Taxon Details

Atriplex persistens

vernal pool smallscale

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Taxon Summary:

Atriplex persistens, commonly known as vernal pool smallscale, is a annual herb in the Chenopodiaceae that is found only in California. It occurs within Vernal pools, growing at elevations from 10 to 115 meters. Atriplex persistens is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.

Classification

Scientific Name: Atriplex persistens Stutz & Chu
Common Name: vernal pool smallscale
Family:	Chenopodiaceae
Element Code:	PDCHE042P0
USDA Plants Symbol:	ATPE3
Synonyms/Other Names:
Name Status:	JEF, FNA, POWO, IPNI, Tropicos

Conservation Status

CA Rare Plant Rank:	1B.2
Fed List:	None
State List:	None
Global Rank:	G2
State Rank:	S2
Other Status:
CRPR Changes:
Add Date:	2001-01-01
Date Edited:	2021-05-26

Ecology and Life History

Lifeform: annual herb

Blooming Period: Jun-Oct

Elevation:
10 - 115 meters
35 - 375 feet

General Habitats:

Vernal pools (alkaline)

Microhabitat Details:

Microhabitat:

Notes

Notes: Possibly threatened by agriculture and flood control activities. Not in The Jepson Manual (1993). See Madroño 40(4):209-213 (1993) for original description.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	7
	Total EOs	% of EOs
EOs with Threat Listed:	8	20 %
Grazing	5	12%
Development	4	9%
Non-native plant impacts	2	4%
Pollution	1	2%
Erosion/runoff	1	2%
Agriculture	1	2%
Altered flood/tidal/hydrologic regime	1	2%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					41
A	B	C	D	X	U
5	6	2	0	2	26

Occurrence Status:
Historical >20 Years	33
Recent <=20 Years	8

Presence:
Presumed Extant	39
Possibly Extirpated	2
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA)

California Counties and Islands: Name (Code)
Colusa (COL), Glenn (GLE), Madera (MAD), Merced (MER), Solano (SOL), Stanislaus (STA)*, Tulare (TUL)

Quads: Name (Quad Code)
Arbuckle (3912211), Arena (3712036), Atwater (3712035)*, Bonita Ranch (3612082), Colusa (3912221), Crows Landing (3712141)*, Dozier (3812137), El Nido (3712024), Fairfield South (3812221), Gravelly Ford (3612072), Gustine (3712038), Ivanhoe (3611942), Logandale (3912242), San Luis Ranch (3712027), Sandy Mush (3712025), Sausalito School (3511982), Stevinson (3712037), Turner Ranch (3712026)

Notes:

Definitions of codes following a county and/or quad:
*		Presumed extirpated
(?)		Occurrence confirmed, but possibly extirpated
Quad and county data is imported from the CNDDB. Species may be present in other areas where conditions are favorable. These data should NOT be substituted for pre-project review or for on-site surveys.

Regional Map

Map

Presumed Extant

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CNPS Rare Plant Inventory