Lesquerella fremontii - Rollins & Shaw
Fremont's Bladderpod
Other Common Names: Fremont's bladderpod
Synonym(s): Physaria fremontii (Rollins & Shaw) O'Kane & Al-Shehbaz
Taxonomic Status: Accepted
Related ITIS Name(s): Lesquerella fremontii Rollins & Shaw (TSN 23182)
Unique Identifier: ELEMENT_GLOBAL.2.151360
Element Code: PDBRA1N0L0
Informal Taxonomy: Plants, Vascular - Flowering Plants - Mustard Family
 
Kingdom Phylum Class Order Family Genus
Plantae Anthophyta Dicotyledoneae Capparales Brassicaceae Lesquerella
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Concept Reference
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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.
Concept Reference Code: B94KAR01HQUS
Name Used in Concept Reference: Lesquerella fremontii
Taxonomic Comments: Distinct species.
Conservation Status
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NatureServe Status

Global Status: G2
Global Status Last Reviewed: 02Nov2012
Global Status Last Changed: 06Feb1990
Ranking Methodology Used: Ranked by calculator
Rounded Global Status: G2 - Imperiled
Reasons: Endemic to the southeastern Wind River Range in Fremont County, Wyoming. There are 10 extant occurrences. Primary threats are localized quarrying for limestone or prospective noxious weed encroachment.
Nation: United States
National Status: N2

U.S. & Canada State/Province Status
Due to latency between updates made in state, provincial or other NatureServe Network databases and when they appear on NatureServe Explorer, for state or provincial information you may wish to contact the data steward in your jurisdiction to obtain the most current data. Please refer to our Distribution Data Sources to find contact information for your jurisdiction.
United States Wyoming (S2)

Other Statuses

NatureServe Global Conservation Status Factors

Range Extent Comments: Endemic to the east slope of the Wind River Range and Sweetwater Plateau in Fremont County, Wyoming. The total known range of the species has been estimated at 1080 acres, but does not including major expansions of known populations documented in 2004.

Number of Occurrences: 6 - 20
Number of Occurrences Comments: Known from 10 extant occurrences in Wyoming, most of which have been discovered or relocated since 1993 (last observed in 2005) and 3 historical records (most recent in 1947). In addition, botanists failed to relocate one 1978 record. In the past, several additional records were recognized, but many of these were combined following surveys that found them to be essentially confluent (Fertig 1995).

Population Size Comments: Populations tend to be extensive but discontinuous across landscape, and inconspicuous. Total population size was estimated 40,000-50,000 individuals by Fertig in 1994 and at 56,800-107,200 in 2004 by Heidel and Handley in 2004 based on expanded surveys. The latter does not include medium to large population expansions discovered by Scott in 2004.

Number of Occurrences with Good Viability/Integrity: Few (4-12)
Viability/Integrity Comments: At least 5 occurrences with A/B EO ranks.

Overall Threat Impact Comments: Potentially threatened by limestone quarrying, road construction and off-road vehicles. These are localized threats, and monitoring suggests that the species persists or increases under some roadwork activity. The effects of fire on habitat are unknown and the spread of non-native competing species like cheatgrass is possible at lower elevations.

Short-term Trend: Decline of <30% to relatively stable
Short-term Trend Comments: Possibly stable. Some subpopulations have been lost due to road expansion and quarrying but expansions of subpopulations and new subpopulations have also been documented on roadcuts.

Long-term Trend: Decline of 30-50%

Intrinsic Vulnerability Comments: Short-lived, adapted to harsh climate, and fairly resistant.

Environmental Specificity: Narrow. Specialist or community with key requirements common.
Environmental Specificity Comments: Concentrated on limestone outcrops; present in lower densities in other sparsely-vegetated settings.

Other NatureServe Conservation Status Information

Distribution
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Global Range: Endemic to the east slope of the Wind River Range and Sweetwater Plateau in Fremont County, Wyoming. The total known range of the species has been estimated at 1080 acres, but does not including major expansions of known populations documented in 2004.

U.S. States and Canadian Provinces

Due to latency between updates made in state, provincial or other NatureServe Network databases and when they appear on NatureServe Explorer, for state or provincial information you may wish to contact the data steward in your jurisdiction to obtain the most current data. Please refer to our Distribution Data Sources to find contact information for your jurisdiction.
Color legend for Distribution Map

U.S. & Canada State/Province Distribution
United States WY

Range Map
No map available.


U.S. Distribution by County Help
State County Name (FIPS Code)
WY Fremont (56013)
* Extirpated/possibly extirpated
U.S. Distribution by Watershed Help
Watershed Region Help Watershed Name (Watershed Code)
10 Upper Wind (10080001)+, Little Wind (10080002)+, Popo Agie (10080003)+, Sweetwater (10180006)+
+ Natural heritage record(s) exist for this watershed
* Extirpated/possibly extirpated
Ecology & Life History
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Basic Description: A perennial, gray-hairy herb with decumbent stems, 5-15 cm long. Basal leaves are 1.5-4 cm long, elliptic to diamond-shaped; stem leaves are narrower and shorter. Yellow flowers bloom in May and June. Fruits are inflated, elliptic.
Duration: PERENNIAL
Terrestrial Habitat(s): Bare rock/talus/scree, Grassland/herbaceous, Savanna, Shrubland/chaparral
Habitat Comments: Rocky limestone slopes and ridges in cushion plant-bunchgrass (Festuca idahoensis) communities and in montane meadows with scattered limber pine (Pinus flexilis). Often associated with three-tip sagebrush (Artemisia tripartita).
Economic Attributes
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Economically Important Genus: Y
Management Summary Not yet assessed
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Population/Occurrence Delineation Not yet assessed
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Population/Occurrence Viability
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U.S. Invasive Species Impact Rank (I-Rank) Not yet assessed
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Authors/Contributors
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NatureServe Conservation Status Factors Edition Date: 07Nov2012
NatureServe Conservation Status Factors Author: Fertig (rev. Fertig/Maybury 6/96); Heidel edit (2007-02-10), Oliver, L. and B. Heidel (rev. 2012)

Botanical data developed by NatureServe and its network of natural heritage programs (see Local Programs), The North Carolina Botanical Garden, and other contributors and cooperators (see Sources).

References
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  • Andersen, M.D. and B. Heidel. 2011. HUC-based species range maps. Prepared by Wyoming Natural Diversity Database for use in the pilot WISDOM application operational from inception to yet-to-be-determined date of update of tool.

  • Clark, T. W. and R. D. Dorn. 1979. Rare and endangered vascular plants and vertebrates of Wyoming. Published by the authors.

  • Clark, T.W., and R.D. Dorn. 1979. Rare and endangered vascular plants and vertebrates of Wyoming. Published by the authors. 78 pp.

  • Dorn, R. D. 1992. Vascular Plants of Wyoming, second edition. Mountain West Publishing, Cheyenne, WY.

  • Dorn, R. D. 2001. Vascular Plants of Wyoming, third edition. Mountain West Publishing, Cheyenne, WY.

  • Dorn, R.D. 1988. Vascular plants of Wyoming. Mountain West Publishing, Cheyenne, WY. 340 pp.

  • Evert, E. F. 2010. Vascular Plants of the Greater Yellowstone Area: Annotated Catalog and Atlas. Park Ridge, IL.

  • Fertig, W. 2000. State Species Abstract: Lesquerella fremontii. Wyoming Natural Diversity Database. Available on the internet at www.uwyo.edu/wyndd.

  • Fertig, W. 2003. Annotated checklist of the flora of Wyoming, 3 November update of Version 6.0. Kanab, UT.

  • Fertig, W. 1993. U. S. Fish and Wildlife Service candidate plant species of Wyoming. Unpublished report prepared for Wyoming Weed and Pest Supervisor's meeting in Cody, WY, March 1993.

  • Fertig, W. 1994. Guide to Sensitive Wyoming plants of US Forest Service Region 2 (with emphasis on plants of Bighorn, Medicine Bow, and Shoshone National Forests). Unpublished report prepared as a handout for the TES species identification workshop conducted for US Forest Service Region 2 in Laramie, WY, 11 May 1994.

  • Fertig, W. 1995. Plants of The Nature Conservancys Red Canyon Ranch. Unpublished report prepared for the Wyoming Nature Conservancy by the Wyoming Natural Diversity Database, Laramie, WY.

  • Fertig, W. 1995. Report on the potential vulnerability of Shoshone National Forest Candidate and Sensitive plant species to livestock grazing. Unpublished report prepared for the Shoshone National Forest by the Wyoming Natural Diversity Database, Laramie, WY.

  • Fertig, W. 1995. Status report on Lesquerella fremontii in central Wyoming. Unpublished report prepared for the Bureau of Land Management Wyoming State Office and Rawlins District by the Wyoming Natural Diversity Database, Laramie, WY.

  • Fertig, W. 1995g. Status report on Lesquerella fremontii in central Wyoming. Unpublished report prepared foe the Bur. Land Management, Wyoming State Office and Rawlins District by the Wyoming Natural Diversity Database, Laramie. 68 pp.

  • Fertig, W. 1997. Plant species of special concern on Shoshone National Forest: 1996 survey results. Unpublished report prepared by the Wyoming Natural Diversity Database, Laramie, WY.

  • Fertig, W. 1998. The status of rare plants on Shoshone National Forest: 1995-97 survey results. Unpublished report prepared for the Shoshone National Forest by the Wyoming Natural Diversity Database, Laramie, WY.

  • Fertig, W. 2000. Rare vascular plant species in the Wyoming portion of the Utah-Wyoming Rocky Mountains Ecoregion. Prepared for the Wyoming Nature Conservancy by the Wyoming Natural Diversity Database, Laramie, WY.

  • Fertig, W., C. Refsdal, and J. Whipple. 1994. Wyoming Rare Plant Field Guide. Wyoming Rare Plant Technical Committee, Cheyenne, WY.

  • Fertig, W., C. Refsdal, and J. Whipple. 1994. Wyoming rare plant field guide. Wyoming Rare Plant Technical Committee, Cheyenne. No pagination.

  • Flora of North America Editorial Committee. 2010. Flora of North America North of Mexico. Vol. 7. Magnoliophyta: Salicaceae to Brassicaceae. Oxford University Press, New York. xxii + 797 pp.

  • Heidel, B. and J. Handley. 2004. Lesquerella fremontii Rollins & Shaw (Fremont's bladderpod): A Technical Conservation Assessment. USDA Forest Service, Rocky Mountain Region. http://www.fs.fed.us/r2/projects/scp/assessments/Lesquerellafremontii.pdf.

  • Houston, K.E., W.J. Hartung and C.J. Hartung. 2001. A field guide for forest indicator plants, sensitive plants, and noxious weeds of the Shoshone National Forest, Wyoming. Gen. Tech. Rep. RMRS-GTR-84, Ogden, UT: USDA Forest Service Rocky Mountain Research Station.

  • Jones, G. P. and W. Fertig. 1999. Ecological evaluation of the potential Arrow Mountain Research Natural Area within the Shoshone National Forest, Fremont County, Wyoming. Unpublished report prepared for the Shoshone National Forest, USDA Forest Service by the Wyoming Natural Diversity Database, Laramie, WY.

  • 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.

  • Keenlyne, K.D. 1977. Special Report Number 3: Endangered or Threatened Species in Wyoming. US Fish and Wildlife Service, Casper, WY. 48 pp.

  • Lichvar, R. W. and R. D. Dorn. 1980. Noteworthy collections. Madroņo 27:140-141.

  • Mills, S. and W. Fertig. 1996. Field guide to rare and Sensitive plants of the Shoshone National Forest. Report prepared by the Wyoming Natural Diversity Database, Laramie, WY.

  • Mills, S. and W. Fertig. 1996. Survey of plant species of special concern on the Shoshone National Forest, 1995. Unpublished report prepared for Shoshone National Forest by the Wyoming Natural Diversity Database, Laramie, WY.

  • Rollins, R. C. 1993. The Cruciferae of Continental North America: Systematics of the Mustard Family from the Arctic to Panama. Stanford University Press, Stanford, CA.

  • Rollins, R. C. and E. A. Shaw. 1973. The Genus Lesquerella (Cruciferae) in North America. Harvard University Press, Cambridge, MA.

  • Rollins, R.C. 1993a. The Cruciferae of continental North America: Systematics of the mustard family from the Arctic to Panama. Stanford Univ. Press, Stanford, California. 976 pp.

  • Rollins, R.C., and E.A. Shaw. 1973. The genus Lesquerella (Cruciferae) in North America. Harvard Univ. Press. Cambridge, MA. 288 pp.

  • Scott, R. and B. Scott. 2003. On the distribution of Lesquerella fremontii Rollins and Shaw in the Sinks Canyon area, Fremont County, Wyoming: preliminary results of an early June survey. Unpublished report to Shoshone National Forest. Fremont County Weed Board, Riverton.

  • Welp, L. A. 1997. A floristic survey of the Great Divide Basin, Green Mountains, and Upper Sweetwater Plateau in southwest Wyoming. Masters Thesis. Department of Botany, University of Wyoming, Laramie WY.

  • Welp, L., B. E. Nelson, and R. L. Hartman. 1996. General floristic inventory of the Great Divide Basin, Green and Crooks Mountains, and Upper Sweetwater River drainage, final report. Unpublished report prepared for the Bureau of Land Management Rock Springs District and Great Divide Resource Area by the Rocky Mountain Herbarium, University of Wyoming, Laramie, WY.

  • Welp, L., W.F. Fertig, G.P. Jones, G.P. Beauvais, and S.M. Ogle. 2000. Fine filter analysis of the Bighorn, Medicine Bow, and Shoshone National Forests in Wyoming. Wyoming Natural Diversity Database, Laramie, WY.

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