About Psorothamnus fremontii (Torr. ex A.Gray) Barneby
Psorothamnus fremontii, synonyms include Psorodendron fremontii, and is commonly known as Fremont's dalea or Fremont's indigo bush, named after John C. Frémont. It is a perennial legume shrub. It is widespread across the Southwestern United States and northwest Mexico, found in the U.S. states of California, Nevada, Utah, and Arizona, and the Mexican states of Sonora and Baja California. It grows in the Sonoran Deserts (including the Colorado Desert), the Great Basin Deserts, and the Mojave Desert sky islands, at elevations between 250 and 1,350 metres, or 820 and 4,430 feet.
