Astragalus tetrapterus, a new poisonous plant of Utah and Nevada - Marsh, C. Dwight (Charles Dwight),; Clawson, A. B. (Washington, D.C, U.S. Dept. of Agriculture, 1920)
https://www.biodiversitylibrary.org/bibliography/65739
Keywords: Astragalus (Plants)|Poisonous plants|Utah