Name:
Juncus repens - Eleocharis microcarpa Seasonally Flooded Herbaceous Alliance
Reference:
Southeastern Ecology Working Gro...
Description:
This alliance represents the central and deepest zones of some seasonally flooded wet depressions in the southeastern United States. It has been documented from the Interior Low Plateau of Tennessee, and could occur in various parts of the Coastal Plain. The central portions of the depressions may be dominated by Eleocharis microcarpa or Juncus repens, or by a combination of the two. Other species which may be present in this low- to medium-stature herbaceous vegetation may include Mecardonia acuminata, Ludwigia linearis, Proserpinaca pectinata, Proserpinaca intermedia, Rhynchospora corniculata, and Xyris laxifolia var. iridifolia. In the central Atlantic Coastal Plain (Chesapeake Bay Lowlands) of Delaware, stands may include Boltonia asteroides, Sclerolepis uniflora, Juncus repens, Ludwigia alternifolia, Dichanthelium spretum, Rhynchospora macrostachya, Rhexia virginica, Polygonum hydropiperoides, Xyris smalliana, Pluchea foetida, and Proserpinaca palustris. In Tennessee, this vegetation may grade up into that of the V.A.5.N.k Rhynchospora spp. - Panicum (rigidulum, verrucosum) - Rhexia virginica Seasonally Flooded Herbaceous Alliance (A.1384), and some species typical of this alliance may be present, including Panicum verrucosum, Panicum rigidulum var. rigidulum, Juncus marginatus, and various other Rhynchospora. The upland depressions where this vegetation occurs typically have a pronounced seasonal fluctuation in water level, filling in the winter and often drying completely in the summer. During some years, the deepest zone in the center of the depression may remain inundated.
Accession Code:
VB.CC.18061.JUNCUSREPENSELE
Plot-observations of this Community Concept:
0
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