Name:
Acer rubrum - Fraxinus nigra - (Tsuga canadensis) / Tiarella cordifolia Swamp Forest
Reference:
NatureServe Biotics 2019
Description:
This is a northern hardwood-conifer seepage forest of central New England. It typically occurs in basins or along streamsides that are associated with groundwater discharge or seeps at the wetland margin; pH is often circumneutral or at least not highly acidic. Stands often form at stream headwaters. Soil substrate is well-decomposed peat or muck of variable thickness, ranging from 20 cm to several meters thick. The canopy is dominated by <i>Acer rubrum</i> or codominated with <i>Fraxinus nigra</i>, which is generally indicative of mineral enrichment from groundwater in this region. Typical canopy associates include <i>Betula alleghaniensis</i> and <i>Tsuga canadensis</i>; <i>Pinus strobus</i> and <i>Ulmus americana</i> may also be present. The shrub layer includes saplings of canopy tree species plus <i>Rhamnus alnifolia, Vaccinium corymbosum, Ribes americanum, Ilex verticillata</i>, and <i>Toxicodendron radicans</i>. In the southern extent of the range, <i>Toxicodendron vernix</i> and <i>Lindera benzoin</i> become more abundant. Common herbs include <i>Onoclea sensibilis, Osmunda cinnamomea, Impatiens capensis, Chrysosplenium americanum, Mitella nuda, Saxifraga pensylvanica, Rubus pubescens, Geum rivale, Tiarella cordifolia, Carex leptalea, Carex leptonervia, Carex interior, Glyceria striata</i>, and <i>Dryopteris cristata</i>. In some cases, the ferns form an herbaceous "canopy" with the forbs and graminoids scattered among and below them. The nonvascular layer is usually well-developed and includes <i>Thuidium delicatulum, Mnium</i> spp., <i>Rhytidiadelphus triquetrus</i>, and <i>Climacium dendroides</i> with <i>Calliergon cordifolium</i> in hollows.
Accession Code:
urn:lsid:vegbank.org:commConcept:35133-{56343248-38E9-4D81-A98B-35133D2A534E}
Plot-observations of this Community Concept:
0
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