Related species: Astragalus douglasii var. perstrictus Astragalus douglasii var. douglasii Astragalus douglasii var. parishii
Plant Communities: Valley Grassland Foothill Woodland Yellow Pine Forest Joshua Tree Woodland
Counties: Fresno Imperial Kings Kern Los Angeles Madera Merced Monterey Nevada Riverside Santa Barbara San Bernardino San Benito San Diego San Joaquin San Luis Obispo San Mateo Stanislaus Tulare Ventura Yolo