Species Details

Arctostaphylos osoensis

Oso manzanita

  Download Report   Calflora     eFlora     CCH     CalPhotos
No Photo Available
Scientific Name:
Arctostaphylos osoensis Wells
Common Name:
Oso manzanita
Family: Ericaceae
Element Code: PDERI042S0
USDA Plants Symbol: AROS
Synonyms/Other Names:
Lifeform: perennial evergreen shrub
Blooming Period: Feb-Mar
Elevation:
95 - 500 meters
310 - 1640 feet
General Habitat:
  • Chaparral
  • Cismontane woodland
General Micro Habitat: dacite porphyry buttes
Micro Habitat:
Notes:
Known only from two occurrences in the mountains north of Los Osos Valley. Threatened by urbanization. See Four Seasons 9(2):45 (1992) for original description.
Threats:
Taxonomy:
Other:
Total Occurrences: 11
Element Occurrence Ranks:
A B C D X U
1 0 0 0 0 10
Occurrence Status:
Historical >20 Years 3
Recent <=20 Years 8
Presence:
Presumed Extant 11
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
San Luis Obispo (SLO)
Quads: Name (Quad Code)
Morro Bay South (3512037), San Luis Obispo (3512036)
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