Species Details

Astragalus pulsiferae var. suksdorfii

Suksdorf's milk-vetch

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Photo of Astragalus pulsiferae var. suksdorfii
©2013 Kirsten Bovee
Photo of Astragalus pulsiferae var. suksdorfii
Image by Anthony Baniaga
Photo of Astragalus pulsiferae var. suksdorfii
©2014 Sierra Pacific Industries
Scientific Name:
Astragalus pulsiferae Gray var. suksdorfii (Howell) Barneby
Common Name:
Suksdorf's milk-vetch
Family: Fabaceae
Element Code: PDFAB0F782
USDA Plants Symbol: ASPUS
Synonyms/Other Names:
Lifeform: perennial herb
Blooming Period: May-Aug
1300 - 2000 meters
4265 - 6560 feet
General Habitat:
  • Great Basin scrub
  • Lower montane coniferous forest
  • Pinyon and juniper woodland
General Micro Habitat:
Micro Habitat:
  • Gravelly
  • Rocky
  • Volcanic
Threatened by grazing, road widening, mining, competition, and timber harvest activities; potentially threatened by vehicles and development. State-listed as Endangered in WA.
Total Occurrences: 25
Element Occurrence Ranks:
8 11 3 0 0 3
Occurrence Status:
Historical >20 Years 4
Recent <=20 Years 21
Presumed Extant 25
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA), Washington (WA)
California Counties and Islands: Name (Code)
Lassen (LAS), Plumas (PLU), Shasta (SHA)
Quads: Name (Quad Code)
Almanor (4012122), Antelope Mtn. (4012058), Bogard Buttes (4012152), Chester (4012132), Manzanita Lake (4012155), Pine Creek Valley (4012151), Poison Lake (4012162), Stover Mtn. (4012133), Swains Hole (4012163), Thousand Lakes Valley (4012165), West of Snowstorm Mtn. (4012064)
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.


Presumed Extant
Counties   Quads
Original Description: Erythea 1:111 (1893)
Taxonomic Treatment: Memoirs of the New York Botanical Garden 13:968-971 (1964)
Taxonomic Treatment: Rhodora 104(919):271-279 (2002)
Species Account: Astragalus pulsiferae var. suksdorfii profile for potential Species of Conservation Concern evaluation (2017)