Name:
Fraxinus nigra - Acer rubrum - (Larix laricina) / Rhamnus alnifolia Forest
Reference:
Eastern Ecology Working Group of...
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 Acer rubrum and Larix laricina, with Fraxinus nigra sometimes prominent. Canopy associates include Betula alleghaniensis, Tsuga canadensis, Pinus strobus, Carpinus caroliniana, and Picea rubens, the latter especially in the north or at higher elevations. Shrub cover varies with canopy cover and can be quite dense; typical species include Toxicodendron vernix, Rhamnus alnifolia, Cornus sericea, Salix candida, Ilex verticillata, Vaccinium corymbosum, and occasionally Dasiphora fruticosa ssp. floribunda and Betula pumila. The diverse herb layer is characterized by 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 (= Senecio aureus), and Symplocarpus foetidus; plus Cypripedium reginae, Cypripedium parviflorum (= Cypripedium calceolus), and Platanthera dilatata.
Accession Code:
VB.CC.26880.FRAXINUSNIGRAAC
Plot-observations of this Community Concept:
0
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