CNPS Inventory Plant Detail

Horkelia marinensis

Common Name:	Point Reyes horkelia
Family:	Rosaceae
Synonyms:
Element Code:	PDROS0W0B0
Full Name:	Horkelia marinensis (Elmer) Crum
USDA PLANTS Symbol:	HOMA3

Biology
Lifeform: perennial herb Blooming Period: May - September Habitat: sandy. • Coastal dunes • Coastal prairie • Coastal scrub

Rarity Status
CA Rare Plant Rank: 1B.2 Rare, threatened, or endangered in California and elsewhere .2: Fairly endangered in California Federal Listing Status: Not Listed State Listing Status: Not Listed State Rank: S2.2 S2: Imperiled. .2: Threatened. Global Rank: G2 G2: Imperiled.

Occurrence Data from DFG
California Natural Diversity Database

Total # of Known Element Occurrences: 26
Element Occurrence Ranks:

A B C D X U

2 8 3 0 0 13

Population Status:

Historic >20 yrs	Recent <=20 yrs
11	15

Presence:

Present Extant	Possibly Extirpated	Extirpated
26	0	0

Notes

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.
To submit rare plant observation data, use the CNDDB field survey form. Please see also the CNPS Rare Plant Data page.
Date Added: 1974-01-01
Last Update: 2011-10-06

Location

Elevation: 5 - 350 meters

California Endemic: yes

States: California

California Counties and Islands: name (code)
Mendocino (MEN), Marin (MRN), Santa Cruz (SCR), San Mateo (SMT), Sonoma (SON)

Quads: name (DWR code) USGS code
Santa Cruz (387E) 36122H1, Davenport (408C)? 37122A2, Felton (408D) 37122A1, Ano Nuevo (409D) 37122A3, Montara Mountain (448C) 37122E4, Tomales (485B) 38122B8, Drakes Bay (485C) 38122A8, Inverness (485D) 38122A7, Valley Ford (502C) 38122C8, Bodega Head (503D) 38123C1, Saunders Reef (537C) 38123G6, Gualala (537D) 38123G5, Noyo Hill (568B) 39123D6, Fort Bragg (569A) 39123D7, Westport (585A) 39123F7, Inglenook (585D) 39123E7

Notes:

Definitions of codes preceding a county and/or quad:
*		Presumed extirpated
?		Uncertain about distribution or identity
?*		Uncertain about distribution, but presumed extirpated if once present
(?)		Occurrence confirmed, but possibly extirpated

Species may be present in other areas where conditions are favorable.

Presumed Extant

Presumed Extirpated or Unknown

913

Links to Leading Resources of Taxon Information
USDA PLANTS Calflora CalPhotos Consortium of California Herbaria California Department of Fish and Game: CNDDB Quick Viewer

Suggested Citation
California Native Plant Society (CNPS). Inventory of Rare and Endangered Plants (online edition, v8-01a). California Native Plant Society. Sacramento, CA. Accessed on .

-123.0,38.25