Lesquerella perforata - Rollins
Spring Creek Bladderpod
Synonym(s): Paysonia perforata (Rollins) OKane & Al-Shehbaz
Taxonomic Status: Accepted
Related ITIS Name(s): Lesquerella perforata Rollins (TSN 23218) ;Paysonia perforata (Rollins) O'Kane & Al-Shehbaz (TSN 823065)
Unique Identifier: ELEMENT_GLOBAL.2.137674
Element Code: PDBRA1N1A0
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 perforata
Conservation Status
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NatureServe Status

Global Status: G1
Global Status Last Reviewed: 27Dec1996
Global Status Last Changed: 09Apr1984
Rounded Global Status: G1 - Critically Imperiled
Reasons: This species is known only from Wilson County, Tennessee, in the vicinity of Lebanon, where it inhabits the floodplains of 2 creeks. There are only 4 populations known extant within this small area. The plants are very locally abundant at some sites, but commercial, residential, and industrial development pose a significant threat. Even though this species is disturbance-adapted, fall plowing and herbicide use could adversely affect the habitat.
Nation: United States
National Status: N1

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 Tennessee (S1)

Other Statuses

U.S. Endangered Species Act (USESA): LE: Listed endangered (23Dec1996)
U.S. Fish & Wildlife Service Lead Region: R4 - Southeast

NatureServe Global Conservation Status Factors

Range Extent Comments: Known only from Wilson County, Tennessee (U.S. Fish and Wildlife Service 1996).

Number of Occurrences: 1 - 5
Number of Occurrences Comments: Known from four populations consisting of 13 extant sites in Wilson County, Tennessee. Three additional sites no longer support the species. (U.S. Fish and Wildlife Service 1996)

Overall Threat Impact Comments: Lesquerella perforata is faced with imminent threats from loss of habitat to development and other uses incompatible with the species' survival, and by competing vegetation that is no longer controlled by natural flood regimes (U.S. Fish and Wildlife Service 1996).

Other NatureServe Conservation Status Information

Distribution
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Global Range: Known only from Wilson County, Tennessee (U.S. Fish and Wildlife Service 1996).

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 TN

Range Map
No map available.


U.S. Distribution by County Help
State County Name (FIPS Code)
TN Wilson (47189)
* Extirpated/possibly extirpated
U.S. Distribution by Watershed Help
Watershed Region Help Watershed Name (Watershed Code)
05 Lower Cumberland-Old Hickory Lake (05130201)+
+ Natural heritage record(s) exist for this watershed
* Extirpated/possibly extirpated
Ecology & Life History
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Basic Description: An annual herb with slender stems, 1-4 dm tall, radiating from the base. Leaves are hairy, grayish-green. Flowers are white (or pale lavender), cross-shaped, each having 4 spatula-shaped petals. Blooms in spring. Fruits are oval-shaped.
General Description: Plant a slender, erect annual mustard whose slender stems radiate from the base, 1-4 dm tall. Leaves hairy, grayish- green, simple and alternate on the stem. Flowers white (or pale lavender), cross-shaped, each having 4 spatula-shaped petals 0.75-2 cm long, petals with a narrow yellow spot at base. Fruit is an obovoid capsule, 4-6 mm long x 4 mm wide, 2-celled, with 2-6 round, flattened seeds in each cell.
Technical Description: Plant a slender, erect annual mustard whose slender stems radiate from the base, 1-4 dm tall. Leaves hairy, grayish- green, simple and alternate on the stem. Stem leaves narrowly oblong to oblanceolate, about 1-3 cm long x 0.5-0.75 cm wide, with toothed margins, some or all of the stem leaves with auriculate bases; basal leaves divided, 2-5 cm long, with pointed teeth. 2 Inflorescences are racemes; borne from short, spreading stalks on the raceme. Fruit is an obovoid capsule, 4-6 mm long x 4 mm wide, 2-celled, with 2-6 round, flattened seeds in each cell. Each capsule has scattered hairs on it, and a persistent style, as long as the capsule itself. A winter annual that germinates in the early fall, overwinters as a small rosette of leaves, and flowers the following spring.
Diagnostic Characteristics: This species is known only from Wilson County, Tennessee, in the vicinity of Lebanon, where it inhabits the floodplains of Spring Creek and Bartons Creek.
Palustrine Habitat(s): HERBACEOUS WETLAND
Terrestrial Habitat(s): Bare rock/talus/scree, Cropland/hedgerow, Old field
Habitat Comments: Found mainly where sites have been disturbed by flooding or by cultivation, and tends to occur in areas of full sun on well-drained soils, as well as (rarely) on limestone rock outcrops. Most historic and current occurrences are on flood plains, where periodic flooding removes encroaching grasses and woody plants. Also occurs in places where other types of disturbances "substitute," such as on annually cultivated bottom land fields.
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: 26Nov1996
NatureServe Conservation Status Factors Author: M. Pyne & K. Maybury, rev. G. Thunhorst (1996)

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
Help
  • 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.

  • 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.

  • Kral, R. 1983a. A report on some rare, threatened or endangered forest related vascular plants of the south. USFS technical publication R8-TP2, Atlanta, GA. Vol. 1: 718 pp.

  • Kral, R. 1983c. A report on some rare, threatened, or endangered forest-related vascular plants of the South. U.S. Dept. of Agriculture Forest Service Technical Publication R8-TP2, Athens, GA. 1305 pp.

  • O'Kane, S. L. and I. A. Al-Shehbaz. 2002. Paysonia a new genus segregated from Lesquerella (Brassicaeae). Novon 12:379-381.

  • O'Kane, Steve L. , Jr. and Ihsan A. Al-Shehbaz Paysonia, a New Genus Segregated from Lesquerella (Brassicaceae) Novon, Vol. 12, No. 3 (Autumn, 2002), pp. 379-381

  • Pyne, M., M. Gay, and A. Shea. 1995. Guide to rare plants - Tennessee Division of Forestry District 5. Tennessee Dept. Agriculture, Division of Forestry, Nashville.

  • 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.

  • U.S. Fish and Wildlife Service (USFWS). 1994. Proposed endangered status for Lesquerella perforata (Spring Creek bladderpod). Federal Register 59(162): 43322-43326.

  • U.S. Fish and Wildlife Service (USFWS). 1996. Determination of endangered status for Lesquerella perforata (Spring Creek bladderpod). Federal Register 61(247):67493-67497.

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