Taxon Report

Verbena californica Mold.

Red Hills vervain

Print Report

Classification


Scientific Name:	Verbena californica Mold.
Common Name:	Red Hills vervain
Family:	Verbenaceae
Element Code:	PDVER0N050
USDA Plants Symbol:	VECA9
Synonyms/Other Names:

Ecology and Life History


Lifeform:	perennial herb
Blooming Period: May-Sep	May-Sep
Elevation:	260-400 (855-1310)
General Habitats:	Cismontane woodland, Valley and foothill grassland
Microhabitat:	Mesic, Seeps (usually), Serpentine (usually)
Microhabitat Details:	usually serpentinite creeks

Conservation Status


CA Rare Plant Rank:	1B.1
Global Rank:	G2
State Rank:	S2
State List:	CT
Fed List:	FT
Other Status:	SB_CalBG/RSABG; SB_UCBG
CRPR Changes:

Occurrence Data from the CNDDB


Total Occurrences:	12
Element Occurrence Ranks:
Excellent (A)	2
Good (B)	3
Fair (C)	3
Poor (D)	0
None (X)	0
Unknown (U)	4

Location


California Endemic: True
California Counties and Islands: Name (Code)
Tuolumne (TUO)
Quads: Name (Quad Code)
Chinese Camp (3712074), Keystone (3712075), Sonora (3712084)

Threat List Data from the CNDDB


Threat List Total:	12
EOs with Threat Listed:	Total EOs	% of EOs
	10	83 %
Foot traffic/trampling	6	50%
Other	6	50%
Improper burning regime	5	41%
Altered flood/tidal/hydrologic regime	4	33%
Recreational use (non-ORV)	4	33%
Grazing	3	25%
Development	2	16%
Non-native plant impacts	2	16%
ORV activity	2	16%
Mining	1	8%
Feral pigs	1	8%
Vandalism/dumping/litter	1	8%

Notes



Known only from the Red Hills. Threatened by grazing, mining, development, non-native plants, recreation, foot traffic, and vehicles. Protected in part at Red Hills ACEC (BLM).
Threats:

Taxonomy:

Selected References

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 January 2025].