Taxon Report

Streptanthus medeirosii N.Jensen

Tejon jewelflower

Print Report

Taxon Summary

Streptanthus medeirosii, commonly known as Tejon jewelflower, is a perennial herb in the Brassicaceae that is found only in California. It occurs within Cismontane woodland, growing at elevations from 1360 to 1880 meters. Streptanthus medeirosii is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.

Classification


Scientific Name:	Streptanthus medeirosii N.Jensen
Common Name:	Tejon jewelflower
Family:	Brassicaceae
Element Code:	PDBRA2G530
USDA Plants Symbol:
Synonyms/Other Names:

Ecology and Life History


Lifeform:	perennial herb
Blooming Period: Jun-Sep	Jun-Sep
Elevation:	1360-1880 (4460-6170)
General Habitats:	Cismontane woodland
Microhabitat:	Carbonate, Granitic
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	1B.1
Global Rank:	G1
State Rank:	S1
State List:	None
Fed List:	None
Other Status:
CRPR Changes:	added to 1B.1 on 2020-11-05

Occurrence Data from the CNDDB


Total Occurrences:	3
Element Occurrence Ranks:
Excellent (A)	0
Good (B)	0
Fair (C)	0
Poor (D)	0
None (X)	0
Unknown (U)	3

Location


California Endemic: True
California Counties and Islands: Name (Code)
Kern (KRN)
Quads: Name (Quad Code)
Lebec (3411877), Winters Ridge (3411886)

Threat List Data from the CNDDB


Threat List Total:	2
EOs with Threat Listed:	Total EOs	% of EOs
	2	67 %
Development	1	33%
Road/trail construction/maint.	1	33%

Notes



Threatened by development. Potentially threatened by road maintenance. See Madroño 67(1):19-34 (2020) for original description.
Threats:

Taxonomy:

Selected References

CRPR List Addition on 2020-11-05

Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 6 November 2025].