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 250 – in elevation.