Related species: Calystegia subacaulis ssp. episcopalis Calystegia subacaulis ssp. subacaulis
Plant Communities: Northern Coastal Scrub Northern Oak Woodland
Counties: Alameda Contra Costa Colusa Kern Lake Marin Mendocino Monterey Napa Santa Barbara San Benito Santa Clara Santa Cruz San Francisco San Luis Obispo San Mateo Solano Sonoma