CNPS.ORG Inventory of Rare and Endangered Plants - 7th edition interface
v7-18mar 3-19-18
Status: record arctostaphylos_morroensis - Fri, Nov. 26, 2021 19:08 ET c
Arctostaphylos morroensis
common nameMorro manzanita
CalPhotos image
more photos
Lyda Edge © 1978 CNPS  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 listingThreatened  12/15/94
where found
MAPS - Use v8 link below.

Topographic quads (2):
San Luis Obispo (246C) 3512036, Morro Bay South (247D) 3512037
quad data info

Counties, states, regions:
San Luis Obispo (SLO)
A reminder: Species not recorded for a given area may nonetheless be present, especially where favorable conditions occur.
CNPS habitats•Chaparral (Chprl)(maritime)
•Cismontane woodland (CmWld)
•Coastal dunes (CoDns)(pre-Flandrian)
•Coastal scrub (CoScr)/Baywood fine sand
blooming period Dec-Mar  
elevation range5 - 205 meters
Known from fewer than 10 occurrences in the Morro Bay area; estimated to cover less than 350 acres as of 1996. Threatened by urbanization, alteration of fire regimes, and non-native plants. See Madroņo 5(1):42 (1939) for original description.
full nameArctostaphylos morroensis Wies. & Schreib.
Version 8    INVENTORY VERSION 8 interface for this taxon, including GIS and more links

Additional information:
standard acronym  ARMO2 Element Code  PDERI040S0
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 Fri, Nov. 26, 2021 from

pick and add to Plant Pressexplain the meaning of the fieldsFIRSTPREVIOUSNEXTLASTCNPS.ORGQuestions and CommentsHOMELOGIN (you are guest anonymous)   Web Oriented Database Home