Taxon Report

Acanthomintha obovata Jeps. ssp. cordata Jokerst

heart-leaved thorn-mint

Print Report

Taxon Summary

Acanthomintha obovata ssp. cordata, commonly known as heart-leaved thorn-mint, is a annual herb in the Lamiaceae that is found only in California. It occurs within Chaparral (openings), Cismontane woodland, Pinyon and juniper woodland, and Valley and foothill grassland, growing at elevations from 785 to 1540 meters. Acanthomintha obovata ssp. cordata is ranked 4.2, Plants of Limited Distribution, A Watch List; Moderately threatened in California.

Classification


Scientific Name:	Acanthomintha obovata Jeps. ssp. cordata Jokerst
Common Name:	heart-leaved thorn-mint
Family:	Lamiaceae
Element Code:	PDLAM01033
USDA Plants Symbol:	ACOBC
Synonyms/Other Names:

Ecology and Life History


Lifeform:	annual herb
Blooming Period: Apr-Jul	Apr-Jul
Elevation:	785-1540 (2575-5055)
General Habitats:	Chaparral, Cismontane woodland, Pinyon and juniper woodland, Valley and foothill grassland
Microhabitat:	Clay
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	4.2
Global Rank:	G4T3
State Rank:	S3
State List:	None
Fed List:	None
Other Status:	SB_CalBG/RSABG; SB_SBBG
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)
Los Angeles (LAX), San Luis Obispo (SLO), Santa Barbara (SBA), Ventura (VEN)
Quads: Name (Quad Code)
Apache Canyon (3411973), Ballinger Canyon (3411984), Caliente Mtn. (3511917), Chimineas Ranch (3511928), Cuddy Valley (3411971), Cuyama Peak (3411974), Cuyamaca Peak (3211685), La Panza (3512032), La Panza Ranch (3512042), Lebec (3411877), Lockwood Valley (3411961), Rancho Nuevo Creek (3411964), Reyes Peak (3411963), Salisbury Potrero (3411976), San Guillermo (3411962), Sawmill Mountain (3411972), Wells Ranch (3511916)

Threat List Data from the CNDDB


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

Notes



See Madroño 38(4):278-286 (1991) for original description.
Threats:
Possibly threatened by vehicles and grazing.
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 12 July 2025].