Alnus
alder
Specimens
Photos
Origin: Native
Conservation Status: Not of concern
Description:
[none provided]
Accepted Name:
Alnus
Publication: Gard. Dict. Abr., ed. 4. 1754.
Publication: Gard. Dict. Abr., ed. 4. 1754.
Synonyms & Misapplications:
(none provided)
Species in Alnus:
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Alnus alnobetula – green alder, mountain alder
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. -
ssp. fruticosa Occurring rarely west of the Cascades crest in Washington; Alaska to California, east to Northwest Territory, south in the Rocky Mountains to Colorado.
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ssp. sinuata – mountain alder Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains.
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Alnus glutinosa – Black alder, European alder Occurring west of the Cascades crest in King County, where escaping from a wetland restoration planting. Great Lakes region east to the Atlantic Coast.
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Alnus incana – mountain alder Occurring chiefly east of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains, northern Great Plains, and eastern North America,
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ssp. tenuifolia – mountain alder Occurring chiefly east of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains.
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Alnus rhombifolia – white alder Occurring chiefly east of the Cascades crest in Washington; Washington to California and Nevada, east to Idaho.
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Alnus rubra – red alder Occurring chiefly west of the Cascades crest in Washington; Alaska to California, disjunct to the east in northern Idaho.
Additional Resources:
PNW Herbaria: Specimen records of Alnus in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Alnus checklist entry
OregonFlora: Alnus information
E-Flora BC: Alnus atlas page
CalPhotos: Alnus photos
235 photographs:
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