Distribution: Known only from Okanogan County in Washington; Alaska to Montana and east-central Idaho, Wyoming, Utah, and Colorado, east to northeastern North America.
Habitat: Montane forests and meadows.
Flowers: May-June
Origin: Native
Conservation Status: Review Group 1 in Washington (WANHP)
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PNW Herbaria: Specimen records of Astragalus eucosmus in the Consortium of Pacific Northwest Herbaria database.
WA Flora Checklist: Astragalus eucosmus checklist entry.
E-Flora BC: Astragalus eucosmus atlas page.
CalPhotos: Astragalus eucosmus photos.
USDA Plants: Astragalus eucosmus information.