CNPS.ORG Inventory of Rare and Endangered Plants - 7th edition interface
v7-18mar 3-19-18
Status: record ceanothus_confusus - Mon, Nov. 29, 2021 01:26 ET c
Ceanothus confusus
common nameRincon Ridge ceanothus
CalPhotos image
more photos
© 2006 Barrett Jeffery  Follow image link for photo data.
life form evergreen shrub
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
G1     G1: Less than 6 occurrences OR less than 1,000 individuals OR less than 2,000 acres.
Where did the "RED" code go?
CA state listingNone  
federal listingNone  
where found
MAPS - Use v8 link below.

Topographic quads (19):
Rutherford (500B) 3812244, Sonoma (500C) 3812234, Kenwood (501A) 3812245, Santa Rosa (501B) 3812246, Sebastopol (502A)* 3812247, St. Helena (516C) 3812254, Detert Reservoir (517A) 3812265, Mount St. Helena (517B) 3812266, Mark West Springs (517C) 3812256, Calistoga (517D)?* 3812255, Geyserville (518B) 3812268, Guerneville (518C) 3812258, Warm Springs Dam (519A) 3812361, Whispering Pines (533C) 3812276, Hopland (535A) 3812381, Yorkville (535B) 3812382, Cloverdale (535D) 3812371, Bartlett Mountain (549A) 3912227, Purdys Gardens (550D) 3912311
quad data info

Counties, states, regions:
Lake (LAK), Mendocino (MEN), Napa (NAP), Sonoma (SON)
A reminder: Species not recorded for a given area may nonetheless be present, especially where favorable conditions occur.
CNPS habitats•Closed-cone coniferous forest (CCFrs)
•Chaparral (Chprl)
•Cismontane woodland (CmWld)/volcanic or serpentinite
blooming period Feb-Jun  
elevation range75 - 1065 meters
Threatened by development. Closely related to C. prostratus. See Leaflets of Western Botany 2:160-162 (1939) for original description.
full nameCeanothus confusus J.T. Howell
Version 8    INVENTORY VERSION 8 interface for this taxon, including GIS and more links

Additional information:
standard acronym  CECO6 Element Code  PDRHA04220
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 Mon, Nov. 29, 2021 from

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