CNPS.ORG Inventory of Rare and Endangered Plants - 7th edition interface
v7-16sep 9-2-16
Status: record ceanothus_divergens - Sun, Oct. 23, 2016 23:20 ET c
Ceanothus divergens
common nameCalistoga ceanothus
CalPhotos image
more photos
Brother Alfred Brousseau © 1995 Saint Mary's College of California  Follow image link for photo data.
life form evergreen shrub
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
S2      ranking system key
global rank
G2     G2: 6-20 occurrences OR 1,000-3,000 individuals OR 2,000-10,000 acres
Where did the "RED" code go?
CA state listingNone  
federal listingNone  
where found
MAPS - Use v8 link below.

Topographic quads (8):
Rutherford (500B) 3812244, Kenwood (501A) 3812245, Santa Rosa (501B) 3812246, St. Helena (516C) 3812254, Mount St. Helena (517B) 3812266, Mark West Springs (517C) 3812256, Calistoga (517D) 3812255, Whispering Pines (533C) 3812276
quad data info

Counties, states, regions:
Lake (LAK), Napa (NAP), Sonoma (SON)
A reminder: Species not recorded for a given area may nonetheless be present, especially where favorable conditions occur.
CNPS habitats•Chaparral (Chprl)(serpentinite or volcanic, rocky)
blooming period Feb-Apr  
elevation range170 - 950 meters
Threatened by habitat alteration and development in The Geysers geothermal area and by fire suppression. Closely related to C. purpureus.
full nameCeanothus divergens Parry
Version 8    INVENTORY VERSION 8 interface for this taxon, including GIS and more links

Additional information:
standard acronym  CEDI Element Code  PDRHA04240
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). 2016. Inventory of Rare and Endangered Plants (online edition, v7-16sep). California Native Plant Society. Sacramento, CA. Accessed on Sun, Oct. 23, 2016 from

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