Name:
Rhynchospora capitellata - Cyperus dentatus - Rhexia virginica - Xyris difformis Marsh
Reference:
NatureServe Biotics 2019
Description:
This oligotrophic Atlantic Coastal Plain pondshore community occurs on the shores of ponds formed in glacial outwash from Ontario and possibly Nova Scotia south to Long Island, New York, and possibly to the Coastal Plain of New Jersey. The substrate is generally sand or gravelly sand with a shallow or negligible organic layer. The amount of organic material at the surface or mixed with sand is highly variable, ranging from an absent O horizon (pure sand) to a deep A horizon of sandy loam. The vegetation occupies the highly variable intermediate zones exposed by water level draw-down late in the growing season. This vegetation is often characterized by conspicuous zones of varying dominants, but analysis reveals that the overall species composition of these zones is strikingly similar, and does not warrant further separation by dominant species. Vegetation cover is usually high and is characterized by graminoids with a high component of forbs. Characteristic species include <i>Rhexia virginica, Rhynchospora capitellata, Cyperus dentatus, Viola lanceolata, Triadenum virginicum, Juncus canadensis, Juncus pelocarpus, Juncus militaris, Drosera filiformis, Drosera intermedia, Euthamia caroliniana, Hypericum mutilum, Hypericum canadense, Fimbristylis autumnalis, Rhynchospora fusca, Muhlenbergia uniflora, Juncus pelocarpus, Gratiola aurea, Xyris difformis, Agalinis purpurea, Coreopsis rosea</i>, and <i>Agrostis scabra</i>. Many rare species may be found in this vegetation, such as <i>Sabatia kennedyana, Eupatorium novae-angliae</i>, and <i>Sagittaria teres</i>.
Accession Code:
urn:lsid:vegbank.org:commConcept:34857-{B73D5AF9-C53A-43E6-9ADD-DD8D3234C665}
Plot-observations of this Community Concept:
0
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