Taxon Report

Atriplex cordulata Jeps. var. cordulata

heartscale

Print Report

© 1994 Robert E. Preston, Ph.D.

Classification


Scientific Name:	Atriplex cordulata Jeps. var. cordulata
Common Name:	heartscale
Family:	Chenopodiaceae
Element Code:	PDCHE040B0
USDA Plants Symbol:
Synonyms/Other Names:	Atriplex cordulata

Ecology and Life History


Lifeform:	annual herb
Blooming Period: Apr-Oct	Apr-Oct
Elevation:	0-560 (0-1835)
General Habitats:	Chenopod scrub, Meadows and seeps, Valley and foothill grassland
Microhabitat:	Alkaline (sometimes)
Microhabitat Details:	sometimes saline

Conservation Status


CA Rare Plant Rank:	1B.2
Global Rank:	G3T2
State Rank:	S2
State List:	None
Fed List:	None
Other Status:	BLM_S
CRPR Changes:

Occurrence Data from the CNDDB


Total Occurrences:	66
Element Occurrence Ranks:
Excellent (A)	6
Good (B)	11
Fair (C)	8
Poor (D)	0
None (X)	12
Unknown (U)	29

Location


California Endemic: True
California Counties and Islands: Name (Code)
Alameda (ALA), Butte (BUT), Colusa (COL), Contra Costa (CCA), Fresno (FRE), Glenn (GLE), Kern (KRN), Madera (MAD), Merced (MER), San Joaquin (SJQ), Solano (SOL), Stanislaus (STA), Tulare (TUL), Yolo (YOL)*
Quads: Name (Quad Code)
Altamont (3712166), Arena (3712036), Berenda (3712012), Birds Landing (3812127), Bliss Ranch (3712014), Bonita Ranch (3612082), Byron Hot Springs (3712176), Ceres (3712058), Chowchilla (3712013), Clifton Court Forebay (3712175), Conner (3511921), Crows Landing (3712141), Davis (3812156), Denair (3712057), Denverton (3812128), Dozier (3812137), El Nido (3712024), Elmira (3812138), Firebaugh NE (3612083), Goshen (3611934), Gravelly Ford (3612072), Gustine (3712038), Ingomar (3712028), Jamesan (3612062), Kerman (3612061), Logandale (3912242), Lokern (3511945), Los Banos (3712017), Maricopa (3511914), Mendota Dam (3612073), Meridian (3912128), Merritt (3812157), Millux (3511922), Mouth of Kern (3511923), Pennington (3912137), Plainsburg (3712023), Poso Farm (3612084), San Luis Ranch (3712027), Sandy Mush (3712025), Stevinson (3712037), Stockton West (3712183), Taft (3511924), Tranquillity (3612063), Tupman (3511933), Turner Ranch (3712026), Volta (3712018)

Threat List Data from the CNDDB


Threat List Total:	8
EOs with Threat Listed:	Total EOs	% of EOs
	29	44 %
Grazing	12	18%
Agriculture	8	12%
Development	7	10%
Road/trail construction/maint.	4	6%
Foot traffic/trampling	3	4%
Dam/Inundation	2	3%
Non-native plant impacts	2	3%
Waterway bank protection/maintenance	1	1%

Notes




Threats:
Threatened by competition from non-native plants. Possibly threatened by trampling.
Taxonomy:
Similar to A. coronata var. coronata.

Selected References

Citation California Native Plant Society, Rare Plant Program. 2024. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 27 December 2024].