Related species: Perideridia gairdneri ssp. gairdneri Perideridia gairdneri ssp. borealis
Plant Communities: wetland-riparian
Counties: Contra Costa Del Norte El Dorado Fresno Glenn Humboldt Inyo Kern Lake Lassen Los Angeles Madera Marin Mariposa Mendocino Monterey Modoc Napa Orange Plumas Riverside San Bernardino San Benito Santa Clara Santa Cruz San Diego San Luis Obispo San Mateo Shasta Sierra Siskiyou Solano Sonoma Tehama Trinity Tulare Tuolumne Ventura