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Home/Species/ Duchesne Milkvetch

Astragalus duchesnensis

M.E. Jones

Duchesne Milkvetch

G3Vulnerable Found in 1 roadless area NatureServe Explorer →
G3VulnerableGlobal Rank
Identity
Unique IDELEMENT_GLOBAL.2.144738
Element CodePDFAB0F330
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
KingdomPlantae
PhylumAnthophyta
ClassDicotyledoneae
OrderFabales
FamilyFabaceae
GenusAstragalus
Other Common Names
Duchesne milkvetch (EN)
Concept Reference
Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
Taxonomic Comments
Synonymous with Lonchophaca duchesnensis. The species superficially resembles A. convallarius but has more developed leaflets and longer pods.
Conservation Status
Review Date1998-05-21
Change Date1986-07-17
Edition Date1986-06-26
Edition AuthorsPeterson, J.S., rev. D. Atwood, rev. D. Gries (1998)
Range Extent<100-250 square km (less than about 40-100 square miles)
Number of Occurrences21 - 80
Rank Reasons
An Uinta Basin endemic, Astragalus duchesnensis is known from three counties in Utah and one in Colorado. Grazing is a threat, and mining for oil shale presents a potential threat to this taxon.
Range Extent Comments
An Uinta Basin endemic, occurs in Daggett, Duchesne, and Uintah Counties in Utah and in Moffatt County, Colorado (Welsh et al., 1993, and Weber and Whitman, 1996).
Occurrences Comments
Thirty known occurrences (1988).
Threat Impact Comments
Directly associated with areas to be mined for oil shale; grazing.
Ecology & Habitat

Habitat

Found in salt desert shrub and pinon-juniper communities on sandy and gravelly pediments such as sandy mesas or around sandstone or shale outcrops (Goodrich, 1986) from 1430 to 1830 m (Welsh, 1993).
Terrestrial Habitats
Woodland - ConiferDesert
Other Nations (1)
United StatesN3
ProvinceRankNative
ColoradoS1Yes
UtahS3Yes
Plant Characteristics
Economic Value (Genus)Yes
Roadless Areas (1)
Utah (1)
AreaForestAcres
0419020Ashley National Forest355,684
References (4)
  1. Goodrich, S., and E. Neese. 1986. Uinta Basin flora. U.S. Forest Service, Intermountain Region, Ogden, Utah. 320 pp.
  2. Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
  3. Weber, W.A., and R.C. Wittmann. 1996b. Colorado flora: Western slope. Univ. Press of Colorado, Niwot, Colorado. 496 pp.
  4. Welsh, S.L., N.D. Atwood, S. Goodrich, and L.C. Higgins (eds.) 1993. A Utah flora. 2nd edition. Brigham Young Univ., Provo, Utah. 986 pp.