Taxon Details

Astragalus pulsiferae var. pulsiferae

Pulsifer's milk-vetch

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Taxon Summary:

Astragalus pulsiferae var. pulsiferae, commonly known as Pulsifer's milk-vetch, is a perennial herb in the Fabaceae that is found in California and elsewhere. It occurs within Great Basin scrub, Lower montane coniferous forest, and Pinyon and juniper woodland, growing at elevations from 1300 to 1800 meters. Astragalus pulsiferae var. pulsiferae is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.

Scientific Name:
Astragalus pulsiferae Gray var. pulsiferae
Common Name:
Pulsifer's milk-vetch
Family: Fabaceae
Element Code: PDFAB0F783
USDA Plants Symbol: ASPUP5
Synonyms/Other Names:
Name Status: JEF, FNA, POWO,
IPNI, Tropicos
Lifeform: perennial herb
Blooming Period: May-Aug(Sep)
JFMAMJJASOND
Elevation:
1300 - 1800 meters
4265 - 5905 feet
General Habitats:
  • Great Basin scrub
  • Lower montane coniferous forest
  • Pinyon and juniper woodland
Microhabitat Details:
Microhabitat:
  • Granitic (usually)
  • Rocky (sometimes)
  • Sandy (sometimes)
Notes:
Need quads for SIE Co. Threatened by grazing and development. Considered critically imperiled in NV. See Proceedings of the American Academy of Arts and Sciences 10:69 (1874) for original description, and Memoirs of the New York Botanical Garden 13:970-972 (1964) and Rhodora 104(919):271-279 (2002) for taxonomic treatment.
Threats:
Taxonomy:
Threat List Total: 8
Total EOs % of EOs
EOs with Threat Listed: 17 63 %
THREAT LIST:
Other 7 25%
Road/trail construction/maint. 7 25%
Grazing 5 18%
Logging 2 7%
Foot traffic/trampling 2 7%
Total Occurrences: 27
Element Occurrence Ranks:
A B C D X U
5 3 4 0 0 15
Occurrence Status:
Historical >20 Years 20
Recent <=20 Years 7
Presence:
Presumed Extant 27
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA), Nevada (NV)
California Counties and Islands: Name (Code)
Lassen (LAS), Plumas (PLU)
Quads: Name (Quad Code)
Beckwourth Pass (3912071), Chilcoot (3912072), Constantia (3912081), Frenchman Lake (3912082), Genesee Valley (4012016), Reconnaissance Peak (3912073), Susanville (4012046)
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.
Presumed Extant
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