CNPS.ORG Inventory of Rare and Endangered Plants - 7th edition interface
v7-18mar 3-19-18
Status: record chorizanthe_cuspidata_var._cuspidata - Sat, Dec. 4, 2021, 17:47 ET b
Chorizanthe cuspidata var. cuspidata
common nameSan Francisco Bay spineflower
CalPhotos image
more photos
© 1998 Doreen L. Smith  Follow image link for photo data.
life formannual 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
S1      ranking system key
global rank
G2T1      ranking system key
Where did the "RED" code go?
CA state listingNone  
federal listingNone  
where found
MAPS - Use v8 link below.

Topographic quads (10):
San Francisco South (448B) 3712264, Montara Mountain (448C) 3712254, San Mateo (448D) 3712253, San Francisco North (466C) 3712274, Oakland West (466D)* 3712273, San Rafael (467A) 3712285, Tomales (485B)? 3812228, Drakes Bay (485C)? 3812218, Valley Ford (502C)? 3812238, Bodega Head (503D)? 3812331
quad data info

Counties, states, regions:
Alameda (ALA)*, 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•Coastal bluff scrub (CBScr)
•Coastal dunes (CoDns)
•Coastal prairie (CoPrr)
•Coastal scrub (CoScr)/sandy
blooming period Apr-Jul(Aug),   Months in parentheses are uncommon.
elevation range3 - 215 meters
Plant may occur in SCL Co.; need more information. Threatened by non-native plants. Closely related to C. pungens. Some plants from Pt. Reyes, MRN Co. (485B, 485C) to Bodega Head, SON Co. (502C, 503D) probably intermediate to var. villosa. See C. cuspidata in The Jepson Manual. See Proceedings of the Davenport Academy of Natural Sciences 4:60 (1884) for original description, and Phytologia 66(2):127-129 (1989) for taxonomic treatment.
full nameChorizanthe cuspidata Wats. var. cuspidata
Version 8    INVENTORY VERSION 8 interface for this taxon, including GIS and more links

Additional information:
standard acronym  CHCUC Element Code  PDPGN04081
CalFlora species this taxon    CalFlora genus related taxa
Jepson Online Jepson Interchange  Jepson Manual and other resources
Google search
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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 Sat, Dec. 4, 2021 from

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