Name:
Vernonia noveboracensis - Thelypteris palustris - Symplocarpus foetidus Herbaceous Vegetation
Reference:
Eastern Ecology Working Group of...
Description:
These small wetlands (<1-6 acres) occur as patches within the forest matrix where calcareous groundwater discharge is present throughout the growing season. The substrate may vary from mineral soils to sapric peat (muck). Peat deposits, when present, are generally thin (<50 cm). This association is characterized by a highly variable species composition. <i>Juniperus virginiana</i> may be present, and tall shrubs may be present at low cover (<10%) and include <i>Salix</i> spp., <i>Lindera benzoin</i>, and <i>Toxicodendron vernix</i>. The short-shrub layer is also sparse and often dominated by willows. <i>Dasiphora fruticosa ssp. floribunda (= Pentaphylloides floribunda)</i> is not a typical associate, and if present, is at low cover. The shrub layers may contain invasive shrubs, especially <i>Rosa multiflora, Lonicera morrowii</i>, and <i>Berberis thunbergii</i>. Open sites with little or no woody plant cover often are dominated by graminoids, while more shaded sites have a higher cover of forb species. Herbaceous vegetation typically exceeds 90% and may reach 2 m in height in some forb species. Typical forb species include <i>Vernonia noveboracensis, Thelypteris palustris, Viola</i> spp., <i>Packera aurea (= Senecio aureus), Symplocarpus foetidus, Arisaema triphyllum, Hydrocotyle americana, Eupatorium</i> spp., <i>Impatiens</i> spp., <i>Pycnanthemum verticillatum, Amphicarpaea bracteata, Mitella diphylla</i>, <i>Solidago uliginosa, Drosera rotundifolia, Parnassia glauca, </i>and <i>Chelone glabra</i>. Typical graminoid species include <i>Carex leptalea, Carex granularis, Carex atlantica, Carex debilis, Leersia oryzoides</i>, <i>Muhlenbergia glomerata, Rhynchospora alba, </i>and <i>Poa palustris</i>. The invasive plants <i>Lythrum salicaria</i> and <i>Microstegium vimineum</i> may be present, the former particularly in more open seeps. Mosses are usually present but are typically <5% of total vegetation cover.
Accession Code:
VB.CC.30992.CEGL006448
Plot-observations of this Community Concept:
0
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