Taxon Report

Acanthomintha obovata Jeps. ssp. obovata

San Benito thorn-mint

Print Report

Taxon Summary

Acanthomintha obovata ssp. obovata, commonly known as San Benito thorn-mint, is a annual herb in the Lamiaceae that is found only in California. It occurs within Chaparral, Cismontane woodland, and Valley and foothill grassland, growing at elevations from 395 to 1500 meters. Acanthomintha obovata ssp. obovata is ranked 4.2, Plants of Limited Distribution, A Watch List; Moderately threatened in California.

Classification


Scientific Name:	Acanthomintha obovata Jeps. ssp. obovata
Common Name:	San Benito thorn-mint
Family:	Lamiaceae
Element Code:	PDLAM01032
USDA Plants Symbol:	ACOBO
Synonyms/Other Names:

Ecology and Life History


Lifeform:	annual herb
Blooming Period: Apr-Jul	Apr-Jul
Elevation:	395-1500 (1295-4920)
General Habitats:	Chaparral, Cismontane woodland, Valley and foothill grassland
Microhabitat:	Alkaline, Clay, Serpentine
Microhabitat Details:	heavy clay

Conservation Status


CA Rare Plant Rank:	4.2
Global Rank:	G4T3T4
State Rank:	S3S4
State List:	None
Fed List:	None
Other Status:
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)
Fresno (FRE), Monterey (MNT), San Benito (SBT)
Quads: Name (Quad Code)
Ciervo Mtn. (3612045), Cosio Knob (3612112), Curry Mountain (3612014), Hepsedam Peak (3612037), Hernandez Reservoir (3612047), Joaquin Rocks (3612034), Lonoak (3612038), Monarch Peak (3612027), Parkfield (3512084), Pinalito Canyon (3612131), Priest Valley (3612026), Rock Spring Peak (3612048), San Benito (3612151), San Benito Mtn. (3612036), The Dark Hole (3512083)

Threat List Data from the CNDDB


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

Notes




Threats:
Threatened by grazing.
Taxonomy:

Selected References

Citation California Native Plant Society, Rare Plant Program. 2026. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 13 March 2026].