Name:
Acer rubrum - Fraxinus pennsylvanica Northeastern Swamp Forest Alliance
Reference:
NatureServe Biotics 2019
Description:
This alliance contains swamp forests in which <i>Fraxinus pennsylvanica</i> is characteristic, and <i>Acer rubrum</i> is nearly always present. Canopy composition differs sharply from the surrounding upland and varies with geography. It differs from associated temporarily flooded forests by the absence or unimportance of floodplain species such as <i>Acer saccharinum, Betula nigra, Platanus occidentalis</i>, and <i>Populus deltoides</i>. Other canopy species across the range of this alliance include <i>Betula lenta, Fraxinus americana, Liquidambar styraciflua, Liriodendron tulipifera, Quercus bicolor, Quercus palustris, Ulmus americana</i>, and <i>Ulmus rubra</i>. Understory and shrub species include <i>Alnus serrulata, Carpinus caroliniana, Cornus</i> spp., <i>Ilex verticillata, Lindera benzoin</i>, and <i>Vaccinium corymbosum</i>; <i>Ilex mucronata</i> often occurs in the northern portion of the range. Typical habitats include forested seeps on hillsides or along watercourses, edges and backswamps of floodplains that may be saturated by seepage from adjacent slopes, and other poorly drained depressions. Flooding occurs during the winter and spring and often extends into the growing season. Surface water is superficial, but the substrate is saturated to the surface by groundwater for extended periods during the growing season, or water may be ponded for most of the year. The substrate is generally muck rather than peat, overlying mineral soils.
Accession Code:
urn:lsid:vegbank.org:commConcept:38920-{2A2D4E2B-DC27-4FB2-9FAA-2BEBF7670AC5}
Plot-observations of this Community Concept:
0
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