Family: Legume or Pea (Leguminosae)
Size: Raceme to 4 in.
Other names: Milkvetch, Locoweed, Rattleweed, Loco
Notes on the toxicology of the Astragalus genus are available from the Cornel Poison Plants website.
Notes: 78 species of Astragalus in Arizona. Extremely difficult to identify species. I will show those represented here, but will usually identify only as a milkvetch or locoweed.