Species Details
Deinandra conjugens
Otay tarplant
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Scientific Name: Deinandra conjugens (Keck) B.G. Baldwin |
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Common Name: Otay tarplant |
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| Family: | Asteraceae | |
| Element Code: | PDAST4R070 | |
| USDA Plants Symbol: | DECO13 | |
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Synonyms/Other Names: |
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| CA Rare Plant Rank: | 1B.1 |
| Fed List: | FT (1998-10-13) |
| State List: | CE (1979-11-01) |
| Global Rank: | G1G2 |
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State Rank: |
S1 |
| Other Status: | SB_CalBG/RSABG; SB_CRES |
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CRPR Changes: |
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| Add Date: | 1974-01-01 |
| Date Edited: | 2024-08-06 |
| Lifeform: annual herb | ||||||||||||||
Blooming Period: (Apr)May-Jun
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Elevation:
25 - 300 meters 80 - 985 feet |
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General Habitats:
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| Microhabitat Details: | ||||||||||||||
Microhabitat:
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Notes: Threatened by development, agriculture, vehicles, illegal dumping, foot traffic, non-native plants, habitat disturbance, and Border Patrol activities. Possibly threatened by landfill construction. Known in BA from only one occurrence. State and federally listed as Hemizonia conjugens; see this name in The Jepson Manual. See Aliso 4(1):109 (1958) for original description, Madroño 25(3):159 (1978) for information on distribution and taxonomy, and Novon 9:462-471 (1999) for revised nomenclature. |
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Threats: |
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Taxonomy: |
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| Threat List Total: | 14 | |
| Total EOs | % of EOs | |
| EOs with Threat Listed: | 34 | 81 % |
| THREAT LIST: | ||
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| Non-native plant impacts | 25 | 59% |
| Development | 21 | 50% |
| Foot traffic/trampling | 15 | 35% |
| Road/trail construction/maint. | 15 | 35% |
| Vandalism/dumping/litter | 13 | 30% |
| ORV activity | 12 | 28% |
| Erosion/runoff | 10 | 23% |
| Wood cutting or brush clearing | 7 | 16% |
| Other | 5 | 11% |
| Improper burning regime | 3 | 7% |
| Altered flood/tidal/hydrologic regime | 2 | 4% |
| Recreational use (non-ORV) | 2 | 4% |
| Grazing | 2 | 4% |
| Non-native animal impacts | 1 | 2% |
| Total Occurrences: | 42 | ||||
| Element Occurrence Ranks: | |||||
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| A | B | C | D | X | U |
| 0 | 11 | 7 | 5 | 0 | 19 |
| Occurrence Status: | |||||
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| Historical >20 Years | 12 | ||||
| Recent <=20 Years | 30 | ||||
| Presence: | |||||
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| Presumed Extant | 42 | ||||
| Possibly Extirpated | 0 | ||||
| Presumed Extirpated | 0 | ||||
| California Endemic: | |||||||||||||
| California Island: | |||||||||||||
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States: Name (Code) Baja California (BA), California (CA) |
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California Counties and Islands: Name (Code) San Diego (SDG) |
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Quads: Name (Quad Code) Dulzura (3211667), Imperial Beach (3211751), Jamul Mountains (3211668), National City (3211761), Otay Mesa (3211658) |
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Notes:
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Presumed Extant
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