Taxon Report
Sphenopholis interrupta (Buckley) Scribn. ssp. californica (Vasey) Scribn.prairie false oat |
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Classification
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Scientific Name: |
Sphenopholis interrupta (Buckley) Scribn. ssp. californica (Vasey) Scribn. |
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Common Name: |
prairie false oat |
| Family: | Poaceae |
| Element Code: | PMPOA69071 |
| USDA Plants Symbol: | |
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Synonyms/Other Names: |
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Ecology and Life History
| Lifeform: | annual herb |
| Blooming Period: Apr | Apr |
| Elevation: | 15-15 (50-50) |
| General Habitats: | Chaparral |
| Microhabitat: | Clay |
| Microhabitat Details: |
Conservation Status
| CA Rare Plant Rank: | 1B.1 |
| Global Rank: | G4T1 |
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State Rank: |
S1 |
| State List: | None |
| Fed List: | None |
| Other Status: | |
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CRPR Changes: |
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Occurrence Data from the CNDDB
| Total Occurrences: | 1 |
| Element Occurrence Ranks: | |
| Excellent (A) | 0 |
| Good (B) | 0 |
| Fair (C) | 0 |
| Poor (D) | 0 |
| None (X) | 0 |
| Unknown (U) | 1 |
| California Endemic: False | |
| California Counties and Islands: Name (Code) | |
| San Diego (SDG) | |
| Quads: Name (Quad Code) | |
| San Luis Rey (3311723) | |
Threat List Data from the CNDDB
| Threat List Total: | 4 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 1 | 100 % | |
| Agriculture | 1 | 100% |
| Insufficient population/stand size | 1 | 100% |
| Non-native plant impacts | 1 | 100% |
| Other | 1 | 100% |
Notes
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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: |
Selected References
| CRPR List Addition on 2020-09-03 |
Citation
California Native Plant Society, Rare Plant Program. 2024. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 25 December 2024].