Psorothamnus fremontii, the Fremont's dalea or Fremont's indigo bush (after John C. Frémont) is a perennial legume shrub. Distribution Psorothamnus fremontii is common to the Southwestern United States and northwest Mexico - in the states of California, Nevada, Utah, and Arizona, Sonora, and Baja California. The plant is found in the Sonoran Deserts (including the Colorado Desert), the Great Basin Deserts, and the Mojave Desert sky islands, from in elevation. References External links Calflora Database: Psorothamnus fremontii (Fremont indigobush, Fremont's dalea, Fremont's indigo bush) Jepson Manual eFlora (TJM2) treatment of Psorothamnus fremontii USDA Plants Profile for Psorothamnus fremontii Psorothamnus fremontii profile - Lady Bird Johnson: "Wildflower Center". U.C. Photos Gallery — Psorothamnus fremontii fremontii Flora of the Southwestern United States Flora of the California desert regions Flora of the Great Basin Flora of the Sonoran Deserts Flora of Baja California Flora of Arizona Flora of Nevada Flora of Sonora Flora of Utah Natural history of the Mojave Desert John C. Frémont Taxa named by Asa Gray Taxa named by John Torrey Flora without expected TNC conservation status