Name:
Acer rubrum - Fraxinus nigra - (Larix laricina) / Rhamnus alnifolia Swamp Forest
Reference:
NatureServe Biotics 2019
Description:
These calcareous or circumneutral seepage swamps of the northeastern United States have moderate to closed canopies and a rich herb layer influenced by calcium-rich groundwater seepage. These can occur along streams or at headwaters in areas of calcareous bedrock. Soils are saturated, organic muck or peat that can be quite deep. The canopy is dominated by <i>Acer rubrum</i> and <i>Larix laricina</i>, with <i>Fraxinus nigra</i> sometimes prominent. Canopy associates include <i>Betula alleghaniensis, Tsuga canadensis, Pinus strobus, Carpinus caroliniana</i>, and <i>Picea rubens</i>, the latter especially in the north or at higher elevations. Shrub cover varies with canopy cover and can be quite dense; typical species include <i>Toxicodendron vernix, Rhamnus alnifolia, Cornus sericea, Salix candida, Ilex verticillata, Vaccinium corymbosum</i>, and occasionally <i>Dasiphora fruticosa ssp. floribunda</i> and <i>Betula pumila</i>. The diverse herb layer is characterized by <i>Saxifraga pensylvanica, Caltha palustris, Cardamine bulbosa, Geum rivale, Osmunda cinnamomea, Carex leptalea, Carex interior, Carex stricta, Carex lacustris, Carex flava, Solidago patula, Iris versicolor, Ranunculus hispidus var. caricetorum, Cardamine douglassii, Thelypteris palustris, Dryopteris cristata, Solidago patula, Packera aurea</i>, and <i>Symplocarpus foetidus</i>; plus <i>Cypripedium reginae, Cypripedium parviflorum</i>, and <i>Platanthera dilatata</i>.
Accession Code:
urn:lsid:vegbank.org:commConcept:34660-{8E23EE31-9621-4805-9BA1-EC6FC8B8F7DD}
Plot-observations of this Community Concept:
5
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