Related species: Heterotheca oregona var. scaberrima Heterotheca oregona var. compacta Heterotheca oregona var. oregona Heterotheca oregona var. rudis
Plant Communities: Redwood Forest Mixed Evergreen Forest Northern Oak Woodland Foothill Woodland Yellow Pine Forest Chaparral
Counties: Alameda Butte Colusa Del Norte El Dorado Glenn Humboldt Lake Marin Mendocino Monterey Napa Plumas Sacramento San Benito Santa Clara San Joaquin San Luis Obispo Shasta Siskiyou Sonoma Stanislaus Tehama Trinity Yolo