Related species: Pentachaeta exilis ssp. aeolica Pentachaeta exilis ssp. exilis
Plant Communities: Valley Grassland Foothill Woodland
Counties: Alameda Calaveras Contra Costa Colusa El Dorado Glenn Lake Los Angeles Mariposa Mendocino Merced Monterey Napa Placer San Benito Santa Clara San Luis Obispo San Mateo Sonoma Stanislaus Tuolumne