Taxon Report

Monardella australis ssp. occidentalis

southwestern mountain monardella

Print Report

Taxon Summary

Monardella australis ssp. occidentalis, commonly known as southwestern mountain monardella, is a perennial herb in the Lamiaceae that is found only in California. It occurs within Chaparral (montane), and Upper montane coniferous forest, growing at elevations from 1890 to 2435 meters. Monardella australis ssp. occidentalis is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.

Classification


Scientific Name:	Monardella australis ssp. occidentalis
Common Name:	southwestern mountain monardella
Family:	Lamiaceae
Element Code:	PDLAM18113
USDA Plants Symbol:
Synonyms/Other Names:

Ecology and Life History


Lifeform:	perennial herb
Blooming Period: Jun-Jul	Jun-Jul
Elevation:	1890-2435 (6200-7990)
General Habitats:	Chaparral, Upper montane coniferous forest
Microhabitat:	Clay, Loam, Rocky, Scree
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	1B.1
Global Rank:	G4T1
State Rank:	S1
State List:	None
Fed List:	None
Other Status:	SB_SBBG
CRPR Changes:	added to 1B.1 on 2021-02-03

Occurrence Data from the CNDDB


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

Location


California Endemic: False
California Counties and Islands: Name (Code)
Santa Barbara (SBA), Ventura (VEN)
Quads: Name (Quad Code)
Big Pine Mtn. (3411966), Reyes Peak (3411963)

Threat List Data from the CNDDB


Threat List Total:	1
EOs with Threat Listed:	Total EOs	% of EOs
	1	33 %
Wood cutting or brush clearing	1	33%

Notes



See Novon 23(4): 416-431 (2015) for original description.
Threats:

Taxonomy:

Selected References

CRPR List Addition on 2021-02-03

Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 3 November 2025].