Astragalus columbianus Barneby

Washington: Kittitas County: [locality and coordinates withheld; status in Washington: G2G3/S2S3 (Sensitive; WANHP)],
Broad flat flood bar, sand among river cobbles. Plant dried up while in full flower, had a forked taproot, one branch of which had apparently been chewed off. Associated with Artemisia tridentata, Eriogonum sphaerocephalum, E. microthecum, Astragalus purshii, A. succumbens, Erigeron poliospermus, Microseris troximoides, Poa secunda, Oenothera cespitosa. Phenology: Flowers.

Joy Mastrogiuseppe 7129, Apr 8, 1992
With Kali Robsen, Donna Wilcox
WTU, Accession: 361800, Barcode: WTU-V-088674