Species Details
Panicum acuminatum var. thermale
Geysers panicum
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© Rick York and CNPS |
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Scientific Name: Panicum acuminatum Sw. var. thermale (Bol.) Wipff |
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Common Name: Geysers panicum |
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| Family: | Poaceae | |
| Element Code: | PMPOA24028 | |
| USDA Plants Symbol: | ||
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Synonyms/Other Names: |
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| CA Rare Plant Rank: | 1B.2 |
| Fed List: | None |
| State List: | CE (1978-09-01) |
| Global Rank: | G5T2Q |
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State Rank: |
S2 |
| Other Status: | BLM_S; SB_UCSC |
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CRPR Changes: changed from 1B.1 to 1B.2 on 2012-09-12 |
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| Add Date: | 1974-01-01 |
| Date Edited: | 2024-11-05 |
| Lifeform: annual/perennial herb | ||||||||||||||
Blooming Period: Jun-Aug
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Elevation:
305 - 2470 meters 1000 - 8105 feet |
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General Habitats:
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| Microhabitat Details: geothermally-altered soil | ||||||||||||||
Microhabitat:
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Notes: Known only from The Geysers and Lassen Volcanic NP geothermal areas. Does plant occur on Mt. Shasta (SIS Co.)? Plants from Blaney Meadows (FRE Co.) need verification. Threatened by non-native plants. A synonym of Panicum acuminatum var. acuminatum in TJM (1993). See Proceedings of the California Academy of Sciences 2:181 (1862) for original description, Madroño 23(3):151 (1975) for taxonomic treatment, and Proceedings of the CNPS Conservation Conference, pp. 256-263 (2009) for information on population dynamics and monitoring. |
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Threats: |
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Taxonomy: |
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| Threat List Total: | 7 | |
| Total EOs | % of EOs | |
| EOs with Threat Listed: | 4 | 36 % |
| THREAT LIST: | ||
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| Mining | 4 | 36% |
| Development | 4 | 36% |
| Erosion/runoff | 4 | 36% |
| Non-native plant impacts | 3 | 27% |
| Other | 2 | 18% |
| Road/trail construction/maint. | 1 | 9% |
| Feral pigs | 1 | 9% |
| Total Occurrences: | 11 | ||||
| Element Occurrence Ranks: | |||||
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| A | B | C | D | X | U |
| 1 | 3 | 0 | 0 | 1 | 6 |
| Occurrence Status: | |||||
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| Historical >20 Years | 7 | ||||
| Recent <=20 Years | 4 | ||||
| Presence: | |||||
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| Presumed Extant | 10 | ||||
| Possibly Extirpated | 1 | ||||
| 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) Lake (LAK), Plumas (PLU), Shasta (SHA), Sonoma (SON), Tehama (TEH) |
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Quads: Name (Quad Code) Lassen Peak (4012145), Reading Peak (4012144), The Geysers (3812277), Whispering Pines (3812276) |
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Notes:
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Presumed Extant
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| CNPS Status Review: | CRPR List Change on 2012-09-12 |