Synonyms: Rhamnus crocea ssp. ilicifolia Rhamnus crocea var. ilicifolia
Counties: Alameda Amador Butte Calaveras Contra Costa Colusa El Dorado Fresno Humboldt Imperial Inyo Kern Lake Los Angeles Madera Mariposa Mendocino Monterey Napa Nevada Orange Placer Riverside Sacramento Santa Barbara San Bernardino San Benito Santa Clara Santa Cruz San Diego San Joaquin San Luis Obispo San Mateo Shasta Siskiyou Solano Sonoma Stanislaus Sutter Tehama Trinity Tulare Tuolumne Ventura Yolo Yuba