Species Details
Packera eurycephala var. lewisrosei
Lewis Rose's ragwort
Download Report Calflora eFlora CCH CalPhotos
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Scientific Name: Packera eurycephala (Torr. & A. Gray) W.A. Weber & A. Love var. lewisrosei (J.T. Howell) J.F. Bain |
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Common Name: Lewis Rose's ragwort |
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| Family: | Asteraceae | |
| Element Code: | PDAST8H182 | |
| USDA Plants Symbol: | PAEUL | |
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Synonyms/Other Names: |
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| CA Rare Plant Rank: | 1B.2 |
| Fed List: | None |
| State List: | None |
| Global Rank: | G4T2 |
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State Rank: |
S2 |
| Other Status: | BLM_S; SB_UCSC; USFS_S |
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CRPR Changes: |
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| Add Date: | 1984-01-01 |
| Date Edited: | 2022-12-06 |
| Lifeform: perennial herb | ||||||||||||||
Blooming Period: Mar-Jul(Aug-Sep)
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Elevation:
274 - 1890 meters 900 - 6200 feet |
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General Habitats:
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| Microhabitat Details: | ||||||||||||||
Microhabitat:
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Notes: Threatened by mining, road maintenance, and vehicles. Taxonomic study needed. See Senecio eurycephalus var. lewisrosei in The Jepson Manual (1993). See Leaflets of Western Botany 3(6):141-142 (1942) for original description. See Phytologia 49(1): 44-50 (1981) for revised nomenclature. |
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Threats: |
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Taxonomy: |
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| Threat List Total: | 12 | |
| Total EOs | % of EOs | |
| EOs with Threat Listed: | 23 | 59 % |
| THREAT LIST: | ||
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| Road/trail construction/maint. | 17 | 43% |
| Logging | 11 | 28% |
| ORV activity | 6 | 15% |
| Other | 6 | 15% |
| Mining | 4 | 10% |
| Recreational use (non-ORV) | 3 | 7% |
| Vandalism/dumping/litter | 2 | 5% |
| Non-native plant impacts | 2 | 5% |
| Erosion/runoff | 2 | 5% |
| Grazing | 1 | 2% |
| Improper burning regime | 1 | 2% |
| Disking | 1 | 2% |
| Total Occurrences: | 39 | ||||
| Element Occurrence Ranks: | |||||
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| A | B | C | D | X | U |
| 3 | 19 | 2 | 0 | 0 | 15 |
| Occurrence Status: | |||||
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| Historical >20 Years | 15 | ||||
| Recent <=20 Years | 24 | ||||
| Presence: | |||||
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| Presumed Extant | 39 | ||||
| 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) Butte (BUT), Plumas (PLU) |
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Quads: Name (Quad Code) Belden (4012113), Berry Creek (3912164), Caribou (4012112), Cherokee (3912165), Jonesville (4012114), Paradise East (3912175), Pulga (3912174) |
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Notes:
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Presumed Extant
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