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 . 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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