Tsuga canadensis. Pinus canadensis, Abies canadensis   Hemlock spruce, Pinus bark   Family: Pinaceae      
TASTE: Astringent ODOR: Faintly resembling turpentine
PART USED: Bark
ACTIONS
1. Astringent.[1,2] Tonic.[2]
2. Diaphoretic.[1,2]
3. Diuretic.[1,2]
4. Antimicrobial.[1] Antiseptic.[2]
INDICATIONS
1. Diarrhea-[2] administered by mouth or as enema.[1] Mucous colitis.[1] Colitis.[2]
2. Cystitis.[1,2]
3. Leukorrhea.[1,2] Prolapse of uterus- as douche.[1]
4. Pharyngitis.[1] Stomatitis[1]. Gingivitis, laryngitis- gargle or mouthwash.[1,2]
SPECIFIC INDICATIONS: Diarrhea.[1] Leukorrhea.[1]
COMBINATIONS
PREPARATIONS: 3X/day
Dried bark  1-2 g,[1] or as infusion or decoction.[1]
Topically  1:10 decoction.[1]
Liquid extract (BPC1934)  1-2 ml.[1] 1-5 ml.[2]

ORIGIN: North America
DESCRIPTION: The bark occurs in pieces of very variable size and up to 2 cm thick. Outer surface of older pieces with rhytidome, deeply fissured; younger bark with exfoliating cork, reddish colored. Inner surface light yellowish brown, longitudinally striated. Fracture short, fibrous.
References
Inner Path can not take any responsibility for any adverse effects from the use of plants. Always seek advice from a professional before using a plant medicinally.
Constituents
Research

Volatile emissions of eastern hemlock, Tsuga canadensis, and the influence of hemlock woolly adelgid
Corey D Broeckling, Scott M Salom
Abstract
The volatile emissions of eastern hemlock, Tsuga canadensis Carriere, were identified and quantified using standard and chiral gas chromatography and mass spectrometry. All of the identified compounds were monoterpenes, and included alpha-pinene, myrcene, tricyclene, camphene, alpha-phellandrene, beta-pinene, limonene, beta-phellandrene, terpinolene, and bornyl acetate. alpha-Pinene, myrcene, and camphene comprised greater than 75% by mass of the total release. Infestation by the exotic insect, hemlock woolly adelgid (HWA, Adelges tsugae Annand), resulted in an increased release rate of monoterpenes from branch tips. Release rate was negatively correlated to the amount of the branch tip sample that was new growth, suggesting that release rate is greater from previous-year foliage. Additionally the percent composition of the volatile profile is slightly altered by infestation, with alpha-pinene comprising 57% of volatiles from infested foliage and 66% from uninfested foliage.
Phytochemistry 2003 Jan;62(2):175-80. doi: 10.1016/s0031-9422(02)00518-6. PMID: 12482453 DOI: 10.1016/s0031-9422(02)00518-6 pubmed.ncbi.nlm.nih.gov