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Townsendia aprica

Welsh & Reveal

Last Chance Townsend-daisy

G2Imperiled Found in 28 roadless areas NatureServe Explorer →
G2ImperiledGlobal Rank
Very high - highThreat Impact
Identity
Unique IDELEMENT_GLOBAL.2.145298
Element CodePDAST9C030
Record TypeSPECIES
ClassificationSpecies
Classification StatusNonstandard
Name CategoryVascular Plant
Endemicendemic to a single state or province
KingdomPlantae
PhylumAnthophyta
ClassDicotyledoneae
OrderAsterales
FamilyAsteraceae
GenusTownsendia
Other Common Names
Last Chance Townsend daisy (EN) Last Chance Townsendia (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
Townsendia jonesii var. lutea is treated within the synonymy of T. aprica by Kartesz (1999) and FNA (2006); in his 1994 checklist, Kartesz had recognized both of these taxa.
Conservation Status
Rank MethodLegacy Rank calculation - Excel v3.1x
Review Date2016-04-29
Change Date2001-02-12
Edition Date2016-04-29
Edition AuthorsRoth, E.(1988), rev. B. Franklin (1996), rev. A. Treher (2016)
Threat ImpactVery high - high
Range Extent1000-20,000 square km (about 400-8000 square miles)
Number of Occurrences21 - 80
Rank Reasons
A narrow endemic of south-central Utah that is known from 23 populations. The total number of individuals is approximately 6,500. The species has low seed set and has also seen declines over the last 20 years due to unfavorable climatic conditions. The biggest threats to the species are coal mining and gas exploration and cattle grazing.
Range Extent Comments
A narrow endemic of south-central Utah in Emery, Sevier, and Wayne counties (USFWS 2013).
Occurrences Comments
The USFWS (2013) reports 23 populations (which do directly crosswalk to NatureServe's Element Occurrences).
Threat Impact Comments
Threats include coal mining and oil and gas exploration, ORVs, cattle grazing and trampling, damage from wild burros, and highway construction. The most serious threats at this time are coal mining and gas exploration and cattle grazing. Most sites have 2-3 threats per site.
Ecology & Habitat

Habitat

Pinyon-juniper and salt desert shrub communities on barren, silty, silty clay, or gravelly clay soils of the Mancos Shale Formation at 1695-2440 m elevation.
Terrestrial Habitats
Forest/WoodlandWoodland - ConiferShrubland/chaparralDesert
Other Nations (1)
United StatesN2
ProvinceRankNative
UtahS2Yes
Threat Assessments
ThreatScopeSeverityTiming
2 - Agriculture & aquaculturePervasive (71-100%)Serious - slightHigh (continuing)
2.3 - Livestock farming & ranchingPervasive (71-100%)Serious - slightHigh (continuing)
3 - Energy production & miningLarge (31-70%)Serious - moderateHigh (continuing)
3.1 - Oil & gas drillingSmall (1-10%)Serious - moderateHigh (continuing)
3.2 - Mining & quarryingPervasive - largeSerious - slightHigh - moderate
4 - Transportation & service corridorsLarge (31-70%)Serious - slightHigh (continuing)
4.1 - Roads & railroadsLarge (31-70%)Serious - slightHigh (continuing)
6 - Human intrusions & disturbanceSmall (1-10%)Serious - moderateHigh (continuing)
6.1 - Recreational activitiesSmall (1-10%)Serious - slightHigh (continuing)
8 - Invasive & other problematic species, genes & diseasesSmall (1-10%)Extreme - moderateHigh (continuing)
8.1 - Invasive non-native/alien species/diseases———

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Plant Characteristics
DurationPERENNIAL, Short-lived
Economic Value (Genus)No
Roadless Areas (28)
South Dakota (1)
AreaForestAcres
Indian CreekBuffalo Gap National Grassland24,666
Utah (27)
AreaForestAcres
Boulder Mtn. / Boulder Top / Deer LakeDixie National Forest110,690
Boulder Mtn. / Boulder Top / Deer LakeDixie National Forest110,690
Bull ValleyFishlake National Forest10,594
Capital ReefDixie National Forest763
Dark ValleyDixie National Forest27,481
Dark ValleyDixie National Forest27,481
Fishlake MountainFishlake National Forest25,217
Happy ValleyDixie National Forest14,458
Hilgard MountainFishlake National Forest28,389
Hilgard MountainFishlake National Forest28,389
Long Neck Mesa / Steep Creek / Oak Creek - Steep Creek / OakDixie National Forest55,489
Lookout PeakFishlake National Forest9,195
Mcdonald BasinFishlake National Forest1,585
Mt. ArvineFishlake National Forest6,054
Mt. Johns Peak - Mt AliceFishlake National Forest12,469
Mt. Johns Peak - Mt AliceFishlake National Forest12,469
Mt. Um Plateau - Mt TerrillFishlake National Forest17,490
Muddy Creek - Nelson Mt.Manti-Lasal National Forest59,034
MytogeFishlake National Forest8,286
Solomon BasinFishlake National Forest19,963
Solomon BasinFishlake National Forest19,963
Steves MountainFishlake National Forest22,649
Thousand Lake MountainFishlake National Forest27,267
Thousand Lake MountainFishlake National Forest27,267
Wayne WonderlandFishlake National Forest12,395
Wayne WonderlandFishlake National Forest12,395
White MountainFishlake National Forest23,939
References (9)
  1. Armstrong, L., and K.H. Thorne. 1991. Challenge Cost Share report for Bureau of Land Management. Target species: Townsendia aprica Welsh & Reveal. Unpublished report on file Utah Natural Heritage Program, Salt Lake City. 13 pp + appendices.
  2. Cronquist, A. 1994. Asterales. In A. Cronquist, A.H. Holmgren, N.H. Holmgren, J.L. Reveal, and P.K. Holmgren. Intermountain flora: Vascular plants of the Intermountain West, U.S.A. Vol. 5. New York Botanical Garden, Bronx. 496 pp.
  3. England, J.L. 1993. Last Chance townsendia (Townsendia aprica) recovery plan. U.S. Fish and Wildlife Service, Denver, Colorado. 18 pp.
  4. 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.
  5. Lowe, D.W., J.R. Matthews, and C.J. Moseley, eds. 1990. The official World Wildlife Fund guide to endangered species of North America. Beacham Publishing, Washington, D.C. 1180 pp.
  6. U.S. Fish and Wildlife Service (USFWS). 1985. Rule to determine <i>Townsendia aprica</i> (last chance townsendia) to be a threatened species. Federal Register 50(162): 33734-33737.
  7. U.S. Fish and Wildlife Service (USFWS). 2013. <i>Townsendia aprica </i>(Last Chance townsendia) 5-Year Review. U.S. Fish and Wildlife Service, Utah Field Office, Salt Lake City, Utah. 70 pp.
  8. Welsh, S.L. 1979. Illustrated manual of proposed endangered and threatened plants of Utah. Brigham Young Univ., Provo, UT. 318 pp.
  9. 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.