Counties:
Alameda
Amador
Butte
Calaveras
Contra Costa
Kern
Los Angeles
Mendocino
Merced
Monterey
Marin
Napa
Orange
Riverside
Santa Barbara
San Bernardino
San Benito
Santa Clara
San Diego
San Francisco
San Luis Obispo
San Mateo
Sonoma
Tulare
Tuolumne
Ventura

Jepson Bioregions:
Desert Mountains
Warner Mountains
White and Inyo Mountains
North Coast
Klamath Ranges
North Coast Ranges
Cascade Range Foothills
High Cascade Range
Sierra Nevada Foothills
High Sierra Nevada
Tehachapi Mtns
Sacramento Valley
San Joaquin
Central Coast
SF Bay
South Coast Ranges
South Coast
Channel Islands
Transverse Ranges
Peninsular Ranges
Modoc Plateau
Sierra Nevada East
Mojave Desert
Sonoran Desert