Taxon Details
Caulanthus californicus
California jewelflower
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Taxon Summary:
Caulanthus californicus, commonly known as California jewelflower, is a annual herb in the Brassicaceae that is found only in California. It occurs within Chenopod scrub, Pinyon and juniper woodland, and Valley and foothill grassland, growing at elevations from 61 to 1000 meters. Caulanthus californicus is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.|
Scientific Name: Caulanthus californicus (Wats.) Pays. |
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Common Name: California jewelflower |
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| Family: | Brassicaceae | |
| Element Code: | PDBRA31010 | |
| USDA Plants Symbol: | ||
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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: | FE (1990-07-19) |
| State List: | CE (1987-01-01) |
| Global Rank: | G1 |
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State Rank: |
S1 |
| Other Status: | SB_CalBG/RSABG; SB_SBBG; SB_UCBG |
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CRPR Changes: |
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| Add Date: | 1984-01-01 |
| Date Edited: | 2021-10-04 |
| Lifeform: annual herb | ||||||||||||||
Blooming Period: Feb-May
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Elevation:
61 - 1000 meters 200 - 3280 feet |
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General Habitats:
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| Microhabitat Details: | ||||||||||||||
Microhabitat:
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Notes: Over 35 historical occurrences extirpated; new populations recently discovered. Threatened by agriculture, urbanization, energy development, and grazing, and possibly by non-native plants. Experimental reintroductions have occurred in KRN, SBA, and TUL counties, but all have failed. See Fremontia 16(1):18-19 (1988) for species account. |
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Threats: |
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Taxonomy: |
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| Threat List Total: | 7 | |
| Total EOs | % of EOs | |
| EOs with Threat Listed: | 52 | 78 % |
| THREAT LIST: | ||
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| Agriculture | 26 | 38% |
| Grazing | 24 | 35% |
| Development | 11 | 16% |
| Other | 6 | 8% |
| Non-native plant impacts | 3 | 4% |
| Mining | 2 | 2% |
| Insufficient population/stand size | 1 | 1% |
| Total Occurrences: | 67 | ||||
| Element Occurrence Ranks: | |||||
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| A | B | C | D | X | U |
| 8 | 22 | 3 | 2 | 30 | 2 |
| Occurrence Status: | |||||
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| Historical >20 Years | 54 | ||||
| Recent <=20 Years | 13 | ||||
| Presence: | |||||
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| Presumed Extant | 37 | ||||
| Possibly Extirpated | 12 | ||||
| Presumed Extirpated | 18 | ||||
| California Endemic: | |||||||||||||
| California Island: | |||||||||||||
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States: Name (Code) California (CA) |
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California Counties and Islands: Name (Code) Fresno (FRE), Kern (KRN), Kings (KNG)*, San Luis Obispo (SLO), Santa Barbara (SBA), Tulare (TUL)* |
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Quads: Name (Quad Code) Antelope Plain (3511967), Arvin (3511827)*, Avenal (3612012)*, Ballinger Canyon (3411984)*, Belridge (3511946)*, Clovis (3611976), Coalinga (3612023)*, Curry Mountain (3612014)*, Cuyama (3411985), Cuyama Peak (3411974)*, Delano East (3511972)*, Delano West (3511973)*, Edison (3511837)*, Elkhorn Hills (3511915), Emigrant Hill (3511968)*, Fox Mountain (3411975), Fresno North (3611977)?*, Fresno South (3611967), Garza Peak (3512082)*, Huron (3612021)*, Kreyenhagen Hills (3612013), La Panza (3512032), La Panza Ranch (3512042), Lost Hills (3511956)*, Lost Hills NE (3511965), Malaga (3611966), Mouth of Kern (3511923), New Cuyama (3411986)*, Painted Rock (3511927)*, Pine Mountain (3511857)*, Pyramid Hills (3512071)*, Richgrove (3511971)*, Rio Bravo Ranch (3511847)*, Rosedale (3511942)*, Sausalito School (3511982)*, Semitropic (3511955), Stevens (3511932), Taft (3511924)*, Tejon Ranch (3511816), Tent Hills (3512072), Tulare (3611923)*, Wells Ranch (3511916) |
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Notes:
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Presumed Extant
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