Taxon Report

Pleuridium mexicanum Cardot

Mexican earthmoss

Print Report

Taxon Summary

Pleuridium mexicanum, commonly known as Mexican earthmoss, is a moss in the Ditrichaceae that is found in California and elsewhere. It occurs within Chaparral, growing at elevations from 440 to 440 meters. Pleuridium mexicanum is ranked 2B.1, Plants Rare, Threatened, or Endangered in California, But More Common Elsewhere; Seriously threatened in California.

Classification


Scientific Name:	Pleuridium mexicanum Cardot
Common Name:	Mexican earthmoss
Family:	Ditrichaceae
Element Code:	NBMUS5M080
USDA Plants Symbol:	PLME8
Synonyms/Other Names:

Ecology and Life History


Lifeform:	moss
Blooming Period:
Elevation:	440-440 (1445-1445)
General Habitats:	Chaparral
Microhabitat:	Sandstone
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	2B.1
Global Rank:	G5
State Rank:	S1
State List:	None
Fed List:	None
Other Status:
CRPR Changes:	added to 2B.1 on 2014-07-28

Occurrence Data from the CNDDB


Total Occurrences:	1
Element Occurrence Ranks:
Excellent (A)	0
Good (B)	0
Fair (C)	0
Poor (D)	0
None (X)	0
Unknown (U)	1

Location


California Endemic: False
California Counties and Islands: Name (Code)
Santa Barbara (SBA)
Quads: Name (Quad Code)
San Marcos Pass (3411957)

Threat List Data from the CNDDB


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

Notes



See Revue Bryologique 37:118 (1910) for original description, and The Bryologist 110(3):510-513 (2007) for information on discovery in CA.
Threats:

Taxonomy:

Selected References

CRPR List Addition on 2014-07-28

Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 27 January 2025].