CNPS.ORG Inventory of Rare and Endangered Plants - 7th edition interface
v7-18mar 3-19-18
Status: record cirsium_fontinale_var._fontinale - Wed, Dec. 8, 2021, 22:57 ET b
Cirsium fontinale var. fontinale
common nameCrystal Springs fountain thistle
CalPhotos image
more photos
© 2007 Toni Corelli  Follow image link for photo data.
life formperennial herb
CA Rare Plant Rank
List 1B.1
LIST 1B: Rare, threatened, or endangered in California and elsewhere.
     0.1: Seriously endangered in California
state rank
S1      ranking system key
global rank
G2T1      ranking system key
Where did the "RED" code go?
CA state listingEndangered  07/79
federal listingEndangered  02/03/95
where found
MAPS - Use v8 link below.

Topographic quads (3):
Palo Alto (428B) 3712242, Woodside (429A) 3712243, San Mateo (448D) 3712253
quad data info

Counties, states, regions:
San Mateo (SMT)
A reminder: Species not recorded for a given area may nonetheless be present, especially where favorable conditions occur.
CNPS habitats•Chaparral (Chprl)(openings)
•Cismontane woodland (CmWld)
•Meadows and seeps (Medws)
•Valley and foothill grassland (VFGrs)/Serpentinite seeps
blooming period (Apr),May-Oct   Months in parentheses are uncommon.
elevation range45 - 175 meters
Known only from the vicinity of Crystal Springs Reservoir. Seriously threatened by urbanization, foot traffic, dumping, road maintenance, non-native plants, and hydrological alterations. See Bulletin of the California Academy of Sciences 2:151-152 (1886) for original description.
full nameCirsium fontinale (Greene) Jeps. var. fontinale
Version 8    INVENTORY VERSION 8 interface for this taxon, including GIS and more links

Additional information:
standard acronym  CIFOF Element Code  PDAST2E161
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. 8, 2021 from

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