Taxon Details

Astragalus platytropis

broad-keeled milk-vetch

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Taxon Summary:

Astragalus platytropis, commonly known as broad-keeled milk-vetch, is a perennial herb in the Fabaceae that is found in California and elsewhere. It occurs within Alpine boulder and rock field, Pinyon and juniper woodland, and Subalpine coniferous forest, growing at elevations from 2345 to 3550 meters. Astragalus platytropis is ranked 2B.2, Plants Rare, Threatened, or Endangered in California, But More Common Elsewhere; Moderately threatened in California.

Classification

Scientific Name: Astragalus platytropis Gray
Common Name: broad-keeled milk-vetch
Family:	Fabaceae
Element Code:	PDFAB0F6X0
USDA Plants Symbol:	ASPL3
Synonyms/Other Names:
Name Status:	JEF, FNA, POWO, IPNI, Tropicos

Conservation Status

CA Rare Plant Rank:	2B.2
Fed List:	None
State List:	None
Global Rank:	G5
State Rank:	S3
Other Status:
CRPR Changes:
Add Date:	1994-01-01
Date Edited:	2021-08-25

Ecology and Life History

Lifeform: perennial herb

Blooming Period: Jun-Sep

Elevation:
2345 - 3550 meters
7695 - 11650 feet

General Habitats:

Alpine boulder and rock field
Pinyon and juniper woodland
Subalpine coniferous forest

Microhabitat Details:

Microhabitat:

Rocky

Notes

Notes: Threatened by grazing, trampling, and vehicles. On review list in OR. See Proceedings of the American Academy of Arts and Sciences 6:526 (1865) for original description, and Memoirs of the New York Botanical Garden 13:979-981 (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:	2	11 %
Foot traffic/trampling	2	11%
Grazing	2	11%
ORV activity	2	11%
Recreational use (non-ORV)	1	5%
Mining	1	5%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					18
A	B	C	D	X	U
0	1	0	0	0	17

Occurrence Status:
Historical >20 Years	18
Recent <=20 Years	0

Presence:
Presumed Extant	18
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA), Idaho (ID), Montana (MT), Nevada (NV), Oregon (OR), Utah (UT), Wyoming (WY)

California Counties and Islands: Name (Code)
Inyo (INY), Mono (MNO)

Quads: Name (Quad Code)
Blanco Mtn. (3711842), Fales Hot Springs (3811934), Last Chance Mtn. (3711736), Mazourka Peak (3611881), Mt. Patterson (3811943), Pickel Meadow (3811935), Tin Mountain (3611784)

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