Parent species: Lithophragma parviflorum
Counties: Alameda Amador Butte Contra Costa Colusa El Dorado Fresno Glenn Humboldt Kern Lake Lassen Mariposa Mendocino Merced Monterey Modoc Napa Placer Plumas San Bernardino San Benito Santa Clara San Diego San Joaquin San Luis Obispo Shasta Sierra Stanislaus Sutter Tehama Tulare Tuolumne Ventura