Species Details
Dudleya multicaulis
many-stemmed dudleya
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Scientific Name: Dudleya multicaulis (Rose) Moran |
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Common Name: many-stemmed dudleya |
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| Family: | Crassulaceae | |
| Element Code: | PDCRA040H0 | |
| USDA Plants Symbol: | DUMU | |
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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: | G2 |
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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: | 1974-01-01 |
| Date Edited: | 2024-11-05 |
| Lifeform: perennial herb | ||||||||||||||
Blooming Period: Apr-Jul
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Elevation:
15 - 790 meters 50 - 2590 feet |
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General Habitats:
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| Microhabitat Details: | ||||||||||||||
Microhabitat:
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Notes: Occurrence on 49B needs verification; exact location and identification uncertain. Seriously threatened by development, road construction and maintenance, fire suppression, non-native plants, mining, grazing, and recreation. Possibly threatened by military activities See Bulletin of the New York Botanical Garden 3:38 (1903) for original description, and Madroño 45(3):215-220 (1998) and 57(1):42-53 (2010) for population ecology information. |
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Threats: |
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Taxonomy: |
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| Threat List Total: | 17 | |
| Total EOs | % of EOs | |
| EOs with Threat Listed: | 83 | 54 % |
| THREAT LIST: | ||
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| Development | 56 | 36% |
| Road/trail construction/maint. | 42 | 27% |
| Grazing | 15 | 9% |
| Foot traffic/trampling | 14 | 9% |
| Non-native plant impacts | 10 | 6% |
| Recreational use (non-ORV) | 8 | 5% |
| Landfill | 7 | 4% |
| Military operations | 5 | 3% |
| Other | 5 | 3% |
| Mining | 3 | 1% |
| Disking | 3 | 1% |
| Erosion/runoff | 2 | 1% |
| Improper burning regime | 2 | 1% |
| ORV activity | 2 | 1% |
| Vandalism/dumping/litter | 2 | 1% |
| Wood cutting or brush clearing | 1 | 0% |
| Agriculture | 1 | 0% |
| Total Occurrences: | 154 | ||||
| Element Occurrence Ranks: | |||||
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| A | B | C | D | X | U |
| 8 | 21 | 4 | 4 | 12 | 105 |
| Occurrence Status: | |||||
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| Historical >20 Years | 103 | ||||
| Recent <=20 Years | 51 | ||||
| Presence: | |||||
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| Presumed Extant | 142 | ||||
| Possibly Extirpated | 5 | ||||
| Presumed Extirpated | 7 | ||||
| California Endemic: | |||||||||||||
| California Island: | |||||||||||||
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States: Name (Code) California (CA) |
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California Counties and Islands: Name (Code) Los Angeles (LAX), Orange (ORA), Riverside (RIV), San Bernardino (SBD), San Diego (SDG) |
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Quads: Name (Quad Code) Alberhill (3311764), Azusa (3411728), Baldwin Park (3411718), Black Star Canyon (3311776), Burbank (3411823), Calabasas (3411826), Canada Gobernadora (3311755), Corona North (3311785), Corona South (3311775), El Monte (3411811), El Toro (3311766), Fallbrook (3311743), Glendora (3411727), Hollywood (3411813), La Habra (3311788)*, Laguna Beach (3311757), Lake Elsinore (3311763), Lake Mathews (3311774), Las Pulgas Canyon (3311734), Margarita Peak (3311744), Morro Hill (3311733), Mt. Baldy (3411726), Newport Beach (3311768)*, Orange (3311777), Prado Dam (3311786)*, Sage (3311658), San Clemente (3311745), San Dimas (3411717), San Juan Capistrano (3311756), San Onofre Bluff (3311735), Sitton Peak (3311754), Tustin (3311767), Vail Lake (3311648)?, Whittier (3311881) |
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Notes:
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Presumed Extant
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