Taxon Report

Streptanthus barbiger Greene

bearded jewelflower

Print Report

Taxon Summary

Streptanthus barbiger, commonly known as bearded jewelflower, is a annual herb in the Brassicaceae that is found only in California. It occurs within Chaparral, growing at elevations from 150 to 1070 meters. Streptanthus barbiger is ranked 4.2, Plants of Limited Distribution, A Watch List; Moderately threatened in California.

Classification


Scientific Name:	Streptanthus barbiger Greene
Common Name:	bearded jewelflower
Family:	Brassicaceae
Element Code:	PDBRA2G040
USDA Plants Symbol:	STBA3
Synonyms/Other Names:

Ecology and Life History


Lifeform:	annual herb
Blooming Period: May-Jul	May-Jul
Elevation:	150-1070 (490-3510)
General Habitats:	Chaparral
Microhabitat:
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	4.2
Global Rank:	G3
State Rank:	S3
State List:	None
Fed List:	None
Other Status:	SB_UCBG
CRPR Changes:

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: True
California Counties and Islands: Name (Code)
Colusa (COL), Lake (LAK), Sonoma (SON)
Quads: Name (Quad Code)
Cazadero (3812351), Cloverdale (3812371), Fort Ross (3812352), Hough Springs (3912225), Kelseyville (3812287), Kenwood (3812245), Salt Canyon (3912213), The Geysers (3812277), Tombs Creek (3812362), Warm Springs Dam (3812361)

Threat List Data from the CNDDB


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

Notes



Variable; intergrades with S. batrachopus and S. breweri. See Pittonia 1:217 (1888) for original description.
Threats:

Taxonomy:

Selected References

USFS Potential Species of Conservation Concern Profile

Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 28 October 2025].