List of species endemic to the San Francisco Bay Area

Amsinckia grandiflora (large-flowered fiddleneck)

Arctostaphylos montaraensis (Montara manzanita)

Calochortus tiburonensis (Tiburon Mariposa Lily)

Ceanothus masonii

Chorizanthe valida

Delphinium bakeri

Dudleya setchellii

Hesperolinon congestum (Marin Dwarf Flax)

Lilium pardalinum subsp. pitkinense

Limnanthes vinculans

Oenothera deltoides subsp. howellii (Antioch Dunes Evening Primrose)

File:Whiterayedusda2.jpg

Pentachaeta bellidiflora

Phacelia breweri

Streptanthus niger

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.

Flora

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 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

Extinct

• Xerces Blue, was found in San Francisco

• 
  Apodemia mormo langei
• 
  Bay Checkerspot
• California clapper rail
  California clapper rail
• 
  Mission blue butterfly
• 
  Reithrodontomys raviventris (salt marsh harvest mouse)
• 
  San Francisco garter snake
• 
  Syncaris pacifica
• 
  Thicktail Chub
• 
  Xerces Blue specimens