Distribution: Occurring west of the Cascades crest, where endemic to Olympic Mountains in Washington.
Habitat: Subalpine to alpine talus slopes.
Flowers: June-August
Origin: Native
Conservation Status: Threatened in Washington (WANHP)
Pollination: Bumblebees, bees, butterflies
[none provided]
PNW Herbaria: Specimen records of Astragalus australis var. cottonii in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Astragalus australis var. cottonii checklist entry
OregonFlora: Astragalus australis var. cottonii information
E-Flora BC: Astragalus australis var. cottonii atlas page
CalPhotos: Astragalus australis var. cottonii photos