]> GH barcode-02049673 United States of America Utah on south slope of Beaverdam Mts., 7 miles north-northeast of Utah-Arizona boundary, a little more than 2 miles above Castle Cliff, on U.S. highway 91, between St. George and Mesquite (Nevada) Astragalus nuttallianus var. imperfectus (Rydberg) Barneby (Rydberg) Barneby 2020-08-28 14:45:51 A. J. Cronquist