Taxon Details
Sphenopholis interrupta ssp. californica
prairie false oat
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Taxon Summary:
Sphenopholis interrupta ssp. californica, commonly known as prairie false oat, is a annual herb in the Poaceae that is found only in California. It occurs within Chaparral, growing at elevations from 15 to 15 meters. Sphenopholis interrupta ssp. californica is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.|
Scientific Name: Sphenopholis interrupta (Buckley) Scribn. ssp. californica (Vasey) Scribn. |
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Common Name: prairie false oat |
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| Family: | Poaceae | |
| Element Code: | PMPOA69071 | |
| USDA Plants Symbol: | ||
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Synonyms/Other Names: |
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| Name Status: |
JEF, FNA, POWO, IPNI, Tropicos |
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| CA Rare Plant Rank: | 1B.1 |
| Fed List: | None |
| State List: | None |
| Global Rank: | G4T1 |
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State Rank: |
S1 |
| Other Status: | |
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CRPR Changes: added to 1B.1 on 2020-09-03 |
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| Add Date: | 2020-09-03 |
| Date Edited: | 2022-08-02 |
| Lifeform: annual herb | ||||||||||||||
Blooming Period: Apr
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Elevation:
15 - 15 meters 50 - 50 feet |
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General Habitats:
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| Microhabitat Details: | ||||||||||||||
Microhabitat:
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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. |
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Threats: |
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Taxonomy: |
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| Threat List Total: | 4 | |
| Total EOs | % of EOs | |
| EOs with Threat Listed: | 1 | 100 % |
| THREAT LIST: | ||
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| Agriculture | 1 | 100% |
| Insufficient population/stand size | 1 | 100% |
| Non-native plant impacts | 1 | 100% |
| Other | 1 | 100% |
| Total Occurrences: | 1 | ||||
| Element Occurrence Ranks: | |||||
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| A | B | C | D | X | U |
| 0 | 0 | 0 | 0 | 0 | 1 |
| Occurrence Status: | |||||
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| Historical >20 Years | 0 | ||||
| Recent <=20 Years | 1 | ||||
| Presence: | |||||
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| Presumed Extant | 1 | ||||
| Possibly Extirpated | 0 | ||||
| Presumed Extirpated | 0 | ||||
| California Endemic: | |||||||||||||
| California Island: | |||||||||||||
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States: Name (Code) California (CA) |
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California Counties and Islands: Name (Code) San Diego (SDG) |
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Quads: Name (Quad Code) San Luis Rey (3311723) |
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Notes:
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Presumed Extant
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