Parent species: Orobanche uniflora
Counties: Alpine Amador Butte Contra Costa Del Norte El Dorado Fresno Glenn Humboldt Kern Lake Lassen Madera Marin Mariposa Mendocino Merced Mono Monterey Modoc Napa Nevada Placer Plumas Santa Barbara San Bernardino San Benito Santa Clara Santa Cruz San Diego San Joaquin San Luis Obispo Shasta Sierra Siskiyou Solano Stanislaus Sutter Tehama Trinity Tulare Tuolumne Ventura Yolo Yuba