Cultivars: Heterotheca villosa 'San Bruno Mountain'
Related species: Heterotheca villosa var. scabra Heterotheca villosa var. minor
Plant Communities: Yellow Pine Forest Sagebrush Scrub Coastal Sage Scrub Chaparral Northern Coastal Scrub Foothill Woodland Valley Grassland Red Fir Forest Joshua Tree Woodland Mixed Evergreen Forest
Counties: Alpine Contra Costa Colusa El Dorado Kern Lassen Los Angeles Mariposa Monterey Modoc Nevada Placer Plumas Riverside San Bernardino San Benito San Luis Obispo Shasta Sierra Siskiyou Trinity Tuolumne Ventura