The following Participating Institutions are custodians for this species in the CPC National Collection:
Missouri Botanical Garden
The conservation of Lesquerella stonensis is fully sponsored.
Kimberlie McCue, Ph.D. contributed to this Plant Profile.
The Stones River bladderpod is a showy member of the mustard family, producing fragrant white flowers. This rare annual requires habitat disturbance in order to complete its life-cycle. Historically, the floodplain habitat it was found in was maintained by regular flooding, which removed competitive perennial grasses and woody plants. With alterations to the waterways where this species occurs, flooding no longer maintains the habitat this plant needs. Now, ironically, further alteration to the environment is keeping this plant alive, as annual crop production is the primary way to artificially maintain the habitat this species needs--as long as there is no fall planting or herbicide use.
In some years the plant is quite abundant locally, but virtually absent in others. A persistent seed bank seems to be important in the persistence of this plant within its narrow range in the floodplains of the Stones River.
Distribution & Occurrence
Open areas of the Stones River floodplain--primarily in disturbed areas such as pastures, agricultural fields and roadsides. (USFWS 1999)
|The number of sites with plants evident above ground varies from year to year. There are only a few sites that seem to be well established, however, in some years up to 20 sites can be found with plants extant. (USFWS 1999)|
Conservation, Ecology & Research
Loss of habitat through land conversion (via residential, commercial, or industrial development)
A three year monitoring program was completed in 1997. Sites studied were on the U.S. Army Corps of Engineers property on J. Percy Priest Reservoir.
Carol J. Baskauf, a researcher at Austin Peay State University, is studying the population genetics of this species (Baskauf 2001)
Shaw, E.A. 1973. The Genus Lesquerella (Cruciferae) in North America. Cambridge, Mass.: Harvard University Press.
USFWS. 1994. Determination of Endangered or Threatened Status for 21 Plants from the Island of Hawaii, State of Hawaii. Federal Register. 59, 43: 10305-10325.