Distribution: Occurring east of the Cascades crest in Washington; central Washington to eastern Oregon, east to central Idaho.
Habitat: High, open rocky ridges and slopes
Flowers: May August
Origin: Native
Growth Duration: Perennial
Conservation Status: Not of concern
Pollination: Bumblebees, bees, butterflies
[none provided]
PNW Herbaria: Specimen records of Astragalus whitneyi var. sonneanus in the Consortium of Pacific Northwest Herbaria database.
WA Flora Checklist: Astragalus whitneyi var. sonneanus checklist entry.
OregonFlora: Astragalus whitneyi var. sonneanus information.
E-Flora BC: Astragalus whitneyi var. sonneanus atlas page.
CalPhotos: Astragalus whitneyi var. sonneanus photos.
USDA Plants: Astragalus whitneyi var. sonneanus information.