Taxon Details

Astragalus lemmonii

Lemmon's milk-vetch

View Report Copy Link Calflora eFlora CCH CalPhotos iNaturalist

Taxon Summary:

Astragalus lemmonii, commonly known as Lemmon's milk-vetch, is a perennial herb in the Fabaceae that is found in California and elsewhere. It occurs within Great Basin scrub, Marshes and swamps (lake margins), and Meadows and seeps, growing at elevations from 1007 to 2200 meters. Astragalus lemmonii is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.

Classification

Scientific Name: Astragalus lemmonii Gray
Common Name: Lemmon's milk-vetch
Family:	Fabaceae
Element Code:	PDFAB0F4N0
USDA Plants Symbol:	ASLE6
Synonyms/Other Names:
Name Status:	JEF, FNA, POWO, IPNI, Tropicos

Conservation Status

CA Rare Plant Rank:	1B.2
Fed List:	None
State List:	None
Global Rank:	G2
State Rank:	S2
Other Status:	BLM_S; SB_CalBG/RSABG; USFS_S
CRPR Changes:
Add Date:	2001-01-01
Date Edited:	2023-05-02

Ecology and Life History

Lifeform: perennial herb

Blooming Period: May-Aug(Sep)

Elevation:
1007 - 2200 meters
3305 - 7220 feet

General Habitats:

Great Basin scrub
Meadows and seeps
Marshes and swamps (lake margins)

Microhabitat Details:

Microhabitat:

Notes

Notes: Threatened by land conversion and pipeline construction. See Proceedings of the American Academy of Arts and Sciences 8:627 (1873) for original description, and Memoirs of the New York Botanical Garden 13:1109-1111 (1964) for taxonomic treatment.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	5
	Total EOs	% of EOs
EOs with Threat Listed:	4	33 %
Grazing	2	16%
Insufficient population/stand size	1	8%
Non-native plant impacts	1	8%
Road/trail construction/maint.	1	8%
Development	1	8%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					12
A	B	C	D	X	U
0	2	0	2	0	8

Occurrence Status:
Historical >20 Years	8
Recent <=20 Years	4

Presence:
Presumed Extant	12
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA), Nevada (NV), Oregon (OR)*

California Counties and Islands: Name (Code)
Lassen (LAS), Modoc (MOD), Mono (MNO), Plumas (PLU), Shasta (SHA), Sierra (SIE)

Quads: Name (Quad Code)
Antelope Valley (3912063), Ash Valley (4112016), Big Swamp (4112121), Dixie Peak (4012181), Fall River Mills (4112114), Loyalton (3912062), Perez (4112163), Reconnaissance Peak (3912073), Toms Place (3711856), Whitmore Hot Springs (3711867)

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

Click on quad for name. Hold Shift Key to use mouse scroll wheel

CNPS Rare Plant Inventory