CNPS.ORG Inventory of Rare and Endangered Plants - 7th edition interface
v7-18mar 3-19-18
Status: record cirsium_andrewsii - Wed, Dec. 1, 2021, 01:01 ET b
Cirsium andrewsii
common nameFranciscan thistle
CalPhotos image
more photos
Brother Alfred Brousseau © 1995 Saint Mary's College of California  Follow image link for photo data.
life formperennial herb
CA Rare Plant Rank
List 1B.2
LIST 1B: Rare, threatened, or endangered in California and elsewhere.
     0.2: Fairly endangered in California
state rank
S3      ranking system key
global rank
G3     G3: 21-80 occurrences or 3,000-10,000 individuals OR 10,000-50,000 acres
Where did the "RED" code go?
CA state listingNone  
federal listingNone  
where found
MAPS - Use v8 link below.

Topographic quads (12):
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
quad data info

Counties, states, regions:
Contra Costa (CCA), Marin (MRN), San Francisco (SFO), San Mateo (SMT), Sonoma (SON)(*?)
A reminder: Species not recorded for a given area may nonetheless be present, especially where favorable conditions occur.
CNPS habitats•Broadleafed upland forest (BUFrs)
•Coastal bluff scrub (CBScr)
•Coastal prairie (CoPrr)
•Coastal scrub (CoScr)/mesic, sometimes serpentinite
blooming period Mar-Jul  
elevation range0 - 150 meters
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.
full nameCirsium andrewsii (Gray) Jeps.
Version 8    INVENTORY VERSION 8 interface for this taxon, including GIS and more links

Additional information:
standard acronym  CIAN2 Element Code  PDAST2E050
CalFlora species this taxon    CalFlora genus related taxa
Jepson Online Jepson Interchange  Jepson Manual and other resources
Google search
search Google CNPS website    search Google entire web

Suggested citation: California Native Plant Society (CNPS). 2018. Inventory of Rare and Endangered Plants (online edition, v7-18mar). California Native Plant Society. Sacramento, CA. Accessed on Wed, Dec. 1, 2021 from

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