Taxon Details

Stylocline sonorensis

mesquite neststraw

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Taxon Summary:

Stylocline sonorensis, commonly known as mesquite neststraw, is a annual herb in the Asteraceae that is found in California and elsewhere. It occurs within Sonoran desert scrub, growing at elevations from 425 to 425 meters. Stylocline sonorensis is ranked 2A, Plants Presumed Extirpated in California, But More Common Elsewhere.

Classification

Scientific Name: Stylocline sonorensis Wiggins
Common Name: mesquite neststraw
Family:	Asteraceae
Element Code:	PDAST8Y060
USDA Plants Symbol:	STSO2
Synonyms/Other Names:
Name Status:	JEF, FNA, POWO, IPNI, Tropicos

Conservation Status

CA Rare Plant Rank:	2A
Fed List:	None
State List:	None
Global Rank:	G3G5
State Rank:	SX
Other Status:
CRPR Changes:
Add Date:	1994-01-01
Date Edited:	2022-12-06

Ecology and Life History

Lifeform: annual herb

Blooming Period: Apr

Elevation:
425 - 425 meters
1395 - 1395 feet

General Habitats:

Sonoran desert scrub (sandy)

Microhabitat Details:

Microhabitat:

Notes

Notes: Known in CA from only a single collection (1930) at Hayfields Dry Lake. Possibly extirpated after 1930 by development. See Contributions from the Dudley Herbarium 4:26 (1950) for original description, and Madroño 35(3):279 (1988) for the CA record.
Threats:
Taxonomy:

Threat List Data from the CNDDB

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

Occurrence Data from the CNDDB

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

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

Presence:
Presumed Extant	0
Possibly Extirpated	0
Presumed Extirpated	1

Location

California Endemic:

California Island:

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

California Counties and Islands: Name (Code)
Riverside (RIV)(?)

Quads: Name (Quad Code)
Hayfield (3311566)(?), Hayfield Spring (3311565)

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