Species Details

Caulanthus californicus

California jewelflower

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Scientific Name:
Caulanthus californicus (Wats.) Pays.
Common Name:
California jewelflower
Family: Brassicaceae
Element Code: PDBRA31010
USDA Plants Symbol:
Synonyms/Other Names:
CA Rare Plant Rank: 1B.1
Fed List: FE (1990-07-19)
State List: CE (1987-01-01)
Global Rank: G1
State Rank:
S1
Other Status: SB_CalBG/RSABG; SB_SBBG; SB_UCBG
CRPR Changes:
Add Date: 1984-01-01
Date Edited: 2021-10-04
Lifeform: annual herb
Blooming Period: Feb-May
Elevation:
61 - 1000 meters
200 - 3280 feet
General Habitat:
  • Chenopod scrub
  • Pinyon and juniper woodland
  • Valley and foothill grassland
General Micro Habitat:
Micro Habitat:
  • Sandy
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.
Threats:
Taxonomy:
Other:
References:
Total Occurrences: 67
Element Occurrence Ranks:
A B C D X U
8 22 3 2 30 2
Occurrence Status:
Historical >20 Years 54
Recent <=20 Years 13
Presence:
Presumed Extant 37
Possibly Extirpated 12
Presumed Extirpated 18
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Fresno (FRE), Kern (KRN), Kings (KNG)*, San Luis Obispo (SLO), Santa Barbara (SBA), Tulare (TUL)*
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)
Notes:
Definitions of codes following a county and/or quad:
* Presumed extirpated
(?) Occurrence confirmed, but possibly extirpated
Quad and county data is imported from the CNDDB. Species may be present in other areas where conditions are favorable. These data should NOT be substituted for pre-project review or for on-site surveys.

Map

Presumed Extant
Counties   Quads