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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 | |
Synonyms/Other Names: |
CA Rare Plant Rank: | 1B.1 |
Fed List: | FT (1998-10-13) |
State List: | CE (1979-11-01) |
Global Rank: | G1G2 |
State Rank: |
S1 |
Other Status: | SB_CalBG/RSABG; SB_CRES |
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, MadroƱo 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: |
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: | |||||||||||||
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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