Taxon Report

Acmispon argyraeus (Greene) Brouillet var. notitius (Isely) Brouillet

Providence Mountains lotus

Print Report

Taxon Summary

Acmispon argyraeus var. notitius, commonly known as Providence Mountains lotus, is a perennial herb in the Fabaceae that is found only in California. It occurs within Pinyon and juniper woodland, growing at elevations from 1200 to 2000 meters. Acmispon argyraeus var. notitius is ranked 1B.3, Plants Rare, Threatened or Endangered in California and Elsewhere; Not very threatened in California.

Classification


Scientific Name:	Acmispon argyraeus (Greene) Brouillet var. notitius (Isely) Brouillet
Common Name:	Providence Mountains lotus
Family:	Fabaceae
Element Code:	PDFAB2A053
USDA Plants Symbol:
Synonyms/Other Names:	Lotus argyraeus var. notitius

Ecology and Life History


Lifeform:	perennial herb
Blooming Period: May-Aug	May-Aug
Elevation:	1200-2000 (3935-6560)
General Habitats:	Pinyon and juniper woodland
Microhabitat:
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	1B.3
Global Rank:	G4?T2
State Rank:	S2
State List:	None
Fed List:	None
Other Status:
CRPR Changes:

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: True
California Counties and Islands: Name (Code)
San Bernardino (SBD)
Quads: Name (Quad Code)
Fountain Peak (3411585), Kelso Dunes (3411586)

Threat List Data from the CNDDB


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

Notes



See Brittonia 30(4):466-472 (1978) for original description, and Memoirs of the New York Botanical Garden 25:128-206 (1981) for taxonomic treatment.
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 May 2025].