# 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.

## 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 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
* Apodemia mormo langei
* Bay checkerspot
* Mission blue butterfly
* Reithrodontomys raviventris (salt marsh harvest mouse)
* San Francisco garter snake
* Syncaris pacifica
* Thicktail chub
* Xerces blue specimens