Taxon Report

Caulanthus amplexicaulis Wats. var. barbarae (J.T. Howell) Munz

Santa Barbara jewelflower

Print Report


© 2017 John B Moule

  Classification

Scientific Name:
Caulanthus amplexicaulis Wats. var. barbarae (J.T. Howell) Munz
Common Name:
Santa Barbara jewelflower
Family: Brassicaceae
Element Code: PDBRA0M012
USDA Plants Symbol: CAAMB
Synonyms/Other Names:

Ecology and Life History

Lifeform: annual herb
Blooming Period: May-Jul May-Jul
Elevation: 470-1220 (1540-4005)
General Habitats: Chaparral, Cismontane woodland, Closed-cone coniferous forest
Microhabitat: Serpentine
Microhabitat Details:

Occurrence Data from the CNDDB

Total Occurrences: 11
Element Occurrence Ranks:
   Excellent (A) 0
   Good (B) 1
   Fair (C) 0
   Poor (D) 0
   None (X) 0
   Unknown (U) 10
California Endemic:  True
California Counties and Islands: Name (Code)
Santa Barbara (SBA)
Quads: Name (Quad Code)
Bald Mountain (3411978), Figueroa Mtn. (3411968), Los Olivos (3412061), Zaca Lake (3412071)

Threat List Data from the CNDDB

Threat List Total: 2
EOs with Threat Listed: Total EOs % of EOs
1 9 %
Erosion/runoff 1 9%
Grazing 1 9%

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.
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.
Taxonomy:

Selected References

Proposed Deletion from CRPR 1B.1 (2011)
Citation California Native Plant Society, Rare Plant Program. 2024. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 25 December 2024].