Taxon Details

Astragalus ravenii

Raven's milk-vetch

View Report Copy Link Calflora eFlora CCH CalPhotos iNaturalist

Taxon Summary:

Astragalus ravenii, commonly known as Raven's milk-vetch, is a perennial herb in the Fabaceae that is found only in California. It occurs within Alpine boulder and rock field, and Upper montane coniferous forest, growing at elevations from 3355 to 3460 meters. Astragalus ravenii is ranked 1B.3, Plants Rare, Threatened or Endangered in California and Elsewhere; Not very threatened in California.

Classification

Scientific Name: Astragalus ravenii Barneby
Common Name: Raven's milk-vetch
Family:	Fabaceae
Element Code:	PDFAB0F7F0
USDA Plants Symbol:	ASRA5
Synonyms/Other Names: Astragalus monoensis Barneby var. ravenii (Barneby) Isley
Name Status:	JEF, FNA, POWO, IPNI, Tropicos

Conservation Status

CA Rare Plant Rank:	1B.3
Fed List:	None
State List:	None
Global Rank:	G2
State Rank:	S2
Other Status:	USFS_S
CRPR Changes:
Add Date:	1974-01-01
Date Edited:	2021-08-25

Ecology and Life History

Lifeform: perennial herb

Blooming Period: Jul-Sep

Elevation:
3355 - 3460 meters
11010 - 11350 feet

General Habitats:

Alpine boulder and rock field
Upper montane coniferous forest

Microhabitat Details:

Microhabitat:

Gravelly

Notes

Notes: Known from fewer than five occurrences. See Aliso 4:131 (1958) for original description, Memoirs of the New York Botanical Garden 13:967-968 (1964) for taxonomic treatment, and Systematic Botany 8(4):423 (1983) for revised nomenclature.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	2
	Total EOs	% of EOs
EOs with Threat Listed:	2	50 %
Road/trail construction/maint.	2	50%
Foot traffic/trampling	1	25%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					4
A	B	C	D	X	U
1	1	0	0	0	2

Occurrence Status:
Historical >20 Years	1
Recent <=20 Years	3

Presence:
Presumed Extant	4
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA)

California Counties and Islands: Name (Code)
Fresno (FRE), Inyo (INY)

Quads: Name (Quad Code)
Aberdeen (3611883), Mt. Morgan (3711846), Mt. Pinchot (3611884)

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