CPC National Collection Plant Profile

Lesquerella perforata

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CPC National Collection Plant Profile

Lesquerella perforata


Family: 
Brassicaceae  
Common Name: 
Spring Creek bladderpod
Author: 
Rollins
Growth Habit: 
Forb/herb
CPC Number: 
2512

Distribution
Protection
Conservation
References


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Lesquerella perforata is Fully Sponsored
Primary custodian for this plant in the CPC National Collection of Endangered Plants is: 
Kimberlie McCue, Ph.D. contributed to this Plant Profile.

 
Lesquerella perforata


Lesquerella perforata's common name, Spring Creek bladderpod, derives from the floodplain area in which it grows and the shape of its fruit. This rare plant is now known only from a small area within Tennessee's Central Basin. It's continued survival is threatened by practices that alter its habitat, including residential, commercial, or industrial development, livestock grazing, and encroachment of its habitat by woody and herbaceous perennials. (USFWS 1996)

This species is a lovely winter annual--it germinates in the early fall, spends its winters as a small rosette of leaves, and produces white to lavender flowers in March and April. Soon after these flowers wither, fruit matures and the plants die. Once mature, fruits split open, allowing their enclosed seeds to fall to the ground. Here, the seeds lie dormant until the fall, where this interesting life cycle begins again with seed germination. (USFWS 1996)

Distribution & Occurrence

State Range
  Tennessee
State Range of  Lesquerella perforata
Habitat
  Typically found growing on flood plains. Some sort of regular disturbance appears to be necessary for the survival of L. perforata. Some types of agricultural practice (i.e. row-crop cultivation) may provide disturbance at the appropriate time and be beneficial to the species. (USFWS 1996)

Often occurs with Echinacea tennesseensis, Juniperus virginiana, Petalostemon gattingeri, Sporobolus vaginiflorus, Dalea foliosa, Arabis perstellata ampla, Thuja occidentalis, and Picea rubens. (USFWS 1996)

Distribution
  Occurs within a small area in Wilson County in the vicinity of Lebanon, Tennessee. With one exception, all sites are within the flood plains of Spring and Bartons Creeks. One site is above the floodplain of Spring Creek. (USFWS 1996)

Number Left
  Thirteen extant sites which form a total of 4 populations. Populations can vary in size from year to year, from a few to many thousands of individuals. (USFWS 1996)

Protection

Global Rank:  
G1
 
12/27/1996
Guide to Global Ranks
Federal Status:  
LE
 
12/23/1996
Guide to Federal Status
Recovery Plan:  
No
 

State/Area Protection
  State/Area Rank Status Date  
  Tennessee S1 E 4/3/2001  

Conservation, Ecology & Research

Ecological Relationships
  None known.

Threats
  Habitat alteration
Residential, commercial, or industrial development
Livestock-grazing
Conversion of its limited habitat to pasture
Habitat encroachment by woody vegetation and herbaceous perennials
(USFWS 1996)

Current Research Summary
  Carol J. Baskauf, a researcher at Austin Peay State University, is studying the population genetics of this species (Baskauf 2001)

Current Management Summary
  None known.

Research Management Needs
  Determine appropriate techniques for habitat management
Study of the life history/biology of the species is needed

Ex Situ Needs
 

References

Books (Single Authors)

Rollins, R.C.; Shaw, E.A. 1973. The genus Lesquerella (Cruciferae) in North America. Cambridge, MA: Harvard University Press. 288p.

Electronic Sources

(2002). New York Botanical Garden--The Virtual Herbarium. [Searchable Web site] New York Botanical Garden. Fordham Road Bronx, New York. http://scisun.nybg.org:8890/searchdb/owa/wwwspecimen.searchform. Accessed: 2002.

Journal Articles

Rollins, R.C. 1988. A population of interspecific hybrids of Lesquerella cruciferae. Systematic Botany. 13, 1: 60-63.

USFWS. 1994. Proposed endangered status for Lesquerella perforata (Spring Creek bladderpod). Federal Register. 59, 162: 43322-43326.

USFWS. 1996. Determination of endangered status for Lesquerella perforata (Spring Creek bladderpod). Federal Register. 61, 247: 67493-67497.

Reports

Baskauf, C.J. 2001. Genetic (isozyme) survey of two endangered Lesquerella species. Final report to the Tennessee Department of Environment and Conservation.

Kral, R. 1983. A report on some rare, threatened, or endangered forest-related vascular plants of the South. Athens, GA: U.S. Dept. of Agriculture Forest Service. p.1305. U.S. Dept. of Agriculture Forest Service Technical.


  This profile was updated on 3/4/2010
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