Taxon Report

Astragalus nutans Jones

Providence Mountains milk-vetch

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Taxon Summary

Astragalus nutans, commonly known as Providence Mountains milk-vetch, is a annual herb in the Fabaceae that is found only in California. It occurs within Joshua tree "woodland", Mojavean desert scrub, Pinyon and juniper woodland, and Sonoran desert scrub, growing at elevations from 450 to 1950 meters. Astragalus nutans is ranked 4.3, Plants of Limited Distribution, A Watch List; Not very threatened in California.

Classification


Scientific Name:	Astragalus nutans Jones
Common Name:	Providence Mountains milk-vetch
Family:	Fabaceae
Element Code:	PDFAB0F620
USDA Plants Symbol:	ASNU3
Synonyms/Other Names:

Ecology and Life History


Lifeform:	annual herb
Blooming Period: Mar-Jun(Oct)	Mar-Jun(Oct)
Elevation:	450-1950 (1475-6400)
General Habitats:	Joshua tree "woodland", Mojavean desert scrub, Pinyon and juniper woodland, Sonoran desert scrub
Microhabitat:	Gravelly (sometimes), Sandy (sometimes)
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	4.3
Global Rank:	G3
State Rank:	S3
State List:	None
Fed List:	None
Other Status:	SB_CalBG/RSABG
CRPR Changes:

Occurrence Data from the CNDDB


Total Occurrences:	0
Element Occurrence Ranks:
Excellent (A)	0
Good (B)	0
Fair (C)	0
Poor (D)	0
None (X)	0
Unknown (U)	0

Location


California Endemic: True
California Counties and Islands: Name (Code)
Inyo (INY), Riverside (RIV), San Bernardino (SBD), San Diego (SDG)
Quads: Name (Quad Code)
Agua Caliente Springs (3211683), Bighorn Basin (3411576), Budweiser Wash (3411577), Castle Peaks (3511532), Clark Mtn. (3511555), Corn Spring (3311563), Fountain Peak (3411585), Hart Peak (3511531), Homer Mtn. (3511418), Horse Thief Springs (3511578), Ivanpah (3511533), Kingston Peak (3511568), Kingston Spring (3511558), Leach Lake (3511656), Leach Spring (3511657), Mid Hills (3511524), Pachalka Spring (3511556), Pinto Valley (3511523), Solomons Knob (3511547), Telescope Peak (3611721), Turquoise Mtn. (3511548), West of Drinkwater Lake (3511646), Yucca Valley North (3411624)

Threat List Data from the CNDDB


Threat List Total:	0
EOs with Threat Listed:	Total EOs	% of EOs
	0	0 %

Notes




Threats:

Taxonomy:

Selected References

Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 1 February 2025].