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.

Amsinckia grandiflora (large-flowered fiddleneck)

Arctostaphylos montaraensis (Montara manzanita)

Calochortus tiburonensis (Tiburon Mariposa Lily)

Flora

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
• Sorex ornatus sinuosus
• Syncaris pacifica
• Thicktail chub

• 
  Bay Checkerspot
• California clapper rail
  California clapper rail
• 
  Mission blue butterfly
• 
  Reithrodontomys raviventris (salt marsh harvest mouse)
• 
  Syncaris pacifica
• 
  Thicktail Chub