Taxon Details

Lycium exsertum

Arizona desert-thorn

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Taxon Summary:

Lycium exsertum, commonly known as Arizona desert-thorn, is a perennial shrub in the Solanaceae that is found in California and elsewhere. It occurs within Sonoran desert scrub, growing at elevations from to meters. Lycium exsertum is ranked 2B.1, Plants Rare, Threatened, or Endangered in California, But More Common Elsewhere; Seriously threatened in California.

Classification

Scientific Name: Lycium exsertum A. Gray
Common Name: Arizona desert-thorn
Family:	Solanaceae
Element Code:	PDSOL0G090
USDA Plants Symbol:	LYEX
Synonyms/Other Names:
Name Status:	JEF, FNA, POWO, IPNI, Tropicos

Conservation Status

CA Rare Plant Rank:	2B.1
Fed List:	None
State List:	None
Global Rank:	G4G5
State Rank:	S1
Other Status:
CRPR Changes: added to 2B.1 on 2018-03-14
Add Date:	2018-03-14
Date Edited:	2021-06-03

Ecology and Life History

Lifeform: perennial shrub

Blooming Period: Jan-Mar

Elevation:
- meters
- feet

General Habitats:

Sonoran desert scrub

Microhabitat Details:

Microhabitat:

Gravelly
Volcanic

Notes

Notes: Discovered in CA by James André and Glenn Clifton in 2013. Potentially threatened by vehicles. See Proceedings of the American Academy of Arts and Sciences 20:305 (1885) for original description.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	1
	Total EOs	% of EOs
EOs with Threat Listed:	1	100 %
ORV activity	1	100%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					1
A	B	C	D	X	U
0	0	0	0	0	1

Occurrence Status:
Historical >20 Years	0
Recent <=20 Years	1

Presence:
Presumed Extant	1
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
Arizona (AZ), Baja California (BA), California (CA), Sonora, Mexico (SO)

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

Quads: Name (Quad Code)
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