Distribution: Occurring east of the Cascades crest, where known only from Asotin County in Washington; southeastern Washington to northeastern Oregon and adjacent west-central Idaho.
Habitat: Grassy hills and rocky meadows, often on basalt.
Flowers: May-June
Origin: Native
Growth Duration: Perennial
Conservation Status: Not of concern
Pollination: Bumblebees, bees, butterflies
[none provided]
PNW Herbaria: Specimen records of Astragalus arthuri in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Astragalus arthuri checklist entry
OregonFlora: Astragalus arthuri information
E-Flora BC: Astragalus arthuri atlas page
CalPhotos: Astragalus arthuri photos