Species Details

Astragalus umbraticus

Bald Mountain milk-vetch

View Report Copy Link Calflora eFlora CCH CalPhotos iNaturalist

Species Description:

Astragalus umbraticus, commonly known as Bald Mountain milk-vetch, is a perennial herb in the Fabaceae that is found in California and elsewhere. It occurs within Cismontane woodland, and Lower montane coniferous forest, growing at elevations from 150 to 1250 meters. Astragalus umbraticus is ranked 2B.2, Plants Rare, Threatened, or Endangered in California, But More Common Elsewhere; Moderately threatened in California.

Classification

Scientific Name: Astragalus umbraticus Sheld.
Common Name: Bald Mountain milk-vetch
Family:	Fabaceae
Element Code:	PDFAB0F990
USDA Plants Symbol:	ASUM3
Synonyms/Other Names:
Name Status:	JEP, FNA, POWO, IPNI, Tropicos

Conservation Status

CA Rare Plant Rank:	2B.2
Fed List:	None
State List:	None
Global Rank:	G4
State Rank:	S2
Other Status:
CRPR Changes:
Add Date:	1974-01-01
Date Edited:	2023-05-02

Ecology and Life History

Lifeform: perennial herb

Blooming Period: May-Aug

Elevation:
150 - 1250 meters
490 - 4100 feet

General Habitats:

Cismontane woodland
Lower montane coniferous forest

Microhabitat Details:

Microhabitat:

Roadsides (sometimes)

Notes

Notes: On watch list in OR.
Threats: Threatened by logging and road maintenance.
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	7
	Total EOs	% of EOs
EOs with Threat Listed:	24	67 %
Logging	20	55%
Road/trail construction/maint.	16	44%
Other	9	25%
Recreational use (non-ORV)	1	2%
Non-native plant impacts	1	2%
Wood cutting or brush clearing	1	2%
Foot traffic/trampling	1	2%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					36
A	B	C	D	X	U
4	10	8	1	1	12

Occurrence Status:
Historical >20 Years	13
Recent <=20 Years	23

Presence:
Presumed Extant	35
Possibly Extirpated	1
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA), Oregon (OR)

California Counties and Islands: Name (Code)
Humboldt (HUM)

Quads: Name (Quad Code)
Bald Hills (4112328), Fish Lake (4112336), French Camp Ridge (4112327), Holter Ridge (4112338), Hupa Mountain (4112317), Johnsons (4112337), Lord-ellis Summit (4012387), Maple Creek (4012377), Showers Mtn. (4012356), Tish Tang Point (4112315), Weitchpec (4112326), Willow Creek (4012386)

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