13 Rare Plants - Many Listed as Endangered

 

The following plants found on San Bruno Mountain are all endemic to California (found only in California) and are considered to be rare.  Many are listed as endangered by the California Native Plant Society (CNPS).  More information about how plants are listed can be found at the CNPS Rare Plant Program site.

The CNPS has created 5 lists which attempt to categorize plants based on degrees of concern.  The rare plants below fall into 2 categories:

List 1B:  Plants that are Rare, Threatened, or Endangered in California and Elsewhere

List 4:  Plants of Limited Distribution - A Watch List

Click on photo for larger CalPhoto image
Click on species name for Calfora Taxon Report
Click on CNPS List for the species page in the CNPS Inventory of Rare and Endangered Plants

 

  Coast Rock Cress

Arabis blepharophylla

Brassicaceae


  © 2010 Aaron Schusteff

 

CNPS List 4.3

 Limited Distribution

Endemic to California


 

 

  San Bruno Mountain Manzanita

Arctostaphylos imbricata

Ericaceae


  © 2006 Steve Matson

 

CNPS List 1B.1

 Seriously Endangered

Endemic to California


 

 

  Montara Manzanita

Arctostaphylos montaraensis

Ericaceae


  © 2010 Neal Kramer

 

CNPS List 1B.2

 Fairly Endangered

Endemic to California


 

 

  Pacific Manzanita

Arctostaphylos pacifica

Ericaceae


  © 2008 Toni Corelli

 

CNPS List 1B.1

 Seriously Endangered

Endemic to California


 

 

  San Francisco Spineflower

Chorizanthe cuspidata var. cuspidata

Polygonaceae


  © 2010 Sangeet Khalsa

 

CNPS List 1B.2

 Fairly Endangered

Endemic to California


 

 

  San Francisco Collinsia

Collinsia multicolor

Scrophulariaceae


  © 2008 Aaron Schusteff

 

CNPS List 1B.2

 Fairly Endangered

Endemic to California


 

 

  San Francisco Wallflower

Erysimum franciscanum

Brassicaceae


  2008 Alane Gray SBMW

 

CNPS List 4.2

 Limited Distribution

Endemic to California


 

 

  San Francisco Gum Plant

Grindelia hirsutula var. maritima

Asteraceae


  2010 Alane Gray SBMW

 

CNPS List 1B.2

 Fairly Endangered

Endemic to California


 

 

  Diablo Helianthella

Helianthella castanea

Asteraceae


  Charles Webber © California Academy of Sciences

 

CNPS List 1B.2

 Fairly Endangered

Endemic to California


 

 

  Central Coast Iris

Iris longipetala

Iridaceae


  © 2009 Vernon Smith

 

CNPS List 4.2

 Limited Distribution

Endemic to California


 

 

  California Lessingia

Lessingia germanorum

Asteraceae


  National Park Service photo

 

CNPS List 1B.1

 Seriously Endangered

Endemic to California


 

 

  Choris' Popcornflower

Plagiobothrys chorisianus var. chorisianus

Boraginaceae


  2010 Alane Gray SBMW

 

CNPS List 1B.2

 Fairly Endangered

Endemic to California


 

 

  San Francisco Campion

Silene verecunda ssp. verecunda

Caryophyllaceae


  © 1988 Dean Wm. Taylor

 

CNPS List 1B.2

 Fairly Endangered

Endemic to California