Related species: Oenothera californica ssp. californica Oenothera californica ssp. eurekensis Oenothera californica ssp. avita
Plant Communities: Coastal Sage Scrub Chaparral Southern Oak Woodland Joshua Tree Woodland
Counties: Fresno Imperial Inyo Kern Lassen Los Angeles Mono Monterey Orange Plumas Riverside Santa Barbara San Bernardino San Diego San Luis Obispo Tulare Ventura