Related species: Clarkia gracilis ssp. albicaulis Clarkia gracilis ssp. sonomensis Clarkia gracilis ssp. gracilis Clarkia gracilis ssp. tracyi
Plant Communities: Mixed Evergreen Forest Foothill Woodland Yellow Pine Forest
Counties: Alameda Amador Butte Calaveras Contra Costa Colusa Del Norte El Dorado Glenn Humboldt Lake Lassen Marin Mariposa Mendocino Modoc Napa Nevada Plumas San Benito Santa Clara San Luis Obispo San Mateo Shasta Sierra Siskiyou Solano Sonoma Sutter Tehama Trinity Yolo Yuba