Plant Communities: Valley Grassland Foothill Woodland
Synonyms: Trifolium albopurpureum var. olivaceum Trifolium columbianum var. olivaceum
Counties: Alameda Butte Calaveras Contra Costa Colusa Fresno Glenn Humboldt Kern Lake Marin Mendocino Monterey Napa Placer Santa Barbara San Bernardino San Benito Santa Clara San Luis Obispo Solano Sonoma Sutter Tehama Trinity Yolo Yuba