Lesquerella klausii - Rollins
Klaus' Bladderpod
Synonym(s): Physaria klausii (Rollins) O'Kane & Al-Shehbaz
Taxonomic Status: Accepted
Related ITIS Name(s): Lesquerella klausii Rollins (TSN 503412)
Unique Identifier: ELEMENT_GLOBAL.2.139165
Element Code: PDBRA1N1Z0
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 klausii
Conservation Status
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NatureServe Status

Global Status: G3
Global Status Last Reviewed: 02Sep2009
Global Status Last Changed: 16Dec1988
Rounded Global Status: G3 - Vulnerable
Reasons: State endemic restricted to central-Montana with the majority of populations occurring in the Big Belt Mountains and extending north to the southern end of the Rocky Mountain Front. Many large populations exist and the species typically occurs on gravelly slopes that are not usually subject to human disturbance. Overall, threat to this species are considered low, although population trends are unknown.
Nation: United States
National Status: N3

U.S. & Canada State/Province Status
United States Montana (S3)

Other Statuses

NatureServe Global Conservation Status Factors

Range Extent Comments: Montana endemic, restricted to Broadwater, Lewis and Clark, and Meagher Counties.

Number of Occurrences: 21 - 80
Number of Occurrences Comments: There are about 40 documented occurrences, and reports of others since the species was dropped from tracking. during field surveys in 1986, fourteen in 1987.

Population Size Comments: Approximately 17,000-18,000 plants observed to date.

Overall Threat Impact Comments: Some occurrences are potentially threatened by off-road vehicle use, road construction, and accompanying noxious weed invasion; many occurrences on steep or inaccessible slopes.

Short-term Trend: Unknown
Short-term Trend Comments: Appears stable.

Long-term Trend: Unknown

Intrinsic Vulnerability Comments: Fairly resilient.

Other NatureServe Conservation Status Information

Distribution
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Global Range: Montana endemic, restricted to Broadwater, Lewis and Clark, and Meagher Counties.

U.S. States and Canadian Provinces
Color legend for Distribution Map

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

Range Map
No map available.


U.S. Distribution by County Help
State County Name (FIPS Code)
MT Broadwater (30007), Lewis and Clark (30049), Meagher (30059)
* Extirpated/possibly extirpated
U.S. Distribution by Watershed Help
Watershed Region Help Watershed Name (Watershed Code)
10 Upper Missouri (10030101)+, Upper Missouri-Dearborn (10030102)+, Smith (10030103)+
17 Blackfoot (17010203)+
+ Natural heritage record(s) exist for this watershed
* Extirpated/possibly extirpated
Ecology & Life History
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Basic Description: Yellow-flowered plant, Brassicaceae.
Habitat Comments: Open gravel slides or shale-talus slopes, and open soil of slopes and ridges at mid- to high elevations (4000-8000').
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: 18Jan1989
NatureServe Conservation Status Factors Author: Shelly, J.S., rev. B. Heidel (1999), rev. S. Mincemoyer (2007)

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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  • Al-Shehbaz, I. A., and S. L. O'Kane. 2002. Lesquerella is united with Physaria (Brassicaceae). Novon 12:319-329.

  • 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. L. and S. V. Cooper. 1998. Botanical survey of the Scratchgravel Hills, Lewis and Clark County, Montana. Unpublished report to the Bureau of Land Management. Montana Natural Heritage Program, Helena, Montana. 44 pp. + appendices.

  • 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.

  • Kartesz, J.T. 1999. A synonymized checklist and atlas with biological attributes for the vascular flora of the United States, Canada, and Greenland. First edition. In: Kartesz, J.T., and C.A. Meacham. Synthesis of the North American Flora, Version 1.0. North Carolina Botanical Garden, Chapel Hill, N.C.

  • Mincemoyer, S. 2005. Surveys of significant plant resources and related vegetation types for the Butte Office of the Bureau of Land Management. Montana Natural Heritage Program, Helena, MT. 11 pp + appendices.

  • Poole, J. M. and B. L. Heidel. 1993. Sensitive plant surveys in the Big Belt and Elkhorn Mountains, Helena National Forest, Montana. Unpublished report to the Helena National Forest. Montana Natural Heritage Program. Helena, MT. 129 pp. plus printouts, maps.

  • Rollins, R. C. 1984. Studies in the Cruciferae of western North America II. Contributions Gray Herbarium 214:1-18.

  • Rollins, R. C. 1993. The Cruciferae of Continental North America: systematics of the mustard family from the Arctic to Panama. Stanford University Press, Stanford, California. 976 pp.

  • Shelly, J. S. 1988. Status review of LESQUERELLA KLAUSII, U.S. Forest Service, Region 1, Helena and Lewis & Clark National Forests. Unpublished report to U.S. Forest Service, Region 1, Missoula. Montana Natural Heritage Program, Helena, MT. 82 pp.

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