Taxon Report

Atriplex argentea Stutz, G.L. Chu, & S.C. Sanderson var. longitrichoma S.L. Welsh

Pahrump orache

Print Report

Classification


Scientific Name:	Atriplex argentea Stutz, G.L. Chu, & S.C. Sanderson var. longitrichoma S.L. Welsh
Common Name:	Pahrump orache
Family:	Chenopodiaceae
Element Code:	PDCHE04056
USDA Plants Symbol:
Synonyms/Other Names:

Ecology and Life History


Lifeform:	annual herb
Blooming Period: Apr-May	Apr-May
Elevation:	640-850 (2100-2790)
General Habitats:	Mojavean desert scrub
Microhabitat:	Alkaline, Disturbed areas, Roadsides
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	1B.1
Global Rank:	G5T2
State Rank:	S2
State List:	None
Fed List:	None
Other Status:	BLM_S; SB_CalBG/RSABG
CRPR Changes:	added to 1B.1 on 2010-07-29

Occurrence Data from the CNDDB


Total Occurrences:	8
Element Occurrence Ranks:
Excellent (A)	4
Good (B)	3
Fair (C)	0
Poor (D)	0
None (X)	0
Unknown (U)	1

Location


California Endemic: False
California Counties and Islands: Name (Code)
Inyo (INY)
Quads: Name (Quad Code)
Nopah Peak (3611611), Sixmile Spring (3611621), Stewart Valley (3611622), Tecopa Pass (3511671), Twelvemile Spring (3611612)

Threat List Data from the CNDDB


Threat List Total:	1
EOs with Threat Listed:	Total EOs	% of EOs
	6	75 %
ORV activity	6	75%

Notes



Threatened by development and vehicles. See Madroño 45(2): 128 (1998) for original description, and Rhodora 102: 421 (2001) for revised nomenclature.
Threats:

Taxonomy:

Selected References

Proposed New Add to List 1B.1, G5T1T2 S1 (2010)

Citation California Native Plant Society, Rare Plant Program. 2024. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 25 December 2024].