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Cirsium andrewsii
Common Name: Franciscan thistle
Family: Asteraceae
Element Code: PDAST2E050
Full Name: Cirsium andrewsii (Gray) Jeps.

2013 Robert Sikora
Biology Glossary
  • Lifeform: perennial herb
  • Blooming Period: Mar-Jul
  • Habitat: mesic, sometimes serpentinite.
    • Broadleafed upland forest
    • Coastal bluff scrub
    • Coastal prairie
    • Coastal scrub
Rarity Status Glossary
Occurrence Data from CDFW
California Natural Diversity Database Glossary
  • Total # of Known Element Occurrences: 31
  • Element Occurrence Ranks:
    A B C D X U
    3 11 3 0 3 11
  • Population Status:
    >20 yrs
    <=20 yrs
    13 18
  • Presence:
    Present Extant Possibly Extirpated Presumed Extirpated
    28 3 0
Notes Glossary
  • Threatened by development and non-native plants. See Proceedings of the American Academy of Arts and Sciences 10:45 (1874) for original description, and A Flora of Western Middle California , p. 506 (1901) by W. L. Jepson for revised nomenclature.
  • To submit rare plant observation data, use the CNDDB field survey form. Please see also the CNPS Rare Plant Data page.
  • Date Added: 1974-01-01
  • Last Update: 2010-03-15
Location Glossary
  • Elevation: 0 - 150 meters
  • California Endemic: yes
  • Other States:
  • California Counties and Islands:   name (code)
    Contra Costa (CCA),  Marin (MRN),  San Francisco (SFO),  San Mateo (SMT),  Sonoma (SON) (*?)
  • Quads:   name (DWR code) USGS code
    Franklin Point (409A)* 3712223,  San Francisco South (448B) 3712264,  Montara Mountain (448C) 3712254,  Briones Valley (465B) 3712282,  San Francisco North (466C) 3712274,  Point Bonita (467D) 3712275,  Point Reyes NE (485A) 3812227,  Tomales (485B) 3812228,  Drakes Bay (485C) 3812218,  Inverness (485D) 3812217,  Valley Ford (502C) 3812238,  Bodega Head (503D)(*?) 3812331
  • Notes:
      Definitions of codes preceding a county and/or quad:
      * Presumed extirpated
      ? Uncertain about distribution or identity
      ?* Uncertain about distribution, but presumed extirpated if once present
      (?) Occurrence confirmed, but possibly extirpated
      Species may be present in other areas where conditions are favorable. This data should NOT be substituted for pre-project review or for on-site surveys.
Presumed Extant Presumed Extirpated or Unknown 479
Links to Leading Resources of Taxon Information
Suggested Citation
California Native Plant Society, Rare Plant Program. . Inventory of Rare and Endangered Plants of California (online edition, v8-03). Website http://www.rareplants.cnps.org [accessed ].

3712223=Franklin Point (409A)* 3712223;3712264=San Francisco South (448B) 3712264;3712254=Montara Mountain (448C) 3712254;3712282=Briones Valley (465B) 3712282;3712274=San Francisco North (466C) 3712274;3712275=Point Bonita (467D) 3712275;3812227=Point Reyes NE (485A) 3812227;3812228=Tomales (485B) 3812228;3812218=Drakes Bay (485C) 3812218;3812217=Inverness (485D) 3812217;3812238=Valley Ford (502C) 3812238;3812331=Bodega Head (503D)(*?) 3812331