Allium parishii is an uncommon species of wild onion known by the common name Parish's onion. It is native to the Mojave Desert and Sonoran Deserts of California (San Bernardino, Riverside, and San Diego Counties) and Arizona (Yuma and Mohave Counties). It grows on open dry, rocky slopes at elevations of 900–1,400 m (3,000–4,600 ft).