Taxon  Report   251    
Alnus incana  (L.) Moench  ssp. tenuifolia  (Nutt.) Breitung
Creek alder,  Mountain alder
Alnus incana ssp. tenuifolia
© 2008 Steve Matson
Photos from
CalPhotos / Calflora
Alnus incana ssp. tenuifolia
© 2014 Zoya Akulova
Alnus incana ssp. tenuifolia
© 2014 Zoya Akulova
Alnus incana ssp. tenuifolia, a dicot, is a tree or shrub 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
Alnus incana ssp. tenuifolia
© 2014 Zoya Akulova
Genus: Alnus
Parent: Alnus incana
Communities: Yellow Pine Forest, Red Fir Forest, wetland-riparian


Wetlands: Occurs usually in wetlands, occasionally in non wetlands

Name Status:
Accepted by JEF + PLANTS

Alternate Names:
PLANTS: Alnus ×purpusii
PLANTS: Alnus incana var. occidentalis
PLANTS: Alnus incana var. virescens
. . .
More information about  Alnus incana ssp. tenuifolia
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]. 2018. Berkeley, California: The Calflora Database [a non-profit organization]. Available:   (Accessed: Dec 17, 2018).