threadstalk milkvetch
- kingdom: Plantae
- phylum: Tracheophyta
- class: Magnoliopsida
- order: Fabales
- family: Fabaceae
- genus: Astragalus
- species: Astragalus speirocarpus
Ellensburg- Sunnyside
- Toppenish
- Union Gap
- Yakima
Washington
United States