Species Details

Horkelia marinensis

Point Reyes horkelia

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Photo by © 2017 John Doyen  max-height:128px; max-width:145px;
© 2017 John Doyen
Photo by © 2021 John Doyen  max-height:128px; max-width:145px;
© 2021 John Doyen
Photo by © 2017 John Doyen  max-height:128px; max-width:145px;
© 2017 John Doyen
Scientific Name:
Horkelia marinensis (Elmer) Crum
Common Name:
Point Reyes horkelia
Family: Rosaceae
Element Code: PDROS0W0B0
USDA Plants Symbol: HOMA3
Synonyms/Other Names:
Lifeform: perennial herb
Blooming Period: May-Sep
Elevation:
5 - 755 meters
15 - 2475 feet
General Habitat:
  • Coastal dunes
  • Coastal prairie
  • Coastal scrub
General Micro Habitat:
Micro Habitat:
  • Sandy
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.
Threats:
Taxonomy:
Other:
Total Occurrences: 36
Element Occurrence Ranks:
A B C D X U
2 9 3 3 0 19
Occurrence Status:
Historical >20 Years 20
Recent <=20 Years 16
Presence:
Presumed Extant 36
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Marin (MRN), Mendocino (MEN), Monterey (MNT), San Mateo (SMT), Santa Cruz (SCR), Sonoma (SON)
Quads: Name (Quad Code)
Ano Nuevo (3712213), Bodega Head (3812331), Davenport (3712212)?, Drakes Bay (3812218), Felton (3712211), Fort Bragg (3912347), Gualala (3812375), Hales Grove (3912377), Inglenook (3912357), Inverness (3812217), Marina (3612167), Montara Mountain (3712254), Noyo Hill (3912346), Point Bonita (3712275), San Francisco South (3712264), Santa Cruz (3612281), Tomales (3812228), Valley Ford (3812238), Westport (3912367)
Notes:
Definitions of codes following a county and/or quad:
* Presumed extirpated
(?) Occurrence confirmed, but possibly extirpated
Quad and county data is imported from the CNDDB. Species may be present in other areas where conditions are favorable. These data should NOT be substituted for pre-project review or for on-site surveys.

Map

Presumed Extant
Counties   Quads