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Home/Species/ Utah Milkweed

Asclepias labriformis

M.E. Jones

Utah Milkweed

G3Vulnerable Found in 2 roadless areas NatureServe Explorer →
G3VulnerableGlobal Rank
Identity
Unique IDELEMENT_GLOBAL.2.158864
Element CodePDASC020W0
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
Endemicendemic to a single state or province
KingdomPlantae
PhylumAnthophyta
ClassDicotyledoneae
OrderGentianales
FamilyApocynaceae
GenusAsclepias
Other Common Names
Utah milkweed (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.
Conservation Status
Review Date2007-09-25
Change Date1996-12-02
Edition Date2007-07-27
Edition AuthorsStoner, N. (1993-06-23); rev. B. Franklin (7-07)
Range Extent5000-200,000 square km (about 2000-80,000 square miles)
Number of Occurrences21 - 80
Rank Reasons
A Utah endemic with a broad distribution across Utah's western Colorado Plateau and the Uinta Basin, with an estimated potential for 24 sites.
Range Extent Comments
A Utah endemic in Duchesne, Emery, Garfield, San Juan, Sevier, Uintah, Washington and Wayne counties. Restricted to the Utah's western Colorado Plateau and the Uinta Basin.
Occurrences Comments
No EOs have been mapped, however, based on the distribution map in Albee, et al. (1988) there are locations from across the state appearing separate enough to suspect the existence of, at the very least, 24 EOs. No field survey data are available.
Threat Impact Comments
No data.
Ecology & Habitat

Habitat

Sandy washes, canyons, and flats. Associated with saltbush (Atriplex sp.) and Mormon tea (Ephedra viridis var. viridis), mixed desert shrub, and pinyon-juniper at 1533 to 2330 meters (Welsh et al. 2003).
Terrestrial Habitats
Shrubland/chaparral
Other Nations (1)
United StatesN3
ProvinceRankNative
UtahS3Yes
Plant Characteristics
Economic Value (Genus)Yes
Roadless Areas (2)
Utah (2)
AreaForestAcres
0419020Ashley National Forest355,684
Long Neck Mesa / Steep Creek / Oak Creek - Steep Creek / OakDixie National Forest55,489
References (5)
  1. Albee, B.J., L.M. Shultz, and S. Goodrich. 1988. Atlas of the vascular plants of Utah. Utah Museum Natural History Occasional Publication 7, Salt Lake City, Utah. 670 pp.
  2. Fortner, D. 2003. State Director's Sensitive Plant Species List for Utah. USDI Bureau of Land Management, Instruction Memorandum No. UT 2003-027.
  3. 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.
  4. Welsh, S.L., N.D. Atwood, L.C. Higgins, and S. Goodrich, eds. 1987. A Utah Flora. Great Basin Naturalist Memoir 9: 1- 894. Brigham Young University, Provo, Utah. 894 pp.
  5. Welsh, S.L., N.D. Atwood, S. Goodrich and L.C. Higgins. (Eds.) 2003. A Utah Flora. 3rd edition. Brigham Young University, Provo, Utah, U.S.A. 912 pp.