Taxon  Report   253    
Alnus rubra  Bong.
Oregon alder,  Red alder
Alnus rubra
© 2007 Neal Kramer
Photos from
CalPhotos / Calflora
Alnus rubra
© 2012 Zoya Akulova
Alnus rubra
© 2011 Zoya Akulova
Alnus rubra, 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 rubra
© 2014 Zoya Akulova
Genus: Alnus
Communities: Mixed Evergreen Forest, Redwood Forest, Closed-cone Pine Forest, wetland-riparian


Arid West: Occurs usually in wetlands, occasionally in non wetlands
Mountains, Valleys and Coast: Equally likely to occur in wetlands and non wetlands

Name Status:
Accepted by JEF + PLANTS

Alternate Names:
PLANTS: Alnus oregona var. pinnatisecta
PLANTS: Alnus oregona
More information about  Alnus rubra
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 18, 2019).