Name:
Bacopa monnieri - Eleocharis spp. Thin Floating Marsh
Reference:
NatureServe Biotics 2019
Description:
This is a thin floating mat of aquatic and wetland plants described from Jean Lafitte National Historical Park and Preserve, Louisiana. It is a type of mixed, native marsh that forms in areas that have been disturbed by extensive herbivory, air boat activity, or other intense disturbance. It is often expressed as a matrix of taller plants such as <i>Kosteletzkya virginica</i> and <i>Ludwigia leptocarpa</i> intermingled with shorter ones such as <i>Bidens laevis, Polygonum hydropiperoides</i>, and <i>Thelypteris palustris</i>. Interspersed within this taller matrix are patches of thinner floating mats characterized by <i>Bacopa monnieri, Eleocharis olivacea</i>, and <i>Hydrocotyle</i> spp. The <i>Eleocharis</i> forms a low, dense continuous mat, and the other marsh plants are lying on it or rising above it. Other species that may be present include <i>Andropogon glomeratus, Cyperus</i> spp., <i>Lythrum lineare, Morella cerifera, Sacciolepis striata, Sagittaria lancifolia, Spartina patens, Symphyotrichum subulatum, Typha domingensis, Vigna luteola</i> and the non-native <i>Panicum repens</i>. This vegetation has been observed to form extensive areas within other more uniform marsh types (e.g., dominated by <i>Panicum hemitomon, Sagittaria lancifolia, Spartina patens, Typha domingensis</i>, etc.). These patches are thought to result from herbivory by nutria, muskrats, deer, etc., as well as subsidence. It is found within the larger marsh matrix and on the margins of lakes and large natural bayous, rather than in heavily-traveled waterways.
Accession Code:
urn:lsid:vegbank.org:commConcept:35396-{4366AB1B-1719-4391-8E8C-528975F998C9}
Plot-observations of this Community Concept:
0
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