Taxon Details

Psorothamnus fremontii var. attenuatus

narrow-leaved psorothamnus

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Taxon Summary:

Psorothamnus fremontii var. attenuatus, commonly known as narrow-leaved psorothamnus, is a perennial shrub in the Fabaceae that is found in California and elsewhere. It occurs within Sonoran desert scrub (granitic, and volcanic), growing at elevations from 335 to 915 meters. Psorothamnus fremontii var. attenuatus is ranked 2B.3, Plants Rare, Threatened, or Endangered in California, But More Common Elsewhere; Not very threatened in California.

Classification

Scientific Name: Psorothamnus fremontii (Gray) Barneby var. attenuatus Barneby
Common Name: narrow-leaved psorothamnus
Family:	Fabaceae
Element Code:	PDFAB3C031
USDA Plants Symbol:	PSFRA
Synonyms/Other Names:
Name Status:	JEF, FNA, POWO, IPNI, Tropicos

Conservation Status

CA Rare Plant Rank:	2B.3
Fed List:	None
State List:	None
Global Rank:	G5T4?
State Rank:	S3
Other Status:
CRPR Changes:
Add Date:	2001-01-01
Date Edited:	2021-06-03

Ecology and Life History

Lifeform: perennial shrub

Blooming Period: Apr

Elevation:
335 - 915 meters
1100 - 3000 feet

General Habitats:

Sonoran desert scrub (granitic, volcanic)

Microhabitat Details:

Microhabitat:

Notes

Notes: Known in CA only from the Whipple Mtns. See Memoirs of the New York Botanical Garden 27:41 (1977) for original description.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	3
	Total EOs	% of EOs
EOs with Threat Listed:	10	48 %
Road/trail construction/maint.	5	23%
Mining	3	14%
Development	2	9%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					21
A	B	C	D	X	U
16	3	0	0	0	2

Occurrence Status:
Historical >20 Years	14
Recent <=20 Years	7

Presence:
Presumed Extant	21
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
Arizona (AZ), California (CA), Nevada (NV)

California Counties and Islands: Name (Code)
San Bernardino (SBD)

Quads: Name (Quad Code)
Chemehuevi Peak (3411455), Gene Wash (3411432), Monumental Pass (3411466), Savahia Peak (3411435), Whipple Mts. SW (3411434), Whipple Wash (3411433)

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