Taxon Details
Caulanthus amplexicaulis var. barbarae
Santa Barbara jewelflower
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© 2017 John B Moule |
© 2017 John B Moule |
© 2017 John B Moule |
Taxon Summary:
Caulanthus amplexicaulis var. barbarae, commonly known as Santa Barbara jewelflower, is a annual herb in the Brassicaceae that is found only in California. It occurs within Chaparral, Cismontane woodland, and Closed-cone coniferous forest, growing at elevations from 470 to 1220 meters. Caulanthus amplexicaulis var. barbarae is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.|
Scientific Name: Caulanthus amplexicaulis Wats. var. barbarae (J.T. Howell) Munz |
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Common Name: Santa Barbara jewelflower |
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| Family: | Brassicaceae | |
| Element Code: | PDBRA0M012 | |
| USDA Plants Symbol: | CAAMB | |
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Synonyms/Other Names: |
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| Name Status: |
JEF, FNA, POWO, IPNI, Tropicos |
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| CA Rare Plant Rank: | 1B.1 |
| Fed List: | None |
| State List: | None |
| Global Rank: | G4T2 |
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State Rank: |
S2 |
| Other Status: | USFS_S |
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CRPR Changes: removed from 1B.1 on 2011-07-26 |
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| Add Date: | 1974-01-01 |
| Date Edited: | 2025-10-29 |
| Lifeform: annual herb | ||||||||||||||
Blooming Period: May-Jul
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Elevation:
470 - 1220 meters 1540 - 4005 feet |
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General Habitats:
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| Microhabitat Details: | ||||||||||||||
Microhabitat:
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Notes: Known from fewer than 5 occurrences in the San Rafael Mtns. Not in TJM 2. See Leaflets of Western Botany 9:223 (1962) for original description. |
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Threats: Potentially threatened by road construction and maintenance, fire suppression, non-native plants, vehicles, mining, and grazing. Possibly threatened by foot traffic and recreational activities. |
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Taxonomy: |
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| Threat List Total: | 2 | |
| Total EOs | % of EOs | |
| EOs with Threat Listed: | 1 | 9 % |
| THREAT LIST: | ||
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| Erosion/runoff | 1 | 9% |
| Grazing | 1 | 9% |
| Total Occurrences: | 11 | ||||
| Element Occurrence Ranks: | |||||
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| A | B | C | D | X | U |
| 0 | 1 | 0 | 0 | 0 | 10 |
| Occurrence Status: | |||||
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| Historical >20 Years | 5 | ||||
| Recent <=20 Years | 6 | ||||
| Presence: | |||||
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| Presumed Extant | 11 | ||||
| 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) Santa Barbara (SBA) |
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Quads: Name (Quad Code) Bald Mountain (3411978), Figueroa Mtn. (3411968), Los Olivos (3412061), Zaca Lake (3412071) |
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Notes:
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Presumed Extant
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