Species Details
Camissonia benitensis
San Benito evening-primrose
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Species Description:
Camissonia benitensis, commonly known as San Benito evening-primrose, is a annual herb in the Onagraceae that is found only in California. It occurs within Chaparral, Cismontane woodland, and Valley and foothill grassland, growing at elevations from 600 to 1280 meters. Camissonia benitensis is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.
Scientific Name: Camissonia benitensis Raven |
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Common Name: San Benito evening-primrose |
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Family: | Onagraceae | |
Element Code: | PDONA03030 | |
USDA Plants Symbol: | CABE7 | |
Synonyms/Other Names: |
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Name Status: |
JEP, FNA, POWO, IPNI, Tropicos |
CA Rare Plant Rank: | 1B.1 |
Fed List: | FD (2022-03-07) |
State List: | None |
Global Rank: | G2 |
State Rank: |
S2 |
Other Status: | BLM_S; SB_SBBG; SB_UCBG |
CRPR Changes: |
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Add Date: | 1974-01-01 |
Date Edited: | 2024-11-05 |
Lifeform: annual herb | ||||||||||||||
Blooming Period: Apr-Jun
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Elevation:
600 - 1280 meters 1970 - 4200 feet |
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General Habitats:
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Microhabitat Details: serpentinite alluvium | ||||||||||||||
Microhabitat:
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Notes: Federally listed on 1985-02-12; Delisted due to Recovery on 2022-03-07. Known only from the New Idria area. Previously seriously threatened by vehicles. Protected in part at ACEC (BLM). See Contributions from the U.S. National Herbarium 37(5):332 (1969) for original description. |
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Threats: |
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Taxonomy: |
Threat List Total: | 8 | |
Total EOs | % of EOs | |
EOs with Threat Listed: | 14 | 23 % |
THREAT LIST: | ||
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ORV activity | 11 | 18% |
Recreational use (non-ORV) | 5 | 8% |
Other | 4 | 6% |
Grazing | 4 | 6% |
Non-native plant impacts | 3 | 5% |
Altered flood/tidal/hydrologic regime | 3 | 5% |
Road/trail construction/maint. | 3 | 5% |
Development | 1 | 1% |
Total Occurrences: | 60 | ||||
Element Occurrence Ranks: | |||||
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A | B | C | D | X | U |
4 | 5 | 1 | 1 | 0 | 49 |
Occurrence Status: | |||||
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Historical >20 Years | 0 | ||||
Recent <=20 Years | 60 |
Presence: | |||||
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Presumed Extant | 60 | ||||
Possibly Extirpated | 0 | ||||
Presumed Extirpated | 0 |
California Endemic: | |||||||||||||
California Island: | |||||||||||||
States: Name (Code) California (CA) |
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California Counties and Islands: Name (Code) Fresno (FRE), Monterey (MNT), San Benito (SBT) |
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Quads: Name (Quad Code) Hepsedam Peak (3612037), Hernandez Reservoir (3612047), Idria (3612046), Lonoak (3612038), Priest Valley (3612026), Rock Spring Peak (3612048), San Benito Mtn. (3612036), Santa Rita Peak (3612035) |
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Notes:
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Presumed Extant
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