldii Macdonald oak, Macdonald's oak

native
Tree

2015 Keir Morse

Quercus Xmorehus Oracle oak

native
Tree

2019 R.A. Chasey

2022 Ron Vanderhoff

Quillaja saponaria Soapbark

non-native

2011 Dr. Mark S. Brunell

Rafinesquia californica California chicory, California plumseed

native
Annual herb

2019 David Greenberger

2021 Ron Vanderhoff

2017 Steve Matson

Rafinesquia neomexicana California chicory, Desert chicory, New mexico plumseed

native
Annual herb

2022 Mike Russler

Raillardella argentea Silky raillardella

native
Perennial herb

2022 Mike Russler

2020 Bob Sweatt

2022 Mike Russler

Raillardella pringlei Showy raillardella

• rare native
Perennial herb (rhizomatous)

2020 David Greenberger

2019 Steve Matson

2019 John Game

Raillardella scaposa Green leaved raillardella, Stem raillardella

native
Perennial herb

2019 R.A. Chasey

2009 Steve Matson

2005 Steve Matson

Ranunculus acris Acrid buttercup, Tall buttercup

non-native
Perennial herb

2005 Dr. Amadej Trnkoczy

2006 Dr. Amadej Trnkoczy

2008 Louis-M. Landry

Ranunculus acris ssp. acris Acrid buttercup, Tall buttercup

non-native
Perennial herb

2005 Dr. Amadej Trnkoczy

2006 Dr. Amadej Trnkoczy

2008 Louis-M. Landry

Ranunculus alismifolius Alisma leaved buttercup, Common water plantain buttercup, Plantainleaf buttercup

native
Perennial herb

2018 Gerald Carr

2003 Steve Matson

2018 Gerald Carr

Ranunculus alismifolius var. montanus Alisma leaved buttercup, Common water plantain buttercup, Plantainleaf buttercup

native
Perennial herb

2018 Gerald Carr

2003 Steve Matson

2018 Gerald Carr

Ranunculus alismifolius var. alismellus Plantainleaf buttercup, Slender buttercup, Small water plantain buttercup

native
Perennial herb

2018 Richard Beebe

2020 Susan McDougall

2008 Steve Matson

Ranunculus alismifolius var. alismifolius Plantainleaf buttercup, Water plantain buttercup

native
Perennial herb

Ranunculus alismifolius var. alismifolius

2021 Alaine Arslan

2023 Mike Russler

Ranunculus andersonii Anderson's buttercup

native
Perennial herb

2012 Steve Matson

2017 Steve Matson

Ranunculus andersonii var. andersonii Anderson's buttercup

native
Perennial herb

2012 Steve Matson

2017 Steve Matson

Ranunculus aquatilis white water buttercup

native
Perennial herb (aquatic)

2005 Steve Matson

2021 Bob Sweatt

Ranunculus aquatilis var. aquatilis White water butter cup

native
Perennial herb (aquatic)

2020 Bob Sweatt

2020 R.A. Chasey

Ranunculus aquatilis var. capillaceus white water butter cup

native
Perennial herb (aquatic)

2016 Ken Lunders

2007 Steve Matson

2022 Jonathan Widdicombe

Ranunculus aquatilis var. diffusus white water butter cup

native
Perennial herb (aquatic)

2016 Ken Lunders

2007 Steve Matson

2022 Jonathan Widdicombe

Ranunculus longirostris white water butter cup

native
Perennial herb (aquatic)

2016 Ken Lunders

2007 Steve Matson

2022 Jonathan Widdicombe

Ranunculus arvensis Corn buttercup, Field buttercup

non-native
Annual herb

2015 Judy and Barry Breckling

2019 David popp

Ranunculus bonariensis var. trisepalus Carter's buttercup, Vernal pool buttercup

native
Annual herb

2008 Steve Matson

Ranunculus bulbosus Bulbous buttercup, St. anthony's turnip

non-native
Perennial herb

2005 Dr. Amadej Trnkoczy

Ranunculus californicus California buttercup

native
Perennial herb

2016 Steve Matson

Ranunculus californicus ssp. californicus California buttercup

native
Perennial herb

Ranunculus californicus ssp. californicus

2016 Steve Matson

Ranunculus californicus var. californicus Common buttercup

native
Perennial herb

Ranunculus californicus var. californicus

2016 Steve Matson

Ranunculus californicus var. cuneatus Common buttercup

native
Perennial herb

2019 James Gonsman

2013 Robert Sikora

2015 Zoya Akulova

Ranunculus canus Great valley buttercup, Hartweg's buttercup, Sacramento valley buttercup

native
Perennial herb

2022 BOB CASE

2007 George W. Hartwell

2009 Barry Rice

Ranunculus canus var. canus Hartweg's buttercup

native
Perennial herb

2024 Dianne Lake

2023 Shane Hanofee

Ranunculus cortusifolius Azores buttercup

non-native
Perennial herb

2010 Zoya Akulova

2009 Zoya Akulova

Ranunculus cortusifolius ssp. major Azores buttercup

non-native
Perennial herb

2010 Zoya Akulova

2009 Zoya Akulova

Ranunculus cymbalaria Alkali buttercup

native
Perennial herb

2013 Steve Matson

Ranunculus cymbalaria var. saximontanus Alkali buttercup

native
Perennial herb

2013 Steve Matson

Ranunculus eschscholtzii Eschscholtz's buttercup

native
Perennial herb

2019 R.A. Chasey

2016 Steve Matson

2015 Steve Matson

Ranunculus eschscholtzii var. oxynotus Eschscholtz's buttercup

native
Perennial herb

2015 Steve Matson

2016 Steve Matson

2019 R.A. Chasey

Ranunculus eschscholtzii var. suksdorfii Suksdorf's buttercup

native
Perennial herb

Ranunculus eschscholtzii var. suksdorfii

2022 Dana York

2011 Dana York

Ranunculus suksdorfii Suksdorf's buttercup

native
Perennial herb

2022 Dana York

2011 Dana York

Ranunculus flabellaris Yellow water buttercup

native
Perennial herb

2009 Robert L. Carr

Ranunculus flammula Creeping buttercup, Greater creeping spearwort, Water buttercup

native
Perennial herb

2014 James Gonsman

1909 Bob Sweatt

2021 Bob Sweatt

Ranunculus flammula var. ovalis Greater creeping spearwort

native
Perennial herb

2018 Joerg Lohse

2017 Adam Chasey

Ranunculus glaberrimus Sagebrush buttercup, Smooth buttercup

native
Perennial herb

2022 Bob Sweatt

2020 Bob Sweatt

2022 Bob Sweatt

Ranunculus glaberrimus var. ellipticus Elliptical buttercup, Narrow leaved smooth buttercup

native
Perennial herb

2009 Steve Matson

Ranunculus glaberrimus var. glaberrimus Sagebrush buttercup, Smooth buttercup

native
Perennial herb

2012 Orrin Winton

2018 Susan McDougall

2002 Thayne Tuason

Ranunculus gormanii Gorman's buttercup

native
Perennial herb

2006 Keir Morse

Ranunculus hebecarpus Delicate buttercup, Pubescent fruited buttercup, Slender annual buttercup

native
Annual herb

2019 Ron Vanderhoff

2021 Ron Vanderhoff

2019 Ron Vanderhoff

Ranunculus hydrocharoides Frog's bit buttercup, Frogbit buttercup

• rare native
Perennial herb (aquatic)

1998 Larry Blakely

Kumlienia hystricula Waterfall false buttercup

native
Perennial herb

2007 Steve Matson

2019 Matt Berger

Ranunculus hystriculus Waterfall false buttercup

native
Perennial herb

2007 Steve Matson

2019 Matt Berger

Ranunculus lobbii Buttercup, Lobb's aquatic buttercup, Lobb's buttercup

• rare native
Annual herb (aquatic)

2023 David Greenberger

2024 Austin keene

2016 Amelia Ryan

Ranunculus macounii Macoun's buttercup

• rare native
Annual, Perennial herb

2009 Trent M. Draper

Ranunculus muricatus Buttercup, Pricklefruit buttercup, Spiny buttercup

non-native
Annual, Perennial herb

2023 R.A. Chasey

2023 Alaine Arslan

2009 Julie A. Kierstead

Ranunculus occidentalis Western buttercup

native
Perennial herb

2020 Ron Vanderhoff

2008 Steve Matson

2022 Ron Vanderhoff

Ranunculus occidentalis var. dissectus Western buttercup

native
Perennial herb

2015 Susan McDougall

2018 Susan McDougall

Ranunculus occidentalis var. occidentalis Western buttercup

native
Perennial herb

Ranunculus occidentalis var. occidentalis

2022 Mike Russler

Ranunculus occidentalis var. ultramontanus Western buttercup

native
Perennial herb

Ranunculus occidentalis var. ultramontanus

2015 Jim Morefield

2021 David popp

2017 David popp

Ranunculus orthorhynchus Bloomer's buttercup, Straight beaked buttercup, Straightbeak buttercup

native
Perennial herb

2019 Ken Hickman

2021 R.A. Chasey

2019 Hunter Breck

Ranunculus orthorhynchus var. bloomeri Bloomer's beaked buttercup, Bloomer's buttercup

native
Perennial herb

2019 Ken Hickman

2019 Hunter Breck

2019 Ken Hickman

Ranunculus orthorhynchus var. orthorhynchus Straight beaked buttercup, Straightbeak buttercup

native
Perennial herb

Ranunculus orthorhynchus var. orthorhynchus

2008 Keir Morse

Ranunculus orthorhynchus var. platyphyllus Bloomer's buttercup

native
Perennial herb

Ranunculus orthorhynchus var. platyphyllus

2021 R.A. Chasey

2022 Cynthia Powell

2019 Jennifer Riddell

Ranunculus parviflorus Few flowered buttercup, Smallflower buttercup

non-native
Annual herb

2008 Keir Morse

Ranunculus pusillus Low buttercup, Low spearwort

native
Annual herb (aquatic)

2023 R.A. Chasey

2007 Jorg & Mimi Fleige

2023 R.A. Chasey

Ranunculus repens Creeping buttercup, Crowfoot, creeping buttercup

• invasive non-native
Perennial herb

2022 Bob Sweatt

2021 Norma Solarz

2017 Elliot Gunnison

Ranunculus sardous Hairy buttercup

non-native
Perennial herb

2022 Donald Burk

2017 Gerald Carr

Ranunculus sceleratus Cursed buttercup, Cursed crowfoot

native
Annual herb (aquatic)

2022 Mark Gary

2020 Roy Johnson

2016 Neal Kramer

Ranunculus sceleratus var. multifidus Cursed buttercup

native
Annual herb (aquatic)

2008 Trent M. Draper

Ranunculus sceleratus var. sceleratus Cursed buttercup

native
Annual herb (aquatic)

2015 Neal Kramer

2015 Zoya Akulova

Ceratocephala testiculata Tubercled crowfoot

non-native
Annual herb

2022 Bob Sweatt

2011 Steve Matson

2020 Donald Burk

Ranunculus testiculatus Tubercled crowfoot

non-native
Annual herb

2022 Bob Sweatt

2011 Steve Matson

2020 Donald Burk

Ranunculus uncinatus Hook seeded buttercup, Hooked fruit buttercup, Woodland buttercup

native
Annual, Perennial herb

2019 Ken Hickman

2017 James Gonsman

Raphanus raphanistrum Jointed charlock, Painted charlock, Wild radish

non-native
Annual, Perennial herb

2018 Angelique Herman

2016 Camille Nowell

2018 Angelique Herman

Raphanus raphanistrum ssp. maritimus Jointed charlock, Painted charlock, Wild radish

non-native
Annual, Perennial herb

2018 Angelique Herman

2016 Camille Nowell

2018 Angelique Herman

Raphanus sativus Cultivated radish, Jointed charlock, Wild radish

• invasive non-native
Annual, Biennial herb

2017 Lisa Miller

2020 Ron Vanderhoff

2023 Julia Markey

Rapistrum rugosum Annual bastardcabbage

non-native
Annual, Perennial herb

2020 Ron Vanderhoff

Ratibida columnifera Upright prairie coneflower

non-native
Perennial herb

2007 LTC William E. Ottinger, Ph.D.

2008 Louis-M. Landry

Reseda alba White mignonette, White upright mignonette

non-native
Perennial herb

2006 Luigi Rignanese

2005 Luigi Rignanese

Reseda lutea Yellow mignonette

non-native
Perennial herb

1993 Gerald Carr

Reseda luteola Dyer's mignonette, Weld

non-native
Perennial herb

2015 Peter Warner

2018 Hayley Ross

Rhagadiolus stellatus Endive daisy

non-native
Annual herb

2022 Emily R. Allen

2017 William Miller

2020 Naftali Moed

Rhamnus alaternus Italian buckthorn

• invasive non-native
Shrub

2020 James Bailey

2022 Ron Vanderhoff

Rhamnus alnifolia Alder leaved coffeeberry, Alderleaf buckthorn, Alderleaf coffeeberry

• rare native
Shrub

2015 Steve Matson

Rhamnus cathartica Common buckthorn

non-native
Shrub

2016 Keir Morse

Rhamnus crocea Redberry buckthorn

native
Shrub

2011 Michael Mitchell

2022 Ron Vanderhoff

2019 Ron Vanderhoff

Rhamnus ilicifolia Evergreen buckthorn, Hollyleaf redberry

native
Shrub

2016 Steve Matson

2006 Steve Matson

Rhamnus pilosa Hairyleaf redberry

native
Shrub

2016 Keir Morse

Rhamnus pirifolia Island redberry

• rare native
Tree, Shrub

2014 Steve Matson

2020 Susan McDougall

2014 Steve Matson

Rhaphiolepis indica

non-native

2021 Ron Vanderhoff

Acroptilon repens Russian knapweed

non-native
Perennial herb

2017 Barbara Boethling

2014 Steve Matson

2017 Barbara Boethling

Polygala californica California Milkwort

native
Perennial herb

2020 Janice Kuch

2021 Larry Dizmang

2020 David Wolfson

Polygala cornuta

native

2021 Jamie Spielmann

2022 Julie A. Kierstead

2020 Aaron Echols

Polygala cornuta var. cornuta Sierra Milkwort

native
Shrub

2011 Steve Matson

2018 Steve Matson

Rhodiola integrifolia Ledge stonecrop

native
Perennial herb

2005 Steve Matson

2020 Bob Sweatt

Rhodiola integrifolia ssp. integrifolia Ledge stonecrop

native
Perennial herb

2005 Steve Matson

2014 Steve Matson

2005 Steve Matson

Sedum roseum ssp. integrifolium Ledge stonecrop

native
Perennial herb

2005 Steve Matson

2014 Steve Matson

2005 Steve Matson

Ledum glandulosum Western labrador tea

native
Shrub

2005 Steve Matson

2008 Steve Matson

Ledum glandulosum ssp. columbianum Western labrador tea

native
Shrub

2005 Steve Matson

2008 Steve Matson

Rhododendron columbianum Western labrador tea

native
Shrub

2005 Steve Matson

2008 Steve Matson

Rhododendron macrophyllum California rose bay, Coast rhododendron, Pacific rhododendron

native
Shrub

2017 Steve Matson

2020 Aaron Echols

2017 Steve Matson

Rhododendron occidentale Western azalea

native
Tree, Shrub

2019 David Greenberger

2015 Steve Matson

2020 Julie A. Kierstead

Rhododendron occidentale var. occidentale Western azalea

native
Tree, Shrub

Rhododendron occidentale var. occidentale

2018 Adam Chasey

2018 Robert Barnard

2020 R.A. Chasey

Rhus aromatica Fragrant sumac, Skunk Bush

native
Shrub

2018 Steve Matson

Rhus aromatica var. anisophylla Fragrant sumac, Skunk Bush

native
Shrub

2018 Steve Matson

Rhus aromatica var. aromatica Fragrant sumac, Skunk Bush

native
Shrub

2018 Steve Matson

Rhus aromatica var. pilosissima Fragrant sumac, Skunk Bush

native
Shrub

2018 Steve Matson

Rhus aromatica var. trilobata Fragrant sumac, Skunk Bush

native
Shrub

2018 Steve Matson

Rhus trilobata Fragrant sumac, Skunk Bush

native
Shrub

2018 Steve Matson

Rhus trilobata var. trilobata Fragrant sumac, Skunk Bush

native
Shrub

2018 Steve Matson

Rhus aromatica var. simplicifolia Single-leaved skunkbrush

• rare native
Shrub

2021 David popp

2013 Keir Morse

Rhus glabra Smooth sumac

non-native
Tree

2019 Thomas Twist

2008 Jason E. Willand

Rhus integrifolia Lemonade berry, Lemonade sumac

native
Shrub

2020 David Greenberger

2019 Ron Vanderhoff

2024 Ron Vanderhoff

Rhus lanceolata Prairie sumac

non-native
Shrub

2002 University of California Museum of Paleontology

Rhus ovata Sugar bush, Sugar sumac

native
Shrub

2020 Bryant Baker

2019 Bryant Baker

Rhynchospora alba White beaked rush, White beaksedge

• rare native
Perennial grasslike herb (rhizomatous)

2006 Steve Matson

2019 SPI Botany

2006 Steve Matson

Rhynchospora californica California beaked rush, California beaksedge

• rare native
Perennial grasslike herb (rhizomatous)

2019 Matt Berger

Rhynchospora capitellata Brownish beaksedge, Capitate beaked rush

• rare native
Perennial grasslike herb

2004 Dean Wm. Taylor

2010 Aaron Arthur

Rhynchospora globularis Globe beaksedge

• rare native
Perennial grasslike herb (rhizomatous)

2004 Steve Matson

Ribes amarum Bitter gooseberry

native
Shrub

2021 Keir Morse

2019 Ron Vanderhoff

2021 David popp

Ribes aureum Golden currant

native
Shrub

2004 Steve Matson

Ribes aureum var. villosum Golden currant

native
Shrub

2004 Steve Matson

Ribes aureum var. aureum Golden currant

native
Shrub

2019 Susan McDougall

2010 Barry Breckling

1998 Dean Wm. Taylor

Ribes aureum var. gracillimum Golden currant

native
Shrub

2019 Matt Berger

2022 Alexander S. Kunz

2020 Alice Cummings

Ribes binominatum Ground gooseberry, Trailing gooseberry

native
Shrub

2019 Chasey

2010 Vernon Smith

2019 Julie A. Kierstead

Ribes bracteosum Stink currant

native
Shrub

2020 Susan McDougall

2014 Susan McDougall

2008 Matt Below

Ribes californicum California gooseberry, Hillside gooseberry

native
Shrub

2020 Sue Graue

2018 Gary McDonald

2019 Sue Graue

Ribes californicum var. californicum; California gooseberry, Hillside gooseberry

native
Shrub

2020 Sue Graue

2018 Gary McDonald

2019 Sue Graue

Ribes californicum var. californicum California gooseberry, Hillside gooseberry

native
Shrub

2019 Matt Berger

2018 Gary McDonald

2019 Adam Chasey

Ribes californicum var. hesperium California gooseberry, Hillside gooseberry

native
Shrub

2021 Ron Vanderhoff

Ribes canthariforme Moreno currant

• rare native
Shrub

2017 Keir Morse

Ribes cereum Wax currant

native
Shrub

2013 Steve Matson

2021 Bryant Baker

2016 Jim Moore

Ribes cereum var. cereum Wax currant

native
Shrub

2014 James Gonsman

2021 Bryant Baker

2020 Susan McDougall

Ribes divaricatum Spreading gooseberry

native
Shrub

2012 Terrence Gosliner

2022 Dee Shea Himes

2017 Gregory Arena

Ribes divaricatum ssp. divaricatum Spreading gooseberry

native
Shrub

2012 Terrence Gosliner

2022 Dee Shea Himes

2017 Gregory Arena

Ribes divaricatum var. pubiflorum Spreading gooseberry, Straggly gooseberry

native
Shrub

2021 Ken-ichi Ueda

Ribes hudsonianum Northern black currant

native
Shrub

2015 Gerald Carr

Ribes indecorum White flowering currant, Whiteflower currant

native
Shrub

2020 Diane Etchison

Ribes inerme White stemmed gooseberry, Whitestem gooseberry

native
Shrub

2021 Steve Matson

Ribes inerme var. inerme White stemmed gooseberry, Whitestem gooseberry

native
Shrub

2021 Steve Matson

Ribes lacustre Prickly currant, Swamp currant

native
Shrub

2011 Steve Matson

Ribes lasianthum Alpine gooseberry

native
Shrub

2003 Steve Matson

2023 Bob Sweatt

Ribes laxiflorum Trailing black currant

• rare native
Shrub

2019 Tristan K Cole

2010 Dana York

2006 Melissa Brooks Kraemer

Ribes lobbii Gummy gooseberry

native
Shrub

2022 Jamie Spielmann

2008 Neal Kramer

2019 Kolby Lundgren

Ribes malvaceum Chaparral currant

native
Shrub

2020 Bryant Baker

Ribes malvaceum var. malvaceum Chaparral currant

native
Shrub

2023 R.A. Chasey

2020 Ron Vanderhoff

2023 R.A. Chasey

Ribes malvaceum var. viridifolium Chaparral currant

native
Shrub

Geoff Burleigh

2012 Ron Vanderhoff

2020 Susan McDougall

Ribes marshallii Hupa gooseberry, Marshall's gooseberry

• rare native
Shrub

2022 Dana York

Ribes menziesii Canyon gooseberry, Gooseberry

native
Shrub

2019 Michael Mitchell

2016 Steve Matson

Ribes menziesii var. ixoderme Aromatic canyon gooseberry, Sierra canyon gooseberry

• rare native
Shrub

2008 Chris Winchell

Ribes menziesii var. menziesii Canyon gooseberry

native
Shrub

2018 Rebecca Schoenenberger

2019 Michael Mitchell

2020 Susan McDougall

Ribes montigenum Alpine prickly current, Gooseberry currant, Mountain gooseberry

native
Shrub

2018 Steve Matson

2020 Bob Sweatt

Ribes nevadense Mountain pink currant, Sierra currant

native
Shrub

2020 Bob Sweatt

2023 Jamie Spielmann

2004 Steve Matson

Ribes quercetorum Foothill gooseberry, Oak gooseberry, Rock gooseberry

native
Shrub

2020 Susan McDougall

2016 Steve Matson

2020 Susan McDougall

Ribes roezlii Sierra gooseberry, Sierran Gooseberry

native
Shrub

2020 Robert Langellier

2022 Ron Vanderhoff

2009 BOB CASE

Ribes roezlii var. amictum Sierra gooseberry

• rare native
Shrub

1973 Dean Wm. Taylor

Ribes roezlii var. cruentum Sierra gooseberry, Spiny fruited gooseberry

native
Shrub

2021 Steve Matson

Ribes roezlii var. roezlii Sierra gooseberry

native
Shrub

2004 Steve Matson

2003 Steve Matson

Ribes sanguineum Flowering currant, Red flowering currant, Redflower currant

native
Shrub

2020 Hunter Breck

2018 Michael Kauffmann

2020 Mary Conway

Ribes sanguineum var. glutinosum Blood currant, Flowering currant, Pink flowering currant

native
Shrub

2020 Talila Golan

2018 John Rusk

2018 Hunter Breck

Ribes sanguineum var. sanguineum Red flowering currant, Redflower currant

native
Shrub

2021 Dana York

2009 Ben Stever

2015 John Doyen

Ribes sericeum Santa lucia gooseberry

• rare native
Shrub

2024 Keir Morse

Ribes speciosum Fuchsia flowered gooseberry, Fuchsiaflower gooseberry

native
Shrub

2022 David Chipping

2021 Ron Vanderhoff

Ribes thacherianum Santa cruz gooseberry, Santa cruz island gooseberry

• rare native
Shrub

2014 Steve Matson

Ribes tularense Sequoia gooseberry, Tulare gooseberry

• rare native
Shrub

2010 Dana York

Ribes velutinum Desert gooseberry

native
Shrub

2020 Steve Matson

2019 Matt Berger

2020 Steve Matson

Ribes viburnifolium Catalina currant, Island gooseberry, Santa catalina island currant

• rare native
Shrub

2019 Ron Vanderhoff

2018 Aaron Echols

Ribes victoris Victor's gooseberry

• rare native
Shrub

2020 Tim Miller

Ribes viscosissimum Sticky currant, Sticky flowering currant

native
Shrub

2019 Bob Sweatt

2016 Steve Matson

Ricinus communis Castor bean, Castorbean

• invasive non-native
Shrub

2017 Henry DiRocco

2020 Aaron Echols

2022 Ron Vanderhoff

Rigiopappus leptocladus Rigiopappus, Wire weed, Wireweed

native
Annual herb

2019 Ken Hickman

2021 Steve Laymon

2022 John Rawlings

Robinia hispida Bristly locust

non-native
Tree, Shrub

2019 Randy Huey

2017 Betty Rembert

Robinia neomexicana Desert locust, New mexico locust

• rare native
Tree, Shrub

2014 John Doyen

2010 Lee Dittmann

2010 James M. Andre

Robinia pseudoacacia Black locust

• invasive non-native
Tree

2021 Ron Vanderhoff

2021 David Wolfson

2015 Ron Vanderhoff

Roldana petasitis Velvet groundsel

non-native
Shrub

2014 Rolf T Borlinghaus

Senecio petasitis Velvet groundsel

non-native
Shrub

2014 Rolf T Borlinghaus

Romanzoffia californica California romanzoffia

native
Perennial herb

2024 Steve Conger

2024 Mary Ann Machi

2021 Steve Matson

Romanzoffia sitchensis Sitka romanzoffia

native
Perennial herb

2022 Dana York

2014 Dana York

2011 Kjirsten Wayman

Romanzoffia tracyi Tracy's romanzoffia

• rare native
Perennial herb

2017 Steve Matson

Romneya coulteri Coulter's matilija poppy

• rare native
Perennial herb (rhizomatous)

2018 Aaron Echols

2010 Dr. Mark S. Brunell

2018 Samantha

Romneya trichocalyx Bristly matilija poppy, Hairy matilija poppy

native
Perennial herb

2022 Ken Lunders

2020 Kimberly Coates

2019 Bryant Baker

Romulea rosea Rosy sandcrocus

• invasive non-native
Perennial herb

2022 Lenihan Mazur

2018 Robin Hunter

Romulea rosea var. australis Rosy sand crocus, Rosy sandcrocus

non-native
Perennial herb

2019 Janice Kuch

2022 Leah Lord

2018 Robin Hunter

Rorippa austriaca Austrian field cress, Austrian yellowcress

• invasive non-native
Perennial herb

2008 John Dittes

2001 CDFA

Rorippa columbiae Columbia yellow cress, Columbian yellowcress

• rare native
Perennial herb (rhizomatous)

2021 Donald Burk

Rorippa curvipes Bluntleaf yellow cress, Bluntleaf yellowcress

native
Annual herb

2020 Bob Sweatt

2008 Aaron Schusteff

Rorippa curvisiliqua Curvepod yellow cress, Curvepod yellowcress, Western yellow cress

native
Annual, Perennial herb

2020 Ron Vanderhoff

2023 Ron Vanderhoff

Rorippa palustris Bog yellow cress, Bog yellowcress

native
Annual, Perennial herb

2020 Ron Vanderhoff

Rorippa palustris ssp. fernaldiana Bog yellowcress

native
Annual, Perennial herb

2017 Ron Vanderhoff

2018 Ron Vanderhoff

Rorippa palustris ssp. palustris Bog yellowcress

native
Annual, Perennial herb

2017 Ron Vanderhoff

2018 Ron Vanderhoff

Rorippa palustris var. occidentalis Bog yellowcress

native
Annual, Perennial herb

2017 Ron Vanderhoff

2018 Ron Vanderhoff

Rorippa sphaerocarpa Round fruit yellow cress, Roundfruit yellowcress

native
Annual herb

2015 Barry Breckling

2008 Michael Charters

2015 Barry Breckling

Rorippa subumbellata Lake tahoe yellowcress, Tahoe yellow cress

• rare native
Perennial herb (rhizomatous)

2020 Bob Sweatt

2016 mark kircher

2020 Bob Sweatt

Rosa bridgesii Pygmy rose, Wood rose

native
Shrub

2023 Mike Russler

2020 David popp

2023 Mike Russler

Rosa californica California wild rose, California wildrose

native
Shrub

2022 Suzanne L. Weakley

2020 R.A. Chasey

Rosa canina Dog rose

non-native
Shrub

2018 MCOSD EDRR

2017 Hayley Ross

2004 Dr. Amadej Trnkoczy

Rosa gymnocarpa Dwarf rose, Baldhip rose

native
Shrub

2012 Michael Mitchell

2017 David popp

Rosa gymnocarpa var. gymnocarpa Wood rose

native
Shrub

2019 James Gonsman

2020 David Krause

2017 Steve Matson

Rosa minutifolia Baja rose, Small leaved rose

• rare native
Shrub

2020 Keir Morse

2003 Charles E. Jones

Rosa multiflora Multiflora rose

non-native
Shrub, Vine

2023 Donald Burk

2009 Barry Rice

Rosa nutkana Nootka rose

native
Shrub

2021 Alison Gardner

2019 Jonathan Lee

2021 Alison Gardner

Rosa nutkana ssp. macdougallii Nootka rose

native
Shrub

2021 Alison Gardner

2019 Jonathan Lee

2021 Alison Gardner

Rosa nutkana ssp. macdougalii Nootka rose

native
Shrub

2018 Susan McDougall

Rosa nutkana ssp. nutkana Nootka rose

native
Shrub

2021 Alison Gardner

2014 Zoya Akulova

Rosa nutkana var. nutkana Nootka rose

native
Shrub

2021 Alison Gardner

2014 Zoya Akulova

Rosa pinetorum Pine rose

• rare native
Shrub

2019 Mary Conway

2015 Dean Wm. Taylor

Beatrice F. Howitt 1999 California Academy of Sciences

Rosa pisocarpa Cluster rose

native
Shrub

2015 Steve Matson

2023 Cynthia Powell

Rosa pisocarpa ssp. ahartii Ahart rose

native
Shrub

2018 Sierra Pacific Industries

2014 Neal Kramer

Rosa pisocarpa ssp. pisocarpa Cluster or pea rose

native
Shrub

2019 Julie Kierstead Nelson

2015 Steve Matson

Rosa rubiginosa Sweet brier

non-native
Shrub

2020 David popp

2020 MCOSD EDRR

2017 Nick Graver

Rosa rugosa Rugosa rose

non-native
Shrub, Vine

1998 Nick Kurzenko

2008 Louis-M. Landry

2000 Nick Kurzenko

Rosa spithamea Ground rose, Sonoma rose

native
Shrub

2021 David Gowen

1973 Geoff Burleigh

2020 David Krause

Rosa woodsii Woods' rose

native
Shrub

2018 Alison Sheehey

2016 Jim Moore

2020 Joe Engelbrecht

Rosa woodsii ssp. Woodsii Woods' rose

native
Shrub

2018 Alison Sheehey

2016 Jim Moore

2020 Joe Engelbrecht

Rosa woodsii ssp. gratissima Mojave rose

native
Shrub

2014 Steve Matson

Rosa woodsii ssp. ultramontana Interior rose

native
Shrub

2018 Alison Sheehey

2019 Susan McDougall

2016 Jim Moore

Rosa woodsii var. ultramontana Interior rose

native
Shrub

2018 Alison Sheehey

2019 Susan McDougall

2016 Jim Moore

Rosmarinus officinalis Rosemary

non-native
Shrub

2022 Barbara deGery

2022 Andy Ford

2015 Chris Jaster

Rotala ramosior Lowland rotala

native
Annual herb

2022 Donald Burk

2023 Donald Burk

Rubia tinctoria Madder

non-native
Perennial herb

2013 Jean Pawek

Rubus allegheniensis Allegheny blackberry

non-native
Shrub

2008 Louis-M. Landry

Rubus armeniacus Himalayan blackberry, black berry, Armenian blackberry

• invasive non-native
Shrub

2014 James Gonsman

2020 Julie A. Kierstead

2018 Richard Spjut

Rubus fruticosus Shrubby blackberry

non-native
Vine, Shrub

Rubus glaucifolius Raspberry, San diego raspberry, Wax leaf raspberry

native
Shrub

2017 Steve Matson

Rubus idaeus American red raspberry

native
Shrub

2006 Joseph Dougherty/ecology.org

2008 Louis-M. Landry

Rubus idaeus ssp. strigosus Grayleaf red raspberry

native
Shrub

Rubus laciniatus Cut leaved blackberry, Cutleaf blackberry

non-native
Shrub

2017 Chris Friedel

2021 Donald Burk

2014 John Malpas

Rubus lasiococcus Rough fruit berry, Roughfruit berry

native
Vine, Shrub

2022 Dana York

2000 John Game

2022 Dana York

Rubus leucodermis Western raspberry, White bark raspberry, White stemmed raspberry

native
Shrub

2019 Bob Sweatt

2023 R.A. Chasey

Rubus nivalis Snow bramble, Snow dwarf bramble, Snow raspberry

• rare native
Vine

2023 Amy Rachkowski

2015 Chris Wagner

Rubus parviflorus Western thimbleberry, Thimbleberry

native
Vine, Shrub

2022 Zoya Akulova-Barlow

2020 Mary Sue Ittner

2019 Patrick Furtado

Rubus pensilvanicus Pennsylvania blackberry

non-native
Vine, Shrub

2013 Zoya Akulova

Rubus phoenicolasius Wine raspberry

non-native
Vine, Shrub

Rubus spectabilis Salmon berry, Salmonberry

native
Shrub

2017 James Gonsman

2022 Zoya Akulova-Barlow

2016 Steve Matson

Rubus discolor Elmleaf blackberry

non-native
Vine, Shrub

2020 Jennifer Mo

2021 Ramona Robison

Rubus ulmifolius Elmleaf blackberry

non-native
Vine, Shrub

2020 Jennifer Mo

2021 Ramona Robison

Rubus ulmifolius var. anoplothyrsus Elm leaf bramble

non-native
Vine, Shrub

2024 Donald Burk

2011 Tony Morosco

2020 Ramona Robison

Rubus macropetalus California blackberry, Pacific blackberry

native
Vine, Shrub

2018 Ken Lunders

2019 Ron Vanderhoff

2015 Kelli Kallenborn

Rubus ursinus California blackberry, Pacific blackberry

native
Vine, Shrub

2018 Ken Lunders

2019 Ron Vanderhoff

2015 Kelli Kallenborn

Rudbeckia californica California cone flower, California coneflower

native
Perennial herb

2010 Patrick Furtado

2017 Leah Gardner

2021 Mike Russler

Rudbeckia glaucescens Waxy coneflower

native
Perennial herb

2020 R.A. Chasey

2018 Anna Sereno

2022 Dee Shea Himes

Rudbeckia hirta Blackeyed susan, Bristly cone flower

native
Perennial herb

2008 Steve Matson

Rudbeckia hirta var. angustifolia Blackeyed susan, Bristly cone flower

native
Perennial herb

2008 Steve Matson

Rudbeckia bicolor Black eyed susan, Blackeyed susan

non-native
Perennial herb

2008 Steve Matson

2019 David popp

2008 Steve Matson

Rudbeckia hirta var. pulcherrima Black eyed susan, Blackeyed susan

non-native
Perennial herb

2008 Steve Matson

2019 David popp

2008 Steve Matson

Rudbeckia klamathensis Klamath coneflower

native
Perennial herb

2023 Dana York

Rudbeckia occidentalis Western coneflower

native
Perennial herb

2022 Donald Burk

2021 Julie A. Kierstead

2012 Barry Rice

Rudbeckia occidentalis var. glabrata Western coneflower

native
Perennial herb

2022 Donald Burk

2021 Julie A. Kierstead

2012 Barry Rice

Rudbeckia occidentalis var. occidentalis Western coneflower

native
Perennial herb

Rudbeckia occidentalis var. occidentalis

2022 Donald Burk

2021 Julie A. Kierstead

2012 Barry Rice

Rumex acetosella Common sheep sorrel

• invasive non-native
Perennial herb

2017 Gary McDonald

2008 Steve Matson

2019 Patrick Furtado

Rumex californicus California dock

native
Perennial herb

2005 Steve Matson

2023 Ron Vanderhoff

2016 Cynthia Powell

Rumex salicifolius var. denticulatus California dock

native
Perennial herb

2005 Steve Matson

2023 Ron Vanderhoff

2016 Cynthia Powell

Rumex conglomeratus Clustered dock, Green dock

non-native
Perennial herb

2020 Ron Vanderhoff

2023 Ron Vanderhoff

Rumex crassus Willow leaved dock

native
Perennial herb

2019 Patrick Furtado

2008 Toni Corelli

2021 Cynthia Powell

Rumex crispus Curly dock, Curly leaved dock, Rhubarb

• invasive non-native
Perennial herb

2018 Tim Lewis

2019 Diane Etchison

2023 Ron Vanderhoff

Rumex dentatus Toothed dock

non-native
Annual, Perennial herb

2021 Ron Vanderhoff

Rumex fueginus Golden dock

native
Annual, Perennial herb

2022 Steve Ashcraft

2021 Donald Burk

2020 Ron Vanderhoff

Rumex hymenosepalus Canaigre dock, Wild rhubarb

native
Perennial herb

2008 Steve Matson

Rumex kerneri Kerner's dock

non-native
Perennial herb

2024 Donald Burk

2023 Donald Burk

2024 Donald Burk

Rumex obtusifolius Bitter dock

non-native
Perennial herb

2021 Toni Corelli

null

Rumex fenestratus Western dock

native
Perennial herb

2008 Toni Corelli

2009 Toni Corelli

2020 Ken Hickman

Rumex occidentalis Western dock

native
Perennial herb

2008 Toni Corelli

2009 Toni Corelli

2020 Ken Hickman

Rumex palustris

non-native
Perennial herb

2010 Luigi Rignanese

Rumex paucifolius Alpine sheep sorrel, Few leaved dock

native
Perennial herb

2019 Mary Merriman

2021 Mike Russler

Rumex persicarioides Golden dock

native
Annual, Perennial herb

2015 Ryan Batten

Rumex pulcher Fiddle dock

non-native
Perennial herb

2020 Ryan Carle

2022 Chris McDonald

2019 Saul Soto

Rumex salicifolius Willow dock, Willow leaved dock

native
Perennial herb

2023 Ron Vanderhoff

2012 Gary McDonald

Rumex sanguineus Redvein dock

non-native
Perennial herb

2009 Phil Pullen

2010 Zoya Akulova

Rumex stenophyllus Narrowleaf dock

non-native
Perennial herb

2019 Jennifer Mo

2020 Jennifer Mo

Rumex transitorius Willow dock

native
Perennial herb

2009 Toni Corelli

2011 Toni Corelli

2008 Toni Corelli

Rumex salicifolius var. triangulivalvis Willow dock

native
Perennial herb

2013 BOB CASE

2019 Diane Etchison

2009 Barry Breckling

Rumex triangulivalvis Willow dock

native
Perennial herb

2013 BOB CASE

2019 Diane Etchison

2009 Barry Breckling

Rumex venosus Veiny dock, Winged dock

• rare native
Perennial herb

2022 Ryan O'Dell

Rumohra adiantiformis Iron fern

non-native
Fern

Rupertia hallii Hall's california tea, Hall's rupertia

• rare native
Perennial herb

2021 David popp

2018 Sierra Pacific Industries

Rupertia physodes California tea, Common rupertia, Forest scurfpea

native
Perennial herb

2023 R.A. Chasey

2023 Steve Conger

2020 R.A. Chasey

Rupertia rigida Parish's california tea, Parish's rupertia

• rare native
Perennial herb

2008 Erin Shapiro

2006 Chris Wagner, SBNF

2008 Thomas Stoughton

Ruppia maritima Ditch grass, Ditchgrass or wigeon grass, Widgeongrass

native
Perennial herb (aquatic)

RUPPIACEAE

2020 Ron Vanderhoff

2011 Sangeet Khalsa

2020 Ron Vanderhoff

Ruta chalepensis Fringed rue

non-native
Perennial herb

2019 Ron Vanderhoff

2020 Ron Vanderhoff

Ruta graveolens Common rue

non-native
Shrub (stem succulent)

2021 Ron Vanderhoff

2018 Jennifer Mo

Rytidosperma caespitosum Tufted wallaby grass

• invasive non-native
Perennial grass

2022 Diana Wahl

2019 Stephany Dery

2008 Neal Kramer

Rytidosperma penicillatum Purple awned wallaby grass , Hairy oat grass, Poverty grass

• invasive non-native
Perennial grass

2019 Eric Wrubel

2014 Alex Beakes

2018 Sarah Inman

Minuartia californica California Sandwort

native
Annual herb

2021 Steve Matson

2021 David popp

Minuartia cismontana Cismontane Minuartia

native
Annual herb

2020 David popp

Sabulina decumbens The Lassics sandwort

• rare native
Perennial herb

2018 Jeb Bjerke

Minuartia douglasii Douglas' Stitchwort

native
Annual herb

2022 Steve Matson

2019 Stacie Wolny

2021 R.A. Chasey

Minuartia nuttallii Nuttall's Sandwort

native
Perennial herb

2019 Steve Matson

2022 Bob Sweatt

Minuartia nuttallii var. fragilis

native
Perennial herb

2011 Dana York

2019 Steve Matson

2011 Dana York

Minuartia nuttallii ssp. gracilis

native
Perennial herb

2012 Steve Matson

Minuartia nuttallii var. gracilis

native
Perennial herb

2012 Steve Matson

Minuartia nuttallii var. gregaria

native
Perennial herb

2011 Steve Matson

2023 Mary Ann Machi

Minuartia pusilla Annual Sandwort

native
Annual herb

2022 Ian Cain

2024 R.A. Chasey

2022 Ian Cain

Minuartia rubella Reddish Sandwort

native
Perennial herb

2015 Steve Matson

Saccharum ravennae Ravennagrass

• invasive non-native
Perennial grass

2011 Ramona Robison

2009 baelin inc

2022 Grace Ferguson

Sagina apetala Annual pearlwort, Dwarf pearlwort, Sticky pearlwort

non-native
Annual herb

2022 Donald Burk

2023 R.A. Chasey

Sagina decumbens Trailing pearlwort

native
Annual herb

2016 Mary Merriman

2022 R.A. Chasey

Sagina decumbens ssp. occidentalis Western pearlwort

native
Annual herb

2019 Ron Vanderhoff

Sagina maxima ssp. crassicaulis Beach pearlwort, Perennial pearlwort, Stickystem pearlwort

native
Perennial herb

2011 Sangeet Khalsa

2005 Doreen L. Smith

Sagina procumbens Arctic pearlwort, Birdeye pearlwort

native
Perennial herb

2022 John Doyen

Sagina saginoides Alpine pearlwort, Arctic pearlwort, Common pearlwort

native
Perennial herb

2023 R.A. Chasey

2022 Bob Sweatt

Sagina subulata Awl leaf pearlwort

non-native
Perennial herb

2005 Louis-M. Landry

2007 Louis-M. Landry

Sagittaria brevirostra Shortbeak arrowhead

non-native
Perennial herb

2002 Doreen L. Smith

2004 Doreen L. Smith

2018 Vernon Smith

Sagittaria cuneata Arum leaved arrowhead, Arumleaf arrowhead, Tule potato

native
Perennial herb

2019 Bob Sweatt

2007 Louis-M. Landry

2019 Bob Sweatt

Sagittaria lancifolia Bulltongue arrowhead

non-native
Perennial herb (aquatic)

Sagittaria latifolia Broad leaf arrowhead, Broadleaf arrowhead, Wappato

native
Perennial herb (aquatic)

2005 Louis-M. Landry

2007 George W. Hartwell

2005 Louis-M. Landry

Sagittaria longiloba Long lobed arrowhead, Longbarb arrowhead

native
Perennial herb (aquatic)

2021 Charles Russell

2018 David Greenberger

2021 Charles Russell

Sagittaria montevidensis Giant arrowhead

native
Perennial herb (aquatic)

2021 Ron Vanderhoff

2022 Donald Burk

Sagittaria montevidensis ssp. calycina Hooded arrowhead, Montevideo arrowhead

native
Perennial herb (aquatic)

2022 Donald Burk

Sagittaria rigida Sessilefruit arrowhead

non-native
Perennial herb

2008 Louis-M. Landry

2007 Louis-M. Land

Sagittaria sanfordii Sanford's arrowhead, Valley arrowhead

• rare native
Perennial herb (rhizomatous)

2020 Ron Vanderhoff

Salicornia bigelovii Bigelow's pickleweed, Dwarf saltwort

native
Annual herb

2021 Ron Vanderhoff

2020 Sandy Leatherman

Salicornia depressa Virginia glasswort

native
Annual herb

2012 Jason Matthias Mills

2014 Cuyler Stapelmann

2006 Doreen L. Smith

Salicornia virginica Virginia glasswort

native
Annual herb

2012 Jason Matthias Mills

2014 Cuyler Stapelmann

2006 Doreen L. Smith

Salicornia pacifica Glasswort, Pacific swampfire, Pickleweed

native
Perennial herb

2020 Ron Vanderhoff

2018 Ron Vanderhoff

Sarcocornia utahensis Glasswort, Pacific swampfire, Pickleweed

native
Perennial herb

2020 Ron Vanderhoff

2018 Ron Vanderhoff

Salicornia perennis Chickenclaws

native
Perennial herb

2006 Matt Below

2022 Cynthia Powell

Salicornia rubra Red pickleweed, Red swampfire

native
Annual herb

2007 Trent M. Draper

2010 Christopher Bronny

2009 Robert Sivinski

Salix alba White willow

non-native
Shrub, Tree

2008 Louis-M. Landry

Salix babylonica Weeping willow

non-native
Tree

2018 Ron Vanderhoff

Salix bebbiana Bebb willow, Gray willow

• rare native
Tree

2008 Louis-M. Landry

2008 Robert Sivinski

2008 Louis-M. Landry

Salix boothii Booth's willow

native
Shrub

2005 John Bair

2008 Steve Matson

2012 Gary A. Monroe

Salix brachycarpa ssp. brachycarpa Shortfruit willow

• rare native
Shrub

2005 John Bair

2004 John Bair

Salix brachycarpa var. brachycarpa Shortfruit willow

• rare native
Shrub

2005 John Bair

2004 John Bair

Salix breweri Brewer's willow, Serpentine willow

native
Shrub

2022 Ryan O'Dell

2021 R.A. Chasey

2024 R.A. Chasey

Salix delnortensis Del norte willow

• rare native
Shrub

2017 Steve Matson

Salix discolor Pussy willow

non-native
Tree

Salix commutata Mountain willow

native
Shrub

2010 John Bair

2002 John Bair

Salix eastwoodiae Mountain willow

native
Shrub

2010 John Bair

2002 John Bair

Salix exigua Narrow leaved willow, Narrowleaf willow, Sandbar willow

native
Tree, Shrub

2015 Steve Matson

2019 Barbara Brydolf

2015 Steve Matson

Salix exigua var. exigua Narrowleaf willow

native
Tree, Shrub

2019 Rachelle Gray

2017 David popp

Salix exigua var. hindsiana Sandbar willow

native
Tree, Shrub

2022 Robbie Lee

2017 Dee Shea Himes

02/22/2022 John Rawlings

Salix geyeriana Geyer's willow

native
Shrub

2010 Steve Matson

2015 David popp

Salix amygdaloides Goodding's black willow, Goodding's willow, Gooding's willow

native
Tree

2020 Ron Vanderhoff

2021 Richard Spjut

2020 Ron Vanderhoff

Salix gooddingii Goodding's black willow, Goodding's willow, Gooding's willow

native
Tree

2020 Ron Vanderhoff

2021 Richard Spjut

2020 Ron Vanderhoff

Salix nigra Goodding's black willow, Goodding's willow, Gooding's willow

native
Tree

2020 Ron Vanderhoff

2021 Richard Spjut

2020 Ron Vanderhoff

Salix hookeriana Coastal willow, Dune willow

native
Tree, Shrub

2022 R.A. Chasey

2022 John Rawlings

2019 Susan McDougall

Salix jepsonii Jepson's willow

native
Shrub

2015 John Rusk

2014 Zoya Akulova

Salix laevigata Polished willow, Red willow

native
Tree

2017 Steve Matson

2019 Barbara Brydolf

2022 Mark Gary

Salix lasiandra Pacific willow

native
Tree

2020 Ron Vanderhoff

2018 Ron Vanderhoff

2021 Richard Spjut

Salix lucida Pacific willow

native
Tree

2020 Ron Vanderhoff

2018 Ron Vanderhoff

2021 Richard Spjut

Salix lucida var. caudata Pacific willow

native
Tree

2020 Ron Vanderhoff

2018 Ron Vanderhoff

2021 Richard Spjut

Salix lasiandra var. caudata Shining willow

native
Shrub

1995 Saint Mary's College of California

Salix lasiandra var. lasiandra Pacific willow

native
Tree

2021 Alice Cummings

2021 Diane Renshaw

2021 Ken Hickman

Salix lucida ssp. lasiandra Pacific willow

native
Tree

2021 Alice Cummings

2021 Diane Renshaw

2021 Ken Hickman

Salix lasiolepis Arroyo willow

native
Tree, Shrub

2022 Ron Vanderhoff

2020 Steve Matson

Salix lemmonii Lemmon's willow

native
Shrub

2018 David popp

2017 Lindsay Ringer

Salix eriocephala var. ligulifolia Strapleaf willow, Tongueleaf willow

native
Shrub

2018 David popp

Salix ligulifolia Strapleaf willow, Tongueleaf willow

native
Shrub

2018 David popp

Salix eriocephala var. watsonii Yellow willow

native
Shrub

2002 John Bair

2017 Zoya Akulova

Salix lutea Yellow willow

native
Shrub

2002 John Bair

2017 Zoya Akulova

Salix rigida var. watsonii Yellow willow

native
Shrub

2002 John Bair

2017 Zoya Akulova

Salix matsudana Corkscrew willow

non-native
Tree

2019 Jennifer Mo

Salix melanopsis Dusky willow

native
Tree, Shrub

2014 Shawna Martinez

2017 Susan Kotelnicki

2021 Thomas Reyes

Salix nivalis Snow willow

• rare native
Shrub

2020 David Greenberger

2009 Steve Matson

Salix reticulata ssp. nivalis Snow willow

• rare native
Shrub

2020 David Greenberger

2009 Steve Matson

Salix orestera Sierra willow

native
Shrub

2006 Steve Matson

2010 Steve Matson

Salix arctica Alpine willow

native
Tree, Shrub

2020 Bob Sweatt

2005 Steve Matson

Salix arctica var. petraea Alpine willow

native
Tree, Shrub

2020 Bob Sweatt

2005 Steve Matson

Salix petrophila Alpine willow

native
Tree, Shrub

2020 Bob Sweatt

2005 Steve Matson

Salix planifolia Diamondleaf willow

native
Shrub

2008 Steve Matson

Salix prolixa Mackenzie's willow

native
Tree, Shrub

2012 Zoya Akulova

2014 Zoya Akulova

Salix purpurea Purpleosier willow

non-native
Tree

2007 Dr. Amadej Trnkoczy

2008 Dr. Amadej Trnkoczy

Salix scouleriana Nuttall willow, Scouler willow, Scouler's willow

native
Tree, Shrub

2016 David popp

2022 John Rawlings

2012 Steve Matson

Salix sessilifolia Northern sandbar willow, Northwest sandbar willow, Northwest willow

native
Shrub

2004 John Bair

Salix sitchensis Coulter willow, Sitka willow

native
Tree, Shrub

2019 Ken Hickman

2022 Mary Conway

Salix viminalis Basket willow

non-native
Tree

Salix Xrubens Hybrid crack willow

non-native
Shrub, Tree

Salix Xsepulcralis Weeping willow

non-native
Tree

2007 Louis-M. Landry

Salpichroa origanifolia Lily of the valley vine

• invasive non-native
Perennial herb

2014 Ron Vanderhoff

2022 Ron Vanderhoff

Salsola australis Russian thistle

non-native
Annual herb

2018 Ron Vanderhoff

2017 James Bailey

2019 Ron Vanderhoff

Salsola kali Russian thistle

• invasive non-native
Annual herb

2022 Nathan Dendinger

Salsola paulsenii Barbwire russian thistle, Paulsen's russian thistle

• invasive non-native
Annual, Perennial herb

2005 Steve Matson

2005 James M. Andre

2017 Mason Hyland

Salsola soda Alkali russian thistle, Oppositeleaf russian thistle

• invasive non-native
Annual herb

2021 Jennifer Mo

2022 Cynthia Powell

2016 Cal-IPC

Salsola tragus Prickly russian thistle, Russianthistle, Tumbleweed

• invasive non-native
Annual herb

2017 Ron Vanderhoff

2018 Angelique Herman

2023 Cynthia Powell

Gilia australis Southern gilia

native
Annual herb

2015 Ron Vanderhoff

2021 Ron Vanderhoff

2015 Keir Morse

Saltugilia australis Southern gilia

native
Annual herb

2015 Ron Vanderhoff

2021 Ron Vanderhoff

2015 Keir Morse

Saltugilia caruifolia Caraway leaved woodland gilia

• rare native
Annual herb

2014 Keir Morse

Saltugilia latimeri Latimer's woodland gilia

• rare native
Annual herb

Jordan Zylstra

Saltugilia splendens Splendid gilia

native
Annual herb

2018 Janith Johnson

2022 Roger Gray

Saltugilia splendens ssp. grantii Grant's gilia

native
Annual herb

2022 Irene Rosen

2005 Michael Charters

Saltugilia splendens ssp. splendens Splendid gilia

native
Annual herb

2019 Diane Etchison

2022 Ryan O'Dell

Salvia aethiopis Mediterranean sage

• invasive non-native
Perennial herb

2018 Matt Berger

2001 CDFA

Salvia apiana White sage

native
Shrub

2019 Hannah Garcia

2019 Ron Vanderhoff

2020 Ron Vanderhoff

Salvia brandegeei Brandegee's sage, Santa rosa island sage

• rare native
Shrub

2006 Steve Matson

Salvia carduacea Thistle sage

native
Annual herb

2016 Steve Matson

2016 Michael Mitchell

Salvia clevelandii Cleveland sage, Fragrant sage

native
Shrub

2019 Diane Etchison

2022 Ron Vanderhoff

Salvia coccinea Blood sage

non-native
Perennial herb

Salvia columbariae Chia sage

native
Annual herb

2020 Ron Vanderhoff

2022 Mike Russler

Salvia columbariae var. columbariae Chia sage

native
Annual herb

2020 Ron Vanderhoff

2022 Mike Russler

Salvia dorrii Desert sage, Dorr's sage, Purple sage

native
Shrub

2006 Steve Matson

2019 Wendy Walker

Salvia dorrii ssp. mearnsii Desert sage, Dorr's sage, Purple sage

native
Shrub

2006 Steve Matson

2019 Wendy Walker

Salvia dorrii var. clokeyi Desert sage, Dorr's sage, Purple sage

native
Shrub

2006 Steve Matson

2019 Wendy Walker

Salvia dorrii ssp. dorrii var. dorrii Dorr's sage

native
Shrub

2009 Thomas Stoughton

Salvia dorrii var. dorrii Dorr's sage

native
Shrub

2009 Thomas Stoughton

Salvia dorrii var. incana Desert sage, Fleshy sage, Great basin sage

• rare native
Shrub

2006 Steve Matson

2020 Susan McDougall

Salvia dorrii var. pilosa Hairy sage

native
Shrub

2019 Matt Berger

2018 Ashley Olive

2010 Neal Kramer

Salvia eremostachya Desert sage, Rose sage, Santa rosa sage

• rare native
Shrub

2019 Matt Berger

2020 Matt Berger

2017 Fred Melgert / Carla Hoegen

Salvia funerea Death valley sage, Woolly sage

• rare native
Shrub

2005 Steve Matson

2012 Steve Matson

Salvia greatae Lavender sage, Orocopia sage

• rare native
Shrub

2023 Matt Berger

2023 Eric Koberle

Salvia greggii Autumn sage

non-native
Perennial herb

2021 Ron Vanderhoff

2015 James Bailey

Salvia hispanica Chia

non-native
Perennial herb

Salvia leucantha Mexican bush sage

non-native
Perennial herb

2021 Ron Vanderhoff

Salvia leucophylla San luis purple sage

native
Shrub

2015 Steven M Norris

2019 Janith Johnson

2018 Ron Vanderhoff

Salvia mellifera Black sage

native
Shrub

2017 Steve Matson

2022 Suzanne L. Weakley

2019 Diane Etchison

Salvia microphylla Baby sage

non-native
Shrub

2019 Randy Huey

2015 Ron Vanderhoff

Salvia mohavensis Mohave sage, Mojave sage

native
Shrub

2017 Thomas Egan

2019 Sonie Sampson

Salvia munzii Munz's sage

• rare native
Shrub

2020 Ron Vanderhoff

Salvia officinalis Kitchen sage

non-native
Perennial herb

2010 Zoya Akulova

2011 Dr. Mark S. Brunell

2011 Louis-M. Landry

Salvia pachyphylla Blue sage, Rose sage, Thick leaved sage

native
Shrub

2007 Steve Matson

Salvia pratensis Introduced sage

non-native
Shrub

2007 Dr. Amadej Trnkoczy

Salvia sonomensis Creeping sage, Sonoma sage

native
Perennial herb

2016 Michael Mitchell

2018 Cynthia Powell

Salvia spathacea Hummingbird sage

native
Perennial herb

2020 David Wolfson

2020 Abby Nichols

2020 Bryant Baker

Salvia vaseyi Scallopleaf sage, Vasey's sage, Wand sage

native
Shrub

Geoff Burleigh

2020 Linda Pardy

Salvia verbenaca Verbena sage

non-native
Perennial herb

2007 Luigi Rignanese

Salvia xpalmeri

native
Perennial herb

Salvinia auriculata Water spangles

non-native
Annual, Perennial herb

SALVINIACEAE

2020 Ron Vanderhoff

Salvinia minima Water spangles

non-native
Annual, Perennial herb

SALVINIACEAE

2020 Ron Vanderhoff

Salvinia molesta Kariba weed

• invasive non-native
Annual, Perennial herb

SALVINIACEAE

2010 Barry Rice

2009 Barry Rice

Sambucus mexicana Blue elderberry

native
Tree, Shrub

2021 Mike Russler

2020 Diane Etchison

2022 El Byrne

Sambucus nigra ssp. caerulea Blue elderberry

native
Tree, Shrub

2021 Mike Russler

2020 Diane Etchison

2022 El Byrne

Sambucus nigra Black elderberry

native
Shrub

2018 Michelle Tollett

2013 Jason Matthias Mills

2018 Hilary Tayeb

Sambucus caerulea Blue elderberry

native
Shrub

2020 Diane Etchison

2021 Richard Spjut

2016 Chris Leslie

Sambucus canadensis Blue elderberry

native
Shrub

2020 Diane Etchison

2021 Richard Spjut

2016 Chris Leslie

Sambucus cerulea Blue elderberry

native
Shrub

2020 Diane Etchison

2021 Richard Spjut

2016 Chris Leslie

Sambucus nigra ssp. canadensis Blue elderberry

native
Shrub

2020 Diane Etchison

2021 Richard Spjut

2016 Chris Leslie

Sambucus nigra ssp. cerulea Blue elderberry

native
Shrub

2020 Diane Etchison

2021 Richard Spjut

2016 Chris Leslie

Sambucus racemosa Red elderberry

native
Shrub

2017 James Gonsman

2014 James Gonsman

2020 Bob Sweatt

Sambucus melanocarpa Rocky mountain elder

native
Shrub

Geoff Burleigh

2016 Jason Matthias Mills

Sambucus racemosa var. melanocarpa Rocky mountain elder

native
Shrub

Geoff Burleigh

2016 Jason Matthias Mills

Sambucus pubens Pacific red elderberry

native
Shrub

2021 R.A. Chasey

2017 James Gonsman

2014 James Gonsman

Sambucus racemosa var. racemosa Pacific red elderberry

native
Shrub

2021 R.A. Chasey

2017 James Gonsman

2014 James Gonsman

Samolus parviflorus Water pimpernel

native
Perennial herb

THEOPHRASTACEAE

2023 Ron Vanderhoff

2022 Catherine Chang

Sanguisorba officinalis Great burnet, Official burnet

• rare native
Perennial herb (rhizomatous)

2008 Keir Morse

2013 Asa Spade

Sanicula arctopoides Footsteps of spring, Yellow mats

native
Perennial herb

2019 Eliezer Margolis

2017 James Gonsman

Sanicula arguta Sharp toothed sanicle, Sharp toothed snakeroot, Sharptooth blacksnakeroot

native
Perennial herb

2022 Ron Vanderhoff

2017 Diane Etchison

2006 Steve Matson

Sanicula bipinnata Poison sanicle

native
Perennial herb

2008 Steve Matson

2022 R.A. Chasey

Sanicula bipinnatifida Purple sanicle, Snakeroot, Purple Sanicle, Shoe Buttons

native
Perennial herb

2019 Diane Etchison

2018 Gary McDonald

2021 Robin Carter

Sanicula bipinnatifida var. flava Purple sanicle, Snakeroot, Purple Sanicle, Shoe Buttons

native
Perennial herb

2019 Diane Etchison

2018 Gary McDonald

2021 Robin Carter

Sanicula crassicaulis Gamble weed, Pacific blacksnakeroot, Pacific sanicle

native
Perennial herb

2023 Steve Conger

2021 Steve Laymon

Sanicula graveolens Northern sanicle, Sierra sanicle

native
Perennial herb

2021 Steve Matson

2020 Bob Sweatt

2004 Steve Matson

Sanicula hoffmannii Hoffmann's blacksnakeroot, Hoffmann's sanicle, Hoffmann's snakeroot

• rare native
Perennial herb

2019 Ken Hickman

2015 David Wolfson

2018 Ken Hickman

Sanicula laciniata Coast sanicle, Coastal blacksnakeroot

native
Perennial herb

2022 Diane Renshaw

2022 R.A. Chasey

2018 Ken Hickman

Sanicula maritima Adobe sanicle, Adobe snakeroot

• rare native
Perennial herb

2019 David Wolfson

2021 Kristen Nelson

Sanicula peckiana Peck's blacksnakeroot, Peck's sanicle

• rare native
Perennial herb

2017 Steve Matson

Sanicula saxatilis Devil's blacksnakeroot, Diablo sanicle, Rock sanicle

• rare native
Perennial herb

2015 Ken Hickman

2021 R.A. Chasey

2023 R.A. Chasey

Sanicula tracyi Tracy's blacksnakeroot, Tracy's sanicle

• rare native
Perennial herb

2019 Gabe Cashman

2007 Dean Wm. Taylor, Ph.D.

2014 Zoya Akulova

Sanicula tuberosa Tuberous sanicle, Turkey pea

native
Perennial herb

2023 R.A. Chasey

Sanionia uncinata Sanionia moss

non-native
Moss

AMBLYSTEGIACEAE

Santolina chamaecyparissus Lavender cotton

non-native
Shrub

2012 Richard Spellenberg

2006 Luigi Rignanese

Sanvitalia abertii Abert's sanvitalia, Abert's creeping zinnia

• rare native
Annual herb

2014 Kathi Ellsworth

2010 James M. Andre

2012 Keir Morse

Sanvitalia procumbens Mexican creeping zinnia

non-native
Annual herb

2006 Louis-M. Landry

2005 Louis-M. Landry

Saponaria officinalis Bouncing bet, Bouncingbet, Soapwort

• invasive non-native
Perennial herb

2022 Mike Russler

Sarcobatus baileyi Bailey's greasewood

• rare native
Shrub

SARCOBATACEAE

2009 Gary A. Monroe

Sarcobatus vermiculatus Black greasewood

native
Shrub

SARCOBATACEAE

2022 Steve Matson

2021 Bob Sweatt

Sarcodes sanguinea Snow plant, Snowplant

native
Perennial herb (mycoparasitic)

2014 Jim Moore

2020 Matt Berger

2013 Brent Morgan

Sarracenia alata Yellow trumpets

non-native
Perennial herb (stem succulent)

Sarracenia purpurea Purple pitcherplant, Purple sarracenia

non-native
Perennial herb (stem succulent)

2002 Bj�rnar Olsen

2006 Louis-M. Landry

Sarracenia purpurea ssp. purpurea Purple pitcherplant, Purple sarracenia

non-native
Perennial herb (stem succulent)

2002 Bj�rnar Olsen

2006 Louis-M. Landry

Sarracenia purpurea ssp. venosa Purple sarracenia

non-native
Perennial herb (stem succulent)

2008 Forbes Conrad

2006 Barry Rice

Sarracenia purpurea ssp. venosa var. montana Purple sarracenia

non-native
Perennial herb (stem succulent)

Sarracenia purpurea ssp. venosa var. montana

2008 Forbes Conrad

2006 Barry Rice

Sarracenia rubra ssp. alabamensis Sweet pitcherplant

non-native
Perennial herb, Shrub

Sarracenia rubra ssp. gulfensis Sweet pitcherplant

non-native
Perennial herb, Shrub

Sarracenia rubra ssp. rubra Sweet pitcherplant

non-native
Perennial herb, Shrub

Satureja hortensis Summer savory

non-native
Perennial herb

Saussurea americana American saw wort

• rare native
Perennial herb

2003 Norman Jensen

2019 Matt C. Berger

2010 Norman Jensen

Saxifraga caespitosa Tufted saxifrage

• rare native
Perennial herb

2023 Dana York

Saxifraga cespitosa Tufted saxifrage

• rare native
Perennial herb

2023 Dana York

Saxifraga hyperborea Pygmy saxifrage

native
Perennial herb

2011 Ryan Batten

1982 Dean Wm. Taylor

Saxifraga rivularis Pygmy saxifrage

native
Perennial herb

2011 Ryan Batten

1982 Dean Wm. Taylor

Saxifraga mertensiana Wood saxifrage

native
Perennial herb

2024 Mary Ann Machi

2023 Mary Ann Machi

2020 Mary Ann Machi

Saxifraga rufidula Rusty saxifrage, Rustyhair saxifrage

native
Perennial herb (rhizomatous)

2007 Gerald D. Carr

Saxifraga stolonifera Creeping saxifrage, Strawberry geranium

non-native
Perennial herb

Charles Webber1998 California Academy of Sciences

Saxifragopsis fragarioides Strawberry saxifrage

native
Perennial herb

2019 Matt Berger

2019 Steve Matson

Scabiosa atropurpurea Pincushion flower, Pincushion plant, Pincushions

• invasive non-native
Annual herb

2021 Ken Lunders

2021 Mike Russler

2021 Eric Wrubel

Scabiosa atropurpurea var. maritima Pincushion flower, Pincushion plant, Pincushions

• invasive non-native
Annual herb

2021 Ken Lunders

2021 Mike Russler

2021 Eric Wrubel

Scandix pecten-veneris Shepherd's needle, Shepherdsneedle, Venus' needle

non-native
Annual herb, Vine

2006 Steve Matson

2018 Stacie Wolny

2006 Steve Matson

Botrychium multifidum Leather grape-fern

native
fern

2023 Cynthia Powell

2021 R.A. Chasey

2020 Jonathan Lee

Sceptridium multifidum Leather grape-fern

native
fern

2023 Cynthia Powell

2021 R.A. Chasey

2020 Jonathan Lee

Schedonnardus paniculatus Tumblegrass

non-native
Perennial grass

2011 Steve Matson

Schefflera actinophylla Octopus tree

non-native
Vine

Scheuchzeria palustris Rannoch rush

• rare native
Perennial herb (rhizomatous)

SCHEUCHZERIACEAE

2006 Steve Matson

Schinus molle Peruvian pepper tree, Peruvian peppertree

• invasive non-native
Tree

2021 stephen rosenthal

2017 William McCarey

2023 Ron Vanderhoff

Schinus polygamus Hardee peppertree

non-native
Tree, Shrub

2018 Ron Vanderhoff

2020 Ron Vanderhoff

2021 Ron Vanderhoff

Schinus terebinthifolius Brazilian pepper tree, Brazilian peppertree

• invasive non-native
Tree, Shrub

2019 Ron Vanderhoff

2022 Ron Vanderhoff

2017 Angelique Herman

Schismus arabicus Arabian schismus, Mediterranean grass

• invasive non-native
Annual grass

2020 Ron Vanderhoff

2017 James Bailey

2022 Katherine Stratton

Schismus barbatus Common mediterranean grass, Old han schismus

• invasive non-native
Annual grass

2022 Ron Vanderhoff

Schoenoplectus acutus Hardstem bulrush

native
Perennial grasslike herb

2015 Steve Matson

Schoenoplectus acutus var. occidentalis Tule

native
Perennial grasslike herb

2019 Steve Matson

Schoenoplectus americanus Chairmaker's bulrush

native
Perennial grasslike herb

2021 Ron Vanderhoff

2016 Joan Hampton

2020 Ron Vanderhoff

Schoenoplectus californicus California bulrush

native
Perennial grasslike herb

2022 John Rawlings

2021 Ron Vanderhoff

Schoenoplectus fluviatilis River bulrush

native
Perennial grasslike herb

2010 Louis-M. Landry

Schoenoplectus mucronatus Bog bulrush

non-native
Perennial grasslike herb

2004 Steve Matson

2001 CDFA

Schoenoplectus pungens Common threesquare

native
Perennial grasslike herb

2008 Steve Matson

2022 John Rawlings

2022 Cynthia Powell

Schoenoplectus pungens var. longispicatus Common threesquare

native
Perennial grasslike herb

Schoenoplectus pungens var. longispicatus

2008 Steve Matson

Schoenoplectus saximontanus Rocky mountain bulrush

native
Annual grasslike herb

2004 Steve Matson

Schoenoplectus subterminalis Swaying bulrush

• rare native
Perennial grasslike herb (rhizomatous)

2014 David popp

2013 Sierra Pacific Industries

1996 Dean Wm. Taylor

Schoenoplectus tabernaemontani Softstem bulrush

native
Perennial grasslike herb

2008 Louis-M. Landry

2005 Louis-M. Landry

Schoenus nigricans Black bogrush, Black sedge

• rare native
Perennial grasslike herb

2006 Trent M. Draper

Scirpus atrovirens Green bulrush

non-native
Perennial grasslike herb

Scirpus congdonii Congdon's bulrush

native
Perennial grasslike herb

2022 R.A. Chasey

Scirpus cyperinus Woolgrass

non-native
Perennial grasslike herb

2016 Robert Carr

2016 Robert L. Carr

2016 Robert Carr

Scirpus diffusus Diffuse rush, Umbrella bulrush

native
Perennial grasslike herb

2006 Dean Wm. Taylor, Ph.D.

2004 Steve Matson

Scirpus microcarpus Panicled bulrush, Small fruited bulrush

native
Perennial grasslike herb

2022 Doug Allshouse

2008 Steve Matson

2013 Ron Vanderhoff

Scirpus pendulus Drooping bulrush, Rufous bulrush

• rare native
Perennial grasslike herb

2007 Keir Morse

Scleranthus annuus ssp. annuus German knotgrass, Knawel, Scleranthus

non-native
Annual herb

2021 Steve Matson

Echinomastus johnsonii Johnson's devil claw, Johnson's fishhook cactus

• rare native
Shrub (stem succulent)

2022 Laura Cunningham

2015 Patrick Donnelly

2016 Patrick Donnelly

Sclerocactus johnsonii Johnson's devil claw, Johnson's fishhook cactus

• rare native
Shrub (stem succulent)

2022 Laura Cunningham

2015 Patrick Donnelly

2016 Patrick Donnelly

Sclerocactus polyancistrus Mojave fish hook cactus, Redspined fishhook cactus

• rare native
Shrub (stem succulent)

2007 Steve Matson

Sclerolinon digynum Digynum flax

native
Annual herb

2020 Bob Sweatt

2019 Bob Sweatt

Scleropogon brevifolius Burro grass, Burrograss

• rare native
Perennial grass

2013 Duncan S. Bell

Scoliopus bigelovii California fetid adderstongue, Fetid adder's tongue, Slink pod

native
Perennial herb

2024 William Blaker

2020 Timothy Boomer

2023 Mary Ann Machi

Scolymus hispanicus Common goldenthistle, Golden thistle

• invasive non-native
Perennial herb

2004 Dr. Amadej Trnkoczy

2001 CDFA

Scopulophila rixfordii Rixford's rock wort, Rixford's rockwort

native
Perennial herb

2020 Matt Berger

2005 Steve Matson

2010 James M. Andre

Scouleria aquatica Blackmat splashzone moss

native
Moss

SCOULERIACEAE

Scouleria marginata Marginate splashzone moss

native
Moss

SCOULERIACEAE

Scribneria bolanderi Scribner's grass, Scribneria

native
Annual grass

2022 John Rawlings

2020 Ken Hickman

2023 R.A. Chasey

Scrophularia atrata Black flowered figwort, Darkflowered figwort

• rare native
Perennial herb

2020 David Wolfson

2018 David Wolfson

2017 Gloria Hollahan

Scrophularia californica California bee plant, California figwort

native
Perennial herb

2020 Bob Sweatt

2006 Steve Matson

2019 Cynthia Powell

Scrophularia desertorum Desert figwort

native
Perennial herb

2017 Wendy Walker

2024 Bob Steele

2012 Steve Matson

Scrophularia lanceolata Lanceleaf figwort, Mountain figwort

native
Perennial herb

2020 Susan McDougall

2022 Dana York

Scrophularia peregrina Mediterranean figwort

non-native
Annual herb

2017 James Bailey

2007 Luigi Rignanese

Scrophularia villosa Santa catalina figwort

• rare native
Shrub

2011 Dylan Neubauer

Scutellaria antirrhinoides Nose skullcap, Snapdragon skullcap

native
Perennial herb

2017 Steve Matson

Scutellaria bolanderi Bolander's skullcap, Sierra skullcap

native
Perennial herb

2005 Keir Morse

2013 Ron Vanderhoff

Scutellaria bolanderi ssp. austromontana Southern skullcap

• rare native
Perennial herb (rhizomatous)

Scutellaria bolanderi ssp. austromontana

2013 Ron Vanderhoff

2018 Ron Vanderhoff

Scutellaria bolanderi ssp. bolanderi Bolander's skullcap, Sierra skullcap

native
Perennial herb

2022 Mike Russler

Scutellaria californica California skullcap

native
Perennial herb

2016 Steve Matson

2020 Bob Sweatt

2022 Ken-ichi Ueda

Scutellaria epilobiifolia Marsh skullcap

• rare native
Perennial herb (rhizomatous)

2006 Steve Matson

2021 Scott Yarger

2006 Steve Matson

Scutellaria galericulata Marsh skullcap

• rare native
Perennial herb (rhizomatous)

2006 Steve Matson

2021 Scott Yarger

2006 Steve Matson

Scutellaria lateriflora Blue skullcap, Mad dog skullcap

• rare native
Perennial herb (rhizomatous)

2010 Louis-M. Landry

2017 Julie Watson

2019 Julie Ann Watson

Salazaria mexicana Mexican bladdersage, Paperbag bush

native
Shrub

2006 Steve Matson

2019 Diane Etchison

2017 Thomas Egan

Scutellaria mexicana Mexican bladdersage, Paperbag bush

native
Shrub

2006 Steve Matson

2019 Diane Etchison

2017 Thomas Egan

Scutellaria nana Dwarf skullcap, Little skullcap

native
Perennial herb (rhizomatous)

2006 Steve Matson

2022 Julie A. Kierstead

Scutellaria angustifolia Curve flowered skullcap, Gray leaved skullcap, Grayleaf skullcap

native
Perennial herb

2016 Steve Matson

Scutellaria siphocampyloides Curve flowered skullcap, Gray leaved skullcap, Grayleaf skullcap

native
Perennial herb

2016 Steve Matson

Scutellaria tuberosa Danny's skullcap, Scullcap

native
Perennial herb

2006 Steve Matson

Rhus lancea African sumac

non-native
Tree

2018 Ron Vanderhoff

2016 Ron Vanderhoff

2021 Ron Vanderhoff

Searsia lancea African sumac

non-native
Tree

2018 Ron Vanderhoff

2016 Ron Vanderhoff

2021 Ron Vanderhoff

Secale cereale Cereal rye

non-native
Annual grass

2022 Joy England

2011 Steve Matson

2008 Louis-M. Landry

Sedella leiocarpa Lake county stonecrop

• rare native
Annual herb

2008 Cherilyn Burton

Sedella pentandra Mt. Hamilton mock stonecrop

native
Annual herb

2019 David Greenberger

2017 Rebecca Schoenenberger

2019 Adam Chasey

Parvisedum pumilum Sierra mock stonecrop

native
Annual herb

2005 Steve Matson

2021 R.A. Chasey

2022 Steve Matson

Sedella pumila Sierra mock stonecrop

native
Annual herb

2005 Steve Matson

2021 R.A. Chasey

2022 Steve Matson

Sedum albomarginatum Feather river stonecrop

• rare native
Perennial herb

2016 David popp

2022 Ryan O'Dell

Sedum album White stonecrop

non-native
Perennial herb

2005 Dr. Amadej Trnkoczy

2022 Donald Burk

Sedum album var. micranthum White stonecrop

non-native
Perennial herb

2005 Dr. Amadej Trnkoczy

2022 Donald Burk

Sedum citrinum Blue creek stonecrop

• rare native
Perennial herb

2019 Jonathan Lee

2014 Peter Zika

Sedum divergens Cascade stonecrop, Pacific stonecrop

• rare native
Perennial herb

2019 Zoya Akulova

2007 Matt Below

Sedum laxum ssp. eastwoodiae Red mountain sedum, Red mountain stonecrop, Red mtn. stonecrop

native
Perennial herb

2014 Carex Working Group

2003 BLM,Arcata Field Office

Sedum lanceolatum Lance leaf stonecrop, Spearleaf stonecrop

native
Perennial herb

2014 Steve Matson

2020 Bob Sweatt

2015 Cynthia Powell

Sedum laxum Rose flowered stonecrop, Roseflower stonecrop

native
Perennial herb

2021 Steve Conger

Sedum laxum ssp. flavidum Rose flowered stonecrop, Roseflower stonecrop

native
Perennial herb

2021 Steve Conger

Sedum heckneri Heckner's stonecrop

• rare native
Perennial herb

2019 Matt Berger

Sedum laxum ssp. heckneri Heckner's stonecrop

• rare native
Perennial herb

2019 Matt Berger

Sedum laxum ssp. laxum Rose flowered stonecrop, Roseflower stonecrop

native
Perennial herb

2023 Dana York

2008 Ray Stephenson

Sedum niveum Davidson's stonecrop

• rare native
Perennial herb (rhizomatous)

2014 Deborah Dozier

2015 Keir Morse

2006 Chris Wagner, SBNF

Sedum oblanceolatum Applegate stonecrop, Oblongleaf stonecrop

• rare native
Perennial herb

2023 Julie A. Kierstead

Sedum obtusatum Sierra stonecrop

native
Perennial herb

2020 Bob Sweatt

2022 Mike Russler

2020 Bob Sweatt

Sedum obtusatum ssp. boreale Sierra gormania, Small flowered sierra stonecrop

native
Perennial herb

2021 Jamie Spielmann

2017 David popp

2012 Barry Rice

Sedum obtusatum ssp. obtusatum Sierra stonecrop

native
Perennial herb

2008 Steve Matson

Sedum obtusatum ssp. retusum Klamath stonecrop, Sierra stonecrop

native
Perennial herb

2014 Carex Working Group

Sedum oreganum Oregon stonecrop

native
Perennial herb

2009 Leigh Johnson

2005 Jerry Murray

Sedum oreganum ssp. tenue Oregon stonecrop

native
Perennial herb

2009 Leigh Johnson

2005 Jerry Murray

Sedum oreganum var. oreganum Oregon stonecrop

native
Perennial herb

2009 Leigh Johnson

2005 Jerry Murray

Sedum oregonense Cream stonecrop

native
Perennial herb

2021 Julie A. Kierstead

2021 Steve Matson

Sedum obtusatum ssp. paradisum Canyon creek stonecrop

native
Perennial herb

2009 Dana York

Sedum paradisum Canyon creek stonecrop

native
Perennial herb

2009 Dana York

Sedum paradisum ssp. paradisum

native
Perennial herb

2016 Steve Matson

2015 Dana York

Sedum dendroideum Green cockscomb

non-native
Perennial herb

2020 Doug Allshouse

2019 Ron Vanderhoff

Sedum radiatum Coast range stonecrop

native
Annual herb

2017 Steve Matson

Sedum sanhedrinum Sanhedrin stonecrop

native
Perennial herb

2014 Peter Zika

2013 Carex Working Group

2014 Peter Zika

Sedum spathulifolium Broadleaf stonecrop, Pacific stonecrop, Stone crop

native
Perennial herb

2021 Steve Matson

2023 R.A. Chasey

Sedum stenopetalum Narrow leaf stonecrop, Wormleaf stonecrop

native
Perennial herb

2022 Steve Matson

Selaginella arizonica Arizona spikemoss

native
Fern (rhizomatous)

Selaginella asprella Bluish spike moss, Bluish spikemoss

• rare native

2023 R.A. Chasey

2023 Mike Russler

Selaginella bigelovii Bigelow's moss fern, Bigelow's spike moss, Bushy spikemoss

native

2019 Ron Vanderhoff

2018 Ron Vanderhoff

Selaginella cinerascens Ashy spike moss, Mesa spikemoss

• rare native

2015 Ron Vanderhoff

2015 Keir Morse

2017 Katie Gallagher

Selaginella densa Lesser spikemoss

native

2016 Keir Morse

University and Jepson Herbaria

Selaginella eremophila Desert spike moss, Desert spikemoss

• rare native

2020 Ron Vanderhoff

2019 Matt Berger

2020 Matt Berger

Selaginella hansenii Hansen's spike moss, Hansen's spikemoss

native

2021 Steve Matson

2020 Matt Berger

2021 Steve Matson

Selaginella kraussiana Krauss' spikemoss

non-native

2023 Dana York

Selaginella leucobryoides Mojave spike moss, Mojave spikemoss

• rare native

2020 Matt Berger

Selaginella oregana Oregon spike moss, Oregon spikemoss

native

2021 Dana York

2018 Susan McDougall

Selaginella scopulorum Rocky mountain spike-moss

• rare native

2014 Dana York

2018 Gerald Carr

Selaginella wallacei Wallace moss fern, Wallace's spike moss, Wallace's spikemoss

native

2011 Steve Matson

2019 David popp

Selaginella watsonii Watson's spike moss, Watson's spikemoss

native

2019 Matt Berger

2019 Bob Sweatt

Senecio aphanactis California groundsel, Chaparral ragwort, Rayless ragwort

• rare native
Annual herb

2019 Matt Berger

2022 R.A. Chasey

Senecio aronicoides California butterweed, California groundsel, California rayless butterweed

native
Perennial herb

2020 Helen Hancock

2008 Steve Matson

2020 Julie A. Kierstead

Senecio blochmaniae Dune ragwort

• rare native
Shrub

2020 David Wolfson

2020 David Greenberger

2013 Anuja Parikh and Nathan Gale

Senecio californicus California butterweed, California groundsel, California ragwort

native
Annual herb

2019 Diane Etchison

2023 Ron Vanderhoff

2022 Ron Vanderhoff

Senecio clarkianus Clark's ragwort

native
Perennial herb

2016 Richard Spjut

2022 Mike Russler

2019 Richard Spjut

Senecio elegans Redpurple ragwort

non-native
Annual herb

2015 Toni Corelli

2012 Michael Perlmutter

2009 Toni Corelli

Senecio flaccidus Shrubby ragwort, Threadleaf ragwort

native
Shrub

2019 Ron Vanderhoff

2020 Steve Matson

2021 Mike Russler

Senecio flaccidus var. flaccidus Shrubby ragwort, Threadleaf ragwort

native
Shrub

2019 Ron Vanderhoff

2020 Steve Matson

2021 Mike Russler

Senecio flaccidus var. monoense Shrubby ragwort, Threadleaf ragwort

native
Shrub

2019 Ron Vanderhoff

2020 Steve Matson

2021 Mike Russler

Senecio flaccidus var. douglasii Bush groundsel, Bush senecio, Douglas' groundsel

native
Shrub

2018 Richard Spjut

2019 Ron Vanderhoff

2023 Helen Hancock

Senecio flaccidus var. monoensis Mono groundsel, Mono ragwort

native
Shrub

2020 Steve Matson

Senecio fremontii Dwarf mountain ragwort, Fremont's groundsel

native
Perennial herb

2022 Dana York

2022 Bob Sweatt

2022 R.A. Chasey

Senecio fremontii ssp. blitoides Dwarf mountain ragwort, Fremont's groundsel

native
Perennial herb

2022 Dana York

2022 Bob Sweatt

2022 R.A. Chasey

Senecio fremontii var. fremontii Dwarf mountain ragwort, Fremont's groundsel

native
Perennial herb

2022 Dana York

2002 Gary A. Monroe

2022 Dana York

Senecio fremontii var. occidentalis Dwarf mountain ragwort, Western fremont's groundsel

native
Perennial herb

2019 Bob Sweatt

2007 Steve Matson

Senecio glomeratus Cutleaf burnweed

• invasive non-native
Annual, Perennial herb

2015 Lynn Overtree

2023 R.A. Chasey

2021 Mary Conway

Senecio hydrophiloides Sweet marsh ragwort, Tall groundwel

• rare native
Perennial herb

2004 Steve Matson

Senecio hydrophilus Alkali marsh ragwort, Water groundsel, Water ragwort

native
Perennial herb

2022 Morgan Stickrod

2021 Cynthia Powell

2022 Mike Russler

Senecio integerrimus Lambstongue ragwort, Mountain butterweed

native
Perennial herb

2022 Steve Conger

2022 Paul Watts

2019 Matt Berger

Senecio lugens Lambstongue ragwort, Mountain butterweed

native
Perennial herb

2022 Steve Conger

2022 Paul Watts

2019 Matt Berger

Senecio integerrimus var. exaltatus Columbia mountain butterweed, Columbia ragwort, Groundsel

native
Perennial herb

2021 Paul Watts

2021 Jamie Spielmann

2019 Matt Berger

Senecio integerrimus var. major Lambstongue groundsel, Lambstongue ragwort

native
Perennial herb

2003 Steve Matson

Senecio integerrimus var. ochroleucus Paleyellow ragwort, White flowered mountain butterweed

native
Perennial herb

2018 Susan McDougall

Senecio jacobaea Stinking willie, Tansy ragwort

• invasive non-native
Perennial herb

2022 Michael Weldon

2018 Jennifer Mo

Senecio linearifolius var. linearifolius Linear-leaved australian fireweed

non-native
Annual, Perennial herb

Senecio linearifolius var. linearifolius

2019 Ron Vanderhoff

2018 Ron Vanderhoff

2021 Ron Vanderhoff

Senecio lyonii Island senecio, Lyon's ragwort

native
Shrub

Geoff Burleigh

Erechtites minima Coastal burnweed

non-native
Annual, Perennial herb

2012 Michael Mitchell

Senecio minimus Coastal burnweed

non-native
Annual, Perennial herb

2012 Michael Mitchell

Senecio mohavensis Mojave groundsel, Mojave ragwort

native
Annual herb

2020 David Greenberger

2019 Matt Berger

2016 Steve Matson

Senecio pattersonensis Mono ragwort, Patterson's senecio

• rare native
Perennial herb (rhizomatous)

2020 Paul Hankamp

2008 Paul Preston

Senecio scorzonella Sierra ragwort

native
Perennial herb

2016 Steve Matson

Senecio serra Tall ragwort

native
Perennial herb

2021 Bob Sweatt

2020 Mary Merriman

2021 Bob Sweatt

Senecio serra var. admirabilis Tall ragwort

native
Perennial herb

2021 Bob Sweatt

2020 Mary Merriman

2021 Bob Sweatt

Senecio serra var. serra Tall ragwort

native
Perennial herb

2007 Steve Matson

Senecio spartioides Broom groundsel, Broomlike ragwort

native
Perennial herb

2015 Steve Matson

2007 Steve Matson

2012 Steve Matson

Senecio spartioides var. multicapitatus Broom groundsel, Broomlike ragwort

native
Perennial herb

2015 Steve Matson

2007 Steve Matson

2012 Steve Matson

Senecio squalidus Oxford ragwort

• invasive non-native
Perennial herb

2007 Dr. Amadej Trnkoczy

Senecio sylvaticus Woodland groundsel, Woodland ragwort

non-native
Annual herb

2019 Matt Berger

2020 Julie A. Kierstead

Senecio triangularis Arrow leaved ragwort, Arrowhead butterweed, Arrowleaf ragwort

native
Perennial herb

2019 Charles Russell

2019 Bob Sweatt

2003 Steve Matson

Senecio vulgaris Common groundsel, Old man in the spring, Old man of spring

non-native
Annual herb

2017 Barbara Boethling

2019 Ron Vanderhoff

2021 Toni Corelli

Acacia greggii Catclaw, devil's claw

native
Shrub

2021 Ron Vanderhoff

2020 Susan McDougall

2019 David Greenberger

Senegalia greggii Catclaw, devil's claw

native
Shrub

2021 Ron Vanderhoff

2020 Susan McDougall

2019 David Greenberger

Senna alata Emperor's candlesticks

non-native
Annual herb, Perennial herb, Shrub

Jules Strauss2004 California Academy of Sciences

2010 Moorea Biocode

Senna armata Desert senna, Spiny senna

native
Shrub

2020 Lynn Sweet

2023 Mike Russler

Cassia artemisioides Silver senna

non-native
Shrub

2023 Ron Vanderhoff

2019 Kristin Sabo

2023 Ron Vanderhoff

Senna artemisioides Silver senna

non-native
Shrub

2023 Ron Vanderhoff

2019 Kristin Sabo

2023 Ron Vanderhoff

Senna covesii Coves' cassia, Coves's cassia

• rare native
Perennial herb

2018 Paul Hankamp

2010 James M. Andre

2019 Bonnie Nickel

Cassia didymobotrya African senna, African wild cassia

non-native
Shrub

2021 Ron Vanderhoff

2016 Ron Vanderhoff

2021 Ron Vanderhoff

Senna didymobotrya African senna, African wild cassia

non-native
Shrub

2021 Ron Vanderhoff

2016 Ron Vanderhoff

2021 Ron Vanderhoff

Senna marilandica Maryland senna

non-native
Shrub

2008 Louis-M. Landry

Senna multiglandulosa Glandular cassia

non-native
Shrub

2011 Neal Kramer

2014 Wynn Anderson

2011 Neal Kramer

Senna obtusifolia Blunt leafed senna, Java bean

• invasive non-native
Annual, Perennial herb

2010 Dr. Mark S. Brunell

2010 Moorea Biocode

Sequoia sempervirens Coast redwood

native
Tree

2019 Patrick Furtado

2022 David Strauch

2019 R.A. Chasey

Sequoiadendron giganteum Giant sequoia, Sierra redwood, big tree

native
Tree

2019 Cathy Capone

2022 Mary Merriman

2021 Rico Ramirez

Sericocarpus oregonensis Oregon whitetop aster

native
Perennial herb

2004 Steve Matson

2010 Steve Matson

Aster oregonensis ssp. californicus Oregon whitetop aster

native
Perennial herb

2020 Jacob Smith

Sericocarpus oregonensis ssp. californicus Oregon whitetop aster

native
Perennial herb

Sericocarpus oregonensis ssp. californicus

2020 Jacob Smith

Sericocarpus oregonensis var. californicus Oregon whitetop aster

native
Perennial herb

Sericocarpus oregonensis var. californicus

2020 Jacob Smith

Sericocarpus oregonensis ssp. oregonensis Oregon whitetop aster

native
Perennial herb

Sericocarpus oregonensis ssp. oregonensis

2015 David popp

2015 Richard Spellenberg

Sesbania exaltata Bigpod sesbania

native
Annual herb

2018 Meg Devine

2009 Barry Rice

Sesbania herbacea Bigpod sesbania

native
Annual herb

2018 Meg Devine

2009 Barry Rice

Sesbania punicea Red sesbania, Rattlebox

• invasive non-native
Shrub

2020 Jennifer Mo

2017 Ellen Uhler

2021 HARDEEP BAINS

Sesuvium verrucosum Verrucose seapurslane, Western sea purslane

native
Perennial herb

2019 Ron Vanderhoff

2020 R.A. Chasey

2018 Ron Vanderhoff

Setaria adhaerens Bur bristlegrass

non-native
Annual grass

2018 Ron Vanderhoff

2022 Ron Vanderhoff

Setaria faberi Foxtail, Japanese bristlegrass

• invasive non-native
Annual grass

2007 Robert E. Preston, Ph.D.

2008 Louis-M. Landry

Setaria italica Foxtail bristlegrass

non-native
Annual grass

2011 Zoya Akulova

Setaria leucopila Streambed bristlegrass

non-native
Annual grass

Setaria megaphylla Bigleaf bristlegrass

non-native
Annual grass

Setaria palmifolia Palmgrass

non-native
Annual grass

Setaria parviflora Marsh bristlegrass

native
Perennial grass

2018 Ron Vanderhoff

2019 Ron Vanderhoff

2023 Donald Burk

Setaria pumila Yellow bristlegrass

non-native
Annual grass

2017 Peter Warner

2016 Thomas Reyes

2017 Peter Warner

Setaria glauca Yellow foxtail

non-native
Annual grass

2017 Peter Warner

2014 Neal Kramer

2008 Louis-M. Landry

Setaria pumila ssp. pumila Yellow foxtail

non-native
Annual grass

2017 Peter Warner

2014 Neal Kramer

2008 Louis-M. Landry

Setaria sphacelata var. anceps African bristlegrass

non-native
Perennial grass

2011 Zoya Akulova

Setaria verticillata Hooked bristlegrass

non-native
Annual grass

2021 Ron Vanderhoff

Setaria viridis Green bristlegrass, Green foxtail

non-native
Annual grass

2017 Ron Vanderhoff

2012 Zoya Akulova-Barlow

2021 David popp

Setaria viridis ssp. pachystachys Green bristlegrass, Green foxtail

non-native
Annual grass

2017 Ron Vanderhoff

2012 Zoya Akulova-Barlow

2021 David popp

Setaria viridis var. viridis Green bristlegrass, Green foxtail

non-native
Annual grass

2017 Ron Vanderhoff

2012 Zoya Akulova-Barlow

2021 David popp

Shepherdia argentea Buffalo berry, Silver buffaloberry

native
Tree, Shrub

ELAEAGNACEAE

2019 Bryant Baker

2013 Steve Matson

2019 Bryant Baker

Shepherdia canadensis Russet buffaloberry

• rare native
Tree, Shrub

ELAEAGNACEAE

2014 Steve Matson

Sherardia arvensis Blue fieldmadder, Field madder

non-native
Annual herb

2005 Steve Matson

2008 Steve Matson

Sibara deserti Desert rock cress, Desert winged rockcress

• rare native
Annual herb

2020 Matt Berger

2019 Matt Berger

Sibara filifolia Island rockcress, Santa cruz island rock cress, Santa cruz island winged rockcress

• rare native
Annual herb

2008 Kim M. Klementowski

2011 Neal Kramer

Sibaropsis hammittii Hammitt's claycress

• rare native
Annual herb

2016 Ron Vanderhoff

2019 Ron Vanderhoff

2012 Ron Vanderhoff

Sibbaldia procumbens Creeping sibbaldia, Sibbaldia

native
Perennial herb

2017 Steve Matson

2020 Bob Sweatt

2005 Steve Matson

Sida abutifolia Spreading fanpetals

non-native
Annual herb

2006 Matt Below

Robert Potts2001 California Academy of Sciences

Sida rhombifolia Cuban jute

non-native
Annual herb

2020 Debra Valov

2010 Moorea Biocode

Sidalcea asprella ssp. asprella Harsh checkerbloom, sierra foothills checkerbloom

native
Perennial herb

2019 Verna Jigour

2007 Dr. Mark S. Brunell

Sidalcea malviflora ssp. asprella Harsh checkerbloom, sierra foothills checkerbloom

native
Perennial herb

2019 Verna Jigour

2007 Dr. Mark S. Brunell

Sidalcea calycosa Annual checkerbloom, Checker mallow, Pt. reyes sidalcea

native
Annual herb

2016 Jim Bearden

2019 David popp

Sidalcea calycosa ssp. calycosa Annual checkerbloom, Checker mallow

native
Annual herb

2022 David popp

2022 Ryan O'Dell

2004 Carol W. Witham

Sidalcea calycosa ssp. rhizomata Point reyes checkerbloom, Pt. reyes checkerbloom, Pt. reyes sidalcea

• rare native
Perennial herb (rhizomatous)

2023 Suzanne L. Weakley

2022 Julia Larke

2024 Christine Pechal

Sidalcea celata Redding checkerbloom

• rare native
Perennial herb

2022 Donald Burk

2023 Donald Burk

Sidalcea covillei Owens valley checkerbloom, Owens valley sidalcea

• rare native
Perennial herb

2020 Steve Matson

Sidalcea diploscypha Fringed checker mallow, Fringed checkerbloom, Fringed sidalcea

native
Annual herb

2022 William Lundgren

2016 Jennifer Wheeler

2021 Cynthia Powell

Sidalcea gigantea Giant checkerbloom

• rare native
Perennial herb

2017 Dan Lubin

2019 Julie A. Kierstead

Sidalcea glaucescens Glaucous checker mallow, Waxy checkerbloom, Waxy checkermallow

native
Perennial herb

2021 Mike Russler

Sidalcea hartwegii Hartweg sidalcea, Hartweg's checkerbloom, Valley checkerbloom

native
Annual herb

2017 David Greenberger

2022 Mike Russler

Sidalcea hendersonii Henderson's checkerbloom

non-native
Perennial herb (rhizomatous)

Sidalcea hickmanii ssp. anomala Cuesta pass checkerbloom

• rare native
Perennial herb

2020 David Greenberger

2006 Doreen L. Smith

2020 David Greenberger

Sidalcea hickmanii ssp. napensis Napa checkerbloom

• rare native
Perennial herb

2022 Jake Ruygt

2022 Cynthia Powell

Sidalcea hickmanii ssp. parishii Parish's checkerbloom

• rare native
Perennial herb

2020 Chris Leslie

2018 Richard Spjut

Sidalcea hirsuta Hairy checkerbloom

native
Annual herb

2022 Steve Matson

Sidalcea keckii Keck's checkerbloom

• rare native
Annual herb

2023 Charles E Peck

2021 Charles Russell

Sidalcea malachroides Maple leaved checkerbloom, Mapleleaf checkerbloom

• rare native
Perennial herb

2016 Hayley Ross

2022 Jonathan Lee

2023 Constance McCoy

Sidalcea malvaeflora var. laciniata Checker bloom, Checker mallow, Dwarf checkerbloom

native
Perennial herb

2022 David Strauch

2018 Sheila Lodge

2022 Suzanne L. Weakley

Sidalcea malviflora Checker bloom, Checker mallow, Dwarf checkerbloom

native
Perennial herb

2022 David Strauch

2018 Sheila Lodge

2022 Suzanne L. Weakley

Sidalcea malviflora ssp. dolosa Deceitful checker mallow, Dwarf checkerbloom

• rare native
Perennial herb (rhizomatous)

2009 Thomas Stoughton

Sidalcea malviflora ssp. laciniata Dwarf checkerbloom, Laciniate checker mallow

native
Perennial herb (rhizomatous)

2020 David Greenberger

2021 Maria Stokes

2021 Heather Brady DeQuincy

Sidalcea malviflora ssp. malviflora Checker mallow, Dwarf checkerbloom

native
Perennial herb (rhizomatous)

2020 Mary Conway

2020 Diane Etchison

Sidalcea malviflora ssp. patula Siskiyou checkerbloom

• rare native
Perennial herb (rhizomatous)

2023 Claire Brown

2019 Tristan K Cole

2023 Claire Brown

Sidalcea malviflora ssp. purpurea Dwarf checkerbloom, Purple checkerbloom

• rare native
Perennial herb (rhizomatous)

2021 Mary Sue Ittner

2017 Mary Sue Ittner

2023 Austin keene

Sidalcea malviflora ssp. rostrata Dwarf checkerbloom

native
Perennial herb

2017 Steve Matson

Sidalcea multifida Cut leaf checker mallow, Cutleaf checkerbloom

• rare native
Perennial herb

2017 Alison Sheehey

2019 Richard Spjut

2022 Eric Koberle

Sidalcea neomexicana Mountain sidalcea, Salt spring checkerbloom

• rare native
Perennial herb

2011 Jeffrey Hapeman

2021 Jeffrey Hapeman

2019 Richard Spjut

Sidalcea oregana Oregon checker mallow, Oregon checkerbloom

native
Perennial herb

2020 Cheryl Ballantyne

2020 Bob Sweatt

2020 Cynthia Powell

Sidalcea oregana ssp. valida; Oregon checker mallow, Oregon checkerbloom

native
Perennial herb

2020 Cheryl Ballantyne

2020 Bob Sweatt

2020 Cynthia Powell

Sidalcea oregana ssp. hydrophila Marsh checkerbloom, Oregon checkerbloom

• rare native
Perennial herb

2005 Jennifer L. Kalt

Sidalcea oregana ssp. oregana Oregon checker mallow, Oregon checkerbloom

native
Perennial herb

2019 Susan McDougall

2018 Glenn Fine

Sidalcea oregana ssp. spicata Oregon checker mallow, Oregon checkerbloom, Spicate checker mallow

native
Perennial herb

2021 Cynthia Griffin

2016 mark kircher

2021 Cynthia Griffin

Sidalcea oregana ssp. valida Kenwood marsh checkerbloom

• rare native
Perennial herb (rhizomatous)

2016 george jackson

Sidalcea pedata Bird foot checkerbloom, Birdfoot checkerbloom

• rare native
Perennial herb

2016 Diane Etchison

2017 Ron Vanderhoff

2023 Diane Etchison

Sidalcea ranunculacea Marsh checker mallow, Marsh checkerbloom

native
Perennial herb

Geoff Burleigh

2014 James Gonsman

2022 Mike Russler

Sidalcea reptans Sierra checker mallow, Sierra checkerbloom

native
Perennial herb

2023 Mike Russler

2011 BOB CASE

Sidalcea robusta Butte county checkerbloom

• rare native
Perennial herb (rhizomatous)

2022 Robert Whitaker

2020 Lilyanne Price

Sidalcea sparsifolia Southern checkerbloom

native
Perennial herb (rhizomatous)

2022 Emily Sluiman

2019 Diane Etchison

2019 Bonnie Nickel

Sidalcea stipularis Scadden flat checkerbloom

• rare native
Perennial herb (rhizomatous)

2000 John Game

Rick York and CNPS

2008 Virginia Moran

Sidotheca caryophylloides Chickweed oxytheca

• rare native
Annual herb

2021 Manzanita Dictionary

2016 Michelle Tollett

Sidotheca emarginata White margined oxytheca

• rare native
Annual herb

2019 Matt Berger

Sidotheca trilobata Three lobed oxytheca

native
Annual herb

2017 Fred Melgert / Carla Hoegen

2019 Ron Vanderhoff

Silene antirrhina Sleepy catch fly, Sleepy catchfly, Sleepy silene

native
Annual herb

2019 Ken Hickman

2023 Matt Berger

Silene aperta Bare campion, Naked catchfly

• rare native
Perennial herb

2020 Matt Berger

2022 Mike Russler

Silene bernardina Palmer's campion, Palmer's catchfly

native
Perennial herb

2014 Steve Matson

Silene bernardina ssp. maguirei Palmer's campion, Palmer's catchfly

native
Perennial herb

2014 Steve Matson

Silene bolanderi Bolander's silene

native
Perennial herb

2022 Steve Conger

2018 J. Brett Lovelace

2022 Steve Conger

Silene bridgesii Bridges campion, Bridges' campion, Bridges' catchfly

native
Perennial herb

2008 Ron Wolf

2009 Keir Morse

Silene campanulata Campanulate campion, Red mountain catchfly

native
Perennial herb

2019 Matt Berger

2008 Keir Morse

2019 John Game

Silene campanulata ssp. campanulata Red mountain catchfly, Red mtn. catchfly

• rare native
Perennial herb

2019 John Game

2015 Cherilyn Burton

Silene campanulata ssp. glandulosa Bell catchfly, Campanulate catchfly, Red mountain catchfly

native
Perennial herb

2019 Matt Berger

2022 Jamie Spielmann

Silene coniflora Fire following campion

non-native
Annual herb

2015 Ron Vanderhoff

2019 Ron Vanderhoff

Silene multinervia Fire following campion

non-native
Annual herb

2015 Ron Vanderhoff

2019 Ron Vanderhoff

Silene douglasii Douglas catchfly, Douglas' campion, Douglas's catchfly

native
Perennial herb

2015 Charles Russell

2020 Bob Sweatt

Silene douglasii var. douglasii Douglas's catchfly

native
Perennial herb

2023 Dana York

2022 Alaine Arslan

Silene gallica Common catchfly, Windmill pink

non-native
Annual herb

2019 Mary Wloch

2017 Gary McDonald

2019 Gary McDonald

Silene grayi Gray's campion, Maui catchfly

native
Perennial herb

2019 Matt Berger

2018 Matt Berger

2019 Matt Berger

Silene hookeri Hooker's campion, Hooker's silene

native
Perennial herb

2022 Dana York

2020 Dee Shea Himes

Silene invisa Red fir catchfly, Short petaled campion

native
Perennial herb

2021 Bob Sweatt

2022 Cynthia Powell

Silene krantzii Krantz's catchfly

• rare native
Perennial herb

2021 Aaron Echols

2012 Duncan S. Bell

2021 Aaron Echols

Silene laciniata Cardinal catchfly

native
Perennial herb

2019 Ron Vanderhoff

2020 Ron Vanderhoff

2019 Diane Etchison

Silene laciniata ssp. greggii Cardinal catchfly

native
Perennial herb

2019 Ron Vanderhoff

2020 Ron Vanderhoff

2019 Diane Etchison

Silene californica California indian pink

native
Perennial herb

2023 Alaine Arslan

2016 Sue Graue

2019 Sue Graue

Silene laciniata ssp. californica California indian pink

native
Perennial herb

2023 Alaine Arslan

2016 Sue Graue

2019 Sue Graue

Silene laciniata ssp. laciniata Cardinal catchfly

native
Perennial herb

2020 David Greenberger

2023 Ron Vanderhoff

Silene alba Bladder campion

non-native
Perennial herb

2015 John Doyen

2007 Luigi Rignanese

Silene latifolia Bladder campion

non-native
Perennial herb

2015 John Doyen

2007 Luigi Rignanese

Silene latifolia ssp. alba Bladder campion

non-native
Perennial herb

2015 John Doyen

2007 Luigi Rignanese

Silene lemmonii Lemmon campion, Lemmon's catchfly

native
Perennial herb

2017 Steve Matson

2011 Steve Matson

2017 Steve Matson

Silene marmorensis Marble mountain catchfly, Marble mtn. campion

• rare native
Perennial herb

2022 Dana York

2021 Dana York

Silene menziesii Menzies' campion

native
Perennial herb

2016 Steve Matson

Silene noctiflora Night flowering campion, Nightflowering silene

non-native
Annual herb

2008 Louis-M. Landry

2006 Louis-M. Landry

2008 Louis-M. Landry

Silene nuda Naked campion, Western fringed catchfly

native
Perennial herb

2016 Jim Moore

2012 Aaron Arthur

Silene occidentalis Western campion, Western catchfly

native
Perennial herb

2022 Steve Ashcraft

2019 Matt Berger

2022 Steve Ashcraft

Silene occidentalis ssp. longistipitata Western campion, Western catchfly

• rare native
Perennial herb

2005 Dean Wm. Taylor

2013 Kirsten Bovee

2018 Sierra Pacific Industries

Silene oregana Oregon campion, Oregon silene

• rare native
Perennial herb

2012 Gary A. Monroe

2019 Matt C. Berger

Silene parishii Parish's campion, Parish's catchfly

native
Perennial herb

2020 John L. Thompson

2015 Matt Berger

2020 John L. Thompson

Silene salmonacea Klamath mountain catchfly

• rare native
Perennial herb

2021 Jamie Spielmann

2022 joaquin hale

2021 Jamie Spielmann

Silene sargentii Sargent's campion, Sargent's catchfly

native
Perennial herb

2019 Matt Berger

2012 Steve Matson

Silene scouleri Simple campion

native
Perennial herb

2016 Joseph O Connor

2022 Hunter Breck

2019 Scott Yarger

Silene scouleri ssp. pringlei Simple campion

native
Perennial herb

2016 Joseph O Connor

2022 Hunter Breck

2019 Scott Yarger

Silene scouleri ssp. grandis Simple campion

• rare native
Perennial herb

2021 Mike Russler

2022 Cynthia Powell

2021 Mike Russler

Silene scouleri ssp. scouleri Simple campion

• rare native
Perennial herb

2021 Mike Russler

2022 Cynthia Powell

2021 Mike Russler

Silene serpentinicola Serpentine catchfly

• rare native
Perennial herb (rhizomatous)

2023 Dana York

Silene suksdorfii Cascade alpine campion, Cascade alpine catchfly, Suksdorf's silene

• rare native
Perennial herb

2019 David Greenberger

2023 Jamie Spielmann

2019 David Greenberger

Silene verecunda Dolores campion, San francisco campion

native
Perennial herb

2022 Cynthia Powell

Silene cucubalus Bladder campion, Common campion

non-native
Perennial herb

2022 Dana York

2021 Julie A. Kierstead

2021 Dana York

Silene vulgaris Bladder campion, Common campion

non-native
Perennial herb

2022 Dana York

2021 Julie A. Kierstead

2021 Dana York

Silene vulgaris ssp. vulgaris Bladder campion, Common campion

non-native
Perennial herb

2022 Dana York

2021 Julie A. Kierstead

2021 Dana York

Silybum marianum Blessed milkthistle, Milk thistle

• invasive non-native
Annual, Perennial herb

2020 Nancy Hamlett

2019 Marisa Persaud

2018 Angelique Herman

Simmondsia chinensis Jojoba; goatnut, Jojobe

native
Shrub

SIMMONDSIACEAE

2019 Matt Berger

2020 Matt Berger

2017 Diane Etchison

Plagiobothrys jonesii Simpson's popcornflower, mojave popcornflower

native
Annual herb

2015 Steve Matson

2019 Richard Spjut

2015 Steve Matson

Sinapis alba White mustard

non-native
Annual herb

2006 Luigi Rignanese

2011 Louis-M. Landry

2006 Luigi Rignanese

Brassica kaber Charlock mustard

• invasive non-native
Annual herb

2020 Randy Huey

2022 Mike Russler

2023 Andy Ford

Sinapis arvensis Charlock mustard

• invasive non-native
Annual herb

2020 Randy Huey

2022 Mike Russler

2023 Andy Ford

Sisymbrium altissimum Tall tumblemustard, Tumble mustard, Tumbling mustard

non-native
Annual herb

2019 Ron Vanderhoff

2020 Ron Vanderhoff

Sisymbrium irio London rocket

• invasive non-native
Annual herb

2022 Ron Vanderhoff

2022 Mike Russler

Sisymbrium loeselii Rocket, Small tumbleweed mustard

non-native
Annual herb

2012 Jean Pawek

2011 Jean Pawek

Sisymbrium officinale Hedge mustard, Hedgemustard

non-native
Annual herb

2021 Ann Garside

2022 Julian Geoghegan

2021 Ron Vanderhoff

Sisymbrium orientale Indian hedge mustard, Oriental hedge mustard

non-native
Annual, Perennial herb

2019 Diane Etchison

2021 Paul Aigner

2021 Ron Vanderhoff

Sisyrinchium bellum Western blue eyed grass

native
Perennial herb

2020 Mary Conway

2024 Ron Vanderhoff

2019 Stacie Wolny

Sisyrinchium californicum California golden eyed grass, Golden blue eyed grass, Yellow eyed grass

native
Perennial herb

2021 Suzanne L. Weakley

2019 Cynthia Powell

2021 Jamie Spielmann

Sisyrinchium demissum Stiff blue-eyed grass

non-native
Perennial herb

Sisyrinchium elmeri Drew goldeneyed grass, Elmer's blue eyed grass, Elmer's golden eyed grass

native
Perennial herb

2005 Steve Matson

2018 Julie Kierstead Nelson

2023 Alaine Arslan

Sisyrinchium funereum Death valley blue eyed grass, Funeral mountain blue eyed grass

• rare native
Perennial herb

2020 Matt Berger

2012 Steve Matson

Sisyrinchium halophilum Nevada blue eyed grass

native
Perennial herb

2004 James M. Andre

2016 Neal Kramer

2002 Thomas M. Elder, M.D.

Sisyrinchium hitchcockii Hitchcock's blue eyed grass

• rare native
Perennial herb (rhizomatous)

2021 Dana York

Sisyrinchium idahoense Idaho blue eyed grass

native
Perennial herb

2016 Steve Matson

Geoff Burleigh

Sisyrinchium idahoense var. occidentale Idaho blue eyed grass

native
Perennial herb

2019 Susan McDougall

2012 Barry Rice

2016 Steve Matson

Sisyrinchium longipes Timberland blue eyed grass

• rare native
Perennial herb

2020 Margarita Orlova

2017 Ron Vanderhoff

2017 James Bailey

Sisyrinchium rosulatum Blue pigroot

non-native
Perennial herb

2019 Ron Vanderhoff

2020 Ron Vanderhoff

2019 Ron Vanderhoff

Sisyrinchium minus Dwarf blue eyed grass

non-native
Perennial herb

2018 Cristian Singer

Sium suave Hemlock water parsnip, Hemlock waterparsnip

native
Perennial herb

2020 Bob Sweatt

2019 Bob Sweatt

2022 Bob Sweatt

Smelowskia ovalis Alpine false candytuft

• rare native
Perennial herb

2019 Steve Matson

Smilax californica California greenbriar, California greenbrier, Greenbriar

native
Perennial herb, Vine

SMILACACEAE

2016 Steve Matson

Smilax jamesii English peak greenbriar, English peak greenbrier

• rare native
Perennial herb (rhizomatous)

SMILACACEAE

2018 Julie Kierstead Nelson

2015 Steve Matson

Solanum americanum American black nightshade, Common nightshade, Small flowered nightshade

native
Annual, Perennial herb

2014 Steve Matson

2019 Gary McDonald

2021 David Wolfson

Solanum nodiflorum American black nightshade, Common nightshade, Small flowered nightshade

native
Annual, Perennial herb

2014 Steve Matson

2019 Gary McDonald

2021 David Wolfson

Solanum aviculare New Zealand nightshade

• invasive non-native
Shrub

2018 Ron Vanderhoff

2017 Nick Graver

2020 Claire Elliott

Solanum cardiophyllum Heartleaf horsenettle

non-native
Annual, Perennial herb

2001 CDFA

Solanum carolinense Carolina horse nettle, Carolina horsenettle

• invasive non-native
Perennial herb

2011 Michael O'Brien

2017 Wynn Anderson

2001 CDFA

Solanum clokeyi Clokey's nightshade, Island nightshade, Santa cruz id. nightshade

• rare native
Perennial herb

2014 Steve Matson

Solanum dimidiatum Torrey's nightshade, Western horsenettle

• invasive non-native
Perennial herb

2006 Howard Orman Clark, Jr.

2001 CDFA

Solanum douglasii Douglas' nightshade, Greenspot nightshade

native
Perennial herb

2006 Steve Matson

Solanum dulcamara Bittersweet, Climbing nightshade

non-native
Vine, Shrub

2014 Jim Moore

2022 Donald Burk

2021 Julie A. Kierstead

Solanum elaeagnifolium Horse nettle, Silver leaved horsenettle, Silverleaf nightshade

• invasive non-native
Perennial herb

2021 Charles Russell

2019 Ron Vanderhoff

Solanum furcatum Forked nightshade

non-native
Perennial herb, Shrub

2024 Mike Russler

2019 Cynthia Powell

2024 Mike Russler

Solanum heterodoxum Melonleaf nightshade

native
Annual, Perennial herb

2016 Wynn Anderson

Solanum jasminoides Jasmine nightshade

non-native
Annual herb

Solanum laciniatum Kangaroo apple

• invasive non-native
Shrub

2018 Ron Vanderhoff

2022 Patrick Hoffman

2018 Ron Vanderhoff

Solanum lanceolatum Lance leaf nightshade, Orangeberry nightshade

• invasive non-native
Shrub

2021 Ron Vanderhoff

2015 Ron Vanderhoff

2021 Ron Vanderhoff

Solanum marginatum Purple african nightshade, White margined nightshade

• invasive non-native
Shrub

2001 CDFA

Solanum nigrum Black nightshade

non-native
Annual herb

2019 Julian Geoghegan

2019 Patrick Furtado

2021 Mike Russler

Solanum nigrum ssp. nigrum Black nightshade

non-native
Annual herb

2019 Julian Geoghegan

2019 Patrick Furtado

2021 Mike Russler

Solanum parishii Nightshade, Parish's nightshade, Parish's purple nightshade

native
Shrub

2019 Diane Etchison

2020 G Froelich

2021 Charles Russell

Solanum physalifolium var. nitidibaccatum Nightshade

non-native
Annual herb

Solanum physalifolium var. nitidibaccatum

2011 Toni Corelli

Solanum rostratum Buffalo berry, Buffalobur nightshade

non-native
Annual herb

2016 Ron Vanderhoff

2021 Timothy Blank

2019 Ron Vanderhoff

Solanum sisymbriifolium Sticky nightshade

non-native
Annual herb

Solanum torvum Turkey berry

non-native
Annual herb

Solanum triflorum Cutleaf nightshade, Three flowered nightshade

non-native
Annual herb

2022 Bob Sweatt

2008 John Dittes

Solanum tuberosum Irish potato

non-native
Shrub

2022 Jennifer Mo

2021 Jennifer Mo

2019 Elliot Gunnison

Solanum umbelliferum Blue witch nightshade, Bluewitch nightshade

native
Shrub

2014 Steve Matson

Solanum wallacei Catalina nightshade, Northern island nightshade, Wallace's nightshade

• rare native
Perennial herb

2019 Ron Vanderhoff

2014 Steve Matson

Solanum xanti Chaparral nightshade, Nightshade, Purple nightshade

native
Perennial herb, Shrub

2008 Steve Matson

Soleirolia soleirolii Baby's tears, Mother of thousands

non-native
Annual herb

2020 Ron Vanderhoff

2021 Donald Burk

2020 Ron Vanderhoff

Solidago altissima Canada goldenrod

native
Perennial herb

2020 Bob Sweatt

Solidago altissima ssp. altissima Late goldenrod

non-native
Perennial herb

2016 Keir Morse

Solidago canadensis Canada goldenrod

native
Perennial herb

2022 Cynthia Powell

2010 Keir Morse

2020 John Doyen

Solidago confinis Southern goldenrod

native
Perennial herb

2022 Ryan O'Dell

2003 Christopher L. Christie

2014 Neal Kramer

Solidago canadensis ssp. elongata West coast canada goldenrod

native
Perennial herb

2003 Steve Matson

2021 Mike Russler

2022 Steve Matson

Solidago elongata West coast canada goldenrod

native
Perennial herb

2003 Steve Matson

2021 Mike Russler

2022 Steve Matson

Solidago guiradonis Guirado goldenrod, Guirado's goldenrod

• rare native
Perennial herb (rhizomatous)

2021 Mike Russler

Solidago canadensis var. salebrosa Western goldenrod

• rare native
Perennial herb (rhizomatous)

2007 Dr. Amadej Trnkoczy

2011 Wynn Anderson

Solidago gigantea Western goldenrod

• rare native
Perennial herb (rhizomatous)

2007 Dr. Amadej Trnkoczy

2011 Wynn Anderson

Solidago lepida var. salebrosa Western goldenrod

• rare native
Perennial herb (rhizomatous)

2007 Dr. Amadej Trnkoczy

2011 Wynn Anderson

Solidago multiradiata Northern goldenrod, Rocky mountain goldenrod

native
Perennial herb

2005 Steve Matson

2015 Steve Matson

Solidago multiradiata var. scopulorum Northern goldenrod, Rocky mountain goldenrod

native
Perennial herb

2005 Steve Matson

2015 Steve Matson

Solidago simplex var. randii Dune goldenrod

native
Perennial herb

2016 Steve Matson

Solidago simplex var. simplex Dune goldenrod

native
Perennial herb

2016 Steve Matson

Solidago spathulata Dune goldenrod

native
Perennial herb

2016 Steve Matson

Solidago missouriensis Nevada goldenrod, Showy goldenrod

native
Perennial herb

2020 Ryan Carle

2008 Steve Matson

Solidago spectabilis Nevada goldenrod, Showy goldenrod

native
Perennial herb

2020 Ryan Carle

2008 Steve Matson

Solidago velutina Threenerve goldenrod

native
Perennial herb

2013 Steve Matson

2008 Steve Matson

2013 Steve Matson

Solidago californica California goldenrod, Oreja de liebre

native
Perennial herb

2013 Steve Matson

2008 Steve Matson

Solidago velutina ssp. californica California goldenrod, Oreja de liebre

native
Perennial herb

2013 Steve Matson

2008 Steve Matson

Solidago sparsiflora Great basin goldenrod

native
Perennial herb

2011 Robert Sivinski

2012 Richard Spellenberg

2010 Lee Dittmann

Solidago velutina ssp. sparsiflora Great basin goldenrod

native
Perennial herb

2011 Robert Sivinski

2012 Richard Spellenberg

2010 Lee Dittmann

Soliva sessilis Common soliva, Field burrweed, South american soliva

non-native
Annual herb

2022 Diana Wahl

2019 Abbot Chambers

Sonchus arvensis Field sowthistle, Perennial sow thistle

• invasive non-native
Perennial herb

2023 Cynthia Powell

2015 Richard Spellenberg

Sonchus arvensis var. uliginosus Field sowthistle, Perennial sow thistle

• invasive non-native
Perennial herb

2023 Cynthia Powell

2015 Richard Spellenberg

Sonchus arvensis ssp. arvensis Field sowthistle

non-native
Perennial herb

2020 Ecological Concerns Inc

2015 Richard Spellenberg

Sonchus arvensis ssp. uliginosus Moist sowthistle

non-native
Perennial herb

2015 Richard Spellenberg

Sonchus asper Spiny sowthistle

non-native
Annual herb

2010 Michael Mitchell

2020 Julie A. Kierstead

2017 MCOSD Restoration Crew

Sonchus asper ssp. asper Prickly sow thistle, Sow thistle

• invasive non-native
Annual herb

2014 Gary McDonald

2022 Ron Vanderhoff

2014 Gary McDonald

Sonchus oleraceus Common sow thistle, Common sowthistle, Sow thistle

non-native
Annual herb

2019 Diane Etchison

2015 Jesse Rorabaugh

2024 Ron Vanderhoff

Sonchus tenerrimus Slender sow thistle, Slender sowthistle

non-native
Annual herb

2007 Luigi Rignanese

2018 Brian Charles

Plagiobothrys hispidus Cascade popcornflower

native
Annual herb

2006 Steve Matson

2022 richard mcneill

Sophora japonica Japanese pagoda tree

non-native
Tree

2016 Ron Vanderhoff

2016 Barbara Boethling

Sorbus aucuparia European mountain ash, European mountain rowan

non-native
Tree

2021 Donald Burk

2005 Dr. Amadej Trnkoczy

Sorbus aucuparia ssp. aucuparia European mountain ash, European mountain rowan

non-native
Tree

2021 Donald Burk

2005 Dr. Amadej Trnkoczy

Sorbus aucuparia ssp. glabrata European mountain ash, European mountain rowan

non-native
Tree

2021 Donald Burk

2005 Dr. Amadej Trnkoczy

Sorbus californica California mountain ash

native
Shrub

2020 Bob Sweatt

2015 Steve Matson

Sorbus scopulina Greene's mountain ash

native
Shrub

2006 Richard Spjut

2016 Cynthia Powell

2019 Richard Spjut

Sorbus scopulina var. cascadensis Greene's mountain ash

native
Shrub

2006 Richard Spjut

2016 Cynthia Powell

2019 Richard Spjut

Sorbus scopulina var. scopulina Greene's mountain ash

native
Shrub

2006 Richard Spjut

2016 Cynthia Powell

2019 Richard Spjut

Sorbus sitchensis Western mountain ash

native
Tree, Shrub

2015 Barry Breckling

2016 Steven Thorsted

2015 Robert Sikora

Sorbus sitchensis var. grayi Sitka mountain ash, Western mountain ash

native
Tree, Shrub

2015 Robert Sikora

Sorbus sitchensis var. sitchensis Sitka mountain ash

native
Tree, Shrub

2018 Susan McDougall

Sorghum almum Columbus grass

non-native
Annual grass

Sorghum bicolor Sorghum

non-native
Annual grass

2014 Ron Vanderhoff

2021 Keir Morse

2017 Fred Melgert / Carla Hoegen

Sorghum arundinaceum Common wild sorghum

non-native
Annual grass

Sorghum bicolor ssp. bicolor Grain sorghum

non-native
Annual grass

2005 Louis-M. Landry

Sorghum halepense Johnsongrass

• invasive non-native
Perennial grass

2014 Robert F Norris

2019 Jennifer Mo

2020 Julie A. Kierstead

Sparaxis grandiflora Large flowered harlequin flower

non-native
Perennial herb

2003 Yulan Tong

2013 Robert Sikora

Sparaxis tricolor Harlequin flower, Wandflower

non-native
Perennial herb

2018 Rachel Way

2022 Tatiana Manzanillo

2021 Jessica Cornelius

Sparganium angustifolium Narrow leaved bur reed, Narrowleaf bur reed

native
Perennial herb

2013 BOB CASE

2020 Dana York

Sparganium emersum European bur reed

native
Perennial herb

2018 Steve Matson

2019 David Greenberger

Sparganium erectum ssp. neglectum Simplestem bur reed

native
Perennial herb

2010 Louis-M. Landry (ssp. stoloniferum)

2006 Louis-M. Landry (ssp. stoloniferum)

Sparganium californicum Broadfruit bur reed

native
Perennial herb

2020 Ron Vanderhoff

Sparganium eurycarpum Broadfruit bur reed

native
Perennial herb

2020 Ron Vanderhoff

Sparganium eurycarpum var. eurycarpum Broadfruit bur reed

native
Perennial herb

2020 Ron Vanderhoff

Sparganium erectum ssp. stoloniferum Bur reed

native
Perennial herb

2019 David Greenberger

2010 Louis-M. Landry

2008 Louis-M. Landry

Sparganium eurycarpum var. greenei Bur reed

native
Perennial herb

2019 David Greenberger

2010 Louis-M. Landry

2008 Louis-M. Landry

Sparganium natans Small bur reed

• rare native
Perennial herb (rhizomatous)

2018 Julie Kierstead

2009 Keir Morse

2018 Julie Kierstead Nelson

Spartina alterniflora Salt water cord grass, Smooth cordgrass

• invasive non-native
Perennial grass

2014 Vertin Alvarez

2009 Zoya Akulova

Spartina anglica Common cordgrass

• invasive non-native
Perennial grass

2018 Joe DiTomaso

Spartina densiflora Dense flowered cord grass, Denseflower cordgrass

• invasive non-native
Perennial grass

2001 Joe DiTomaso

Spartina foliosa California cord grass, California cordgrass, Pacific cordgrass

native
Perennial grass

2019 Patrick Furtado

2017 MCOSD EDRR

2021 Jutta Burger

Spartina gracilis Alkali cord grass, Alkali cordgrass

• rare native
Perennial grass (rhizomatous)

2020 Matt Berger

2005 Steve Matson

Spartina patens Salt meadow cord grass, Saltmeadow cordgrass

• invasive non-native
Perennial grass

2000 Joe DiTomaso

2011 Steve Matson

Spartium junceum Gorse, Spanish broom

• invasive non-native
Shrub

2020 Ron Vanderhoff

2006 Jennifer Naegele

2021 Mary Herr

Spergula arvensis Corn spurry

non-native
Annual herb

2019 Diane Etchison

2020 Mary Conway

2022 Cynthia Powell

Spergularia atrosperma Blackseed sandspurry, Sand spurrey

native
Annual herb

2019 Mary Merriman

1995 Saint Mary's College of California

Spergularia bocconi Boccone's sand spurry

non-native
Annual herb

2021 Ron Vanderhoff

2019 Ron Vanderhoff

Spergularia canadensis var. canadensis Canadian sandspurry

native
Annual herb

2008 Gerald D. Carr

Spergularia macrotheca Large flowered sand spurry, Sticky sand spurry, Sticky sandspurry

native
Perennial herb

2019 Steve Matson

Spergularia macrotheca var. leucantha Sticky sandspurry, White sticky sand spurry

native
Perennial herb

2016 BOB CASE

2011 Neal Kramer

Spergularia macrotheca var. longistyla Long styled sand spurrey, Sticky sandspurry

• rare native
Perennial herb

2019 Steve Matson

Spergularia macrotheca var. macrotheca Sand spurrey, Sticky sand spurry, Sticky sandspurry

native
Perennial herb

2008 Steve Matson

2017 B.J. Dion

2020 Mary Conway

Spergularia marina Salt marsh sand spurry

native
Annual herb

2023 Mike Russler

2021 R.A. Chasey

2021 Ron Vanderhoff

Spergularia media Coast sand spurry, Sand spurry

non-native
Annual, Perennial herb

2018 Vernon Smith

2006 Luigi Rignanese

Spergularia media var. media Sand spurry

non-native
Annual, Perennial herb

2018 Vernon Smith

2013 Vernon Smith

Spergularia rubra Purple sand spurry, Red sandspurry, Ruby sandspurry

non-native
Annual, Perennial herb

2023 Ron Vanderhoff

Spergularia villosa Hairy sand spurrey, Hairy sandspurry, Villous sand spurry

non-native
Perennial herb

2021 Ron Vanderhoff

2011 Toni Corelli

2021 Ron Vanderhoff

Spermolepis echinata Bristly scaleseed, Bristly spermolepis

native
Annual herb

2011 Steve Matson

Spermolepis infernensis Hellhole scaleseed

• rare native
Annual herb

2020 Matt Berger

Sphaeralcea ambigua Apricot mallow, Desert globemallow, Desert mallow

native
Perennial herb

2011 Steve Matson

Sphaeralcea ambigua ssp. violacea Apricot mallow, Desert globemallow, Desert mallow

native
Perennial herb

2011 Steve Matson

Sphaeralcea ambigua var. ambigua Apricot mallow, Mountain apricot mallow

native
Perennial herb

2022 Steve Matson

2011 Steve Matson

Sphaeralcea parvifolia Apricot mallow, Mountain apricot mallow

native
Perennial herb

2022 Steve Matson

2011 Steve Matson

Sphaeralcea ambigua ssp. rosacea Rosy apricot mallow

native
Perennial herb

2011 Steve Matson

2020 Steve Matson

Sphaeralcea ambigua var. rosacea Rosy apricot mallow

native
Perennial herb

2011 Steve Matson

2020 Steve Matson

Sphaeralcea ambigua var. rugosa Apricot mallow, Desert globemallow

native
Perennial herb

2023 R.A. Chasey

Sphaeralcea angustifolia Copper globemallow, Narrow leaved desert mallow

native
Shrub (stem succulent)

2020 David Greenberger

2006 James M. Andre

2015 Fred Melgert / Carla Hoegen

Sphaeralcea coulteri Coulter's globemallow

native
Annual herb

2016 Jade Keehn

2010 Keir Morse

Sphaeralcea emoryi Emory's globemallow

native
Perennial herb

2010 Steven Thorsted

2009 Robert Steers

2010 Steven Thorsted

Sphaeralcea emoryi var. emoryi Emory's desert mallow, Emory's globemallow

native
Perennial herb

2001 Steven Thorsted

2016 Keir Morse

Sphaeralcea grossulariifolia Gooseberryleaf globemallow

• rare native
Perennial herb, Shrub

2015 Ron Wolf

2006 James M. Andre

2010 Mary Winter

Sphaeralcea laxa Caliche globemallow

non-native
Perennial herb, Shrub

2020 Toutcha Lebgue-Keleng

2019 John Doyen

2020 Toutcha Lebgue-Keleng

Sphaeralcea munroana Munro's globemallow

• rare native
Perennial herb

2010 Gary A. Monroe

2012 Gary A. Monroe

Sphaeralcea munroana ssp. munroana Munro's globemallow

• rare native
Perennial herb

2010 Gary A. Monroe

2012 Gary A. Monroe

Sphaeralcea orcuttii Carrizo creek globemallow, Carrizo mallow

native
Annual, Perennial herb

2018 Fred Melgert

Sphaeralcea rusbyi var. eremicola Rusby's desert mallow

• rare native
Perennial herb

2011 Keir Morse

2010 James M. Andre

Sphaerocarpos drewei Bottle liverwort

• rare native
Liverwort

SPHAEROCARPACEAE

University and Jepson Herbaria

Sphaeromeria cana Gray chickensage, Tansy

native
Perennial herb

2009 Steve Matson

2012 Steve Matson

2009 Steve Matson

Sphaeromeria potentilloides Cinquefoil tansy, Fivefinger chickensage

native
Perennial herb

2010 Steve Matson

Sphaeromeria potentilloides var. nitrophila Cinquefoil tansy, Fivefinger chickensage

• rare native
Perennial herb

Sphaeromeria potentilloides var. nitrophila

2007 Steve Matson

2005 Steve Matson

Sphaeromeria potentilloides var. potentilloides Cinquefoil tansy, Fivefinger chickensage

native
Perennial herb

Sphaeromeria potentilloides var. potentilloides

2010 Steve Matson

Sphaerophysa salsula Alkali swainsonpea, Austrian peaweed

• invasive non-native
Perennial herb

2009 Barry Breckling

Cyathea cooperi Cooper's tree fern

non-native
Perennial herb

CYATHEACEAE

Sphenopholis obtusata Prairie wedge grass, Prairie wedgescale, Wedgegrass

• rare native
Perennial grass

2009 Steve Matson

Spinacia oleracea Spinach

non-native
Annual herb

2008 Louis-M. Landry

2006 Louis-M. Landry

Spiraea douglasii Douglas spiraea, Douglas' spirea, Douglas's spirea

native
Shrub

2019 Steve Matson

Spiraea douglasii ssp. douglasii Douglas spiraea, Douglas' spirea, Douglas's spirea

native
Shrub

2019 Steve Matson

Spiraea douglasii var. menziesii Douglas spiraea, Douglas' spirea, Douglas's spirea

native
Shrub

2019 Steve Matson

Spiraea prunifolia Bridalwreath spirea

non-native
Shrub

Spiraea densiflora Rose meadowsweet

native
Shrub

2015 Steve Matson

Spiraea splendens Rose meadowsweet

native
Shrub

2015 Steve Matson

Spiraea splendens var. splendens Rose meadowsweet

native
Shrub

2015 Steve Matson

Spiranthes porrifolia Creamy ladies tresses, Creamy ladies' tresses, Western ladies tresses

native
Perennial herb

2020 Mary Ann Machi

2016 Steve Matson

2019 Julie Kierstead Nelson

Spiranthes romanzoffiana Hooded ladies tresses, Hooded ladies' tresses, Ladies' tresses

native
Perennial herb

2018 Bill Haley

2003 Steve Matson

Spirodela polyrhiza Giant duckmeat

native
Perennial herb

2014 Robert L. Carr

Sporobolus airoides Alkali sacaton

native
Perennial grass

2022 Steve Matson

2009 Steve Matson

Sporobolus contractus Spike dropseed

native
Perennial grass

2005 James M. Andre

2011 Steve Matson

Sporobolus cryptandrus Sand dropseed

native
Perennial grass

2022 Steve Matson

2012 Steve Matson

2022 Steve Matson

Sporobolus flexuosus Mesa dropseed

native
Perennial grass

2011 Steve Matson

Sporobolus indicus Smut grass, Smutgrass

non-native
Perennial grass

2019 Ron Vanderhoff

2022 Donald Burk

Sporobolus indicus var. capensis Smut grass, Smutgrass

non-native
Perennial grass

2019 Ron Vanderhoff

2022 Donald Burk

Stachys ajugoides Ajuga hedge nettle, Bugle hedgenettle, Hedge nettle

native
Perennial herb

2021 Mike Russler

2014 James Gonsman

2023 Mike Russler

Stachys ajugoides ssp. pilosa Ajuga hedge nettle, Bugle hedgenettle, Hedge nettle

native
Perennial herb

2021 Mike Russler

2014 James Gonsman

2023 Mike Russler

Stachys albens Cobwebby hedge nettle, White hedge nettle, Whitestem hedgenettle

native
Perennial herb

2013 Steve Matson

Stachys arvensis Annual hedge nettle, Field hedge nettle, Staggerweed

non-native
Annual herb

2016 Andrew Longman

2013 Demo6 Calflora

2009 Phil Pullen

Stachys bullata California hedge nettle, California hedgenettle, Southern hedge nettle

native
Perennial herb

2014 Steve Matson

Stachys byzantina Woolly hedgenettle

non-native
Perennial herb

2023 Aracely Lara

2009 Zoya Akulova

2007 Louis-M. Landry

Stachys chamissonis Coast hedge nettle, Coastal hedgenettle

native
Perennial herb

2021 David Wolfson

2021 Toni Corelli

2013 James Gonsman

Stachys chamissonis var. cooleyae Coast hedge nettle, Coastal hedgenettle

native
Perennial herb

2021 David Wolfson

2021 Toni Corelli

2013 James Gonsman

Stachys cooleyae Coast hedge nettle, Coastal hedgenettle

native
Perennial herb

2021 David Wolfson

2021 Toni Corelli

2013 James Gonsman

Stachys ajugoides var. rigida Mexican hedgenettle

native
Perennial herb

2023 Mary Ann Machi

2016 Steve Matson

Stachys mexicana Mexican hedgenettle

native
Perennial herb

2023 Mary Ann Machi

2016 Steve Matson

Stachys palustris Marsh hedgenettle

native
Perennial herb

2006 Dr. Amadej Trnkoczy

2010 Louis-M. Landry

2006 Dr. Amadej Trnkoczy

Stachys pilosa Prairie woundwort

• rare native
Perennial herb

2013 Bob Case

2009 Mary Winter

Stachys pilosa var. pilosa Prairie woundwort

• rare native
Perennial herb

2013 Bob Case

2009 Mary Winter

Stachys pycnantha Short spike hedge nettle, Shortspike hedgenettle

native
Perennial herb

2023 David Wolfson

2019 David Wolfson

2021 Dan Quinn

Stachys rigida Rough hedgenettle

native
Perennial herb

2014 Steve Matson

2021 David popp

Stachys rigida ssp. rigida Rough hedgenettle

native
Perennial herb

2014 Steve Matson

2021 David popp

Stachys rigida ssp. quercetorum Rough hedgenettle

native
Perennial herb

2019 Ken Lunders

2016 Ron Vanderhoff

2023 Ron Vanderhoff

Stachys rigida var. quercetorum Rough hedgenettle

native
Perennial herb

2019 Ken Lunders

2016 Ron Vanderhoff

2023 Ron Vanderhoff

Stachys rigida var. rigida Rough hedgenettle

native
Perennial herb

2014 Steve Matson

Stachys stebbinsii Stebbins' hedgenettle

native
Perennial herb

2022 Ron Vanderhoff

2021 Ron Vanderhoff

Stachys stricta Sonoma hedge nettle, Sonoma hedgenettle

native
Perennial herb

2012 george jackson

Stanleya elata Panamint princesplume, Prince's plume

native
Perennial herb

2010 Steve Matson

2022 Steve Matson

Stanleya pinnata Desert princesplume, Prince's plume

native
Perennial herb, Shrub

2022 Steve Matson

2020 Steve Matson

Stanleya pinnata ssp. pinnata Desert princesplume, Prince's plume

native
Perennial herb, Shrub

2022 Steve Matson

2020 Steve Matson

Stanleya pinnata var. pinnata Desert princesplume, Prince's plume

native
Perennial herb, Shrub

2020 Steve Matson

Stanleya viridiflora Green flowered prince's plume, Green princesplume

• rare native
Perennial herb

2021 Sarah Tona

2014 Mary Winter

Staphylea bolanderi Bladdernut, Sierra bladdernut

native
Tree, Shrub

STAPHYLEACEAE

2019 Catherine Capone

2013 Debra L. Cook

Stebbinsoseris decipiens Santa Cruz microseris

• rare native
Annual herb

2020 Susan Lambrecht

2021 Dylan Neubauer

2023 Dylan Neubauer

Stebbinsoseris heterocarpa Grassland stebbinsoseris

native
Annual herb

2019 Ron Vanderhoff

2017 Diane Etchison

Stellaria borealis ssp. sitchana Boreal starwort, Northern starwort, Sitka starwort

native
Perennial herb

2020 Joslyn Curtis

Stellaria calycantha Northern bogwort, Northern starwort

native
Perennial herb

2017 Steve Matson

2022 Bob Sweatt

2017 Steve Matson

Stellaria crispa Curled starwort, Ruffled starwort

native
Perennial herb

2010 Barry Breckling

2006 Doreen L. Smith

2012 Jean Pawek

Stellaria graminea Grasslike starwort

non-native
Perennial herb

2009 Phil Pullen

2008 Zoya Akulova

Stellaria littoralis Beach starwort, Shore chickweed, Shore starwort

• rare native
Perennial herb

2017 David Greenberger

2023 R.A. Chasey

Stellaria longifolia Long leaved starwort, Longleaf starwort

• rare native
Perennial herb (rhizomatous)

2009 Sierra Pacific Industries

Stellaria longipes Longstalk starwort

native
Perennial herb

2022 Mike Russler

2017 Mary Merriman

2022 Mike Russler

Stellaria longipes ssp. longipes Chickweed, starwort

native
Perennial herb

2022 Mike Russler

2021 Mike Russler

2016 Jim Moore

Stellaria media Chickweed

non-native
Annual herb

2018 Gary McDonald

2015 Diane Etchison

Stellaria neglecta Common chickweed

non-native
Annual herb

2019 Anthony O'Dea

2009 Phil Pullen

Stellaria nitens Shining chickweed, Shiny chickweed, Smooth chickweed

native
Annual herb

2022 Catherine Chang

2020 Ken Hickman

Stellaria obtusa Obtuse starwort, Rocky mountain chickweed

• rare native
Perennial herb (rhizomatous)

2020 Susan McDougall

2004 Dean Wm. Taylor

2014 Kirsten Bovee

Stellaria pallida Pale starwort

non-native
Annual herb

2022 Donald Burk

2004 Keir Morse

Stellaria umbellata Umbellate chickweed, Umbrella starwort

native
Perennial herb

2005 Steve Matson

2015 Barry Breckling

Stemodia durantifolia White woolly stemodia, Whitewoolly twintip

• rare native
Perennial herb

2017 Keir Morse

Stenanthium occidentale Western featherbells, Western stenanthium

native
Perennial herb

2019 Matt Berger

Stenocarpus sinuatus

non-native
Tree

Stenotaphrum secundatum Saint augustine grass, St. augustine grass

non-native
Perennial grass

2015 Ron Vanderhoff

2019 Wyatt Dooley

2011 Steve Matson

Stenotus acaulis Stemless mock goldenweed

native
Perennial herb

2008 Steve Matson

2016 Steve Matson

2015 Steve Matson

Stenotus acaulis var. acaulis Stemless mock goldenweed

native
Perennial herb

2008 Steve Matson

2016 Steve Matson

2015 Steve Matson

Stenotus lanuginosus Woolly mock goldenweed, Woolly stenotus

native
Perennial herb

2020 Susan McDougall

2004 Dean Wm. Taylor

2009 Sierra Pacific Industries

Stenotus lanuginosus var. lanuginosus Woolly stenotus

• rare native
Perennial herb

2015 Sierra Pacific Industries

Stephanomeria cichoriacea Chicory leaved stephanomeria, Chicoryleaf wirelettuce, Fort tejon milk aster

native
Perennial herb

2019 David Greenberger

2012 Ron Vanderhoff

2018 John Game

Stephanomeria diegensis San diego milk aster, Wreathplant

native
Annual, Perennial herb

2019 Aaron Echols

2020 Ron Vanderhoff

Stephanomeria elata Annual mitra, Santa barbara stephanomeria, Santa barbara wirelettuce

native
Annual herb

2019 David Greenberger

2018 Julian Geoghegan

2021 Helen Hancock

Stephanomeria exigua Small wirelettuce

native
Annual herb

2022 Steve Matson

2019 David Greenberger

2022 Steve Matson

Stephanomeria exigua ssp. coronaria Milk aster, White plume wirelettuce, Whiteplume wirelettuce

native
Annual herb

2014 Bill Thiessen

2013 Robert Sikora

2015 Zoya Akulova

Stephanomeria exigua ssp. deanei Dean's stephanomeria, Deane's wirelettuce

native
Annual herb

2012 Keir Morse

Stephanomeria exigua ssp. exigua Mitra, Slender stephanomeria, Small wirelettuce

native
Annual herb

2019 Diane Etchison

2022 Steve Matson

2017 Steve Matson

Stephanomeria lactucina Forest stephanomeria, Large flowered stephanomeria, Wirelettuce

native
Perennial herb

2003 Steve Matson

2022 Cynthia Powell

Stephanomeria paniculata Stiff branched stephanomeria, Tufted wirelettuce

native
Annual herb

2006 George W. Hartwell

2019 David popp

2006 George W. Hartwell

Stephanomeria parryi Parry rock pink, Parry's stephanomeria, Parry's wirelettuce

native
Perennial herb

2011 Steve Matson

2010 Steve Matson

2011 Steve Matson

Stephanomeria pauciflora Brownplume wirelettuce, Desert straw, Wire lettuce

native
Perennial herb

2015 Steve Matson

Stephanomeria tenuifolia Narrow leaved stephanomeria, Narrow leaved wire lettuce, Wire lettuce

native
Perennial herb

2019 Bob Sweatt

2020 Greg Froelich

2020 G reg Froelich

Stephanomeria virgata Rod wirelettuce, Tall stephanomeria, Twiggy wreath plant

native
Annual herb

2019 Steven M Norris

2022 Helen Hancock

2019 Steven M Norris

Stephanomeria virgata ssp. pleurocarpa Tall stephanomeria, Wand stephanomeria, Wand wirelettuce

native
Annual herb

2021 Helen Hancock

2018 Richard Spjut

Stephanomeria virgata ssp. virgata Rod wirelettuce, Tall milk aster, Virgate stephanomeria

native
Annual herb

2019 David Greenberger

1970 Martin Purdy

2018 Ron Vanderhoff

Stillingia linearifolia Linear leaved stillingia, Narrow leaved stillingia, Queen's root

native
Perennial herb

2010 Steve Matson

Stillingia paucidentata Mojave stillingia, Mojave toothleaf, Tooth leaf

native
Perennial herb

2013 Neal Kramer

2023 Matt Berger

Stillingia spinulosa Annual stillingia, Annual toothleaf, Broad leaved stillingia

native
Annual, Perennial herb

2019 Matt Berger

2017 Fred Melgert / Carla Hoegen

2006 Deborah Dozier

Stipa arida Mormon needle grass

• rare native
Perennial grass

2020 Matt Berger

2016 Dana York

2023 Dana York

Stipa brachychaeta Puna needle grass

• invasive non-native
Perennial grass

2020 Adrian Lustre

2001 CDFA

2020 Adrian Lustre

Stipa capensis Cape ricegrass

• invasive non-native
Annual grass

2016 Emily Chase

2019 Stephanie Hines

Stipa cernua Nodding needle grass

native
Perennial grass

2018 Liz Block

2022 Ron Vanderhoff

2022 Dianne Lake

Stipa chaetophora Stipoid ricegrass

non-native
Perennial grass

2017 Nick Graver

2017 Rachel Kesel

Hesperostipa comata Needle-and-thread

native
Perennial grass

2009 Steve Matson

2023 R.A. Chasey

Stipa comata Needle-and-thread

native
Perennial grass

2009 Steve Matson

2023 R.A. Chasey

Hesperostipa comata ssp. comata Needle & thread grass

native
Perennial grass

2022 Julie A. Kierstead

2021 R.A. Chasey

2015 Steve Matson

Stipa comata var. comata Needle & thread grass

native
Perennial grass

2022 Julie A. Kierstead

2021 R.A. Chasey

2015 Steve Matson

Stipa coronata Crested needle grass

native
Perennial grass

2020 Ron Vanderhoff

2022 Ron Vanderhoff

2019 Rachelle Gray

Stipa diegoensis San diego county needle grass

• rare native
Perennial grass

2006 Steve Matson

Stipa divaricata Small-flowered rice grass

• rare native
Perennial grass

2016 Steve Matson

Stipa exigua Little ricegrass

• rare native
Perennial grass

2011 Steve Matson

2023 Matt C. Berger

Achnatherum hymenoides Indian rice grass, Sand grass

native
Perennial grass

2023 Steve Matson

2022 Steve Matson

2022 Ryan O'Dell

Stipa hymenoides Indian rice grass, Sand grass

native
Perennial grass

2023 Steve Matson

2022 Steve Matson

2022 Ryan O'Dell

Stipa kingii King's ricegrass

native
Perennial grass

2016 Steve Matson

2020 John Rawlings

Stipa latiglumis Wide-glumed needle grass

native
Perennial grass

2005 Steve Matson

Achnatherum lemmonii Lemmon's needle grass

native
Perennial grass

2021 Arlee Montalvo

2008 Steve Matson

2021 Arlee Montalvo

Stipa lemmonii Lemmon's needle grass

native
Perennial grass

2021 Arlee Montalvo

2008 Steve Matson

2021 Arlee Montalvo

Stipa lepida Foothill needle grass

native
Perennial grass

2017 Gary McDonald

2023 Ron Vanderhoff

2017 Gary McDonald

Stipa lettermanii Letterman's needle grass

native
Perennial grass

2005 Steve Matson

2004 Steve Matson

Stipa manicata Andean tussockgrass

• invasive non-native
Perennial grass

2015 Sarah Minnick

2018 Eric Wrubel

2011 Eric Wrubel, NPS

Ampelodesmos mauritanica Mauritanian grass

non-native
Perennial grass

2010 Zoya Akulova

2001 CDFA

Stipa mauritanica Mauritanian grass

non-native
Perennial grass

2010 Zoya Akulova

2001 CDFA

Oryzopsis miliacea Smilo grass

non-native
Perennial grass

2021 Ron Vanderhoff

2020 Ron Vanderhoff

2022 Ron Vanderhoff

Stipa miliacea Smilo grass

non-native
Perennial grass

2021 Ron Vanderhoff

2020 Ron Vanderhoff

2022 Ron Vanderhoff

Piptatherum miliaceum Smilo grass

• invasive non-native
Perennial grass

2022 Donald Burk

2009 Keir Morse

2022 Donald Burk

Stipa miliacea var. miliacea Smilo grass

• invasive non-native
Perennial grass

2022 Donald Burk

2009 Keir Morse

2022 Donald Burk

Stipa nelsonii Mountain needle grass

native
Perennial grass

2022 John Rawlings

2005 Steve Matson

Stipa nelsonii var. dorei Mountain needle grass

native
Perennial grass

2022 John Rawlings

2012 Belinda Lo

Stipa nevadensis Nevada needle grass

native
Perennial grass

2005 Steve Matson

Stipa occidentalis Western needlegrass

native
Perennial grass

2022 Steve Matson

2022 Arlee Montalvo

Stipa occidentalis var. californica California needle grass

native
Perennial grass

2022 Steve Matson

Stipa occidentalis var. occidentalis Western needle grass

native
Perennial grass

2005 Steve Matson

2013 Robert Steers

Stipa parishii var. parishii Parish's needlegrass

native
Perennial grass

2022 Steve Matson

2019 Steve Matson

2022 Steve Matson

Stipa pinetorum Pinewoods needle grass

native
Perennial grass

2019 David Greenberger

2005 Steve Matson

Nassella pulchra Purple needle grass

native
Perennial grass

2019 Michelle Karle

2008 Zoya Akulova

2019 Ron Vanderhoff

Stipa pulchra Purple needle grass

native
Perennial grass

2019 Michelle Karle

2008 Zoya Akulova

2019 Ron Vanderhoff

Stipa purpurata Bristly needle grass

non-native
Perennial grass

2017 Nick Graver

2001 CDFA

Achnatherum speciosum Desert needle grass

native
Perennial grass

2011 Steve Matson

2022 Steve Matson

Stipa speciosa Desert needle grass

native
Perennial grass

2011 Steve Matson

2022 Steve Matson

Stipa stillmanii Stillman's needle grass

native
Perennial grass

2018 Julie Kierstead Nelson

2020 Art Clark

2017 Belinda Lo

Nassella tenuissima Mexican feathergrass

• invasive non-native
Perennial grass

2015 Neal Kramer

2016 Barbara Boethling

Stipa thurberiana Thurber's needle grass

native
Perennial grass

2005 Steve Matson

Stipa webberi Webber's needle grass

native
Perennial grass

2022 Steve Matson

2019 Steve Matson

2022 Steve Matson

Stokesia laevis Stokes' aster

non-native
Perennial herb

Strelitzia nicolai Bird-of-paradise -tree

non-native

STRELITZIACEAE

Strelitzia reginae Bird-of-paradise

non-native

STRELITZIACEAE

Streptanthella longirostris Long beaked twist flower, Longbeak streptanthella, Streptanthella

native
Annual herb

2023 Steve Matson

2017 Keir Morse

2022 Steve Matson

Streptanthus albidus Metcalf canyon jewelflower, White jewelflower

native
Annual herb

2019 Lynn Robertson

2023 R.A. Chasey

2023 William Lundgren

Streptanthus albidus ssp. peramoenus Most beautiful jewel flower, Most beautiful jewelflower

• rare native
Annual herb

2024 Mike Russler

Streptanthus barbatus Pacific jewelflower

native
Perennial herb

2011 Steve Matson

2020 R.A. Chasey

2020 David Greenberger

Streptanthus barbiger Bearded jewelflower

• rare native
Annual herb

2020 Joey Santore

2020 Terrence Gosliner

Streptanthus batrachopus Mt. Tamalpais jewelflower

• rare native
Annual herb

2020 Hunter Breck

2012 Aaron Schusteff

2019 David Greenberger

Streptanthus bernardinus Laguna mountain jewelflower, Laguna mtns. jewel flower

• rare native
Perennial herb

2011 Jeffrey Hapeman

2019 Diane Etchison

2017 Janith Johnson

Streptanthus brachiatus Socrates mine jewelflower

native
Perennial herb

2020 David Greenberger

2017 Don Loarie

Streptanthus breweri Brewer's jewelflower

native
Annual herb

2021 Charles Russell

2022 Ryan O'Dell

2022 Mike Russler

Streptanthus callistus Mt. hamilton jewel flower, Mt. hamilton jewelflower

• rare native
Annual herb

2019 John Game

2011 Aaron Schusteff

2012 Aaron Schusteff

Streptanthus campestris Southern jewel flower, Southern jewelflower, Southern streptanthus

• rare native
Perennial herb

2019 Matt Berger

2020 Matt Berger

Streptanthus cordatus Heartleaf jewelflower, Heartleaf twistflower

native
Perennial herb

2011 Steve Matson

Streptanthus cordatus var. cordatus Heartleaf jewelflower, Heartleaf twistflower

native
Perennial herb

2019 Matt Berger

Streptanthus cordatus var. duranii Heartleaf jewelflower, Heartleaf twistflower

native
Perennial herb

2019 Matt Berger

Streptanthus cordatus var. piutensis Heartleaf twistflower, Piute mtns. jewel flower

• rare native
Perennial herb

2023 Liz Block

2010 Rebecca Wenk

Streptanthus diversifolius Variableleaf jewelflower, Varied leaved jewelflower

native
Annual herb

2022 Steve Matson

Streptanthus drepanoides Sickle fruit jewel flower, Sicklefruit jewelflower

• rare native
Annual herb

2018 Julie Kierstead Nelson

2022 David popp

2023 Ryan O'Dell

Streptanthus farnsworthianus Farnsworth's jewel flower, Farnsworth's jewelflower

• rare native
Annual herb

2010 Aaron Schusteff

2023 Morgan Stickrod

Streptanthus fenestratus Tehipite valley jewel flower, Tehipite valley jewelflower

• rare native
Annual herb

2018 Steve Matson

Streptanthus glandulosus Bristly jewelflower, Tamalpais jewel flower

native
Annual herb

2023 William Lundgren

2019 David Greenberger

2018 Elinor Gates

Streptanthus glandulosus ssp. josephinensis Bristly jewelflower, Tamalpais jewel flower

native
Annual herb

Streptanthus glandulosus ssp. josephinensis

2023 William Lundgren

2019 David Greenberger

2018 Elinor Gates

Streptanthus glandulosus ssp. albidus Metcalf canyon jewelflower

native
Annual herb

2020 Joerg Lohse

2020 R.A. Chasey

Streptanthus glandulosus ssp. glandulosus Bristly jewelflower

native
Annual herb

Streptanthus glandulosus ssp. glandulosus

2003 Keir Morse

2020 Stacie Wolny

2021 Bryant Baker

Streptanthus glandulosus var. glandulosus Bristly jewelflower

native
Annual herb

Streptanthus glandulosus var. glandulosus

2003 Keir Morse

2020 Stacie Wolny

2021 Bryant Baker

Streptanthus glandulosus ssp. hoffmanii Hoffman's bristly jewel-flower

• rare native
Annual herb

2015 Hayley Ross

2021 R.A. Chasey

2019 R.A. Chasey

Streptanthus glandulosus ssp. niger Tiburon jewel-flower

• rare native
Annual herb

2022 Michael Heine

2016 Jane Huber

2021 R.A. Chasey

Streptanthus niger Tiburon jewel-flower

• rare native
Annual herb

2022 Michael Heine

2016 Jane Huber

2021 R.A. Chasey

Streptanthus glandulosus ssp. pulchellus Mt. Tamalpais jewel flower

• rare native
Annual herb

Streptanthus glandulosus ssp. pulchellus

2020 David Greenberger

2019 David Greenberger

Streptanthus glandulosus ssp. secundus One sided jewelflower, Secund jewelflower

native
Annual herb

2017 David Greenberger

2022 Hunter Breck

2022 Robert Steers

Streptanthus glandulosus ssp. sonomensis Uncommon jewelflower

native
Annual herb

Streptanthus glandulosus ssp. sonomensis

2015 James Gonsman

2019 R.A. Chasey

Streptanthus breweri var. hesperidis Green jewel-flower

• rare native
Annual herb

2021 Charles Russell

2023 Morgan Stickrod

2021 Charles Russell

Streptanthus hesperidis Green jewel-flower

• rare native
Annual herb

2021 Charles Russell

2023 Morgan Stickrod

2021 Charles Russell

Streptanthus hispidus Mt. diablo jewel flower, Mt. diablo jewelflower

• rare native
Annual herb

2005 Terry Gosliner

2018 Rebecca Schoenenberger

Streptanthus howellii Howell's jewel flower, Howell's jewelflower

• rare native
Perennial herb

1990 Dean Wm. Taylor

Rick York and CNPS

2005 Shawn DeCew

Streptanthus insignis Plumed jewelflower, San benito jewelflower

native
Annual herb

2019 Matt Berger

Streptanthus insignis ssp. insignis Plumed jewelflower, San Benito jewelflower

native
Annual herb

2019 Matt Berger

2023 Mike Russler

2019 Matt Berger

Streptanthus insignis ssp. lyonii Arburua ranch jewel flower, Arburua ranch jewelflower

• rare native
Annual herb

2022 Ryan O'Dell

Streptanthus longisiliquus Long-fruit jewel-flower

• rare native
Perennial herb

2019 David popp

2007 George W. Hartwell

Streptanthus morrisonii Morrison's jewelflower

native
Perennial herb

2019 Cat Chang

2021 David Greenberger

2021 Roger Raiche

Streptanthus morrisonii ssp. elatus Three peaks jewel flower, Three peaks jewelflower

• rare native
Perennial herb

2022 Ryan O'Dell

2023 Ryan O'Dell

Streptanthus morrisonii ssp. hirtiflorus Dorr's cabin jewel flower, Dorr's cabin jewelflower

• rare native
Perennial herb

Streptanthus morrisonii ssp. hirtiflorus

1998 Dean Wm. Taylor

1998 John Game

Streptanthus oblanceolatus Trinity river jewel-flower

• rare native
Perennial herb

2009 Dana York

2023 Mary Ann Machi

2023 Morgan Stickrod

Streptanthus oliganthus Masonic mountain jewelflower, Masonic mtn. jewel flower

• rare native
Perennial herb

2012 Lynn Robertson

Margaret Williams and CNPS

Streptanthus polygaloides Milkwort jewelflower

native
Annual herb

2019 Belinda Lo

2023 Mike Russler

2019 Alison Sheehey

Streptanthus tortuosus Jewelweed, Mountain jewelflower, Shieldplant

native
Annual, Perennial herb

2008 Steve Matson

2021 Steve Matson

Streptanthus tortuosus var. flavescens Jewelweed, Mountain jewelflower, Shieldplant

native
Annual, Perennial herb

2008 Steve Matson

2021 Steve Matson

Streptanthus tortuosus var. optatus Jewelweed, Mountain jewelflower, Shieldplant

native
Annual, Perennial herb

2008 Steve Matson

2021 Steve Matson

Streptanthus tortuosus var. suffrutescens Jewelweed, Mountain jewelflower, Shieldplant

native
Annual, Perennial herb

Streptanthus tortuosus var. suffrutescens

2008 Steve Matson

2021 Steve Matson

Streptanthus tortuosus var. tortuosus Jewelweed, Mountain jewelflower, Shieldplant

native
Annual, Perennial herb

2008 Steve Matson

2021 Steve Matson

Streptanthus tortuosus ssp. truei True's mountain jewelflower

• rare native
Perennial herb

2020 Shane Hanofee

2017 SPI Botany

2022 Rianna Humble

Streptanthus vernalis Early jewel-flower

• rare native
Annual herb

2019 Joey Santore

Streptanthus vimineus

native
Annual herb

2023 Ryan O'Dell

2016 Amelia Ryan

Amelia Ryan

Streptopus amplexifolius Claspleaf twistedstalk

native
Perennial herb

2017 Steve Matson

2011 Steve Matson

2017 Steve Matson

Streptopus amplexifolius var. chalazatus Claspleaf twistedstalk

native
Perennial herb

Streptopus amplexifolius var. chalazatus

2017 Steve Matson

2011 Steve Matson

2017 Steve Matson

Streptopus amplexifolius var. americanus American streptopus, Schultestwisted stalk, Twisted stalk

native
Perennial herb

Streptopus amplexifolius var. americanus

2011 Steve Matson

2017 Steve Matson

Malcolmia africana African mustard

non-native
Annual herb

2005 Steve Matson

Strigosella africana African mustard

non-native
Annual herb

2005 Steve Matson

Prosopis pubescens Screwbean mesquite

native
Shrub

2019 Matt Berger

2018 Brooke Stutz

Prosopis strombulifera Argentine screwbean

non-native
Shrub

Blechnum spicant Deer fern

native
Fern

BLECHNACEAE

2018 Hunter Breck

2022 Christine Kelly

2018 Adam Chasey

Struthiopteris spicant Deer fern

native
Fern

BLECHNACEAE

2018 Hunter Breck

2022 Christine Kelly

2018 Adam Chasey

Stuckenia filiformis Fineleaf pondweed

native
Perennial herb (rhizomatous)

2016 Robert L. Carr

Stuckenia filiformis ssp. alpina Fineleaf pondweed

• rare native
Perennial herb

2016 Robert L. Carr

Stuckenia pectinata Sago pondweed

native
Perennial herb (aquatic)

2021 Ron Vanderhoff

Atriplex covillei Coville's orach

native
Annual herb

2016 Steve Matson

Stutzia covillei Coville's orach

native
Annual herb

2016 Steve Matson

Stylocline citroleum Oil nest straw, Oil neststraw

• rare native
Annual herb

2013 Chris Winchell

Stylocline gnaphaloides Everlasting nest straw, Everlasting stylocline, Mountain neststraw

native
Annual herb

2019 Diane Etchison

2021 Ron Vanderhoff

Stylocline intertexta Morefield's neststraw, Tangled nest straw

native
Annual herb

2008 Steve Matson

Stylocline micropoides Desert nest straw, Woollyhead neststraw

native
Annual herb

2020 David Greenberger

2004 James M. Andre

Stylocline psilocarphoides Baretwig neststraw, Peck's stylocline

native
Annual herb

2019 Steve Matson

Styrax redivivus California snowdrop bush, Snowdrop bush, Storax

native
Shrub

STYRACACEAE

2023 Jamie Spielmann

2022 Ron Vanderhoff

2017 Ron Vanderhoff

Suaeda calceoliformis Horned sea blite, Pursh seepweed

native
Annual herb

2023 R.A. Chasey

2003 George W. Hartwell

Suaeda californica California seablite

• rare native
Shrub

2022 Cynthia Powell

2020 R.A. Chasey

Suaeda esteroa Estuary seablite

• rare native
Perennial herb

2018 Ron Vanderhoff

Suaeda moquinii Bush seepweed

native
Perennial herb

2017 Steve Matson

2016 Steve Matson

2017 Steve Matson

Suaeda nigra Bush seepweed

native
Perennial herb

2017 Steve Matson

2016 Steve Matson

2017 Steve Matson

Suaeda occidentalis Western horned sea blite

• rare native
Annual herb

2017 Steve Matson

Suaeda taxifolia Woolly seablite

• rare native
Shrub

2020 Ron Vanderhoff

2018 Ron Vanderhoff

2020 Ron Vanderhoff

Subularia aquatica ssp. americana Water awlwort

• rare native
Annual herb

2020 Donald Burk

2008 Steve Matson

Swallenia alexandrae Eureka dunegrass, Eureka valley dune grass

• rare native
Perennial grass (rhizomatous)

2022 Dana York

2020 Matt Berger

2022 Dana York

Swertia perennis Felwort, Star green gentian

native
Annual herb

2015 Steve Matson

Syagrus romanzoffiana Queen palm

non-native
Tree

2012 Ron Vanderhoff

2008 Luigi Rignanese

Symphoricarpos albus Common snowberry

native
Shrub

2021 Suzanne L. Weakley

2020 Bob Sweatt

2007 Neal Kramer

Symphoricarpos albus var. laevigatus Common snowberry, Upright snowberry

native
Shrub

2020 Jacob Smith

2021 Mike Russler

Symphoricarpos longiflorus Desert snowberry, long flowered snowberry

native
Shrub

2011 Steve Matson

2022 Steve Matson

Symphoricarpos mollis Creeping snowberry, Trailing snowberry

native
Shrub

2019 Ron Vanderhoff

2020 Cara Wilcox

2019 Ron Vanderhoff

Symphoricarpos occidentalis Western snowberry

non-native
Shrub

Symphoricarpos rotundifolius Mountain snowberry, Roundleaf snowberry

native
Shrub

2021 Steve Matson

Symphoricarpos rotundifolius var. parishii Parish's snowberry

native
Shrub

Symphoricarpos rotundifolius var. parishii

2005 Steve Matson

2021 Arlee Montalvo

Symphoricarpos rotundifolius var. rotundifolius Mountain snowberry, Roundleaved snowberry

native
Shrub

Symphoricarpos rotundifolius var. rotundifolius

2021 Steve Matson

2014 Steve Matson

Aster ascendens Western aster

native
Perennial herb

2022 Steve Matson

Symphyotrichum ascendens Western aster

native
Perennial herb

2022 Steve Matson

Aster eatonii Eaton's aster

native
Perennial herb

2002 Steve Matson

2019 David popp

Symphyotrichum bracteolatum Eaton's aster

native
Perennial herb

2002 Steve Matson

2019 David popp

Symphyotrichum eatonii Eaton's aster

native
Perennial herb

2002 Steve Matson

2019 David popp

Symphyotrichum campestre Western meadow aster

native
Perennial herb

2020 Susan McDougall

2014 John Doyen

Symphyotrichum campestre var. campestre Western meadow aster

native
Perennial herb

2020 Susan McDougall

2014 John Doyen

Aster chilensis California aster, Pacific aster

native
Perennial herb

2020 Suzanne L. Weakley

2013 Arcangelo Wessells

2018 Stacie Wolny

Symphyotrichum chilense California aster, Pacific aster

native
Perennial herb

2020 Suzanne L. Weakley

2013 Arcangelo Wessells

2018 Stacie Wolny

Symphyotrichum defoliatum San bernardino aster

• rare native
Perennial herb (rhizomatous)

2023 Ron Vanderhoff

2017 Ron Vanderhoff

Aster foliaceus Alpine leafybract aster

native
Perennial herb

2017 Mary Merriman

2022 Bob Sweatt

2018 David Greenberger

Symphyotrichum foliaceum Alpine leafybract aster

native
Perennial herb

2017 Mary Merriman

2022 Bob Sweatt

2018 David Greenberger

Aster foliaceus var. apricus Alpine leafybract aster

native
Perennial herb

2014 James Gonsman

Symphyotrichum foliaceum var. apricum Alpine leafybract aster

native
Perennial herb

2014 James Gonsman

Symphyotrichum foliaceum var. canbyi Canby's aster

native
Perennial herb

2014 Trent M. Draper

Aster foliaceus var. parryi Parry's aster

native
Perennial herb

2017 Mary Merriman

2022 Bob Sweatt

Symphyotrichum foliaceum var. parryi Parry's aster

native
Perennial herb

2017 Mary Merriman

2022 Bob Sweatt

Symphyotrichum frondosum Short rayed alkali aster

native
Annual herb

2020 Bob Sweatt

Symphyotrichum greatae Greata's aster

• rare native
Perennial herb (rhizomatous)

2014 Garth Wadsworth

2019 Manzanita Dictionary

2014 Garth Wadsworth

Symphyotrichum hendersonii Henderson's aster

native
Annual herb

2022 Dana York

Symphyotrichum laeve Smooth blue aster

native
Perennial herb

2008 Gerald Carr

Symphyotrichum laeve var. laeve Smooth blue aster

native
Perennial herb

2008 Gerald Carr

Symphyotrichum laeve var. geyeri Geyer's aster

native
Perennial herb

2008 Gerald Carr

Symphyotrichum lanceolatum var. hirsuticaule White panicle aster

native
Perennial herb

Symphyotrichum lanceolatum var. hirsuticaule

2012 Steve Matson

Symphyotrichum lanceolatum var. lanceolatum White panicle aster

native
Perennial herb

Symphyotrichum lanceolatum var. lanceolatum

2012 Steve Matson

Symphyotrichum lanceolatum var. hesperium Western lance leaf aster

native
Perennial herb

Symphyotrichum lanceolatum var. hesperium

2012 Steve Matson

Symphyotrichum lentum Suisun marsh aster

• rare native
Perennial herb (rhizomatous)

2021 John Game

2022 Morgan Stickrod

Aster occidentalis Western mountain aster

native
Perennial herb

2013 Steve Matson

Symphyotrichum spathulatum Western mountain aster

native
Perennial herb

2013 Steve Matson

Symphyotrichum spathulatum var. intermedium Larger western mountain aster

native
Perennial herb

Symphyotrichum spathulatum var. intermedium

2014 Richard Spellenberg

Symphyotrichum spathulatum var. spathulatum Western mountain aster

native
Perennial herb

Symphyotrichum spathulatum var. spathulatum

2013 Steve Matson

2016 Steve Matson

2013 Steve Matson

Symphyotrichum spathulatum var. yosemitanum Western bog aster

native
Perennial herb

Symphyotrichum spathulatum var. yosemitanum

2019 Julie Kierstead Nelson

2019 Julie Kierstead

2011 Ron Wolf

Aster subspicatus Douglas aster

native
Annual herb

2021 David Wolfson

2016 Michelle Bosch

Symphyotrichum subspicatum Douglas aster

native
Annual herb

2021 David Wolfson

2016 Michelle Bosch

Symphyotrichum subulatum Eastern annual saltmarsh aster

native
Annual herb

2019 Ron Vanderhoff

2018 Ron Vanderhoff

Symphyotrichum subulatum var. ligulatum Eastern annual saltmarsh aster

native
Annual herb

2019 Ron Vanderhoff

2018 Ron Vanderhoff

Symphyotrichum subulatum var. parviflorum Eastern annual saltmarsh aster

native
Perennial herb

Symphyotrichum subulatum var. parviflorum

2021 Ken Hickman

2021 Ron Vanderhoff

2019 Aaron Echols

Symphytum officinale Common comfrey

non-native
Perennial herb

2020 Bob Sweatt

2017 MCOSD EDRR

2020 Bob Sweatt

Symphytum Xuplandicum Russian comfrey

non-native
Perennial herb

2014 Simon J. Tonge

Synthyris cordata Serpentine snow queen

native
Perennial herb

2023 Dana York

Synthyris missurica Tailed kittentails

native
Perennial herb

2016 Matt Berry

2010 Jean Pawek

Synthyris missurica ssp. missurica Kitten tails

• rare native
Perennial herb (rhizomatous)

2016 Matt Berry

2010 Aaron Arthur

Synthyris reniformis Snow queen, Snowqueen

native
Perennial herb

2021 Mary Ann Machi

2019 Belinda Lo

Syntrichopappus fremontii Fremont's syntrichopappus, Yellowray fremont's gold

native
Annual herb

2005 Steve Matson

2008 Steve Matson

Syntrichopappus lemmonii Lemmon's syntrichopappus, Pinkray fremont's gold

• rare native
Annual herb

2016 Keir Morse

2006 J. Zylstra, SBNF

2016 Keir Morse

Syringa vulgaris Common lilac

non-native
Vine, Shrub

Systenotheca vortriedei Vortriede's spineflower

• rare native
Annual herb

2022 Scott Yarger

Syzygium australe Brush cherry

non-native
Tree

2015 Zoya Akulova

Syzygium jambos Malabar plum

non-native
Tree

Tacca leontopetaloides Batflower

non-native

TACCACEAE

Tagetes erecta French or african marigold

non-native
Annual herb

2004 Nick Kurzenko

2011 Nick Kurzenko

2014 Zoya Akulova

Tagetes patula French or african marigold

non-native
Annual herb

2004 Nick Kurzenko

2011 Nick Kurzenko

2014 Zoya Akulova

Tagetes minuta Little marigold, Muster john henry

• invasive non-native
Annual herb

2018 Mel Graham

2001 CDFA

Tamarix aphylla Athel tamarisk, Athel tree

• invasive non-native
Tree

2020 Ron Vanderhoff

2021 Randy Huey

Tamarix chinensis Chinese tamarisk, Fivestamen tamarisk, Salt cedar

• invasive non-native
Shrub

2011 Robert Sivinski

2015 Robert Sikora

2014 Ron Wolf

Tamarix pentandra Chinese tamarisk, Fivestamen tamarisk, Salt cedar

• invasive non-native
Shrub

2011 Robert Sivinski

2015 Robert Sikora

2014 Ron Wolf

Tamarix gallica French tamarisk

• invasive non-native
Tree, Shrub

2020 Leslie Cobb

1995 Saint Mary's College of California

Tamarix parviflora Fourstamen tamarisk, Smallflower tamarisk

• invasive non-native
Tree, Shrub

2020 Leslie Cobb

2015 Steve Matson

Tamarix ramosissima Saltcedar, Tamarisk

• invasive non-native
Tree, Shrub

2020 Ron Vanderhoff

2017 Barbara Boethling

2022 Ron Vanderhoff

Tanacetum bipinnatum Dune tansy

native
Perennial herb

2019 Patrick Furtado

2020 Joerg Lohse

2017 Steve Matson

Tanacetum bipinnatum ssp. huronense Dune tansy

native
Perennial herb

2019 Patrick Furtado

2020 Joerg Lohse

2017 Steve Matson

Tanacetum camphoratum Dune tansy

native
Perennial herb

2019 Patrick Furtado

2020 Joerg Lohse

2017 Steve Matson

Chrysanthemum parthenium Feverfew

non-native
Perennial herb

2015 Ron Vanderhoff

2022 Jennifer Mo

2020 Bob Sweatt

Tanacetum parthenium Feverfew

non-native
Perennial herb

2015 Ron Vanderhoff

2022 Jennifer Mo

2020 Bob Sweatt

Tanacetum vulgare Common tansy

• invasive non-native
Perennial herb

2011 Ramona Robison

2005 George W. Hartwell

2014 Zoya Akulova

Taraxacum californicum California dandelion

• rare native
Perennial herb

2023 Ryan O'Dell

Taraxacum ceratophorum Horned dandelion

• rare native
Annual herb

2016 Steve Matson

Taraxacum erythrospermum Red-seeded dandelion

non-native
Perennial herb

2021 Ron Vanderhoff

2022 Ron Vanderhoff

2023 Ron Vanderhoff

Taraxacum officinale Common dandelion, Dandelion, Red seeded dandelion

• invasive non-native
Perennial herb

2021 Ron Vanderhoff

2019 Diane Etchison

2021 Ron Vanderhoff

Camissonia ovata Sun cup, Goldeneggs

native
Perennial herb

2017 Steve Matson

Taraxia ovata Sun cup, Goldeneggs

native
Perennial herb

2017 Steve Matson

Camissonia subacaulis Long leaved suncup

native
Perennial herb

2008 Steve Matson

2020 Bob Sweatt

Taraxia subacaulis Long leaved suncup

native
Perennial herb

2008 Steve Matson

2020 Bob Sweatt

Camissonia tanacetifolia Tansy leaf evening primrose

native
Perennial herb

2010 Steve Matson

Camissonia tanacetifolia ssp. tanacetifolia Tansy leaf evening primrose

native
Perennial herb

Camissonia tanacetifolia ssp. tanacetifolia

2010 Steve Matson

Taraxia tanacetifolia Tansy leaf evening primrose

native
Perennial herb

2010 Steve Matson

Targionia hypophylla

native
Liverwort

TARGIONIACEAE

2023 Jordan Collins

2023 Julia Markey

2023 Neil Uelman

Tauschia arguta Southern tauschia, Southern umbrellawort

native
Perennial herb

2019 Matt Berger

2020 Bryant Baker

2019 Diane Etchison

Tauschia glauca Glaucous tauschia, Glaucous umbrellawort

• rare native
Perennial herb

2022 joaquin hale

Tauschia hartwegii Hartweg's tauschia, Hartweg's umbrellawort, Tauschia

native
Perennial herb

2006 Steve Matson

Tauschia howellii Howell's tauschia, Howell's umbrellawort

• rare native
Perennial herb

2020 Mary Patterson

2011 Amanda Shufelberger

Tauschia kelloggii Kellogg's tauschia, Kellogg's umbrellawort

native
Perennial herb

2023 R.A. Chasey

Tauschia parishii Parish's tauschia, Parish's umbrellawort

native
Perennial herb

2013 Steve Matson

Taxodium distichum Bald cypress

non-native
Tree

Taxus baccata English yew

non-native
Tree

TAXACEAE

2018 Doug Allshouse

2020 Jean Pawek

2010 Tommaso Sitzia

Taxus brevifolia California yew, Pacific yew, Western yew

native
Tree

TAXACEAE

2015 Nathan Feldman

2020 Julie A. Kierstead

2018 Richard Spjut

Tecoma capensis Cape honeysuckle

non-native
Vine, Shrub

2022 Ron Vanderhoff

Tecomaria capensis Cape honeysuckle

non-native
Vine, Shrub

2022 Ron Vanderhoff

Teesdalia coronopifolia Lesser shepherds cress, Lesser shepherdscress

non-native
Annual herb

2006 Barrett Jeffery

2006 Jeffery Barrett

Tellima grandiflora Bigflower tellima, Fringe cups

native
Perennial herb

2017 Steve Matson

2016 Steve Matson

Tetracoccus dioicus Parry's tetracoccus, Red shrubby spurge

• rare native
Shrub

PICRODENDRACEAE

2019 Richard Spjut

2023 Kristen Richardson

2005 Vince Scheidt

Tetracoccus hallii Hall's purple bush, Hall's shrubby spurge, Holly leaved spurge

• rare native
Shrub

PICRODENDRACEAE

2021 Colin Barrows

2010 Steve Matson

Tetracoccus ilicifolius Holly leaved tetracoccus, Hollybush

• rare native
Shrub

PICRODENDRACEAE

2020 Matt Berger

Tetradymia argyraea Striped cottonthorn, Striped horsebrush

• rare native
Shrub

2012 Duncan S. Bell

2011 Duncan S. Bell

Tetradymia axillaris Catclaw horsebrush, Cotton catclaw, Cotton thorn

native
Shrub

2011 Steve Matson

2019 Steve Matson

Tetradymia axillaris var. axillaris Catclaw horsebrush, Longspine horsebrush

native
Shrub

2005 Steve Matson

Tetradymia axillaris var. longispina Catclaw horsebrush, Long spined cotton thorn, Longspine horsebrush

native
Shrub

2011 Steve Matson

2022 Steve Matson

Tetradymia canescens Gray horsebrush, Spineless horsebrush

native
Shrub

2015 Steve Matson

2012 Steve Matson

Tetradymia comosa Cotton thorn, Hairy horsebrush

native
Shrub

2015 Ron Vanderhoff

2017 Ron Vanderhoff

2014 Ron Vanderhoff

Tetradymia glabrata Little leaf horsebrush, Littleleaf horsebrush

native
Shrub

2022 Steve Matson

Tetradymia spinosa Shortspine horsebrush, Spiny horsebrush

native
Shrub (stem succulent)

Geoff Burleigh

2006 James M. Andre

2010 James M. Andre

Tetradymia stenolepis Mojave cottonthorn, Mojave horsebrush, Narrow scaled felt thorn

native
Shrub

2022 Steve Matson

2019 Steve Matson

Tetradymia tetrameres Four parted horsebrush, Fourpart horsebrush

• rare native
Shrub (stem succulent)

2011 Steve Matson

Tetragonia tetragonioides New zealand spinach

• invasive non-native
Annual herb

2017 James Bailey

2022 David Strauch

2009 Neal Kramer

Tetragonia tetragonoides New zealand spinach

non-native
Annual herb

2021 Michelle Karle

2023 R.A. Chasey

Hymenoxys acaulis Stemless four nerve daisy

native
Perennial herb

2008 Steve Matson

2009 Lee Dittmann

Hymenoxys acaulis var. caespitosa Stemless four nerve daisy

native
Perennial herb

2008 Steve Matson

2009 Lee Dittmann

Tetraneuris acaulis Stemless four nerve daisy

native
Perennial herb

2008 Steve Matson

2009 Lee Dittmann

Tetraneuris acaulis var. acaulis Stemless four nerve daisy

native
Perennial herb

2008 Steve Matson

2009 Lee Dittmann

Tetraneuris acaulis var. caespitosa Stemless four nerve daisy

native
Perennial herb

2008 Steve Matson

2009 Lee Dittmann

Tetraneuris acaulis var. epuncata Stemless four nerve daisy

native
Perennial herb

2008 Steve Matson

2009 Lee Dittmann

Hymenoxys acaulis var. arizonica Arizona four nerve daisy

native
Perennial herb

2008 Steve Matson

Tetraneuris acaulis var. arizonica Arizona four nerve daisy

native
Perennial herb

2008 Steve Matson

Tetrapteron graciliflorum Hill sun cup

native
Annual herb

2021 Charles Russell

2010 Richard Spjut

2016 Richard Spjut

Tetrapteron palmeri Palmer's sun cup , Palmer's evening primrose

native
Annual herb

2005 Deborah Dozier

2006 Chris Wagner, SBNF

2023 Mike Russler

Teucrium canadense Canada germander

native
Annual herb

2009 Keir Morse

Teucrium canadense var. occidentale Western germander

native
Annual herb

2009 Keir Morse

Teucrium chamaedrys Wall germander

non-native
Annual herb

Teucrium cubense ssp. depressum Lou germander, Small coastal germander

• rare native
Annual herb

2015 Wynn Anderson

Teucrium fruticans Shrubby germander

non-native
Shrub

2019 Randy Huey

2005 Luigi Rignanese

2011 Robert Steers

Teucrium glandulosum Common germander, Germander, Sticky teucrium

• rare native
Shrub

2018 Brian Keelan

Thalictrum alpinum Alpine meadow rue

• rare native
Perennial herb

2016 Steve Matson

Thalictrum fendleri Fendler's meadow rue, Meadow rue

native
Perennial herb

2006 Steve Matson

Thalictrum fendleri var. polycarpum; Fendler's meadow rue, Meadow rue

native
Perennial herb

2006 Steve Matson

Thalictrum fendleri var. fendleri Fendler's meadow rue

native
Perennial herb

2006 Steve Matson

Thalictrum fendleri var. polycarpum Fendler's meadow rue, Meadow rue, Torrey's meadow rue

native
Perennial herb

2017 Thomas Reyes

2019 Patrick Furtado

2020 Diane Etchison

Thalictrum polycarpum Fendler's meadow rue, Meadow rue, Torrey's meadow rue

native
Perennial herb

2017 Thomas Reyes

2019 Patrick Furtado

2020 Diane Etchison

Thalictrum occidentale Western meadow rue

native
Perennial herb

2006 Louis-M. Landry

2013 Jason Matthias Mills

BLM,Arcata Field Office

Thalictrum sparsiflorum Few flowered meadow rue, Fewflower meadow rue

native
Perennial herb

2021 Mike Russler

2016 Steve Matson

2022 Bob Sweatt

Thamnosma montana Turpentine broom, Turpentinebroom

native
Shrub

2016 Steve Matson

2020 David Greenberger

2016 Steve Matson

Thelesperma megapotamicum Hopi tea greenthread

non-native
Perennial herb

2007 Zoya Akulova

2014 Richard Spellenberg

2007 Zoya Akulova

Thelesperma simplicifolium Slender greenthread

non-native
Perennial herb

2009 Barry Breckling

Thelypodium brachycarpum Short podded thelypodium, Shortpod thelypody

• rare native
Perennial herb

2020 R.A. Chasey

2019 Matt Berger

2020 Joey Santore

Thelypodium crispum Crisped thelypody, Wavy leaved thelypodium

native
Annual, Perennial herb

2007 Steve Matson

Thelypodium flexuosum Nodding thelypodium, Nodding thelypody, Thelypodium

native
Perennial herb

1998 Dan Post

2008 Mary Winter

2014 Mary Winter

Thelypodium howellii ssp. howellii Howell's thelypodium, Howell's thelypody

• rare native
Perennial herb

1990 Dean Wm. Taylor

Thelypodium integrifolium ssp. affine Entireleaved thelypody, White entire leaved thelypodium

native
Perennial herb

2018 Diane Etchison

2020 Sara Timby

2020 John Rawlings

Thelypodium integrifolium ssp. complanatum Entireleaved thelypody, Lavender entire leaved thelypodium

• rare native
Perennial herb

Thelypodium integrifolium ssp. complanatum

2011 Steve Matson

2012 Steve Matson

Thelypodium laciniatum Cutleaf thelypody, Feathery thelypodium

native
Perennial herb

2011 Steve Matson

Thelypodium laciniatum var. laciniatum Cutleaf thelypody, Feathery thelypodium

native
Perennial herb

2011 Steve Matson

Thelypodium milleflorum Manyflower thelypody, Yarrow leaf thelypodium

• rare native
Perennial herb

2016 Steve Matson

Thelypodium stenopetalum Slender petaled thelypodium, Slenderpetal thelypody

• rare native
Perennial herb

2009 Thomas Stoughton

2012 Aaron Schusteff

Thelypteris puberula var. sonorensis Sonoran marsh fern

• rare native
Fern (rhizomatous)

THELYPTERIDACEAE

2020 Maisie Borg

Thermopsis californica California goldenbanner

native
Perennial herb

2020 Susan McDougall

2022 Donald Burk

2020 Donald Burk

Thermopsis californica var. calironica California goldenbanner

native
Perennial herb

2020 Susan McDougall

2022 Donald Burk

2020 Donald Burk

Thermopsis californica var. argentata Silvery false lupine

• rare native
Perennial herb (rhizomatous)

2020 Donald Burk

2020 Susan McDougall

Thermopsis californica var. californica California goldenbanner

native
Perennial herb (rhizomatous)

2021 Mike Russler

2015 James Gonsman

2021 Mike Russler

Thermopsis californica var. semota Velvety false lupine

• rare native
Perennial herb (rhizomatous)

2019 Bonnie Nickel

Thermopsis gracilis Slender goldenbanner

• rare native
Perennial herb (rhizomatous)

2020 Susan McDougall

2019 Belinda Lo

Thermopsis macrophylla California falselupine, Common false lupine, Santa inez goldenbanner

• rare native
Perennial herb

Thermopsis macrophylla var. macrophylla California falselupine, Common false lupine, Santa inez goldenbanner

• rare native
Perennial herb

Thermopsis robusta Robust false lupine, Showy goldenbanner

• rare native
Perennial herb (rhizomatous)

2023 Dana York

2018 Hayley Ross

Cascabela thevetia Luckynut

non-native
Tree, Shrub

2012 Neal Kramer

2018 Zoya Akulova

Thevetia peruviana Luckynut

non-native
Tree, Shrub

2012 Neal Kramer

2018 Zoya Akulova

Thlaspi arvense Fan weed, Field pennycress

non-native
Annual herb

2020 Bob Sweatt

2023 Donald Burk

2020 Bob Sweatt

Thuja occidentalis Arborvitae

non-native
Tree

Thuja plicata Western red cedar

native
Tree

2017 MCOSD EDRR

2008 Timothy D. Ives

2007 Dr. Mark S. Brunell

Thymophylla pentachaeta Fiveneedle pricklyleaf

native
Perennial herb

2006 Steve Matson

Thymophylla pentachaeta var. pentachaeta Fiveneedle pricklyleaf

native
Perennial herb

Thymophylla pentachaeta var. pentachaeta

2006 Steve Matson

Thymophylla pentachaeta var. belenidium Five needled thymophylla, Fiveneedle pricklyleaf

native
Perennial herb

2006 Steve Matson

2020 Matt Berger

2006 Steve Matson

Thymophylla tenuiloba var. tenuiloba Bristleleaf pricklyleaf

non-native
Annual herb

2022 Ron Vanderhoff

Thysanocarpus conchuliferus Cupped fringe pod, Santa cruz island fringepod, Santa cruz island lacepod

• rare native
Annual herb

Rick York and CNPS

Thysanocarpus curvipes Fringe pod, Fringed pod, Hairy lacepod

native
Annual herb

2019 Steve Matson

2014 Steve Matson

2016 Steve Matson

Thysanocarpus curvipes var. elegans Fringe pod, Fringed pod, Hairy lacepod

native
Annual herb

2019 Steve Matson

2014 Steve Matson

2016 Steve Matson

Thysanocarpus curvipes ssp. curvipes Fringe Pod

native
Annual herb

2016 Steve Matson

Thysanocarpus curvipes var. curvipes Fringe Pod

native
Annual herb

2016 Steve Matson

Thysanocarpus curvipes var. eradiatus Fringe Pod

native
Annual herb

2019 Steve Matson

2014 Steve Matson

Thysanocarpus desertorum Narrow leaved lacepod

native
Annual herb

2016 John Doyen

Thysanocarpus laciniatus Common lace pod, Mountain fringepod, Narrow leaved fringe pod

native
Annual herb

2021 Helen Hancock

2021 R.A. Chasey

2021 Helen Hancock

Thysanocarpus laciniatus var. crenulata Common lace pod, Mountain fringepod, Narrow leaved fringe pod

native
Annual herb

2021 Helen Hancock

2021 R.A. Chasey

2021 Helen Hancock

Thysanocarpus radians Fringe pod, Ribbed fringepod, Showy fringe pod

native
Annual herb

2020 Julie A. Kierstead

2020 Matt Berger

Thysanocarpus rigidus Rigid fringepod

• rare native
Annual herb

2015 Keir Morse

Tiarella trifoliata Sugar scoop, Threeleaf foamflower

native
Perennial herb

2006 Keir Morse

2019 Cynthia Powell

Tiarella trifoliata var. trifoliata Threeleaf foamflower, Trifoliate laceflower

• rare native
Perennial herb (rhizomatous)

2017 James Gonsman

2014 Barry Rice

2009 Barry Breckling

Tiarella trifoliata var. unifoliata Oneleaf foamflower, Sugarscoop

native
Perennial herb

2016 Steve Matson

2006 Keir Morse

Tidestromia lanuginosa Woolly tidestromia

native
Annual herb

2014 Wynn Anderson

2015 Wynn Anderson

Tidestromia suffruticosa var. oblongifolia Honeysweet

native
Annual herb

Tidestromia suffruticosa var. oblongifolia

2016 Steve Matson

2022 Mike Russler

2019 Matt Berger

Tilia americana American basswood

non-native
Tree

TILIACEAE

2006 Louis-M. Landry

2005 Dr. Mark S. Brunell

Tilia platyphyllos Largeleaf linden

non-native
Tree

TILIACEAE

Tilia tomentosa

non-native
Tree

TILIACEAE

Tillandsia usneoides Spanish moss

non-native
Perennial herb

BROMELIACEAE

2010 Barry Rice

2013 Simon J. Tonge

2010 Moorea Biocode

Timmiella anomala Timmiella moss

native
Moss

2022 Ron Vanderhoff

2013 calbryos group

2012 calbryos group

Tipuana tipu Tipa

non-native
Tree

2019 James Bailey

2019 Ron Vanderhoff

2016 Zoya Akulova

Tiquilia canescens Shrubby coldenia, Woody crinklemat

native
Perennial herb, Shrub

2006 Steve Matson

Tiquilia canescens var. canescens Gray coldenia, Woody crinklemat

native
Perennial herb, Shrub

2006 Steve Matson

Tiquilia hispidissima Hairy crinklemat

non-native
Perennial herb

Tiquilia nuttallii Nuttall's coldenia, Nuttall's crinklemat

native
Annual herb

2011 Steve Matson

2022 Steve Matson

Tiquilia palmeri Palmer's coldenia, Palmer's crinklemat

native
Perennial herb

2020 Diane Etchison

2020 Ron Vanderhoff

2013 Debra L. Cook

Tiquilia plicata Fanleaf crinklemat, Plicate coldenia

native
Perennial herb

2020 David Greenberger

2005 Steve Matson

Tolmiea diplomenziesii

native
Perennial herb

2016 Steve Matson

2021 Steve Matson

Tolmiea menziesii Pig a back plant, Youth on age

native
Perennial herb

2023 Steve Conger

2023 Mary Ann Machi

Tolpis barbata European milkwort, European umbrella milkwort

non-native
Annual, Perennial herb

2015 James Gonsman

2020 R.A. Chasey

2002 Bj�rnar Olsen

Tonella tenella Lesser baby innocence, Small flowered tonella

native
Annual herb

2021 Helen Hancock

2008 Steve Matson

2019 Belinda Lo

Tonestus eximius Lake tahoe serpentweed, Tahoe tonestus

• rare native
Perennial herb (rhizomatous)

2020 Bob Sweatt

Tonestus peirsonii Peirson's haplopappus, Peirson's serpentweed

• rare native
Perennial herb

2014 Steve Matson

Torenia fournieri Bluewings

non-native
Perennial herb

Torilis arvensis Field hedge parsley, Spreading hedgeparsley, Tall Sock-Destroyer

• invasive non-native
Annual herb

2019 Ron Vanderhoff

2017 Gary McDonald

2018 Lindsey Hack

Torilis japonica Japanese hedge parsely

non-native
Annual herb

2016 Friends of Five Creeks volunteers

2011 Jean Pawek

2018 Friends of Five Creeks volunteers

Torilis nodosa Hedge parsley, Knotted hedge parsley, Knotted hedgeparsley

non-native
Annual herb

2011 Steve Matson

Torreya californica California nutmeg, California torreya

native
Tree

TAXACEAE

2022 SPI Botany

2020 Ken Hickman

2022 Jenell Jackson

Torreyochloa erecta Spiked false mannagrass, Spiked mannagrass, Upright mannagrass

native
Perennial grass

2006 Steve Matson

2022 John Rawlings

Torreyochloa pallida var. pauciflora Mannagrass, Pale false mannagrass, Weak mannagrass

native
Perennial grass (rhizomatous)

2019 Matt Berger

2020 John Rawlings

Pseudostellaria jamesiana Tuber starwort

native
Perennial herb

2020 Bob Sweatt

2021 Mike Russler

2019 Julie A. Kierstead

Stellaria jamesiana Tuber starwort

native
Perennial herb

2020 Bob Sweatt

2021 Mike Russler

2019 Julie A. Kierstead

Tortella fragilis Fragile tortella moss

native
Moss

2013 Scot Loring

Tortula californica California tortula moss

• rare native
Moss

2019 Neil Uelman

2013 Rob Weiss

2016 Neil Uelman

Townsendia condensata Cushion townsend daisy, Hairy townsendia

• rare native
Perennial herb

2015 Steve Matson

2016 Steve Matson

Townsendia leptotes Common townsend daisy, Common townsendia

• rare native
Perennial herb

2022 Richard Sullivan

Townsendia parryi Parry's townsend daisy, Parry's townsendia

native
Perennial herb

2007 Eve Wills

2011 Ryan Batten

Townsendia scapigera Tufted townsend daisy, Tufted townsendia

native
Perennial herb

2020 Matt Berger

2009 Steve Matson

2008 Steve Matson

Toxicodendron diversilobum Poison oak, Poisonoak, Western Poison Oak

native
Vine, Shrub

2020 Ron Vanderhoff

2019 Randy Huey

2021 Bryant Baker

Toxicoscordion brevibracteatum Desert death camas

native
Perennial herb

2021 Bryant Baker

2017 Jonathon Holguin

Geoff Burleigh

Toxicoscordion exaltatum Giant death camas

native
Perennial herb

2020 Matt Berger

2022 BOB CASE

2020 Matt Berger

Zigadenus exaltatus Giant death camas

native
Perennial herb

2020 Matt Berger

2022 BOB CASE

2020 Matt Berger

Toxicoscordion fontanum Marsh zigadenus

• rare native
Perennial herb

2020 Susan McDougall

2021 Cynthia Powell

Zigadenus micranthus var. fontanus Marsh zigadenus

• rare native
Perennial herb

2020 Susan McDougall

2021 Cynthia Powell

Toxicoscordion fremontii Fremont's star lily, Fremont's death camas

native
Perennial herb

2020 Bryant Baker

2021 Steve Matson

2020 Karen Swift

Toxicoscordion fremontii var. minor Fremont's star lily, Fremont's death camas

native
Perennial herb

2020 Bryant Baker

2021 Steve Matson

2020 Karen Swift

Zigadenus fremontii Fremont's star lily, Fremont's death camas

native
Perennial herb

2020 Bryant Baker

2021 Steve Matson

2020 Karen Swift

Toxicoscordion micranthum Small flowered star lily

native
Perennial herb

2021 Steve Laymon

2020 Susan McDougall

Toxicoscordion micranthus Small flowered star lily

native
Perennial herb

2021 Steve Laymon

2020 Susan McDougall

Toxicoscordion paniculatum Foothill deathcamas

native
Perennial herb

2005 Steve Matson

2008 Steve Matson

Zigadenus paniculatus Foothill deathcamas

native
Perennial herb

2005 Steve Matson

2008 Steve Matson

Toxicoscordion venenosum Meadow deathcamas

native
Perennial herb

2022 Steve Matson

2016 Steve Matson

Toxicoscordion venenosum var. gramineum Meadow deathcamas

native
Perennial herb

2022 Steve Matson

2016 Steve Matson

Zigadenus venenosus Meadow deathcamas

native
Perennial herb

2022 Steve Matson

2016 Steve Matson

Zigadenus venenosus var. gramineus Meadow deathcamas

native
Perennial herb

2022 Steve Matson

2016 Steve Matson

Toxicoscordion venenosum var. venenosum Meadow deathcamas

native
Perennial herb

2016 Steve Matson

Zigadenus venenosus var. venenosus Meadow deathcamas

native
Perennial herb

2016 Steve Matson

Trachelospermum jasminoides Confederate jasmine

non-native
Perennial herb

2021 Ron Vanderhoff

Tracyina rostrata Beaked tracyina, Indian headdress

• rare native
Annual herb

2018 John Game

2019 John Game

Tradescantia fluminensis Small leaf spiderwort

non-native
Perennial herb

2018 Amy Rapport

2016 David Greenberger

2022 stephany dery

Tradescantia ohiensis Bluejacket

non-native
Perennial herb

2005 Louis-M. Landry

1998 Nick Kurzenko

Tragia ramosa Branched noseburn, Desert noseburn

• rare native
Perennial herb

2012 Keir Morse

2020 Matt Berger

Tragopogon dubius Goat's beard, Yellow salsify

• invasive non-native
Perennial herb

2023 Ken Lunders

2020 Bob Sweatt

2019 Liz Block

Tragopogon porrifolius Purple salsify

non-native
Perennial herb

2019 Julie dinsdale

2015 David Wolfson

2020 Martin Cooper

Tragopogon pratensis Jack go to bed at noon, Meadow salsify

non-native
Perennial herb

2018 Alex Spencer

Tragopogon pratensis ssp. orientalis Jack go to bed at noon, Meadow salsify

non-native
Perennial herb

2018 Alex Spencer

Transberingia bursifolia ssp. virgata Virgate halimolobos

• rare native
Perennial herb

2015 Steve Matson

Trautvetteria caroliniensis Carolina bugbane

native
Perennial herb

2015 Kit Davenport

2022 Dana York

2020 Matt Berger

Trautvetteria caroliniensis var. occidentalis Carolina bugbane

native
Perennial herb

Trautvetteria caroliniensis var. occidentalis

2015 Kit Davenport

2022 Dana York

2020 Matt Berger

Sapium sebiferum Chinese tallowtree

• invasive non-native
Tree

2013 Ron Vanderhoff

2019 Ron Vanderhoff

2013 Ron Vanderhoff

Triadica sebifera Chinese tallowtree

• invasive non-native
Tree

2013 Ron Vanderhoff

2019 Ron Vanderhoff

2013 Ron Vanderhoff

Triantha glutinosa Sticky tofieldia

non-native
Perennial herb

Triantha occidentalis Western false asphodel

native
Perennial herb

2023 Ken-ichi Ueda

2018 Matt Berger

2022 Dana York

Triantha occidentalis ssp. brevistyla Western false asphodel

native
Perennial herb

2023 Ken-ichi Ueda

2018 Matt Berger

2022 Dana York

Triantha occidentalis ssp. montana Western false asphodel

native
Perennial herb

2023 Ken-ichi Ueda

2018 Matt Berger

2022 Dana York

Tofieldia glutinosa ssp. occidentalis Western false asphodel

native
Perennial herb

2004 Steve Matson

Triantha occidentalis ssp. occidentalis Western false asphodel

native
Perennial herb

2004 Steve Matson

Sesuvium portulacastrum Desert horsepurslane, Horse purslane, Lowland purslane

native
Annual herb

2018 Dan Williams

2004 James M. Andre

Trianthema portulacastrum Desert horsepurslane, Horse purslane, Lowland purslane

native
Annual herb

2018 Dan Williams

2004 James M. Andre

Tribulus terrestris Puncture vine, Puncturevine

• invasive non-native
Annual herb

2015 Steve Matson

2020 Ron Vanderhoff

2020 Maura Hay

Tricardia watsonii Three hearts, Threehearts

native
Perennial herb

2020 Matt Berger

2020 Steve Matson

Trichocoronis wrightii var. wrightii Wright's trichocoronis

• rare native
Annual herb

2011 Karyn Lea Drennen

2015 Richard Spellenberg

2011 Karyn Lea Drennen

Trichophorum clementis Yosemite bulrush

native
Perennial grasslike herb

2008 Steve Matson

Trichophorum pumilum Rolland's bulrush

• rare native
Perennial grasslike herb (rhizomatous)

2016 Steve Matson

Trichoptilium incisum Yellow head, Yellowdome, Yellowhead

native
Annual herb

2019 Matt Berger

Trichostema austromontanum ssp. austromontanum San jacinto bluecurls, Southern bluecurls

native
Annual herb

Trichostema austromontanum ssp. austromontanum

2021 Mike Russler

Trichostema austromontanum ssp. compactum Hidden lake bluecurls, San jacinto bluecurls

• rare native
Annual herb

Trichostema austromontanum ssp. compactum

2012 Keir Morse

Trichostema lanatum Woolly bluecurls

native
Shrub

2022 Mike Russler

2019 Diane Etchison

2022 Mike Russler

Trichostema lanatum var. aginina Woolly bluecurls

native
Shrub

2022 Mike Russler

2019 Diane Etchison

2022 Mike Russler

Trichostema lanceolatum Vinegarweed

native
Annual herb

2018 Ron Vanderhoff

2016 Nathan Mudry

2019 Aaron Echols

Trichostema laxum Turpentine weed

native
Annual herb

2023 Steve Conger

2020 John Game

2021 Steve Laymon

Trichostema micranthum Small flowered bluecurls, Smallflower bluecurls

• rare native
Annual herb

2016 Keir Morse

Trichostema oblongum Mountain bluecurls, Oblong bluecurls

native
Annual herb

2021 Mike Russler

2012 Steve Matson

2021 Mike Russler

Trichostema ovatum San joaquin bluecurls

• rare native
Annual herb

2020 John Game

2021 Mike Russler

Trichostema parishii Parish's bluecurls

native
Shrub

2022 Ron Vanderhoff

2010 Gary A. Monroe

Trichostema rubisepalum Hernandez bluecurls

• rare native
Annual herb

2021 Mike Russler

Trichostema ruygtii Napa bluecurls

• rare native
Annual herb

2022 R.A. Chasey

Trichostema simulatum Siskiyou bluecurls

native
Annual herb

2023 Keir Morse

Tridens muticus Slim tridens

native
Perennial grass

2016 Keir Morse

2015 Belinda Lo

Tridens muticus var. muticus Slim tridens

native
Perennial grass

2016 Keir Morse

2015 Belinda Lo

Trifolium albopurpureum Indian clover, Rancheria clover

native
Annual herb

2023 Mary Gerbic

2021 Mike Russler

Trifolium albopurpureum var. albopurpureum Indian clover, Rancheria clover

native
Annual herb

Trifolium albopurpureum var. albopurpureum

2023 Mary Gerbic

2021 Mike Russler

Trifolium neolagopus Indian clover, Rancheria clover

native
Annual herb

2023 Mary Gerbic

2021 Mike Russler

Trifolium alexandrinum Egyptian clover

non-native
Annual herb

2013 Jake Ruygt

2018 Zoya Akulova

Trifolium amoenum Showy indian clover

• rare native
Annual herb

2017 James Gonsman

1997 Doreen L. Smith

2009 Doreen L. Smith

Trifolium andersonii ssp. andersonii Anderson's clover

• rare native
Perennial herb

2008 Steve Matson

Trifolium andersonii ssp. beatleyae Beatley's five-leaved clover

native
Perennial herb

2009 Steve Matson

Trifolium angustifolium Narrow leaved clover, Narrowleaf crimson clover

non-native
Annual herb

2019 Gary McDonald

2021 Mary Gerbic

2022 SMCP NRM Intern

Trifolium appendiculatum Large variegated clover

native
Annual herb

2023 R.A. Chasey

Trifolium variegatum var. major Large variegated clover

native
Annual herb

2023 R.A. Chasey

Trifolium arvense Rabbitfoot clover

non-native
Annual herb

2018 Gary McDonald

2020 R.A. Chasey

Trifolium aureum Golden clover, Hop clover

non-native
Annual herb

2005 Louis-M. Landry

2007 Louis-M. Landry

Trifolium barbigerum Bearded clover

native
Annual herb

2023 R.A. Chasey

2010 Toni Corelli

2017 Toni Corelli

Trifolium beckwithii Beckwith's clover

native
Perennial herb

1995 Gary A. Monroe

2008 Steve Matson

Trifolium bifidum Notch leaf clover, Notchleaf clover, Pinole clover

native
Annual herb

2022 R.A. Chasey

2019 Alice Cummings

2022 R.A. Chasey

Trifolium bifidum var. bifidum Pinole clover

native
Annual herb

2020 Matt Berger

Trifolium bifidum var. decipiens Notch leaf clover

native
Annual herb

2022 R.A. Chasey

2021 Cameron Chabre

Trifolium bolanderi Bolander's clover, Parasol clover

• rare native
Perennial herb

2021 Mike Russler

Trifolium breweri Brewer's clover, Forest clover

native
Perennial herb

2022 Jamie Spielmann

2016 David popp

2020 David popp

Trifolium buckwestiorum Santa cruz clover

• rare native
Annual herb

2011 Dylan Neubauer

1997 Doreen L. Smith

Trifolium campestre Field clover, Low hop clover

non-native
Annual herb

2019 David Wolfson

2021 R.A. Chasey

Trifolium cernuum Nodding clover

non-native
Annual herb

2002 Doreen L. Smith

2010 Zoya Akulova

Trifolium ciliolatum Foothill clover, Tree clover

native
Annual herb

2020 Diane Etchison

2015 Diane Etchison

2019 Ron Vanderhoff

Trifolium olivaceum Olive clover

native
Annual herb

2017 David popp

2021 Dianne Lake

Trifolium cyathiferum Bowl clover, Cup clover

native
Annual herb

2003 Steve Matson

2023 R.A. Chasey

Trifolium depauperatum Cowbag clover, Dwarf sack clover, Pale sack clover

native
Annual herb

2021 Steve Matson

2022 Ken-ichi Ueda

Trifolium amplectens Balloon sack clover, Pale bladder clover, Pale sack clover

native
Annual herb

2018 David Greenberger

2013 Andrea Williams

2018 David Greenberger

Trifolium depauperatum var. depauperatum Cowbag clover, Dwarf bladder clover, Dwarf sack clover

native
Annual herb

Trifolium depauperatum var. depauperatum

2021 Steve Matson

Trifolium depauperatum var. stenophyllum Dwarf sack clover

native
Annual herb

Trifolium depauperatum var. stenophyllum

2021 Ron Vanderhoff

2023 Steven Mills Glascock

2021 Ron Vanderhoff

Trifolium depauperatum var. truncatum Dwarf sack clover

native
Annual herb

2021 Ron Vanderhoff

2023 Steven Mills Glascock

2021 Ron Vanderhoff

Trifolium stenophyllum Dwarf sack clover

native
Annual herb

2021 Ron Vanderhoff

2023 Steven Mills Glascock

2021 Ron Vanderhoff

Trifolium albopurpureum var. dichotomum Branched indian clover

native
Annual herb

2023 Helen Hancock

2022 Helen Hancock

2023 Helen Hancock

Trifolium dichotomum Branched indian clover

native
Annual herb

2023 Helen Hancock

2022 Helen Hancock

2023 Helen Hancock

Trifolium dubium Shamrock clover, Little Hop Clover, Suckling clover

non-native
Annual herb

2018 Stacie Wolny

2022 Dana York

2017 MCOSD EDRR

Trifolium eriocephalum Woollyhead clover

native
Perennial herb

2019 Susan McDougall

2010 Christopher L. Christie

Trifolium eriocephalum ssp. eriocephalum Woollyhead clover

native
Perennial herb

Trifolium eriocephalum ssp. eriocephalum

2022 Steve Matson

Trifolium eriocephalum var. eriocephalum Woollyhead clover

native
Perennial herb

Trifolium eriocephalum var. eriocephalum

2022 Steve Matson

Trifolium fragiferum Strawberry clover

non-native
Perennial herb

2020 Ron Vanderhoff

2022 Dana York

Trifolium flavulum Bull clover, Sour clover

native
Annual herb

2014 Steve Matson

2020 Paul Aigner

Trifolium fucatum Bull clover, Sour clover

native
Annual herb

2014 Steve Matson

2020 Paul Aigner

Trifolium gambelii Bull clover, Sour clover

native
Annual herb

2014 Steve Matson

2020 Paul Aigner

Trifolium glomeratum Clustered clover

non-native
Annual herb

2012 Michael Mitchell

2023 Donald Burk

Trifolium gracilentum Graceful clover, Pin point clover, Pinpoint clover

native
Annual herb

2016 Steve Matson

Trifolium grayi Gray's clover

native
Annual herb

2023 Matt Berger

2007 Toni Corelli

2023 Matt Berger

Trifolium grayi var. 14 Gray's clover

native
Annual herb

2023 Matt Berger

2007 Toni Corelli

2023 Matt Berger

Trifolium gymnocarpon Hollyleaf clover

native
Perennial herb

2012 Dean Wm. Taylor

Trifolium gymnocarpon ssp. plummerae Plummer's clover

• rare native
Perennial herb

2021 Sarah Tona

2012 Dean Wm. Taylor

Trifolium hirtum Rose clover

• invasive non-native
Annual herb

2011 Steve Matson

Trifolium howellii Canyon clover, Howell's clover

• rare native
Perennial herb

2021 Julie A. Kierstead

Trifolium hybridum Alsike clover

non-native
Perennial herb

2008 Keir Morse

2015 Barry Breckling

2012 Zoya Akulova

Trifolium hydrophilum Saline clover

• rare native
Annual herb

2005 Dean Wm. Taylor

2005 Aaron Schusteff

Trifolium incarnatum Crimson clover

non-native
Annual herb

2008 Steve Matson

Trifolium jokerstii Jim's clover, Butte County Golden Clover

• rare native
Annual herb

2021 Steve Laymon

2020 David popp

Trifolium kingii King's clover

native
Perennial herb

2020 David popp

2009 Steve Matson

Trifolium kingii ssp. dedeckerae Dedecker's clover

native
Perennial herb

2009 Steve Matson

Trifolium lemmonii Lemmon's clover

• rare native
Perennial herb

2010 Steve Matson

Trifolium longipes Long stalked clover, Longstalk clover, Summer clover

native
Perennial herb

2020 Bob Sweatt

2018 David popp

Trifolium longipes ssp. neurophyllum Long stalked clover, Longstalk clover, Summer clover

native
Perennial herb

2020 Bob Sweatt

2018 David popp

Trifolium longipes ssp. elmeri Elmer's clover

native
Perennial herb

2022 Dana York

2020 R.A. Chasey

Trifolium longipes ssp. hansenii Hansen's clover

native
Perennial herb

2020 R.A. Chasey

2021 David popp

2020 Susan McDougall

Trifolium longipes var. nevadense Hansen's clover

native
Perennial herb

2020 R.A. Chasey

2021 David popp

2020 Susan McDougall

Trifolium longipes ssp. oreganum Oregon clover

native
Perennial herb

2009 Dana York

2013 Dana York

Trifolium longipes ssp. shastense Longstalk clover

native
Perennial herb

2023 Alaine Arslan

2002 Gary A. Monroe

Trifolium macraei Chilean clover, Macrae's clover

native
Annual herb

2009 Toni Corelli

2022 R.A. Chasey

2021 R.A. Chasey

Trifolium macrocephalum Big headed clover, Largehead clover

native
Perennial herb

2008 Steve Matson

Trifolium microcephalum Hairy clover, Small headed clover

native
Annual herb

2005 Steve Matson

2016 Michael Mitchell

2019 Ron Vanderhoff

Trifolium microdon Thimble clover, Valparaiso clover

native
Annual herb

2022 Dee Shea Himes

2023 R.A. Chasey

Trifolium monanthum Carpet clover, Mountain carpet clover

native
Perennial herb

2016 Steve Matson

2003 Steve Matson

2016 Steve Matson

Trifolium monanthum ssp. grantianum Grant's carpet clover

native
Perennial herb

2015 Keir Morse

Trifolium monanthum ssp. monanthum Carpet clover

native
Perennial herb

2016 Steve Matson

Trifolium monanthum var. monanthum Carpet clover

native
Perennial herb

2016 Steve Matson

Trifolium monanthum ssp. parvum Small carpet clover

native
Perennial herb

2023 R.A. Chasey

Trifolium monanthum ssp. tenerum Delicate carpet clover

native
Perennial herb

2003 Steve Matson

2018 Mary Merriman

Trifolium obtusiflorum Clammy clover, Creek clover

native
Annual herb

2019 Ron Vanderhoff

Trifolium oliganthum Few flowered clover, Fewflower clover, Minitomcat clover

native
Annual herb

2023 Helen Hancock

2022 Mary Merriman

2023 R.A. Chasey

Trifolium albopurpureum var. olivaceum Olive clover

native
Annual herb

2011 Jennifer Buck

2015 Aaron Schusteff

Trifolium palmeri Southern island clover

• rare native
Annual herb

2011 Dylan Neubauer

Trifolium piorkowskii Piorkowski's clover

• rare native
Annual herb

2018 Al Keuter

Trifolium polyodon Pacific grove clover

• rare native
Annual herb

2017 Lynn Overtree

2011 Dylan Neubauer

Trifolium polyodon var. oligodon Pacific grove clover

• rare native
Annual herb

2017 Lynn Overtree

2011 Dylan Neubauer

Trifolium pratense Red clover

non-native
Perennial herb

2019 David Greenberger

2021 Bob Sweatt

2023 R.A. Chasey

Trifolium pratense ssp. nivale Red clover

non-native
Perennial herb

2019 David Greenberger

2021 Bob Sweatt

2023 R.A. Chasey

Trifolium productum Productive clover

native
Perennial herb

2005 Steve Matson

Trifolium repens White clover

non-native
Perennial herb

2017 Gary McDonald

2007 Steve Matson

2017 Gary McDonald

Trifolium resupinatum Reversed clover

non-native
Annual herb

2022 R.A. Chasey

2019 James Gonsman

Trifolium stellatum Star clover

non-native
Annual herb

2007 Luigi Rignanese

2006 Luigi Rignanese

Trifolium striatum Knotted clover

non-native
Annual herb

2023 R.A. Chasey

2007 Keir Morse

2023 Ellen Uhler

Trifolium subterraneum Sub clover, Subterranean clover

non-native
Annual herb

2008 Steve Matson

2017 Steve Matson

Trifolium suffocatum Suffocated clover

non-native
Perennial herb

2013 Neal Kramer

2014 Neal Kramer

2015 Neal Kramer

Trifolium tomentosum Woolly clover

non-native
Annual herb

2009 Toni Corelli

2016 Cynthia Powell

2019 Ramona Robison

Trifolium trichocalyx Monterey clover

• rare native
Annual herb

2011 Kerry Heise

Trifolium melananthum Variegated clover, White tipped clover, Whitetip clover

native
Annual herb

2022 Steve Matson

2017 Michael Mitchell

2019 Diane Etchison

Trifolium variegatum Variegated clover, White tipped clover, Whitetip clover

native
Annual herb

2022 Steve Matson

2017 Michael Mitchell

2019 Diane Etchison

Trifolium variegatum var. geminiflorum Small-flowered variegated clover

native
Annual herb

2023 Mike Russler

Trifolium variegatum var. variegatum Variegated clover

native
Annual herb

2022 R.A. Chasey

2017 Ramona Robison

Trifolium vesiculosum Arrowleaf clover

non-native
Annual herb

2017 Asa B Spade

2012 Zoya Akulova-Barlow

Trifolium willdenovii Tomcat clover

native
Annual herb

2019 Ron Vanderhoff

2018 Stacie Wolny

Trifolium wormskioldii Coast clover, Cow clover, Cows clover

native
Perennial herb

2003 Steve Matson

Triglochin concinna Arrow grass, Utah arrowgrass

native
Perennial herb (aquatic)

2022 Julie A. Kierstead

2022 Ken-ichi Ueda

2023 R.A. Chasey

Triglochin concinna var. concinna Arrow grass

native
Perennial herb (aquatic)

2021 Ken-ichi Ueda

Triglochin concinna var. debilis Slender arrow grass

native
Perennial herb (aquatic)

2013 Steve Matson

Triglochin maritima Arrowgrass, Seaside arrow grass, Seaside arrowgrass

native
Perennial herb (aquatic)

2021 Cynthia Powell

2021 Cynthia Powell and Michele Hammond's nostril; smells a bit like bleach

2008 Steve Matson

Triglochin palustris Marsh arrow grass, Marsh arrowgrass

• rare native
Perennial herb (aquatic)

2008 Steve Matson

Triglochin scilloides Flowering-quillwort

native
Annual herb (aquatic)

2018 Carol Witham

2023 Ron Vanderhoff

2011 Hattie Brown

Triglochin striata Three ribbed arrow grass, Threerib arrowgrass

native
Perennial herb (aquatic)

2022 Ken Hickman

2021 Jutta Burger

2021 John Game

Trigonella corniculata Cultivated fenugreek

non-native
Annual herb

2007 Luigi Rignanese

Trillium albidum Giant white wakerobin

native
Perennial herb

2016 Ray Gill

2022 Doug Zimmerman

2019 William Maslach

Trillium angustipetalum Narrow petaled wakerobin, Narrowpetal wakerobin

native
Perennial herb

2019 Kolby Lundgren

2015 Nathan Feldman

2020 Susan McDougall

Trillium kurabayashii Narrow petaled wakerobin, Narrowpetal wakerobin

native
Perennial herb

2019 Kolby Lundgren

2015 Nathan Feldman

2020 Susan McDougall

Trillium chloropetalum Common trillium, Giant wakerobin, Trillium

native
Perennial herb

2019 Susan McDougall

2020 R.A. Chasey

2020 Nelson Wilhite

Trillium chloropetalum ssp. val Common trillium, Giant wakerobin, Trillium

native
Perennial herb

2019 Susan McDougall

2020 R.A. Chasey

2020 Nelson Wilhite

Trillium sessile Common trillium, Giant wakerobin, Trillium

native
Perennial herb

2019 Susan McDougall

2020 R.A. Chasey

2020 Nelson Wilhite

Trillium ovatum ssp. oettingeri Salmon Mountains Wakerobin

• rare native
Perennial herb

2021 Dana York

2022 Jamie Spielmann

2017 Michael Kauffmann

Trillium ovatum Pacific trillium, Wake robin, Western trillium

native
Perennial herb

2017 Steve Matson

Trillium ovatum var. roy Pacific trillium, Wake robin, Western trillium

native
Perennial herb

2017 Steve Matson

Trillium ovatum ssp. ovatum Pacific trillium, Western wakerobin

native
Perennial herb

2017 Steve Matson

2021 Terrence Willett

2021 Steve Matson

Triodanis biflora Venus looking glass, Venus' looking glass

native
Annual herb

2020 Ken Hickman

2015 Hayley Ross

2018 Ken Hickman

Triodanis perfoliata Clasping venus looking glass, Clasping venus' looking glass

native
Annual herb

2017 Keir Morse

2016 Keir Morse

2008 Sean B. Smith

Triodanis perfoliata var. perfoliata Clasping venus looking glass, Clasping venus' looking glass

native
Annual herb

2017 Keir Morse

2016 Keir Morse

2008 Sean B. Smith

Triphysaria eriantha Butter 'n' eggs, Johnny tuck, Johnnytuck

native
Annual herb

2021 Steve Matson

2017 Dee Warenycia

Triphysaria eriantha ssp. eriantha Butter 'n' eggs, Johnny tuck

native
Annual herb

2005 Steve Matson

2021 Steve Matson

2008 Steve Matson

Triphysaria eriantha ssp. rosea Johnny tuck, Pink butter 'n' eggs

native
Annual herb

2017 Gary Morgret

2017 Cynthia Powell

2020 Mary Sue Ittner

Triphysaria floribunda San francisco owl's clover

• rare native
Annual herb

2017 Steve Matson

Triphysaria micrantha Little butter 'n' eggs, Purplebeak owl's clover

native
Annual herb

2006 Steve Matson

Triphysaria pusilla Dwarf owl's clover, Little owl's clover

native
Annual herb

2018 Steve Matson

Triphysaria versicolor Yellow owl's clover, Yellowbeak owl's clover

native
Annual herb

2021 Helen Hancock

2023 Mary Ann Machi

2024 Mary Ann Machi

Triphysaria versicolor ssp. faucibarbata Yellow owl's clover, Yellowbeak owl's clover

native
Annual herb

Triphysaria versicolor ssp. faucibarbata

2021 Helen Hancock

2021 Mike Russler

2019 Suzanne L. Weakley

Triphysaria versicolor ssp. versicolor Yellow owl's clover, Yellowbeak owl's clover

native
Annual herb

2019 Toni Corelli

2023 Julia King

2019 Toni Corelli

Matricaria inodora False mayweed

non-native
Annual herb

2021 Donald Burk

2020 Donald Burk

2022 Donald Burk

Tripleurospermum inodorum False mayweed

non-native
Annual herb

2021 Donald Burk

2020 Donald Burk

2022 Donald Burk

Tripleurospermum maritimum False mayweed

non-native
Annual herb

2021 Donald Burk

2020 Donald Burk

2022 Donald Burk

Matricaria maritima False mayweed

non-native
Annual herb

Gerald and Buff Corsi2002 California Academy of Sciences

Tripterocalyx crux-maltae Lassen sand verbena, Lassen sandverbena

• rare native
Annual herb

2009 Gary A. Monroe

1993 Gary A. Monroe

Tripterocalyx micranthus Little sand verbena, Smallflower sandverbena

• rare native
Annual herb

2010 Ron Wolf

2005 James M. Andre

Triquetrella californica California triquetrella moss

• rare native
Moss

2004 John Game

2017 Neal Kramer

Trisetum canescens Nodding oatgrass, Nodding trisetum, Tall trisetum

native
Perennial grass

2020 John Rawlings

2011 Steve Matson

2022 Ellen Uhler

Trisetum cernuum Nodding oatgrass, Nodding trisetum

native
Perennial grass

2019 Kimberly Moses

2011 Steve Matson

Trisetum projectum

native
Perennial grass

2022 John Rawlings

2011 Steve Matson

Trisetum spicatum Narrow oatgrass, Spike trisetum

native
Perennial grass

2002 Steve Matson

Trisetum wolfii Beardless oatgrass, Wolf's trisetum

native
Perennial grass

2009 Steve Matson

Triteleia bridgesii Bridges' brodiaea

native
Perennial herb

2016 Steve Matson

2009 Bob Case

Triteleia clementina San clemente island triteleia

• rare native
Perennial herb (bulb)

2008 Kim M. Klementowski

2005 Dieter Wilken

Triteleia crocea Yellow brodiaea, Yellow triplet lily, Yellow triteleia

native
Perennial herb

2021 Steve Matson

2020 Jeff Bisbee

Triteleia crocea var. modesta Trinity mountains pretty face, Yellow triteleia

• rare native
Perennial herb (bulb)

2023 Morgan Stickrod

2023 Seth Beres

2000 John Game

Triteleia dudleyi Dudley's triplet lily, Dudley's triteleia

native
Perennial herb

2020 Jeff Bisbee

Triteleia grandiflora Largeflower triteleia

• rare native
Perennial herb

2023 Amy Rachkowski

Triteleia grandiflora var. grandiflora Largeflower triteleia

• rare native
Perennial herb

2023 Amy Rachkowski

Triteleia grandiflora var. howellii Largeflower triteleia

• rare native
Perennial herb

2023 Amy Rachkowski

Triteleia howellii Largeflower triteleia

• rare native
Perennial herb

2023 Amy Rachkowski

Triteleia hendersonii Henderson's triteleia

• rare native
Perennial herb (bulb)

2023 Amy Rachkowski

2000 Dianne Fristrom

Triteleia hendersonii var. hendersonii Henderson's triteleia

• rare native
Perennial herb (bulb)

2023 Amy Rachkowski

2000 Dianne Fristrom

Triteleia hendersonii var. leachiae Henderson's triteleia

• rare native
Perennial herb (bulb)

2023 Amy Rachkowski

2000 Dianne Fristrom

Triteleia hyacinthina White brodiaea, Wild hyacinth, White Brodiaea, Fool's Onion

native
Perennial herb

2023 Suzanne L. Weakley

2008 Steve Matson

2020 Steve Conger

Triteleia ixioides Golden brodiaea, Pretty face, Prettyface

native
Perennial herb

2022 Steve Matson

2019 Steve Matson

Triteleia ixioides ssp. anilina Mountain pretty face, Prettyface

native
Perennial herb

2003 Steve Matson

2019 Steve Matson

Triteleia ixioides ssp. cookii Cook's triteleia

• rare native
Perennial herb (bulb)

2000 Joseph Dougherty/ecology.org

Triteleia ixioides ssp. ixioides Golden brodiaea

native
Perennial herb

2020 Mary Conway

2019 Mary Conway

2020 John Rawlings

Triteleia ixioides ssp. scabra Foothill triteleia, Prettyface

native
Perennial herb

2017 Dee Shea Himes

2024 Mike Russler

Triteleia ixioides ssp. unifolia Prettyface

native
Perennial herb

2018 David popp

2016 Debra L. Cook

Triteleia laxa Ithuriel's spear

native
Perennial herb

2018 Gary McDonald

2018 Tim Lewis

2019 Matt Berger

Triteleia lilacina Foothill triteleia, Lilac pretty face

native
Perennial herb (bulb)

2005 Steve Matson

Triteleia lugens Coast range triplet lily, Coast range triteleia

• rare native
Perennial herb

2020 Jeff Bisbee

Triteleia montana Mountain triteleia, Sierra triteleia, Slender brodiaea

native
Perennial herb

2020 Jeff Bisbee

2019 David popp

2021 Mike Russler

Triteleia peduncularis Long ray brodiaea, Long rayed brodiaea, Marsh triteleia

native
Perennial herb

2021 Suzanne L. Weakley

2020 John Game

2021 Suzanne L. Weakley

Triteleia piutensis Piute mountains triteleia

• rare native
Perennial herb

2020 Jeff Bisbee

2019 Matt Berger

Triticum aestivum Common wheat, Wheat

non-native
Annual grass

2022 Lenihan Mazur

2021 John Rawlings

2021 Julian Geoghegan

Triticum turgidum Rivet wheat

non-native
Annual grass

Trixis californica American threefold

native
Shrub

2021 Ron Vanderhoff

Trixis californica var. californica California trixis, Trixis

native
Shrub

2020 David Greenberger

2019 Matt Berger

2021 Ron Vanderhoff

Tropaeolum majus Garden nasturtium, Nasturtium

• invasive non-native
Annual herb, Vine

TROPAEOLACEAE

2021 Julie A. Kierstead

2024 Mike Russler

2022 Ron Vanderhoff

Tropidocarpum californicum King's gold

• rare native
Perennial herb

2015 Dean Wm. Taylor

2017 Robert E. Preston, Ph.D.

Twisselmannia californica King's gold

• rare native
Perennial herb

2015 Dean Wm. Taylor

2017 Robert E. Preston, Ph.D.

Tropidocarpum capparideum Caper fruited tropidocarpum, Caperfruit tropidocarpum

• rare native
Annual herb

2002 Dieter Wilken

2004 Laura Ann Eliassen

Tropidocarpum gracile Dobie pod, Slender keel fruit, Slender tropidocarpum

native
Annual herb

2014 Steve Matson

Tsuga heterophylla Western hemlock

native
Tree

2018 Claire Brown

2010 Keir Morse

2016 Zoya Akulova

Tsuga mertensiana Mountain hemlock

native
Tree

2022 Cynthia Powell

2018 Matt Berger

2018 Eric Waller

Tuberaria guttata European frostweed, Tuberaria

non-native
Annual, Perennial herb

2013 David popp

2013 James Gonsman

2000 George W. Hartwell

Tuctoria greenei Awnless spiralgrass, Greene's tuctoria

• rare native
Annual grass

2023 Justin Chappelle

2008 Heather Davis

Tuctoria mucronata Crampton's tuctoria, Prickly spiralgrass

• rare native
Annual grass

2019 Greg Kareofelas

Tulipa clusiana var. 'cynthia' Lady tulip

non-native
Perennial herb (bulb)

2007 Joseph Dougherty, M.D./ecology.org

Arabis glabra var. glabra Tower rockcress

native
Perennial herb

2021 David Wolfson

2021 Mike Russler

2020 Chico Hiking Association

Turritis glabra Tower rockcress

native
Perennial herb

2021 David Wolfson

2021 Mike Russler

2020 Chico Hiking Association

Typha angustifolia Nail rod, Narrow leaf cattail, Narrowleaf cattail

non-native
Perennial herb (aquatic)

2019 Ron Vanderhoff

2021 Ron Vanderhoff

Typha domingensis Narrowleaf cattail, Southern cattail

native
Perennial herb

2020 Ron Vanderhoff

2023 Ron Vanderhoff

Typha latifolia Broadleaf cattail, Common cattail, Soft flag

native
Perennial herb (aquatic)

2013 Steve Matson

Ulex europaeus Common gorse

• invasive non-native
Shrub

2021 Zoya Akulova-Barlow

2022 Michelle Karle

2021 Cleopatra Tuday

Ulmus americana American elm

non-native
Tree

2020 Diana Wahl

2008 Jason E. Willand

2005 Louis-M. Landry

Ulmus glabra Wych elm

non-native
Tree

2007 Louis-M. Landry

2013 Phil Pullen

Ulmus minor Smooth leaved elm, english elm

non-native
Tree

2013 Arcangelo Wessells

2020 Donald Burk

2013 Arcangelo Wessells

Ulmus minor ssp. minor Smooth leaved elm, english elm

non-native
Tree

2013 Arcangelo Wessells

2020 Donald Burk

2013 Arcangelo Wessells

Ulmus procera Smooth leaved elm, english elm

non-native
Tree

2013 Arcangelo Wessells

2020 Donald Burk

2013 Arcangelo Wessells

Ulmus parvifolia Chinese elm, Siberian elm

non-native
Tree

2021 Ron Vanderhoff

2020 Ron Vanderhoff

2019 Ron Vanderhoff

Ulmus pumila Siberian elm

• invasive non-native
Tree

2020 Ron Vanderhoff

2015 Steve Matson

2021 Donald Burk

Ulmus thomasii Rock elm

non-native
Tree

Umbellularia californica Bay laurel, California bay, California laurel, bay tree

native
Tree

2023 Mary Ann Machi

2016 Steve Matson

2023 Mary Ann Machi

Umbellularia californica var. californica Bay laurel, California bay, California laurel, bay tree

native
Tree

Umbellularia californica var. californica

2023 Mary Ann Machi

2016 Steve Matson

2023 Mary Ann Machi

Undaria pinnatifida Wakame

• invasive non-native
seaweed

ALARIACEAE

2018 Joe DiTomaso

Panicum maximum Guineagrass

non-native
Perennial grass

Uropappus lindleyi Silver puffs, Uropappus

native
Annual herb

2019 Zack Abbey

2019 Ron Vanderhoff

2016 Ron Vanderhoff

Urospermum picroides Bristly tail seed, Prickly goldenfleece

non-native
Annual, Perennial herb

2019 David Greenberger

2014 Toni Corelli

2019 Toni Corelli

Urtica dioica Stinging nettle

native
Perennial herb

2014 Steve Matson

2006 Steve Matson

2014 Steve Matson

Urtica dioica ssp. gracilis American stinging nettle, California nettle

native
Perennial herb

2020 Lynn Overtree

2007 Toni Corelli

2021 Chuck Kozak

Urtica gracilis American stinging nettle, California nettle

native
Perennial herb

2020 Lynn Overtree

2007 Toni Corelli

2021 Chuck Kozak

Urtica dioica ssp. holosericea Giant creek nettle, Hoary nettle, Mountain nettle

native
Perennial herb

2014 Steve Matson

Urtica urens Annual stinging nettle, Dwarf nettle

non-native
Annual herb

2019 Gary McDonald

2018 Ron Vanderhoff

Utricularia gibba Gibbous bladderwort, Humped bladderwort

native
Perennial herb

2019 Heide Keeble

2009 Barry Rice

Utricularia inflata Swollen bladderwort

non-native
Perennial herb

2006 Barry Rice

Utricularia intermedia Flat leaf bladderwort, Flat leaved bladderwort, Flatleaf bladderwort

• rare native
Annual herb

2018 Mary Merriman

2009 Barry Rice

2004 Barry Rice

Utricularia macrorhiza Common bladderwort

native
Perennial herb

2020 Bob Sweatt

2006 Steve Matson

Utricularia vulgaris Common bladderwort

native
Perennial herb

2020 Bob Sweatt

2006 Steve Matson

Utricularia vulgaris ssp. Macrorhiza Common bladderwort

native
Perennial herb

2020 Bob Sweatt

2006 Steve Matson

Utricularia minor Lesser bladderwort

• rare native
Annual herb

2013 David popp

2021 Lisa Berry

2014 Roy West

Utricularia ochroleuca Yellowishwhite bladderwort

• rare native
Perennial herb

2007 George W. Hartwell

2009 Barry Rice

Utricularia stygia Yellowishwhite bladderwort

• rare native
Perennial herb

2007 George W. Hartwell

2009 Barry Rice

Utricularia subulata Zigzag bladderwort

non-native
Annual, Perennial herb

2006 Barry Rice

Vaccaria hispanica Cow soapwort, Cowherb, Spanish cockle

non-native
Annual herb

2007 Louis-M. Landry

2009 George W. Hartwell

2017 Thayne Tuason

Vaccinium caespitosum Dwarf bilberry, Huckleberry

native
Shrub

2021 Alaine Arslan

2019 Talila Golan

2019 Julie A. Kierstead

Vaccinium cespitosum Dwarf bilberry, Huckleberry

native
Shrub

2021 Alaine Arslan

2019 Talila Golan

2019 Julie A. Kierstead

Vaccinium coccineum Siskiyou Mtns. huckleberry

• rare native
Shrub

2012 Aaron Arthur

2020 Stillwater Sciences

Vaccinium deliciosum Cascade bilberry

native
Shrub (stem succulent)

2019 Dana York

2023 Dana York

Vaccinium macrocarpon Cranberry

non-native
Shrub (stem succulent)

2010 Louis-M. Landry

2014 Joey Malone

2010 Louis-M. Landry

Vaccinium membranaceum Thin leaf huckleberry, Thinleaf huckleberry

native
Shrub

2019 Richard Spjut

2018 Julie Kierstead Nelson

Vaccinium ovatum California huckleberry, Evergreen huckleberry

native
Shrub

2017 Steve Matson

Vaccinium parvifolium California red huckleberry, Red bilberry, red huckleberry

native
Shrub

2017 Ken Hickman

2020 R.A. Chasey

2023 Caitlyn Allchin

Vaccinium scoparium Grouse whortleberry, Little leaf huckleberry

• rare native
Shrub

2011 Steve Matson

Vaccinium shastense ssp. nevadense Sierra Nevada huckleberry

Shrub

2015 Len Lindstrand III

2006 Dean Wm. Taylor

2015 Len Lindstrand III

Vaccinium shastense ssp. shastense Shasta huckleberry

• rare native
Shrub

2016 Steve Matson

Vaccinium uliginosum Blueberry

native
Shrub

2003 Steve Matson

2022 R.A. Chasey

2003 Steve Matson

Vaccinium uliginosum ssp. occidentale Western blueberry

native
Shrub

2022 R.A. Chasey

2003 Steve Matson

Acacia smallii Sweet acacia

non-native
Tree

2016 Ron Vanderhoff

2022 Paul Watts

2016 Ron Vanderhoff

Vachellia farnesiana Sweet acacia

non-native
Tree

2016 Ron Vanderhoff

2022 Paul Watts

2016 Ron Vanderhoff

Vachellia farnesiana var. farnesiana Sweet acacia

non-native
Tree

Vahlodea atropurpurea Mountain hairgrass

• rare native
Perennial grass

2008 Sean B. Smith

Valeriana californica California valerian

native
Perennial herb

2019 Matt Berger

2021 Mike Russler

2021 Jamie Spielmann

Valeriana capitata California valerian

native
Perennial herb

2019 Matt Berger

2021 Mike Russler

2021 Jamie Spielmann

Valeriana capitata ssp. acutiloba California valerian

native
Perennial herb

2019 Matt Berger

2021 Mike Russler

2021 Jamie Spielmann

Valeriana occidentalis Western valerian

• rare native
Perennial herb

2022 Eric Engles

2008 Trent M. Draper

Valeriana officinalis Garden valerian

non-native
Perennial herb

Valeriana pubicarpa Mountain valerian

native
Perennial herb

2011 Steve Matson

Valeriana sitchensis Sitka valerian

native
Perennial herb

2015 BOB CASE

2017 Steve Matson

Valeriana sitchensis ssp. scouleri Scouler's valerian

native
Perennial herb

2023 Dana York

Valeriana sitchensis ssp. sitchensis Sitka valerian

native
Perennial herb

0000 Richard Spjut

2018 Susan McDougall

Valerianella carinata Corn salad, European cornsalad

non-native
Annual, Perennial herb

2009 Phil Pullen

2016 David popp

Valerianella locusta Corn salad, Lamb lettuce, Lewiston cornsalad

non-native
Annual herb

2008 Steve Matson

2018 Steven Perry

Vancouveria chrysantha Golden inside out flower, Golden vancouveria, Siskiyou inside out flower

• rare native
Perennial herb (rhizomatous)

2018 John Game

2020 Kolby Lundgren

2015 John Doyen

Vancouveria hexandra Deciduous vancouvaria, Northern vancouveria, White insideout flower

native
Perennial herb

2016 Steve Matson

Vancouveria planipetala Inside out flower, Redwood insideout flower, Redwood ivy

native
Perennial herb

2021 Cara Wilcox

2023 R.A. Chasey

Venegasia carpesioides Canyon sunflower

native
Perennial herb

2014 Steve Matson

Venidium fastuosum Monarch of the veld, cape daisy

non-native
Annual herb

2008 Louis-M. Landry

Ventenata dubia North africa grass, Ventenata grass

• invasive non-native
Annual grass

2022 Donald Burk

2011 Steve Matson

Veratrum californicum California false hellebore

native
Perennial herb

2021 Steve Conger

2014 Jim Moore

Veratrum californicum var. californicum California corn lily, California false hellebore, Western false hellebore

native
Perennial herb

2006 Steve Matson

2018 Richard Spjut

2021 Mike Russler

Veratrum fimbriatum Fringed cornlily, Fringed false hellebore

• rare native
Perennial herb

2021 Roy West

2019 R.A. Chasey

2021 Roy West

Veratrum insolitum Siskiyou false hellebore

• rare native
Perennial herb

2018 Alexander Randolph-Lowe

2019 Matt Berger

2018 Anna Sereno

Veratrum viride American false hellebore, Green false hellebore, White false hellebore

native
Perennial herb

2018 joaquin hale

2021 Dee Shea Himes

2020 R.A. Chasey

Verbascum blattaria Moth mullein

non-native
Perennial herb

2023 Alaine Arslan

2019 Marisa Persaud

2019 Patrick Furtado

Verbascum bombyciferum Giant silver mullein

non-native
Annual, Biennial herb

2020 Jean Pawek

Verbascum olympicum Olympic mullein

non-native
Biennial, Perennial herb

2001 CDFA

Verbascum thapsus Common mullein, Woolly mullein

• invasive non-native
Perennial herb

2021 R.A. Chasey

2020 Kim Cabrera

2019 Marisa Persaud

Verbascum virgatum Wand mullein

non-native
Perennial herb

2019 Jerry Thornton

2022 Amber Bedgood

2021 Ron Vanderhoff

Verbena bonariensis Purple top vervain, Purpletop vervain

• invasive non-native
Annual, Biennial herb

2014 Judy and Barry Breckling

2003 Gerald Carr

Verbena bracteata Bigbract verbena, Bracted verbena

native
Annual, Perennial herb

2021 Donald Burk

2019 Ron Vanderhoff

2018 Ron Vanderhoff

Verbena californica California vervain, Red hills vervain

• rare native
Perennial herb

2019 David Greenberger

2017 David Greenberger

2019 David Greenberger

Glandularia gooddingii Southwestern mock vervain

native
Perennial herb

2008 Steve Matson

2016 James Gonsman

2008 Steve Matson

Verbena gooddingii Southwestern mock vervain

native
Perennial herb

2008 Steve Matson

2016 James Gonsman

2008 Steve Matson

Verbena hastata Blue vervain, Swamp verbena

native
Perennial herb

2021 Amber Bedgood

2020 Sara Sweet

Verbena lasiostachys Common verbena, Vervain, Western verbena

native
Perennial herb

2010 Steve Matson

Verbena lasiostachys var. lasiostachys Vervain, Western vervain

native
Perennial herb

2010 Steve Matson

Verbena lasiostachys var. scabrida Robust vervain

native
Perennial herb

2021 R.A. Chasey

2023 Ron Vanderhoff

2020 Ron Vanderhoff

Verbena litoralis Seashore vervain

• invasive non-native
Biennial, Perennial herb

2011 Barry Brekcking

2018 Thomas Reyes

2021 David popp

Verbena menthifolia Mint leafed vervain, Mint vervain

native
Annual, Perennial herb

2020 Alisa Flint

2010 TRNERR P. Roullard

Verbena officinalis Herb of the cross

non-native
Perennial herb

2013 Ron Vanderhoff

2017 Ron Vanderhoff

Verbena pulchella South american mock vervain

non-native
Perennial herb

2019 Ron Vanderhoff

Verbena urticifolia White vervain

non-native
Perennial herb

Verbesina dissita Bigleaf crownbeard

• rare native
Perennial herb

2019 Ron Vanderhoff

2020 Matthew Major

2020 Ron Vanderhoff

Verbesina encelioides Golden crownbeard

non-native
Annual herb

2018 Ron Vanderhoff

2020 Ron Vanderhoff

2018 Ron Vanderhoff

Verbesina encelioides ssp. exauriculata Crownbeard, Golden crownbeard, Golden viguiera

non-native
Annual herb

2021 Keir Morse

2014 Michael Long

Veronica americana American brooklime, American speedwell, Brooklime

native
Perennial herb

2016 Steve Matson

Veronica anagallis-aquatica Water speedwell

non-native
Perennial herb

2015 Steve Matson

2022 Bob Sweatt

Veronica arvensis Corn speedwell, Speedwell

non-native
Annual herb

2006 Steve Matson

2020 mike andrews

Veronica beccabunga European speedwell

non-native
Perennial herb

2007 Dr. Amadej Trnkoczy

2011 Louis-M. Landry

Veronica catenata Chain speedwell

non-native
Perennial herb

2021 R.A. Chasey

2015 Barry Breckling

Veronica chamaedrys Germander speedwell

non-native
Perennial herb

2011 Louis-M. Landry

Veronica copelandii Copeland's speedwell

• rare native
Perennial herb

2014 Steve Matson

2019 Julie Kierstead Nelson

2019 Dana York

Veronica cusickii Cusick's speedwell

• rare native
Perennial herb

2020 Bob Sweatt

Veronica filiformis Thread stalk speedwell, Threadstalk speedwell

non-native
Perennial herb

2002 Dean Wm. Taylor

2005 Doreen L. Smith

Veronica hederifolia Ivy leaved speedwell, Ivyleaf speedwell

non-native
Annual herb

2006 Luigi Rignanese

Veronica officinalis Common gypsyweed

non-native
Perennial herb

2008 Louis-M. Landry

2009 Barry Breckling

Veronica officinalis var. officinalis Common gypsyweed

non-native
Perennial herb

2008 Louis-M. Landry

2009 Barry Breckling

Veronica peregrina Neckweed

native
Annual herb

2020 Steve Matson

2020 Bob Sweatt

Veronica peregrina ssp. xalapensis Hairy purslane speedwell, Neckweed, Purslane speedwell

native
Annual herb

2020 Steve Matson

2020 Ron Vanderhoff

2020 Steve Matson

Veronica persica Bird's eye speedwell, Birdeye speedwell

non-native
Annual herb

2019 Patrick Furtado

2022 Bob Sweatt

2022 Ron Vanderhoff

Veronica scutellata Marsh speedwell, Skullcap speedwell

native
Perennial herb

2022 Bob Sweatt

Veronica serpyllifolia Thymeleaf speedwell

native
Perennial herb

2022 Steve Matson

2020 Bob Sweatt

2018 Ron Vanderhoff

Veronica serpyllifolia ssp. serpyllifolia Thymeleaf speedwell

native
Perennial herb

Veronica serpyllifolia ssp. serpyllifolia

2022 Steve Matson

2020 Bob Sweatt

2018 Ron Vanderhoff

Veronica serpyllifolia ssp. humifusa Bright blue speedwell, Brightblue speedwell, Sprawling speedwell

native
Perennial herb

2003 Steve Matson

2020 Susan McDougall

Veronica spicata Spiked speedwell

non-native
Perennial herb

Veronica triphyllos Finger speedwell

non-native
Annual herb

2005 Penn Martin II

Veronica alpina American alpine speedwell, American alpine speedwell

native
Perennial herb

2022 Steve Matson

2003 Steve Matson

2022 Steve Matson

Veronica wormskjoldii American alpine speedwell, American alpine speedwell

native
Perennial herb

2022 Steve Matson

2003 Steve Matson

2022 Steve Matson

Veronica wormskjoldii var. wormskjoldii American alpine speedwell, American alpine speedwell

native
Perennial herb

2022 Steve Matson

2003 Steve Matson

2022 Steve Matson

Viburnum ellipticum Common viburnum, Viburnum

• rare native
Shrub

2021 R.A. Chasey

2020 Julie A. Kierstead

Viburnum edule European cranberrybush , Guelder-rose

non-native
Shrub

2006 Dr. Amadej Trnkoczy

Viburnum opulus European cranberrybush , Guelder-rose

non-native
Shrub

2006 Dr. Amadej Trnkoczy

Viburnum opulus var. americanum European cranberrybush , Guelder-rose

non-native
Shrub

2006 Dr. Amadej Trnkoczy

Viburnum suspensum Viburnum

non-native
Shrub

Viburnum tinus Laurustinus

non-native
Shrub

2023 Donald Burk

2022 Michael Sturtevant

Viburnum tinus ssp. rigidum Laurustinus

non-native
Shrub

2023 Donald Burk

2022 Michael Sturtevant

Vicia americana American vetch

native
Perennial herb, Vine

2021 Charles Smith

2021 Ron Vanderhoff

2022 Mary Sue Ittner

Vicia americana ssp. americana American vetch

native
Perennial herb, Vine

2008 Steve Matson

Vicia atropurpurea Purple vetch, Reddish tufted vetch, Vetch

non-native
Annual herb, Vine

2019 Diane Etchison

2018 MCOSD EDRR

2020 Ron Vanderhoff

Vicia benghalensis Purple vetch, Reddish tufted vetch, Vetch

non-native
Annual herb, Vine

2019 Diane Etchison

2018 MCOSD EDRR

2020 Ron Vanderhoff

Vicia bithynica Bithynian vetch

non-native
Annual herb

2006 Luigi Rignanese

Vicia cracca Bird vetch

non-native
Perennial herb, Vine

2021 stephen rosenthal

2007 Louis-M. Landry

Vicia disperma European vetch

non-native
Annual herb

2020 Ryan Carle

Vicia faba Broad bean, horse bean, Fava bean, horse bean, Horsebean

non-native
Annual herb, Vine

2021 Avis Boutell

2020 Michelle Karle

Vicia gigantea Giant vetch

native
Perennial herb

2021 Dana York

2019 Cynthia Powell

2013 James Gonsman

Vicia hassei Hasse's vetch

native
Vine

2023 R.A. Chasey

2016 Phil Johnson

2023 R.A. Chasey

Vicia hirsuta Hairy vetch, Tiny vetch, Vetch

non-native
Annual herb, Vine

2021 R.A. Chasey

Vicia lathyroides Pea vetch, Spring vetch

non-native
Annual herb, Vine

2009 Zoya Akulova

Vicia ludoviciana ssp. ludoviciana Louisiana vetch

native
Annual herb

2017 Diane Etchison

2015 Jean Pawek

2009 Adonis (Don) Tate

Vicia lutea Smooth yellow vetch

non-native
Annual herb, Vine

2019 Thomas Reyes

2007 Luigi Rignanese

2022 Emily R. Allen

Vicia pannonica ssp. striata Hungarian vetch

non-native
Annual herb, Vine

2014 Luigi Rignanese (ssp. striata)

Vicia sativa Spring vetch

non-native
Annual herb, Vine

2022 David Wolfson

2019 Cynthia Powell

2023 Ron Vanderhoff

Vicia sativa ssp. nigra Common vetch, Garden vetch, Smaller common vetch

non-native
Annual herb, Vine

2020 Ken Lunders

2020 Ron Vanderhoff

Vicia sativa ssp. segetalis Common vetch, Garden vetch, Smaller common vetch

non-native
Annual herb, Vine

2020 Ken Lunders

2020 Ron Vanderhoff

Vicia sativa ssp. sativa Garden vetch, Pubescent common vetch, Spring vetch

non-native
Annual herb, Vine

2007 Toni Corelli

2020 Ron Vanderhoff

Vicia tetrasperma Four seeded vetch, Lentil vetch

non-native
Annual herb

2009 Avis Boutell

2019 Jackie Gamble

Vicia villosa Hairy vetch, Hairy Vetch, Winter Vetch

• invasive non-native
Annual herb, Vine

2019 Diane Etchison

2019 Gary McDonald

Vicia villosa ssp. varia Smooth vetch, Thick fruited vetch, Winter vetch

non-native
Annual herb, Vine

2006 Steve Matson

2017 Gary McDonald

Vicia villosa ssp. villosa Hairy vetch, Winter vetch, Wooly vetch

• invasive non-native
Annual herb, Vine

2019 Ron Vanderhoff

2022 Ron Vanderhoff

2019 Ron Vanderhoff

Viguiera purisimae La purisima viguiera

• rare native
Shrub

2018 Ron Vanderhoff

Vinca major Bigleaf periwinkle, Greater periwinkle, Vinca

• invasive non-native
Perennial herb

2020 Julia Markey

2022 Ron Vanderhoff

2021 Ron Vanderhoff

Vinca minor Common periwinkle

non-native
Perennial herb

2021 S. C. Haynes

2019 Danielle Carney

Viola adunca Blue violet, Dog violet, Hookedspur violet

native
Perennial herb

2015 Steve Matson

2004 Steve Matson

2015 Steve Matson

Viola adunca ssp. adunca Blue violet, Western dog violet

native
Perennial herb

2015 Steve Matson

Viola adunca var. bellidifolia Blue violet, Western dog violet

native
Perennial herb

2015 Steve Matson

Viola arvensis European field pansy

non-native
Annual herb

2022 Bob Sweatt

2016 Judy and Barry Breckling

2022 Bob Sweatt

Viola bakeri Baker's violet

native
Perennial herb

2020 Bob Sweatt

2021 Mike Russler

2020 Bob Sweatt

Viola beckwithii Beckwith's violet, Great basin violet

native
Perennial herb

2020 Bob Sweatt

2019 Steve Ashcraft

2018 Timothy Boomer

Viola beckwithii ssp. beckwithii Beckwith's violet, Great basin violet

native
Perennial herb

2020 Bob Sweatt

2019 Steve Ashcraft

2018 Timothy Boomer

Viola cuneata Wedge leaf violet, Wedgeleaf violet

native
Perennial herb

2021 Steve Matson

2017 Steve Matson

2006 Steve Matson

Viola douglasii Douglas' golden violet, Douglas' violet

native
Perennial herb

2006 Steve Matson

Viola glabella Pioneer violet, Stream violet, Stream Violet, Smooth Yellow Violet

native
Perennial herb

2006 Steve Matson

2021 Steve Matson

Viola hallii Hall's violet, Oregon violet

native
Perennial herb

2021 Steve Matson

2017 Steve Matson

2021 Steve Matson

Viola howellii Howell's violet

• rare native
Perennial herb

2010 Ray Collett

2012 Aaron Arthur

Viola langsdorffii Aleutian violet

• rare native
Perennial herb

2018 John Game

2022 Dana York

Viola lobata Moose horn violet, Pine violet, Yellow violet

native
Perennial herb

2008 Steve Matson

2009 Gary A. Monroe

2021 Julie A. Kierstead

Viola lobata ssp. integrifolia Delta leafed forest violet, Pine violet, Yellow violet

native
Perennial herb

2008 Steve Matson

Viola lobata ssp. lobata Moose horn violet, Pine violet

native
Perennial herb

2017 Steve Matson

Viola macloskeyi Macloskey's violet, Small white violet

native
Perennial herb

2019 David Greenberger

2020 Steve Conger

2021 Alaine Arslan

Viola macloskeyi ssp. pallens Macloskey's violet, Small white violet

native
Perennial herb

2019 David Greenberger

2020 Steve Conger

2021 Alaine Arslan

Viola pallens Macloskey's violet, Small white violet

native
Perennial herb

2019 David Greenberger

2020 Steve Conger

2021 Alaine Arslan

Viola affinis Leconte violet, Northern bog violet

native
Perennial herb

2010 Sierra Pacific Industries

2015 Sierra Pacific Industries

2015 John Doyen

Viola nephrophylla Leconte violet, Northern bog violet

native
Perennial herb

2010 Sierra Pacific Industries

2015 Sierra Pacific Industries

2015 John Doyen

Viola nuttallii Nuttall's violet

non-native
Perennial herb

Viola ocellata Pinto violet, Twoeyed violet, Western heart's ease

native
Perennial herb

2020 Amy Rapport

2008 Steve Matson

2018 Stacie Wolny

Viola odorata English violet, Sweet violet

non-native
Perennial herb

2022 El Byrne

2019 John Rawlings

2018 Aaron Schusteff

Viola palustris Marsh violet

• rare native
Perennial herb (rhizomatous)

2020 Christopher Collier

2017 Steve Matson

Viola pedunculata California golden violet, Johnny jump up

native
Perennial herb

2014 Steve Matson

Viola pedunculata ssp. pedunculata California golden violet, Johnny jump up

native
Perennial herb

2014 Steve Matson

Viola pinetorum Goosefoot yellow violet, Pine violet

native
Perennial herb

2022 Bob Sweatt

2019 Diane Etchison

2017 Alison Sheehey

Viola pinetorum ssp. grisea Goosefoot yellow violet, Grey leaved violet

• rare native
Perennial herb

2019 Matt Berger

2022 Eric Koberle

Viola pinetorum ssp. pinetorum Goosefoot yellow violet, Pine violet

native
Perennial herb

2017 Diane Etchison

2015 Scott Cox

2016 David popp

Viola praemorsa Astoria violet, Canary violet

native
Perennial herb

2020 Bob Sweatt

2019 Bob Sweatt

2020 Julie A. Kierstead

Viola praemorsa ssp. linguifolia Astoria violet, Upland yellow violet

native
Perennial herb

2004 Steve Matson

Viola praemorsa ssp. praemorsa Astoria violet, Canary violet

native
Perennial herb

2020 Julie A. Kierstead

Viola primulifolia Bog White Violet

native
Perennial herb (rhizomatous)

2017 Steve Matson

2018 John Game

Viola primulifolia ssp. occidentalis Western bog violet

• rare native
Perennial herb (rhizomatous)

2018 John Game

2017 Steve Matson

2023 Dana York

Viola purpurea Goosefoot violet, Mountain violet

native
Perennial herb

2008 Steve Matson

2003 Steve Matson

Viola purpurea ssp. aurea Golden violet

• rare native
Perennial herb

2008 Steve Matson

2012 Steve Matson

2008 Steve Matson

Viola purpurea ssp. integrifolia Goosefoot violet, Smooth leaved violet

native
Perennial herb

2003 Steve Matson

Viola purpurea ssp. mohavensis Mojave goosefoot violet

native
Perennial herb

2021 Bryant Baker

2023 Arlee Montalvo

2019 Manzanita Dictionary

Viola purpurea ssp. purpurea Goosefoot violet, Mountain Violet

native
Perennial herb

2021 Jamie Spielmann

2021 Dana York

2017 Robert Barnard

Viola purpurea ssp. quercetorum Goosefoot violet, Goosefoot yellow violet

native
Perennial herb

2016 Steve Matson

Viola purpurea ssp. venosa Desert violet, Goosefoot violet, Goosefoot yellow violet

native
Perennial herb

2023 Mike Russler

Viola sempervirens Evergreen violet, Redwood violet

native
Perennial herb

2021 Steve Matson

Viola sheltonii Shelton's violet

native
Perennial herb

2006 Steve Matson

2019 Ron Vanderhoff

2021 Mike Russler

Viola papilionacea Common blue violet

native
Perennial herb

2007 Dr. Amadej Trnkoczy

2010 Louis-M. Landry

2003 Joseph Dougherty/ecology.org

Viola sororia Common blue violet

native
Perennial herb

2007 Dr. Amadej Trnkoczy

2010 Louis-M. Landry

2003 Joseph Dougherty/ecology.org

Viola sororia var. priceana Common blue violet

native
Perennial herb

2007 Dr. Amadej Trnkoczy

2010 Louis-M. Landry

2003 Joseph Dougherty/ecology.org

Viola tomentosa Feltleaf violet, Woolly violet

• rare native
Perennial herb

2019 Matt Berger

2006 Steve Matson

2019 Matt Berger

Viola tricolor Johnny jumpup, Wild pansy

non-native
Annual, Perennial herb

2007 Louis-M. Landry

2005 Dr. Amadej Trnkoczy

2010 Zoya Akulova

Viola tricolor ssp. tricolor Johnny jumpup, Wild pansy

non-native
Annual, Perennial herb

2007 Louis-M. Landry

2005 Dr. Amadej Trnkoczy

2010 Zoya Akulova

Viscum album European mistletoe

• invasive non-native
Shrub (parasitic)

2019 Susan McDougall

2007 Fran�ois Meignant

Vitex agnus-castus Lilac chastetree

non-native
Tree, Shrub

2023 Olesya Konovalova

2022 Andy Ford

2023 Olesya Konovalova

Vitis arizonica Canyon grape

native
Vine, Shrub

2007 Jason E. Willand

2013 Jean Pawek

Vitis californica California grape, California wild grape

native
Vine, Shrub

2015 Bill Bogdanoff

2013 Zoya Akulova

2009 BOB CASE

Vitis girdiana Desert wild grape, Southern california grape

native
Vine, Shrub

2019 Ron Vanderhoff

2020 Ron Vanderhoff

2021 Aaron Echols

Vitis labrusca Fox grape

non-native
Vine, Shrub

Vitis vinifera Cultivated grape, Wine grape

non-native
Vine, Shrub

2020 Jennifer Mo

2014 Eric Wrubel

2005 Luigi Rignanese

Vitis vinifera var. 5 Cultivated grape, Wine grape

non-native
Vine, Shrub

2020 Jennifer Mo

2014 Eric Wrubel

2005 Luigi Rignanese

Volutaria muricata Morocco knapweed

non-native
Annual herb

2016 Richard Spellenberg

Volutaria tubuliflora Egyptian knapweed

• invasive non-native
Annual herb

2017 Ron Vanderhoff

2020 Ron Vanderhoff

2020 Lynn Sweet

Wahlenbergia marginata Southern rockbell

non-native
Perennial herb

2018 Peter Warner

2021 Diana Wahl

Washingtonia filifera California fan palm, Fan palm

native
Tree

2021 Ron Vanderhoff

2020 Brad Hardison

2013 Susan McDougall

Washingtonia robusta Mexican fan palm

• invasive non-native
Tree

2018 James Bailey

2021 Ron Vanderhoff

2015 Zoya Akulova

Watsonia meriana Bulbil bugle lily

• invasive non-native
Perennial herb

2019 Michael Perlmutter

2019 Cynthia Powell

Weigela florida Oldfashioned weigela

non-native
Shrub

Whipplea modesta Modesty, Whipplea, Whipplevine

native
Vine, Shrub

2004 Steve Matson

2018 Paul Preston and Tim Lukaszewski

2014 James Gonsman

Wigandia caracasana Caracus wigandia

non-native
Shrub

2018 Ron Vanderhoff

2019 Ron Vanderhoff

Wigandia urens Caracus wigandia

non-native
Shrub

2018 Ron Vanderhoff

2019 Ron Vanderhoff

Wislizenia refracta Jack ass clover, Jackass clover, Spectacle fruit

native
Annual herb

$Wislizenia refracta$

2019 Richard Spjut

$Wislizenia refracta$

2005 James M. Andre

$Wislizenia refracta$

2016 Neal Kramer

Wislizenia refracta ssp. californica California jackass clover, Spectacle fruit

native
Annual herb

$Wislizenia refracta ssp. californica$

2011 Neal Kramer

$Wislizenia refracta ssp. californica$

2016 Neal Kramer

$Wislizenia refracta ssp. californica$

2014 Neal Kramer

Wislizenia refracta ssp. palmeri Palmer's jackass clover, Palmer's wislizenia

• rare native
Annual herb

$Wislizenia refracta ssp. palmeri$

2019 Richard Spjut

$Wislizenia refracta ssp. palmeri$

2019 Richard Spjut

$Wislizenia refracta ssp. palmeri$

2009 Xeric Specialties

Wislizenia refracta ssp. refracta Jackass clover, Spectacle fruit

• rare native
Annual herb

$Wislizenia refracta ssp. refracta$

2005 James M. Andre

$Wislizenia refracta ssp. refracta$

2005 James M. Andre

$Wislizenia refracta ssp. refracta$

2005 James M. Andre

Wisteria floribunda Japanese wisteria

non-native
Perennial herb

Wisteria sinensis Chinese wisteria

non-native
Perennial herb

Wolffia borealis Northern water meal, Northern watermeal

native
Perennial herb

2019 David popp

2021 BLM Redding Field Office

2013 Scot Loring

Wolffia brasiliensis Brazilian watermeal, South American water meal

• rare native
Perennial herb

2022 Donald Burk

2022 David popp

Wolffia columbiana Columbia water meal, Columbian watermeal

native
Perennial herb

2022 Keir Morse

2018 Ron Vanderhoff

2019 Ron Vanderhoff

Woodsia oregana Cliff fern, Oregon cliff fern, Oregon woodsia

native
Fern

WOODSIACEAE

2019 Matt Berger

2000 John Game

2006 Steve Matson

Woodsia plummerae Plummer's cliff fern, Plummer's woodsia

• rare native
Fern (rhizomatous)

WOODSIACEAE

University and Jepson Herbaria

Woodsia scopulina Cliff fern, Mountain cliff fern, Rocky mountain woodsia

native
Fern

WOODSIACEAE

2022 R.A. Chasey

Woodwardia fimbriata Chain fern, Giant chain fern, Giant chainfern

native
Fern

BLECHNACEAE

2019 Julie Kierstead Nelson

2020 R.A. Chasey

2020 Julie A. Kierstead

Wyethia angustifolia California compassplant, Narrow leaf mule ears, Narrow leaved mule ears

native
Perennial herb

2023 Suzanne L. Weakley

2021 R.A. Chasey

2009 BOB CASE

Agnorhiza bolanderi Bolander wyethia, Bolander's mule ears, Bolander's wyethia

native
Perennial herb

2021 Scott Yarger

2020 Matt Berger

Wyethia bolanderi Bolander wyethia, Bolander's mule ears, Bolander's wyethia

native
Perennial herb

2021 Scott Yarger

2020 Matt Berger

Wyethia elata Hall's mule ears, Hall's wyethia

• rare native
Perennial herb

2022 Mike Russler

Wyethia glabra Coast range mule ears, Shining mule ears, Smooth mule ears

native
Perennial herb

2020 Julie A. Kierstead

2022 R.A. Chasey

2019 Colleen Herr

Wyethia helenioides Gray mule ears, Whitehead mule ears, Whitehead wyethia

native
Perennial herb

2017 Marie Reil

2018 Bill Schmidt

2022 Mike Russler

Wyethia invenusta Coville's mule ears, Coville's wyethia

native
Perennial herb

2015 Mary Merriman

2022 Mike Russler

Wyethia longicaulis Humboldt county wyethia, Humboldt mule ears

• rare native
Perennial herb

2019 Kipp Pow

2018 Claire Brown

Wyethia mollis Mountain mule ears, Mule ears, Woolly mule ears

native
Perennial herb

2016 James Gonsman

2023 Mike Russler

2023 Julie A. Kierstead

Wyethia ovata Southern mule ears, Southern wyethia

native
Perennial herb

2020 Ron Vanderhoff

2016 Ron Vanderhoff

2022 Ron Vanderhoff

Wyethia reticulata El dorado county mule ears, El dorado mule ears, Eldorado wyethia

• rare native
Perennial herb

2017 Joey Santore

2014 Steven Perry

Xanthisma gracile Annual bristleweed

• rare native
Annual herb

2011 Keir Morse

Xanthisma junceum Rush like bristleweed

• rare native
Perennial herb

2004 Vince Scheidt

2021 W. Juergen Schrenk

2007 Vince Scheidt

Machaeranthera pinnatifida ssp. goodingii

native
Perennial herb

Machaeranthera pinnatifida ssp. goodingii

2010 Steve Matson

Xanthisma spinulosum

native
Perennial herb

2010 Steve Matson

Xanthisma spinulosum var. chihuahuanum

native
Perennial herb

2010 Steve Matson

Xanthisma spinulosum var. glaberrima

native
Perennial herb

2010 Steve Matson

Xanthisma spinulosum var. spinulosum

native
Perennial herb

2010 Steve Matson

Xanthisma spinulosum var. gooddingii Goodding's aster

native
Perennial herb

2010 Steve Matson

Xanthium strumarium var. glabratum Common cocklebur

native
Annual herb

2023 Mary Merriman

2023 R.A. Chasey

2023 Suzanne L. Weakley

Xanthium spinosum Spiny clotbur, Spiny cockleburr

non-native
Annual herb

2017 B.J. Dion

2021 Lynn Overtree

2017 B.J. Dion

Xanthium strumarium Rough cockleburr

native
Annual herb

2011 Steve Matson

Xerophyllum tenax Common beargrass

native
Perennial herb

2018 Eliezer Margolis

2022 Adam N Canter

2015 David popp

Xylococcus bicolor Mission manzanita

native
Shrub

2019 Diane Etchison

2012 Ron Vanderhoff

2017 B.J. Dion

Xylorhiza cognata Mecca aster, Mecca woodyaster

• rare native
Perennial herb

2019 Michelle Tollett

2023 Eric Koberle

2020 Matt Berger

Xylorhiza orcuttii Orcutt's aster, Orcutt's woody aster

• rare native
Perennial herb

2019 Dee Shea Himes

2023 Rachel Whitt

2017 Fred Melgert / Carla Hoegen

Xylorhiza tortifolia Mojave woodyaster

native
Perennial herb

2011 Steve Matson

2022 Steve Matson

Xylorhiza tortifolia var. tortifolia Desert aster, Mojave aster, Mojave woodyaster

native
Perennial herb

2008 Steve Matson

2011 Steve Matson

2015 Steve Matson

Yabea microcarpa California hedge parsley, False carrot

native
Annual herb

2021 Helen Hancock

2022 R.A. Chasey

2012 Toni Corelli

Youngia japonica Oriental false hawksbeard

non-native
Annual herb

2017 James Bailey

2012 Zoya Akulova

Yucca baccata Banana yucca, Spanish bayonet

native
Shrub

Geoff Burleigh

2004 James M. Andre

Geoff Burleigh

Yucca baccata var. baccata Banana yucca, blue yucca

native
Shrub

2020 Matt Berger

2004 James M. Andre

2016 John Doyen

Yucca brevifolia Joshua tree

native
Tree

2018 Matt Berger

2019 Diane Etchison

2023 Thomas Egan

Yucca brevifolia ssp. jaegeriana Joshua tree

native
Tree

2018 Matt Berger

2019 Diane Etchison

2023 Thomas Egan

Yucca brevifolia var. brevifolia Joshua tree

native
Tree

2018 Matt Berger

2019 Diane Etchison

2023 Thomas Egan

Yucca gloriosa Moundlily yucca

non-native
Shrub

2021 Ron Vanderhoff

2020 Ron Vanderhoff

2019 Ron Vanderhoff

Yucca jaegeriana Eastern joshua tree

native
Shrub

2021 W. Juergen Schrenk

2021 W. Juergen Schrenk

Yucca schidigera Mohave yucca, Mojave yucca

native
Tree

2017 Margarita Orlova

2023 David Strauch

2020 Susan McDougall

Zannichellia palustris Horned pondweed

native
Perennial herb

ZANNICHELLIACEAE

2021 Ron Vanderhoff

Zantedeschia aethiopica Calla lily, Callalily, Common calla

• invasive non-native
Perennial herb

2020 Jennifer Mo

2020 Ron Vanderhoff

2021 MCOSD EDRR

Zea mays Corn

non-native
Annual grass

2016 James Bailey

Gerald and Buff Corsi 2011 California Academy of Sciences

2006 Joseph Dougherty, M.D./ecology.org

Zea mays ssp. mays Corn

non-native
Annual grass

2016 James Bailey

Gerald and Buff Corsi 2011 California Academy of Sciences

2006 Joseph Dougherty, M.D./ecology.org

Zelkova serrata Japanese zelkova

non-native
Tree

Zeltnera davyi Davy's centaury

native
Annual herb

2018 Mary Conway

2022 Irene Rosen

2023 R.A. Chasey

Zeltnera exaltata Cancha lagua

native
Annual herb

2016 Steve Matson

2023 Ron Vanderhoff

Zeltnera muehlenbergii Muehlenberg's centaury

native
Annual herb

2019 Patrick Furtado

2015 James Gonsman

2011 Michael Perlmutter

Zeltnera namophila Spring-loving Centaury

native
Annual herb

2019 Matt Berger

Zeltnera trichantha Alkali centaury

native
Annual herb

2021 Charles Russell

2019 Paul Aigner

Centaurium venustum California Centaury, Charming Centaury

native
Annual herb

2019 Diane Etchison

2021 Bonnie Nickel

2019 Diane Etchison

Zeltnera venusta California Centaury, Charming Centaury

native
Annual herb

2019 Diane Etchison

2021 Bonnie Nickel

2019 Diane Etchison

Zinnia elegans Elegant zinnia

non-native
Annual herb

2005 Luigi Rignanese

2006 Louis-M. Landry

2005 Luigi Rignanese

Zizania palustris Northern wildrice

non-native
Annual, Perennial grass

2016 Robert L. Carr

Ziziphus obtusifolia Lotebush

native
Shrub

2012 Keir Morse

Ziziphus obtusifolia var. canescens Gray crucillo, Graythorn, Grey leaved abrojo

native
Shrub

2012 Keir Morse

Condalia parryi Parry's jujube

native
Shrub

2019 Matt Berger

2016 Stephen Hodges

Ziziphus parryi Parry's jujube

native
Shrub

2019 Matt Berger

2016 Stephen Hodges

Ziziphus parryi var. parryi California crucillo, Lotebush, Parry abrojo

native
Shrub

2019 Richard Spjut

2014 Keir Morse

Ziziphus jujuba Common jujube

non-native
Tree, Shrub

2005 Luigi Rignanese

2005 Luigi Rignanese

Ziziphus zizyphus Common jujube

non-native
Tree, Shrub

2005 Luigi Rignanese

2005 Luigi Rignanese

Zostera marina Eel grass, Eelgrass, Seawrack

native
Perennial herb

ZOSTERACEAE

2021 Michelle Karle

2021 Ron Vanderhoff

2013 Ron Vanderhoff

Zygophyllum fabago Syrian beancaper

• invasive non-native
Perennial herb