Taxon Report

Monardella antonina Hardham ssp. benitensis (Hardham) Jokerst

San Benito monardella

Print Report

Taxon Summary

Monardella antonina ssp. benitensis, commonly known as San Benito monardella, is a perennial rhizomatous herb in the Lamiaceae that is found only in California. It occurs within Chaparral, Cismontane woodland, Lower montane coniferous forest, and Valley and foothill grassland, growing at elevations from 500 to 1570 meters. Monardella antonina ssp. benitensis is ranked 4.3, Plants of Limited Distribution, A Watch List; Not very threatened in California.

Classification


Scientific Name:	Monardella antonina Hardham ssp. benitensis (Hardham) Jokerst
Common Name:	San Benito monardella
Family:	Lamiaceae
Element Code:	PDLAM18012
USDA Plants Symbol:	MOANB
Synonyms/Other Names:	Monardella benitensis Hardham

Ecology and Life History


Lifeform:	perennial rhizomatous herb
Blooming Period: Jun-Jul	Jun-Jul
Elevation:	500-1570 (1640-5150)
General Habitats:	Chaparral, Cismontane woodland, Lower montane coniferous forest, Valley and foothill grassland
Microhabitat:	Serpentine (usually)
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	4.3
Global Rank:	G4T3
State Rank:	S3
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), San Benito (SBT)
Quads: Name (Quad Code)
Hepsedam Peak (3612037), Hernandez Reservoir (3612047), Idria (3612046), Joaquin Rocks (3612034), San Benito Mtn. (3612036), Santa Rita Peak (3612035)

Threat List Data from the CNDDB


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

Notes



See Leaflets of Western Botany 8(3):55 (1956) for original description, and Phytologia 72(1):9-16 (1992) for revised nomenclature.
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 13 April 2025].