Species Details
Dudleya abramsii ssp. affinis
San Bernardino Mountains dudleya
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Scientific Name: Dudleya abramsii Rose ssp. affinis K. Nakai |
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Common Name: San Bernardino Mountains dudleya |
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| Family: | Crassulaceae | |
| Element Code: | PDCRA04013 | |
| USDA Plants Symbol: | DUABA2 | |
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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_CalBG/RSABG; USFS_S |
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CRPR Changes: |
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| Add Date: | 1988-01-01 |
| Date Edited: | 2021-12-09 |
| Lifeform: perennial herb | ||||||||||||||
Blooming Period: Apr-Jul
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Elevation:
1250 - 2600 meters 4100 - 8530 feet |
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General Habitats:
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| Microhabitat Details: sometimes quartzite | ||||||||||||||
Microhabitat:
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Notes: Known only from the San Bernardino Mtns. Threatened by development, foot traffic, limestone mining, and vehicles. Possibly threatened by non-native plants and illegal dumping. See Madroño 34(4):349 (1987) for original description. |
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Threats: Threatened by development, foot traffic, limestone mining, and vehicles. Possibly threatened by non-native plants and illegal dumping. |
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Taxonomy: |
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| Threat List Total: | 11 | |
| Total EOs | % of EOs | |
| EOs with Threat Listed: | 18 | 33 % |
| THREAT LIST: | ||
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| ORV activity | 8 | 14% |
| Mining | 7 | 12% |
| Foot traffic/trampling | 5 | 9% |
| Non-native plant impacts | 3 | 5% |
| Road/trail construction/maint. | 3 | 5% |
| Vandalism/dumping/litter | 2 | 3% |
| Grazing | 2 | 3% |
| Improper burning regime | 1 | 1% |
| Other | 1 | 1% |
| Recreational use (non-ORV) | 1 | 1% |
| Development | 1 | 1% |
| Total Occurrences: | 54 | ||||
| Element Occurrence Ranks: | |||||
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| A | B | C | D | X | U |
| 0 | 7 | 1 | 0 | 0 | 46 |
| Occurrence Status: | |||||
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| Historical >20 Years | 18 | ||||
| Recent <=20 Years | 36 | ||||
| Presence: | |||||
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| Presumed Extant | 54 | ||||
| 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 Bernardino (SBD) |
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Quads: Name (Quad Code) Apple Valley South (3411742), Big Bear City (3411637), Butler Peak (3411731), Fawnskin (3411638), Lake Arrowhead (3411732), Moonridge (3411627), Onyx Peak (3411626), Rattlesnake Canyon (3411636) |
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Notes:
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Presumed Extant
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