Taxon Report

Astragalus whitneyi Gray var. lenophyllus (Rydb.) Barneby

woolly-leaved milk-vetch

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Taxon Summary

Astragalus whitneyi var. lenophyllus, commonly known as woolly-leaved milk-vetch, is a perennial herb in the Fabaceae that is found in California and elsewhere. It occurs within Alpine boulder and rock field, and Subalpine coniferous forest (rocky), growing at elevations from 2135 to 3050 meters. Astragalus whitneyi var. lenophyllus is ranked 4.3, Plants of Limited Distribution, A Watch List; Not very threatened in California.

Classification


Scientific Name:	Astragalus whitneyi Gray var. lenophyllus (Rydb.) Barneby
Common Name:	woolly-leaved milk-vetch
Family:	Fabaceae
Element Code:	PDFAB0F9L6
USDA Plants Symbol:	ASWHL
Synonyms/Other Names:

Ecology and Life History


Lifeform:	perennial herb
Blooming Period: Jul-Aug	Jul-Aug
Elevation:	2135-3050 (7005-10005)
General Habitats:	Alpine boulder and rock field, Subalpine coniferous forest
Microhabitat:
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	4.3
Global Rank:	G5T4
State Rank:	S4
State List:	None
Fed List:	None
Other Status:
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: False
California Counties and Islands: Name (Code)
Alpine (ALP), Amador (AMA), Nevada (NEV), Placer (PLA), Plumas (PLU), Sierra (SIE)
Quads: Name (Quad Code)
Blue Nose Mtn. (3912077), Granite Chief (3912023), Mokelumne Peak (3812051), Norden (3912033), Pacific Valley (3811958), Soapstone Hill (3912173), Tahoe City (3912022)

Threat List Data from the CNDDB


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

Notes



See North American Flora 24(6):341 (1929) for original description, and Aliso 2(3):205 (1950) for revised nomenclature.
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 25 September 2025].