List of species endemic to the San Francisco Bay Area



This is a list of species endemic to the San Francisco Bay Area, the nine California counties which border on San Francisco Bay. The area has a number of highly diverse, local bioregions, including San Bruno Mountain.

A

 * Acanthomintha duttonii, common names San Mateo thornmint or Dutton's acanthomintha, found at Montara Mountain in San Mateo County
 * Amsinckia grandiflora, common name large-flowered fiddleneck, found near the Lawrence Livermore National Laboratory in Alameda County
 * Arctostaphylos bakeri, common name Baker's manzanita, found in Sonoma County
 * Arctostaphylos densiflora, common name Vine Hill manzanita, found on land owned and protected by the California Native Plant Society, near Sebastopol, in Sonoma County
 * Arctostaphylos hookeri, common name Franciscan manzanita, found in The Presidio, San Francisco, in San Francisco County
 * Arctostaphylos imbricata, common name San Bruno Mountain manzanita, found on San Bruno Mountain in San Mateo County
 * Arctostaphylos montaraensis, common name Montara manzanita, found on San Bruno Mountain and Montara Mountain in San Mateo County
 * Arctostaphylos pallida, common names pallid manzanita, Oakland Hills manzanita, and Alameda manzanita, found in the eastern San Francisco Bay Area
 * Arctostaphylos virgata, common names Bolinas manzanita and Marin manzanita, found in Marin County

B

 * Blennosperma bakeri, common names Baker's stickyseed and Sonoma sunshine, found in Sonoma County

C

 * Calochortus raichei, common names Cedars fairy-lantern and Cedars mariposa lily, found in Sonoma County
 * Calochortus tiburonensis, common name Tiburon mariposa lily, found at Ring Mountain in Marin County
 * Carex albida, common name white sedge, found in Sonoma County
 * Ceanothus ferrisiae, common name coyote ceanothus, found at Mount Hamilton in Santa Clara County
 * Ceanothus masonii
 * Chorizanthe valida
 * Clarkia imbricata
 * Cordylanthus nidularius

D

 * Deinandra bacigalupii
 * Delphinium bakeri
 * Delphinium luteum
 * Dirca occidentalis
 * Dudleya setchellii

E

 * Elymus californicus
 * Erigeron serpentinus
 * Eriogonum cedrorum
 * Eriogonum truncatum
 * Eriophyllum latilobum

H

 * Hesperolinon congestum, common name Marin dwarf flax

I

 * Isocoma arguta

L

 * Lessingia micradenia
 * Lilium pardalinum subsp. pitkinense
 * Limnanthes vinculans

O

 * Oenothera deltoides subsp. howellii

P

 * Pentachaeta bellidiflora
 * Phacelia breweri
 * Phacelia phacelioides
 * Plagiobothrys strictus
 * Poa napensis
 * Polygonum marinense

S

 * Sidalcea hickmanii ssp. viridis
 * Streptanthus batrachopus
 * Streptanthus callistus
 * Streptanthus hispidus
 * Streptanthus niger

Fauna

 * Apodemia mormo langei
 * Bay checkerspot
 * California lizardfish
 * Calosima munroei
 * Mission blue butterfly
 * Porcellio formosus
 * California clapper rail, also found nominally in other locales, this bird has gotten extensive attention in the Bay Area
 * Salt marsh harvest mouse
 * San Bruno elfin butterfly
 * San Francisco garter snake, San Mateo and northern Santa Cruz County
 * Sorex ornatus sinuosus
 * Syncaris pacifica
 * Thicktail chub

Endangered or extinct

 * Xerces blue, was found in San Francisco