Parent species: Lupinus formosus
Synonyms: Lupinus lutosus
Counties: Alameda Calaveras Contra Costa El Dorado Fresno Humboldt Kern Los Angeles Marin Mariposa Mendocino Mono Monterey Napa Riverside Santa Barbara San Bernardino San Benito Santa Clara Santa Cruz San Diego San Mateo Solano Sonoma Tulare Tuolumne Ventura Yolo