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Click on the possible link to see all plants observed within the boundaries of the park.
Click on the confirmed link to see plants with at least two observations within the boundaries of the park.
Alameda County | |||
| Carnegie State Vehicular Recreation Area (CDPR) | possible | confirmed | |
| Crown Memorial Regional Shoreline (CDPR) | possible | confirmed | |
| Eastshore State Park (CDPR) | possible | confirmed | |
Alpine County | |||
| Grover Hot Springs State Park (CDPR) | possible | confirmed | |
Amador County | |||
| Indian Grinding Rock State Historic Park (CDPR) | possible | confirmed | |
Butte County | |||
| Lake Oroville State Recreation Area (CDPR) | possible | confirmed | |
Calaveras County | |||
| Calaveras Big Trees State Park (CDPR) | possible | confirmed | |
Colusa County | |||
| Colusa-Sacramento River State Recreation Area (CDPR) | possible | confirmed | |
Contra Costa County | |||
| Franks Tract State Recreation Area (CDPR) | possible | confirmed | |
| Mount Diablo State Park (CDPR) | possible | confirmed | |
| Mt. Wanda (US National Park Service) | possible | confirmed | |
Del Norte County | |||
| Del Norte Coast Redwoods State Park (CDPR) | possible | confirmed | |
| Jedediah Smith Redwoods State Park (CDPR) | possible | confirmed | |
| Tolowa Dunes State Park (CDPR) | possible | confirmed | |
El Dorado County | |||
| D.L. Bliss State Park (CDPR) | possible | confirmed | |
| Ed Z'Berg Sugar Pine Point State Park (CDPR) | possible | confirmed | |
| Emerald Bay State Park (CDPR) | possible | confirmed | |
| Lake Valley State Recreation Area (CDPR) | possible | confirmed | |
| Marshall Gold Discovery State Historic Park (CDPR) | possible | confirmed | |
Fresno County | |||
| Kings Canyon/Sequoia National Park (US National Park Service) | possible | confirmed | |
Humboldt County | |||
| Benbow Lake State Recreation Area (CDPR) | possible | confirmed | |
| Grizzly Creek Redwoods State Park (CDPR) | possible | confirmed | |
| Harry A. Merlo State Recreation Area (CDPR) | possible | confirmed | |
| Humboldt Lagoons State Park (CDPR) | possible | confirmed | |
| Humboldt Redwoods State Park (CDPR) | possible | confirmed | |
| Little River State Beach (CDPR) | possible | confirmed | |
| Patrick's Point State Park (CDPR) | possible | confirmed | |
| Prairie Creek Redwoods State Park (CDPR) | possible | confirmed | |
| Redwood National Park, north (US National Park Service) | possible | confirmed | |
| Redwood National Park, south (US National Park Service) | possible | confirmed | |
| Richardson Grove State Park (CDPR) | possible | confirmed | |
| Sinkyone Wilderness SP (CDPR) | possible | confirmed | |
| Trinidad State Beach (CDPR) | possible | confirmed | |
Imperial County | |||
| Anza-Borrego Desert State Park (CDPR) | possible | confirmed | |
| Ocotillo Wells State Vehicular Recreation Area (CDPR) | possible | confirmed | |
| Picacho State Recreation Area (CDPR) | possible | confirmed | |
Inyo County | |||
| Death Valley National Park (US National Park Service) | possible | confirmed | |
Kern County | |||
| Fort Tejon State Historic Park (CDPR) | possible | confirmed | |
| Red Rock Canyon State Park (CDPR) | possible | confirmed | |
| Tule Elk State Reserve (CDPR) | possible | confirmed | |
Lake County | |||
| Clear Lake State Park (CDPR) | possible | confirmed | |
| Robert Louis Stevenson State Park (CDPR) | possible | confirmed | |
Lassen County | |||
| Lassen National Park (US National Park Service) | possible | confirmed | |
Los Angeles County | |||
| Antelope Valley CA Poppy Reserve (CDPR) | possible | confirmed | |
| Arthur B. Ripley Desert Woodland State Park (CDPR) | possible | confirmed | |
| Castro Crest (US National Park Service) | possible | confirmed | |
| Cheeseboro Canyon Open Space (US National Park Service) | possible | confirmed | |
| Decker Canyon (US National Park Service) | possible | confirmed | |
| Dockweiler State Beach (CDPR) | possible | confirmed | |
| Franklin Canyon Park (US National Park Service) | possible | confirmed | |
| Fryman Canyon Park (US National Park Service) | possible | confirmed | |
| Hungry Valley State Vehicular Recreation Area (CDPR) | possible | confirmed | |
| Kenneth Hahn State Recreation Area (CDPR) | possible | confirmed | |
| Leo Carrillo State Park (CDPR) | possible | confirmed | |
| Malibu Creek State Park (CDPR) | possible | confirmed | |
| Malibu Lagoon State Beach (CDPR) | possible | confirmed | |
| Malibu Springs (US National Park Service) | possible | confirmed | |
| Paramount Ranch (US National Park Service) | possible | confirmed | |
| Placerita Canyon State Park (CDPR) | possible | confirmed | |
| Point Dume State Beach (CDPR) | possible | confirmed | |
| Robert H. Meyer Memorial State Beach (CDPR) | possible | confirmed | |
| SMMNRA - Rocky Oaks Open Space (US National Park Service) | possible | confirmed | |
| Saddleback Butte State Park (CDPR) | possible | confirmed | |
| Santa Monica Mountains National Recreation Area (US National Park Service) | possible | confirmed | |
| Santa Susana Pass State Historic Park (CDPR) | possible | confirmed | |
| Topanga State Park (CDPR) | possible | confirmed | |
| Will Rogers State Historic Park (CDPR) | possible | confirmed | |
| Zuma/Trancas Canyons (US National Park Service) | possible | confirmed | |
Madera County | |||
| Devils Postpile National Monument (US National Park Service) | possible | confirmed | |
| Hemsley Lake Recreation Area US National Park Service | possible | confirmed | |
| Yosemite National Park (US National Park Service) | possible | confirmed | |
Marin County | |||
| Angel Island State Park (CDPR) | possible | confirmed | |
| China Camp State Park (CDPR) | possible | confirmed | |
| Golden Gate National Recreation Area (US National Park Service) | possible | confirmed | |
| Marconi Conference Center State Historic Park (CDPR) - restricted | possible | confirmed | |
| Mount Tamalpais State Park (CDPR) | possible | confirmed | |
| Muir Woods National Monument (US National Park Service) | possible | confirmed | |
| Olompali State Historic Park (CDPR) | possible | confirmed | |
| Point Reyes National Seashore (US National Park Service) | possible | confirmed | |
| Samuel P. Taylor State Park (CDPR) | possible | confirmed | |
| Tomales Bay State Park (CDPR) | possible | confirmed | |
Mariposa County | |||
| Yosemite National Park (US National Park Service) | possible | confirmed | |
Mendocino County | |||
| Caspar Headlands State Beach (CDPR) | possible | confirmed | |
| Greenwood State Beach (CDPR) | possible | confirmed | |
| Hendy Woods State Park (CDPR) | possible | confirmed | |
| Jug Handle State Reserve (CDPR) | possible | confirmed | |
| MacKerricher State Park (CDPR) | possible | confirmed | |
| Manchester State Park (CDPR) | possible | confirmed | |
| Mendocino Headlands State Park (CDPR) | possible | confirmed | |
| Montgomery Woods State Natural Reserve (CDPR) | possible | confirmed | |
| Navarro River Redwoods State Park (CDPR) | possible | confirmed | |
| Point Cabrillo Light Station (CDPR) | possible | confirmed | |
| Russian Gulch State Park (CDPR) | possible | confirmed | |
| Sinkyone Wilderness State Park (CDPR) | possible | confirmed | |
| Smithe Redwoods State Reserve (CDPR) | possible | confirmed | |
| Van Damme State Park (CDPR) | possible | confirmed | |
Merced County | |||
| Great Valley Grasslands State Park (CDPR) | possible | confirmed | |
| McConnell State Recreation Area (CDPR) | possible | confirmed | |
| Pacheco State Park (CDPR) | possible | confirmed | |
| San Luis Reservoir State Recreation Area (CDPR) | possible | confirmed | |
Mono County | |||
| Bodie State Historic Park (CDPR) | possible | confirmed | |
Monterey County | |||
| Andrew Molera State Park (CDPR) | possible | confirmed | |
| Asilomar State Beach (CDPR) | possible | confirmed | |
| Fort Ord Dunes State Park (CDPR) | possible | confirmed | |
| Fremont Peak State Park (CDPR) | possible | confirmed | |
| Garrapata State Park (CDPR) | possible | confirmed | |
| Julia Pfeiffer Burns State Park (CDPR) | possible | confirmed | |
| Limekiln State Park (CDPR) | possible | confirmed | |
| Marina State Beach (CDPR) | possible | confirmed | |
| Moss Landing State Beach (CDPR) | possible | confirmed | |
| Pfeiffer Big Sur State Park (CDPR) | possible | confirmed | |
| Pinnacles National Monument (US National Park Service) | possible | confirmed | |
| Point Lobos Ranch (CDPR) - no access | possible | confirmed | |
| Point Lobos State Reserve (CDPR) | possible | confirmed | |
| Salinas River State Beach (CDPR) | possible | confirmed | |
| Sunset State Beach (CDPR) | possible | confirmed | |
| Zmudowski State Beach (CDPR) | possible | confirmed | |
Napa County | |||
| Bothe-Napa Valley State Park (CDPR) | possible | confirmed | |
| Robert Louis Stevenson State Park (CDPR) | possible | confirmed | |
Nevada County | |||
| Donner Memorial State Park (CDPR) | possible | confirmed | |
| Empire Mine State Historic Park (CDPR) | possible | confirmed | |
| South Yuba River State Park (CDPR) | possible | confirmed | |
Orange County | |||
| Chino Hills State Park (CDPR) | possible | confirmed | |
| Corona del Mar State Beach (CDPR) | possible | confirmed | |
| Crystal Cove State Park (CDPR) | possible | confirmed | |
| Huntington State Beach (CDPR) | possible | confirmed | |
| San Clemente State Beach (CDPR) | possible | confirmed | |
Placer County | |||
| Burton Creek State Park (CDPR) | possible | confirmed | |
| Donner Memorial State Park (CDPR) | possible | confirmed | |
Plumas County | |||
| Lassen National Park (US National Park Service) | possible | confirmed | |
| Plumas-Eureka State Park (CDPR) | possible | confirmed | |
Riverside County | |||
| Anza-Borrego Desert State Park (CDPR) | possible | confirmed | |
| Indio Hills Palm (CDPR) | possible | confirmed | |
| Joshua Tree National Park (US National Park Service) | possible | confirmed | |
| Mount San Jacinto State Park (CDPR) | possible | confirmed | |
Sacramento County | |||
| Brannan Island State Recreation Area (CDPR) | possible | confirmed | |
| Delta Meadows (CDPR) | possible | confirmed | |
| Folsom Lake State Recreation Area, north (CDPR) | possible | confirmed | |
| Folsom Lake State Recreation Area, south (CDPR) | possible | confirmed | |
| Prairie City State Vehicluar Recreation Area (CDPR) | possible | confirmed | |
| Stone Lake (CDPR) | possible | confirmed | |
San Benito County | |||
| Hollister Hills State Vehicular Recreation Area (CDPR) | possible | confirmed | |
| Pinnacles National Monument (US National Park Service) | possible | confirmed | |
San Bernardino County | |||
| Chino Hills State Park (CDPR) | possible | confirmed | |
| Death Valley National Park (US National Park Service) | possible | confirmed | |
| East Mojave National Scenic Area (US National Park Service) | possible | confirmed | |
| Joshua Tree National Park (US National Park Service) | possible | confirmed | |
| Kelso Peak & Old Dad Mtns. Wildlife Area (US National Park Service) - restricted | possible | confirmed | |
| Mojave National Preserve (US National Park Service) | possible | confirmed | |
| Providence Mountains State Recreation Area (CDPR) | possible | confirmed | |
| Silverwood Lake State Recreation Area (CDPR) | possible | confirmed | |
| Wildwood Canyon (CDPR) | possible | confirmed | |
San Diego County | |||
| Anza-Borrego Desert State Park (CDPR) | possible | confirmed | |
| Border Field State Park (CDPR) | possible | confirmed | |
| Cabrillo National Monument (US National Park Service) | possible | confirmed | |
| Cardiff State Beach (CDPR) | possible | confirmed | |
| Cuyamaca Rancho State Park (CDPR) | possible | confirmed | |
| Ocotillo Wells State Vehicular Recreation Area (CDPR) | possible | confirmed | |
| Palomar Mountain State Park (CDPR) | possible | confirmed | |
| Silver Strand State Beach (CDPR) | possible | confirmed | |
| South Carlsbad State Beach (CDPR) | possible | confirmed | |
| Torrey Pines State Reserve (CDPR) | possible | confirmed | |
San Francisco County | |||
| Alcatraz Island (US National Park Service) | possible | confirmed | |
| Golden Gate National Recreation Area (US National Park Service) | possible | confirmed | |
| Presidio (US National Park Service) | possible | confirmed | |
San Joaquin County | |||
| Carnegie State Vehicular Recreation Area (CDPR) | possible | confirmed | |
San Luis Obispo County | |||
| Harmony Headlands State Park (CDPR) | possible | confirmed | |
| Hearst San Simeon SP (CDPR) | possible | confirmed | |
| Los Osos Oaks State Reserve (CDPR) | possible | confirmed | |
| Montana de Oro State Park (CDPR) | possible | confirmed | |
| Morro Bay State Park (CDPR) | possible | confirmed | |
| Morro Strand State Beach (CDPR) | possible | confirmed | |
| Oceano Dunes State Vehicular Recreation Area (CDPR) | possible | confirmed | |
| Pismo State Beach (CDPR) | possible | confirmed | |
| San Simeon State Park (CDPR) | possible | confirmed | |
San Mateo County | |||
| Ano Nuevo State Reserve (CDPR) | possible | confirmed | |
| Ano Nuevo State Reserve (CDPR) - no access | possible | confirmed | |
| Bean Hollow State Beach (CDPR) | possible | confirmed | |
| Burleigh H Murray Ranch (CDPR) | possible | confirmed | |
| Butano State Park (CDPR) | possible | confirmed | |
| Cascade Ranch Unit - Ano Nuevo State Park (CDPR) | possible | confirmed | |
| Half Moon Bay State Beach (CDPR) | possible | confirmed | |
| Milagra Ridge, Golden Gate National Recreation Area (US National Park Service) | possible | confirmed | |
| Montara State Beach (CDPR) | possible | confirmed | |
| Mori Point (US National Park Service) | possible | confirmed | |
| Pescadero Marsh State Beach (CDPR) - restricted | possible | confirmed | |
| Phleger Estate, Golden Gate National Recreation Area (US National Park Service) | possible | confirmed | |
| Pigeon Point Light Station State Historic Park (CDPR) | possible | confirmed | |
| San Bruno Mountain State Park (CDPR) | possible | confirmed | |
| San Gregorio State Beach (CDPR) | possible | confirmed | |
| Sweeney Ridge, Golden Gate National Recreation Area (US National Park Service) | possible | confirmed | |
Santa Barbara County | |||
| Carpinteria State Beach (CDPR) | possible | confirmed | |
| Gaviota State Park (CDPR) | possible | confirmed | |
| La Purisima Mission State Historic Park (CDPR) | possible | confirmed | |
| Santa Barbara Island, Channel Islands National Park (US National Park Service) - restricted | possible | confirmed | |
| Santa Rosa Island, Channel Islands National Park (US National Park Service) - restricted | possible | confirmed | |
Santa Clara County | |||
| Henry W. Coe State Park (CDPR) | possible | confirmed | |
Santa Cruz County | |||
| Big Basin Redwoods State Park (CDPR) | possible | confirmed | |
| Castle Rock State Park (CDPR) | possible | confirmed | |
| Henry Cowell Redwoods State Park (CDPR) | possible | confirmed | |
| The Forest of Nisene Marks State Park (CDPR) | possible | confirmed | |
| Wilder Ranch State Park (CDPR) | possible | confirmed | |
Shasta County | |||
| Ahjumawi Lava Springs State Park (CDPR) | possible | confirmed | |
| Castle Crags State Park (CDPR) | possible | confirmed | |
| Lassen National Park (US National Park Service) | possible | confirmed | |
| McArthur-Burney Falls Memorial State Park (CDPR) | possible | confirmed | |
| Whiskeytown-Shasta-TrinityNational Recreation Area (US National Park Service) | possible | confirmed | |
Siskiyou County | |||
| Lava Beds National Monument (US National Park Service) | possible | confirmed | |
Solano County | |||
| Benicia State Recreation Area (CDPR) | possible | confirmed | |
Sonoma County | |||
| Annadel State Park (CDPR) | possible | confirmed | |
| Armstrong Redwoods State Reserve (CDPR) | possible | confirmed | |
| Austin Creek State Recreation Area (CDPR) | possible | confirmed | |
| Fort Ross State Historic Park (CDPR) | possible | confirmed | |
| Jack London State Historic Park (CDPR) | possible | confirmed | |
| Kruse Rhododendron State Reserve (CDPR) | possible | confirmed | |
| Robert Louis Stevenson State Park (CDPR) | possible | confirmed | |
| Salt Point State Park (CDPR) | possible | confirmed | |
| Sonoma Coast State Park (CDPR) | possible | confirmed | |
| Sonoma Coast State Park, Willow Creek (CDPR) - restricted | possible | confirmed | |
| Sugarloaf Ridge State Park, south (CDPR) | possible | confirmed | |
| Sugarloaf Ridge State Park, north (CDPR) | possible | confirmed | |
Stanislaus County | |||
| Caswell Memorial State Park (CDPR) | possible | confirmed | |
Sutter County | |||
| Sutter Buttes (CDPR) - no access | possible | confirmed | |
Tehama County | |||
| Lassen National Park (US National Park Service) | possible | confirmed | |
| Woodson Bridge State Recreation Area (CDPR) | possible | confirmed | |
Tulare County | |||
| Kings Canyon/Sequoia National Park (US National Park Service) | possible | confirmed | |
Tuolumne County | |||
| Calaveras Big Trees State Park (CDPR) | possible | confirmed | |
| Columbia State Historic Park (CDPR) | possible | confirmed | |
| Yosemite National Park (US National Park Service) | possible | confirmed | |
Ventura County | |||
| Anacapa Island, Channel Islands National Park (US National Park Service) - restricted | possible | confirmed | |
| Circle X Ranch (US National Park Service) | possible | confirmed | |
| Emma Wood State Beach (CDPR) | possible | confirmed | |
| Mandalay State Beach (CDPR) | possible | confirmed | |
| McGrath State Beach (CDPR) | possible | confirmed | |
| Palo Comado Canyon (US National Park Service) | possible | confirmed | |
| Point Mugu State Park (CDPR) | possible | confirmed | |
| Rancho Sierra Vista (US National Park Service) | possible | confirmed | |
