Page author: David Giblin
Alnus alnobetula
green alder, mountain alder

Distribution: Widely distributed throughout the mountainous areas on both sides of the Cascades crest in Washington; Alaska to northern California, east to Alberta and the northern Rocky Mountain States.

Habitat: Moist areas, low to high elevations

Flowers: April-July

Origin: Native

Growth Duration: Perennial

Conservation Status: Not of concern

Pollination: Wind


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Accepted Name:
Alnus alnobetula (Ehrh.) K. Koch
Publication: Dendrologie 2(1): 625. 1872.

Synonyms & Misapplications:
Alnus crispa (Aiton) Pursh ssp. laciniata Hultén
Alnus crispa (Aiton) Pursh ssp. sinuata (Regel) Hultén
Alnus sinuata (Regel) Rydb.
Alnus sitchensis (Regel) Sarg.
Alnus viridis (Chaix) DC. [WTU]
Alnus viridis (Chaix) DC. var. sinuata Regel
Duschekia sinuata (Regel) Pouzar
Additional Resources:

PNW Herbaria: Specimen records of Alnus alnobetula in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Alnus alnobetula checklist entry.

OregonFlora: Alnus alnobetula information.

E-Flora BC: Alnus alnobetula atlas page.

CalPhotos: Alnus alnobetula photos.

USDA Plants: Alnus alnobetula information.

67 photographs:
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