CNPS Inventory Plant Detail

Astragalus pulsiferae var. suksdorfii

Common Name:	Suksdorf's milk-vetch
Family:	Fabaceae
Synonyms:
Element Code:	PDFAB0F782
Full Name:	Astragalus pulsiferae Gray var. suksdorfii (Howell) Barneby
USDA PLANTS Symbol:	ASPUS

Biology
Lifeform: perennial herb Blooming Period: May - August Habitat: volcanic, gravelly, rocky. • Great Basin scrub • Lower montane coniferous forest • Pinyon and juniper woodland

Rarity Status
Rare Plant Rank: 1B.2 Rare, threatened, or endangered in California and elsewhere .2: Fairly endangered in California Federal Listing Status: Not Listed State Listing Status: Not Listed State Rank: S2.2 S2: Imperiled. .2: Threatened. Global Rank: G4T2 T2: Imperiled. G4: (species) Apparently secure, considering populations outside California.

Occurrence Data from DFG
California Natural Diversity Database

Total # of Known Element Occurrences: 18
Element Occurrence Ranks:

A B C D X U

3 9 3 0 1 2

Population Status:

Historic >20 yrs	Recent <=20 yrs
1	17

Presence:

Present Extant	Possibly Extirpated	Extirpated
17	1	0

Notes

Threatened by grazing, road widening, mining, competition, and timber harvest activities; potentially threatened by vehicles and development. State-listed as Endangered in WA. See Erythea 1:111 (1893) for original description, and Memoirs of the New York Botanical Garden 13:968-971 (1964) and Rhodora 104(919):271-279 (2002) for taxonomic treatment.
To submit rare plant observation data, use the CNDDB field survey form. Please see also the CNPS Rare Plant Data page.
Date Added: 1994-01-01
Last Update: 2010-03-15

Location

Elevation: 1300 - 2000 meters

California Endemic: no

States: California, Washington

California Counties and Islands: name (code)
Lassen (LAS), Modoc (MOD), Plumas (PLU), Shasta (SHA)

Quads: name (DWR code) USGS code
Squaw Valley Peak (603C) 40120A4, Almanor (606B) 40121B2, Chester (624C) 40121C2, Stover Mtn. (625D) 40121C3, Antelope Mtn. (641C) 40120E8, Poison Lake (642B) 40121F2, Bogard Buttes (642C) 40121E2, Pine Creek Valley (642D) 40121E1, Swains Hole (643A) 40121F3, Thousand Lakes Valley (644A) 40121F5, Manzanita Lake (644D) 40121E5, Ambrose Valley (676A) 41120B7, Lane Reservoir (676D) 41120A7

Notes:

Definitions of codes preceding a county and/or quad:
*		Presumed extirpated
?		Uncertain about distribution or identity
?*		Uncertain about distribution, but presumed extirpated if once present
(?)		Occurrence confirmed, but possibly extirpated

Species may be present in other areas where conditions are favorable.

Presumed Extant

Presumed Extirpated or Unknown

1583

Links to Leading Resources of Taxon Information
USDA PLANTS Calflora CalPhotos Consortium of California Herbaria California Department of Fish and Wildlife: CNDDB Quick Viewer

Suggested Citation
California Native Plant Society (CNPS). Inventory of Rare and Endangered Plants (online edition, v8-02). California Native Plant Society. Sacramento, CA. Accessed on .

-121.0,40.5