Taxon Report

Nama dichotoma (Ruiz & Pav.) Choisy var. dichotoma

forked purple mat

Print Report

Taxon Summary

Nama dichotoma var. dichotoma, commonly known as forked purple mat, is a annual herb in the Namaceae that is found in California and elsewhere. It occurs within Pinyon and juniper woodland (carbonate, and granitic), growing at elevations from 1900 to 2200 meters. Nama dichotoma var. dichotoma is ranked 2B.3, Plants Rare, Threatened, or Endangered in California, But More Common Elsewhere; Not very threatened in California.

Classification


Scientific Name:	Nama dichotoma (Ruiz & Pav.) Choisy var. dichotoma
Common Name:	forked purple mat
Family:	Namaceae
Element Code:	PDHYD0A061
USDA Plants Symbol:
Synonyms/Other Names:	Nama dichotomum (Ruiz, Lopez & Pav.) Choisy var. dichotomum

Ecology and Life History


Lifeform:	annual herb
Blooming Period: Sep-Oct	Sep-Oct
Elevation:	1900-2200 (6235-7220)
General Habitats:	Pinyon and juniper woodland
Microhabitat:
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	2B.3
Global Rank:	G5T5?
State Rank:	S1
State List:	None
Fed List:	None
Other Status:
CRPR Changes:	changed from 2.3 to 2B.3 on 2013-06-12

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)
San Bernardino (SBD)
Quads: Name (Quad Code)
Ivanpah (3511533), Pinto Valley (3511523)

Threat List Data from the CNDDB


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

Notes



Known in CA only from the New York Mtns.
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 24 October 2025].