Species Details

Astragalus brauntonii

Braunton's milk-vetch

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Classification

Scientific Name: Astragalus brauntonii Parish
Common Name: Braunton's milk-vetch
Family:	Fabaceae
Element Code:	PDFAB0F1G0
USDA Plants Symbol:	ASBR6
Synonyms/Other Names:

Conservation Status

CA Rare Plant Rank:	1B.1
Fed List:	FE (1997-01-29)
State List:	None
Global Rank:	G2
State Rank:	S2
Other Status:	SB_CalBG/RSABG; SB_SBBG
CRPR Changes:
Add Date:	1974-01-01
Date Edited:	2022-06-08

Ecology and Life History

Lifeform: perennial herb

Blooming Period: Jan-Aug

Elevation:
4 - 640 meters
15 - 2100 feet

General Habitats:

Chaparral
Coastal scrub
Valley and foothill grassland

Microhabitat Details: recent burns or disturbed areas, usually sandstone with carbonate layers

Microhabitat:

Burned areas (sometimes)
Carbonate
Disturbed areas (sometimes)
Sandstone (usually)

Notes

Notes: Threatened by development, vegetation/fuel management activities, and alteration of local fire regimes. See Bulletin of the Southern California Academy of Sciences 2:26-27 (1903) for original description, and Fremontia 19(3):6-7 (1991) for species account.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	11
	Total EOs	% of EOs
EOs with Threat Listed:	31	53 %
Development	19	32%
Improper burning regime	15	25%
Road/trail construction/maint.	15	25%
Non-native plant impacts	13	22%
Other	11	18%
Recreational use (non-ORV)	9	15%
Foot traffic/trampling	5	8%
Wood cutting or brush clearing	3	5%
Erosion/runoff	2	3%
ORV activity	2	3%
Grazing	1	1%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					59
A	B	C	D	X	U
0	10	9	5	5	30

Occurrence Status:
Historical >20 Years	14
Recent <=20 Years	45

Presence:
Presumed Extant	54
Possibly Extirpated	4
Presumed Extirpated	1

Location

California Endemic:

California Island:

States: Name (Code)
California (CA)

California Counties and Islands: Name (Code)
Los Angeles (LAX), Orange (ORA), Ventura (VEN)

Quads: Name (Quad Code)
Azusa (3411728), Beverly Hills (3411814)*, Black Star Canyon (3311776), Calabasas (3411826), Camarillo (3411921), Canoga Park (3411825)?*, El Toro (3311766), Hollywood (3411813)*, Malibu Beach (3411816)*, Mt. Wilson (3411821), Newbury Park (3411828), Point Dume (3411817), Point Mugu (3411911), Prado Dam (3311786), Thousand Oaks (3411827), Topanga (3411815), Triunfo Pass (3411818)

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