Atriplex argentea var. expansa

silverscale

Family:Chenopodiaceae

Rarity

CNPS-EB: C

15 current natural populations

Criteria:

Limited/Threatened Habitat
W Limit

Observations

Key

Ecology

Flowers July - November

Habitats:

Alkali Areas

All Atriplex

References

Synonyms

Atriplex argentea subsp. expansa
Atriplex argentea var. mohavensis
Atriplex expansa
Atriplex trinervata

(c) Fred Melgert / Carla Hoegen (CC BY-NC)

Populations

Key

Location	Pop ID	Last Recorded	Notes
Byron - other or unknown sites	15	2022-07-22
Byron - other or unknown sites	18	2021-08-20
Byron Hot Springs area	4	2022-07-22
Byron Hot Springs area	16	2007-05-01
Clifton Court Forebay - E of Byron	5	2021-08-20
Knightsen area	12	2021-09-17
Livermore Valley	13	2021-09-24
Lone Tree Valley, Antioch	11	2016-08-19
Los Vaqueros Watershed	10	2006-10-26
Los Vaqueros Watershed	17	2025-03-22
Los Vaqueros Watershed	20	2025-09-14
Marsh Creek State Park - formerly Cowell Ranch	8	2017-03-25
Springtown Wetlands Preserve	2	2021-09-18
Vasco Hills	9	2015-08-18
Vasco Hills	19	2025-09-10
Antioch Dunes	14	1985-02-23	Historic
Byron - other or unknown sites	3	1922-12-31	Historic
Deer Valley	6	1998-12-31	Historic
Horse Valley - W of Brentwood, S of Antioch	7	1998-12-31	Historic
Pleasanton Area	1	1919-11-14	Historic

The list of populations shows the distinct populations identified by the CNPS-EB Rare and Unusual Plants Committee. The locations in this list are very general. More specific location details can be obtained from the links in the Observations section (for some of these links, a login is required).

Font

Populations in bold type have precise coordinates available for field volunteers and researchers.

Populations in normal type are only known from a description of the location; no precise coordinates are available.

Background

Populations with a white background have been observed in the last 25 years.

Populations with a blue background have not been observed for at least 25 years.

Populations with an orange background have an uncertain location or identification, or are planted.

Columns

Pop ID is a label that identifies the population. Many locations have more than one population of a species, and the population ID is used to distinguish them.