CNPS.ORG Inventory of Rare and Endangered Plants - 7th edition interface
v7-18mar 3-19-18
Status: record ceanothus_decornutus - Wed, Dec. 1, 2021, 11:25 ET b
Ceanothus decornutus
common nameNicasio ceanothus
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familyRhamnaceae
life form shrub
CA Rare Plant Rank
List 1B.2
CA-Endemic
LIST 1B: Rare, threatened, or endangered in California and elsewhere.
     0.2: Fairly endangered in California
state rank
S1      ranking system key
global rank
G1     G1: Less than 6 occurrences OR less than 1,000 individuals OR less than 2,000 acres.
CA state listingNone  
federal listingNone  
where found
MAPS - Use v8 link below.

Topographic quads (1):
San Geronimo (484C) 3812216
quad data info

Counties, states, regions:
Marin (MRN)
A reminder: Species not recorded for a given area may nonetheless be present, especially where favorable conditions occur.
CNPS habitats•Chaparral (Chprl)(maritime)/serpentinite, rocky, sometimes clay
blooming period Mar-May  
elevation range235 - 290 meters
notes
Discovered in the 1980’s by Wilma Follette. Potentially threatened by non-native plants. Possibly threatened by insect herbivory. Similar to C. jepsonii; primarily differs from it in having 5-merous flowers that are white, light blue, or pink. See Madroņo 61(4):399-406 (2014) for original description.
full nameCeanothus decornutus V.T. Parker
Version 8    INVENTORY VERSION 8 interface for this taxon, including GIS and more links

Additional information:
standard acronym   Element Code  PDRHA04440
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 http://www.cnps.org/inventory

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