Species Details
Ceanothus roderickii
Pine Hill ceanothus
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Scientific Name: Ceanothus roderickii Knight |
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Common Name: Pine Hill ceanothus |
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| Family: | Rhamnaceae | |
| Element Code: | PDRHA04190 | |
| USDA Plants Symbol: | CERO4 | |
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Synonyms/Other Names: |
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| CA Rare Plant Rank: | 1B.1 |
| Fed List: | FE (1996-10-18) |
| State List: | CR (1982-07-01) |
| Global Rank: | G1 |
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State Rank: |
S1 |
| Other Status: | SB_CalBG/RSABG; SB_SBBG |
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CRPR Changes: changed from 1B.2 to 1B.1 on 2014-01-30 |
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| Add Date: | 1974-01-01 |
| Date Edited: | 2021-10-04 |
| Lifeform: perennial evergreen shrub | ||||||||||||||
Blooming Period: Apr-Jun
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Elevation:
245 - 1090 meters 805 - 3575 feet |
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General Habitats:
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| Microhabitat Details: nutrient-deficient forms of gabbro-derived soils characterized by low concentrations of available K, P, S, Fe, and Zn | ||||||||||||||
Microhabitat:
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Notes: Threatened by residential development, road widening, vehicles, illegal dumping, and alteration of fire regimes. Possibly threatened by herbivores and non-native plants. See Four Seasons 2(4):23-24 (1968) for original description, Madroño 54(1): 13-21 (2007) for information on the effect of fire on the species, and Madroño 58(1):1-21 (2011) for information on the edaphic ecology and genetics on the species. |
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Threats: |
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Taxonomy: |
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| Threat List Total: | 9 | |
| Total EOs | % of EOs | |
| EOs with Threat Listed: | 6 | 67 % |
| THREAT LIST: | ||
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| Development | 6 | 66% |
| Road/trail construction/maint. | 4 | 44% |
| Erosion/runoff | 3 | 33% |
| Non-native plant impacts | 3 | 33% |
| ORV activity | 2 | 22% |
| Vandalism/dumping/litter | 2 | 22% |
| Wood cutting or brush clearing | 1 | 11% |
| Recreational use (non-ORV) | 1 | 11% |
| Improper burning regime | 1 | 11% |
| Total Occurrences: | 9 | ||||
| Element Occurrence Ranks: | |||||
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| A | B | C | D | X | U |
| 1 | 2 | 2 | 0 | 0 | 4 |
| Occurrence Status: | |||||
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| Historical >20 Years | 3 | ||||
| Recent <=20 Years | 6 | ||||
| Presence: | |||||
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| Presumed Extant | 9 | ||||
| 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) El Dorado (ELD) |
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Quads: Name (Quad Code) Clarksville (3812161), Pilot Hill (3812171), Shingle Springs (3812068) |
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Notes:
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Presumed Extant
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