Taxon Report

Atriplex argentea Nutt. var. hillmanii Jones

Hillman's silverscale

Print Report

Taxon Summary

Atriplex argentea var. hillmanii, commonly known as Hillman's silverscale, is a annual herb in the Chenopodiaceae that is found in California and elsewhere. It occurs within Great Basin scrub, and Meadows and seeps, growing at elevations from 1200 to 1700 meters. Atriplex argentea var. hillmanii is ranked 2B.2, Plants Rare, Threatened, or Endangered in California, But More Common Elsewhere; Moderately threatened in California.

Classification


Scientific Name:	Atriplex argentea Nutt. var. hillmanii Jones
Common Name:	Hillman's silverscale
Family:	Chenopodiaceae
Element Code:	PDCHE04055
USDA Plants Symbol:
Synonyms/Other Names:

Ecology and Life History


Lifeform:	annual herb
Blooming Period: Jun-Sep	Jun-Sep
Elevation:	1200-1700 (3935-5580)
General Habitats:	Great Basin scrub, Meadows and seeps
Microhabitat:	Alkaline
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	2B.2
Global Rank:	G5T4
State Rank:	S2
State List:	None
Fed List:	None
Other Status:
CRPR Changes:	changed from 2.2 to 2B.2 on 2013-06-12

Occurrence Data from the CNDDB


Total Occurrences:	6
Element Occurrence Ranks:
Excellent (A)	0
Good (B)	0
Fair (C)	0
Poor (D)	0
None (X)	0
Unknown (U)	6

Location


California Endemic: False
California Counties and Islands: Name (Code)
Inyo (INY), Lassen (LAS), Modoc (MOD), Mono (MNO)
Quads: Name (Quad Code)
Blackrock (3611882), Calneva Lake (4012021), Cedarville (4112052), Chalfant Valley (3711853), Hansen Island (4112041), Karlo (4012053), Last Chance Range SW (3711716), Leonards Hot Springs (4112051), Warren Peak (4112042)

Threat List Data from the CNDDB


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

Notes



See Contributions to Western Botany 11:21 (1903) for original description.
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 12 May 2025].