RANGE: Endemic to the Sonoran Desert in southern California (San Diego, Riverside, and Imperial counties), Arizona (Yuma County), and northwestern Mexico (Sonora and Baja) THREATS: Urban and ...
RANGE: Coastal San Mateo County from Lake Merced south along the foothills of the Santa Cruz Mountains to Point Año Nuevo and along San Mateo County baylands THREATS: Urban development, wetland ...