Species Details

Sphenopholis interrupta ssp. californica

prairie false oat

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Scientific Name:
Sphenopholis interrupta (Buckley) Scribn. ssp. californica (Vasey) Scribn.
Common Name:
prairie false oat
Family: Poaceae
Element Code: PMPOA69071
USDA Plants Symbol:
Synonyms/Other Names:
Lifeform: annual herb
Blooming Period: Apr
Elevation:
15 - 15 meters
50 - 50 feet
General Habitat:
  • Chaparral (coastal)
General Micro Habitat:
Micro Habitat:
  • Clay
Notes:

Discovered in CA in 2020 by M. Mulligan and J. Vinje; formerly thought to be a presumed extinct endemic to Baja CA, Mexico, where last seen in 1886. Threatened by non-native plants, development, and urbanization. See USDA Division of Botany, Bulletin 13(1): 46 (1892) for original description, and Rhodora 8(92):146 (1906) for revised nomenclature.

Threats:
Taxonomy:
Other:
Total Occurrences: 1
Element Occurrence Ranks:
A B C D X U
0 0 0 0 0 1
Occurrence Status:
Historical >20 Years 0
Recent <=20 Years 1
Presence:
Presumed Extant 1
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
San Diego (SDG)
Quads: Name (Quad Code)
San Luis Rey (3311723)
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