Taxon  Report   8171    
Tsuga mertensiana  (Bong.) Carrière
Black hemlock,  Hemlock spruce, Mountain hemlock, Patton spruce, Sierra hemlock, Western hemlock
Tsuga mertensiana
© 2007 Neal Kramer
Photos from
CalPhotos / Calflora
Tsuga mertensiana
© 2002 Monty Rickard
Tsuga mertensiana
© 2007 Dr. Mark S. Brunell
Tsuga mertensiana, a gymnosperm, is a tree that is native to California, is also found elsewhere in North America and beyond.

Interactive Distribution Map

Observation Hotline
(observation details)

point, line, or polygon

Plant Characteristics
and Associations

Bloom Period
Tsuga mertensiana
© 2018 Jay Chamberlain
Family: PINACEAE  
Genus: Tsuga
Communities: Subalpine Forest

Wetlands: Occurs usually in non wetlands, occasionally in wetlands

Habitat: slopes

Name Status:
Accepted by JEF + PLANTS

Alternate Names:
ICPN: Tsuga crassifolia
More information about  Tsuga mertensiana
Nursery / seed vendor availability from CNPLX
This plant is available commercially.
Landscaping information from Calscape
Photos on   /   Google Images
Jepson eFlora

Records from the Consortium of California Herbaria

ITIS Original Publication citation


Search the International Plants Names Index

Search (Flora of North America)

website references from Google

Suggested Citation
Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals, including the Consortium of California Herbaria. [web application]. 2019. Berkeley, California: The Calflora Database [a non-profit organization]. Available:   (Accessed: Jan 19, 2019).