M.E. Jones
Identity
Unique IDELEMENT_GLOBAL.2.151317
Element CodePDAST9C0G0
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
Endemicendemic to a single state or province
KingdomPlantae
PhylumAnthophyta
ClassDicotyledoneae
OrderAsterales
FamilyAsteraceae
GenusTownsendia
Concept ReferenceKartesz, 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
Rank Method Rank calculation - Biotics v2
Review Date2021-11-23
Change Date2021-11-23
Edition Date2021-11-23
Edition AuthorsMcCormick, M.
Threat ImpactHigh
Range Extent5000-20,000 square km (about 2000-8000 square miles)
Number of Occurrences6 - 20
Rank ReasonsA regional endemic in Duchesne and Uintah counties, Utah (1800 sq. mi.), with an estimated 30+ collection-based sites. Threatened by oil and gas drilling, oil shale and sand tar development and ongoing drought.
Range Extent CommentsEndemic to the Uinta Basin of northeastern Utah in southern Duchesne and central Uintah counties. It is in the Bridger Basin Ecoregion (UTHP 1999, Welsh et al. 1993).
Occurrences CommentsThe number of sites is unknown, however, many are element occurrences are from single observations.
Threat Impact CommentsPotential threats may result from the extensive oil and gas exploration and development that is prevalent through much of its habitat. Many sites occur on lands patented for oil shale and tar sand mining. The ridge above Argyle Canyon is a potential future wind power site. Many occurrences are within active grazing allotments, however, this threat is considered low due to the steep habitat where the taxon occurs (UNHP 2021). Ongoing drought is also a threat as the Utah Divsion of Water Resources consider the state in an 'extreme' or 'exceptional' drought.