Taxon Report

Caulanthus major (Jones) Pays. var. nevadensis Roll.

slender jewelflower

Print Report

Taxon Summary

Caulanthus major var. nevadensis, commonly known as slender jewelflower, is a perennial herb in the Brassicaceae that is found in California and elsewhere. It occurs within Pinyon and juniper woodland, growing at elevations from 1705 to 2895 meters. Caulanthus major var. nevadensis is ranked 4.3, Plants of Limited Distribution, A Watch List; Not very threatened in California.

Classification


Scientific Name:	Caulanthus major (Jones) Pays. var. nevadensis Roll.
Common Name:	slender jewelflower
Family:	Brassicaceae
Element Code:	PDBRA0M0F1
USDA Plants Symbol:	CAMAN
Synonyms/Other Names:

Ecology and Life History


Lifeform:	perennial herb
Blooming Period: Jun-Sep	Jun-Sep
Elevation:	1705-2895 (5595-9500)
General Habitats:	Pinyon and juniper woodland
Microhabitat:
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	4.3
Global Rank:	G4T3?
State Rank:	S3?
State List:	None
Fed List:	None
Other Status:
CRPR Changes:	changed from 4.3 to 4.3 on 2013-02-28

Occurrence Data from the CNDDB


Total Occurrences:	0
Element Occurrence Ranks:
Excellent (A)	0
Good (B)	0
Fair (C)	0
Poor (D)	0
None (X)	0
Unknown (U)	0

Location


California Endemic: False
California Counties and Islands: Name (Code)
Alpine (ALP), Lassen (LAS)
Quads: Name (Quad Code)
Buckhorn Canyon (4012071), Doyle (4012011), Fredonyer Peak (4012065), Heenan Lake (3811966), Observation Peak (4012072), Shaffer Mtn. (4012043), Shinn Mtn. (4012062), Spalding Tract (4012067)

Threat List Data from the CNDDB


Threat List Total:	0
EOs with Threat Listed:	Total EOs	% of EOs
	0	0 %

Notes



Candidate for state listing in OR. Allopatric with C. major var. major. A synonym of C. major in TJM 2 . See The Cruciferae of Continental North America: Systematics of the Mustard Family from the Arctic to Panama (1993) by R.C. Rollins for original description.
Threats:

Taxonomy:

Selected References

Proposal to Keep at Rank 4.3, G4T3? / S3.3 (2013)

Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 27 October 2025].