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Penstemon tidestromii

Pennell

Tidestrom Beardtongue

G2Imperiled (G2G3) Found in 1 roadless area NatureServe Explorer →
G2ImperiledGlobal Rank
High - mediumThreat Impact
Identity
Unique IDELEMENT_GLOBAL.2.148999
Element CodePDSCR1L690
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
Endemicendemic to a single state or province
KingdomPlantae
PhylumAnthophyta
ClassDicotyledoneae
OrderPlantaginales
FamilyPlantaginaceae
GenusPenstemon
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
Rank Method Rank calculation - Biotics v2
Review Date2021-12-06
Change Date1999-01-22
Edition Date2021-11-17
Edition AuthorsRoth, E., rev. C. Russell, rev. B. Franklin (1996), rev. L. Ballard (2015), rev. M. McCormick (2021)
Threat ImpactHigh - medium
Range Extent1000-5000 square km (about 400-2000 square miles)
Number of Occurrences21 - 80
Rank Reasons
Endemic to Juab and Sanpete Counties of central Utah. This species is threatened by sheep grazing and reclamation projects. Numerous historical occurrences need to be revisited in order to establish current population numbers.
Range Extent Comments
Endemic to the San Pitch Mountains in Sanpete and Juab Counties, Utah. May also occur in Utah County (Spahr et al. 1991). Penstemon tidestromii occurs in desert shrub, sagebrush and pinyon-juniper forest communities on Jurassic Arapien Shale and is considered a Utah Great Basin endemic (Welsh et al. 2015).
Occurrences Comments
Known from 22 occurrences (as of 2015). Most populations are along foothills of San Pitch Mountains in Sanpete and Juab Counties, Utah, although there is one known populations in Millard County. There is one herbarium collection collected in 2014 that likely represents a new site (BRY). However, about 8 sites are likely historic or extirpated.
Threat Impact Comments
Reclamation projects and grazing threaten this species. Heavy sheep grazing occurs within its habitat (Utah Rare Plant Database 2021).
Ecology & Habitat

Habitat

Pinyon-juniper, oakbrush, and sagebrush-grass communities on gravelly soils at 1646 to 2469 m elevation.
Terrestrial Habitats
Forest/WoodlandWoodland - ConiferShrubland/chaparralDesert
Other Nations (1)
United StatesN2
ProvinceRankNative
UtahS2Yes
Threat Assessments
ThreatScopeSeverityTiming
2 - Agriculture & aquacultureLarge (31-70%)Serious - moderateHigh (continuing)
2.3 - Livestock farming & ranchingLarge (31-70%)Serious - moderateHigh (continuing)
6 - Human intrusions & disturbanceRestricted - smallModerate - slightHigh (continuing)

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Plant Characteristics
Economic Value (Genus)No
Roadless Areas (1)
Utah (1)
AreaForestAcres
North PavantFishlake National Forest53,262
References (8)
  1. Cronquist, A., A.H. Holmgren, N.H. Holmgren, J.L. Reveal, and P.K. Holmgren. 1984. Intermountain Flora: Vascular Plants of the Intermountain West, U.S.A. Vol. 4, Subclass Asteridae (except Asteraceae). New York Botanical Garden, Bronx. 573 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. Spahr, R., L. Armstrong, D. Atwood, and M. Rath. 1991. Threatened, endangered, and sensitive species of the Intermountain Region. U.S. Forest Service, Intermountain Region, Ogden, UT.
  4. Utah Native Plant Society (UNPS). 2003-2021. Utah rare plant guide. A.J. Frates editor/coordinator. Salt Lake City, UT. Utah Native Plant Society. Online. Available: https://www.utahrareplants.org (accessed 2021).
  5. Utah Natural Heritage Program. 2021. Utah Rare Plant Database (accessed 2021).
  6. Welsh, S.L. 1979. Illustrated manual of proposed endangered and threatened plants of Utah. Brigham Young Univ., Provo, UT. 318 pp.
  7. 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.
  8. Welsh, S.L., N.D. Atwood, S. Goodrich, and L.C. Higgins. (Eds). 2015. A Utah flora, fifth edition, revised 2015. Monte L. Bean Life Science Museum, Provo, Utah. 987 pp.