Taxon Report

Argyrochosma limitanea (Maxon) Windham ssp. limitanea

southwestern false cloak-fern

Print Report

Taxon Summary

Argyrochosma limitanea ssp. limitanea, commonly known as southwestern false cloak-fern, is a perennial rhizomatous herb in the Pteridaceae that is found in California and elsewhere. It occurs within Pinyon and juniper woodland (carbonate, and rocky), growing at elevations from 1800 to 1800 meters. Argyrochosma limitanea ssp. limitanea is ranked 2B.1, Plants Rare, Threatened, or Endangered in California, But More Common Elsewhere; Seriously threatened in California.

Classification


Scientific Name:	Argyrochosma limitanea (Maxon) Windham ssp. limitanea
Common Name:	southwestern false cloak-fern
Family:	Pteridaceae
Element Code:	PPADI0N051
USDA Plants Symbol:	ARLIL
Synonyms/Other Names:	Notholaena limitanea var. limitanea Cheilanthes limitanea Maxon var. limitanea Argyrochosma limitanea var. limitanea

Ecology and Life History


Lifeform:	perennial rhizomatous herb
Blooming Period: Apr-Oct	Apr-Oct
Elevation:	1800-1800 (5905-5905)
General Habitats:	Pinyon and juniper woodland
Microhabitat:
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	2B.1
Global Rank:	G4G5T3T4
State Rank:	S1
State List:	None
Fed List:	None
Other Status:
CRPR Changes:	changed from 2B.3 to 2B.1 on 2014-11-24 changed from 2.3 to 2B.3 on 2013-06-12

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)
San Bernardino (SBD)
Quads: Name (Quad Code)
Ivanpah (3511533)

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. See American Fern Journal 9:70 (1919) for original description, Madroño 25(1):55 (1978) for first CA collection, Phytologia 41(6):431-437 (1979) for nomenclature, and American Fern Journal 77:37-41 (1987) 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 5 February 2025].