CNPS.ORG Inventory of Rare and Endangered Plants - 7th edition interface
v7-18mar 3-19-18
Status: record horkelia_marinensis - Sat, Dec. 4, 2021, 20:53 ET b
Horkelia marinensis
common namePoint Reyes horkelia
CalPhotos image
more photos
Brother Alfred Brousseau © 1995 Saint Mary's College of California  Follow image link for photo data.
life formperennial 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
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 (19):
Marina (366A) 3612167, Santa Cruz (387E) 3612281, Davenport (408C)? 3712212, Felton (408D) 3712211, Ano Nuevo (409D) 3712213, San Francisco South (448B) 3712264, Montara Mountain (448C) 3712254, Point Bonita (467D) 3712275, Tomales (485B) 3812228, Drakes Bay (485C) 3812218, Inverness (485D) 3812217, Valley Ford (502C) 3812238, Bodega Head (503D) 3812331, Saunders Reef (537C) 3812376, Gualala (537D) 3812375, Noyo Hill (568B) 3912346, Fort Bragg (569A) 3912347, Westport (585A) 3912367, Inglenook (585D) 3912357
quad data info

Counties, states, regions:
Mendocino (MEN), Monterey (MNT), Marin (MRN), Santa Cruz (SCR), 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 dunes (CoDns)
•Coastal prairie (CoPrr)
•Coastal scrub (CoScr)/sandy
blooming period May-Sep  
elevation range5 - 755 meters
Populations from near Ft. Bragg, MEN Co. may be varietally distinct. Historical occurrences need field surveys. Threatened by non-native plants and residential development. Possibly threatened by road maintenance and foot traffic. See Systematic Botany 18(1):137-144 (1993) for distributional information.
full nameHorkelia marinensis (Elmer) Crum
Version 8    INVENTORY VERSION 8 interface for this taxon, including GIS and more links

Additional information:
standard acronym  HOMA3 Element Code  PDROS0W0B0
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 Sat, Dec. 4, 2021 from

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