Species Details

Astragalus didymocarpus var. milesianus

Miles' milk-vetch

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Species Description:

Astragalus didymocarpus var. milesianus, commonly known as Miles' milk-vetch, is a annual herb in the Fabaceae that is found only in California. It occurs within Coastal scrub, growing at elevations from 20 to 90 meters. Astragalus didymocarpus var. milesianus is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.

Classification

Scientific Name: Astragalus didymocarpus H. & A. var. milesianus (Rydb.) Jeps.
Common Name: Miles' milk-vetch
Family:	Fabaceae
Element Code:	PDFAB0F2X3
USDA Plants Symbol:	ASDIM
Synonyms/Other Names:
Name Status:	JEP, FNA, POWO, IPNI, Tropicos

Conservation Status

CA Rare Plant Rank:	1B.2
Fed List:	None
State List:	None
Global Rank:	G5T2
State Rank:	S2
Other Status:
CRPR Changes:
Add Date:	2001-01-01
Date Edited:	2021-05-26

Ecology and Life History

Lifeform: annual herb

Blooming Period: Mar-Jun

Elevation:
20 - 90 meters
65 - 295 feet

General Habitats:

Coastal scrub (clay)

Microhabitat Details:

Microhabitat:

Notes

Notes: Threatened by development. See Bulletin of the Torrey Botanical Club 53(3):169 (1926) for original description, and Flora of California 2(1):376-377 (1936) by W.L. Jepson for revised nomenclature.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	1
	Total EOs	% of EOs
EOs with Threat Listed:	1	6 %
Development	1	6%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					16
A	B	C	D	X	U
0	1	0	0	0	15

Occurrence Status:
Historical >20 Years	14
Recent <=20 Years	2

Presence:
Presumed Extant	16
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA)

California Counties and Islands: Name (Code)
San Luis Obispo (SLO), Santa Barbara (SBA), Ventura (VEN)

Quads: Name (Quad Code)
Atascadero (3512046), Caldwell Mesa (3512023), Cayucos (3512048), Foxen Canyon (3412072), Gaviota (3412042), Hildreth Peak (3411955), Little Pine Mtn. (3411956), Lompoc (3412064), Matilija (3411943), Morro Bay North (3512047), Morro Bay South (3512037), Ojai (3411942), San Luis Obispo (3512036), Santa Margarita (3512045), Twitchell Dam (3412083), Ventura (3411933), Zaca Creek (3412062), Zaca Lake (3412071)

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