Species Details

Arctostaphylos virgata

Marin manzanita

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Scientific Name:
Arctostaphylos virgata Eastw.
Common Name:
Marin manzanita
Family: Ericaceae
Element Code: PDERI041K0
USDA Plants Symbol: ARVI3
Synonyms/Other Names:
Lifeform: perennial evergreen shrub
Blooming Period: Jan-Mar
Elevation:
60 - 700 meters
195 - 2295 feet
General Habitat:
  • Broadleafed upland forest
  • Closed-cone coniferous forest
  • Chaparral
  • North Coast coniferous forest
General Micro Habitat:
Micro Habitat:
  • Granitic (sometimes)
  • Sandstone (sometimes)
Notes:
Known from approximately twenty occurrences. Threatened by fire suppression. See Trees and Shrubs 1:203 (1905) for original description.
Threats:
Taxonomy:
Other:
References:
Total Occurrences: 32
Element Occurrence Ranks:
A B C D X U
1 4 3 2 0 22
Occurrence Status:
Historical >20 Years 18
Recent <=20 Years 14
Presence:
Presumed Extant 32
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Marin (MRN)
Quads: Name (Quad Code)
Bolinas (3712286), Double Point (3712287), Drakes Bay (3812218), Inverness (3812217), San Geronimo (3812216), San Rafael (3712285), Tomales (3812228)
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