New Names: Frangula californica ssp. californica
Parent species: Rhamnus californica
Counties: Alameda Butte Contra Costa Colusa Del Norte El Dorado Fresno Humboldt Inyo Kern Lake Los Angeles Madera Marin Mariposa Mendocino Monterey Napa Nevada Orange Placer Riverside Sacramento Santa Barbara San Bernardino San Benito Santa Clara Santa Cruz San Diego San Francisco San Luis Obispo San Mateo Shasta Siskiyou Solano Sonoma Tehama Trinity Tulare Ventura Yuba