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Tsuga canadensis - Betula alleghaniensis Lower New England / Northern Piedmont Forest | Eastern Ecology Working Group of...
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Name: Tsuga canadensis - Betula alleghaniensis Lower New England / Northern Piedmont Forest Reference: Eastern Ecology Working Group of... Description: This association comprises mixed hemlock - northern hardwood forests of the northeastern United States. This forest is associated with cool, dry-mesic to mesic sites and acidic soils, often on rocky, north-facing slopes. Soils can have a thick, poorly decomposed duff layer over sandy loams. Tsuga canadensis is dominant and forms at least 50% of the canopy. Betula alleghaniensis can be codominant, with Fagus grandifolia and Acer saccharum common but not usually abundant in all but the very southern portion of the range of this type. Quercus spp. and Pinus strobus tend to be absent or, if present, only occur with low abundance. The shrub layer may be dense to fairly open and often includes Viburnum acerifolium and Acer pensylvanicum in addition to Tsuga canadensis regeneration. Herbs may be sparse, particularly in dense shade, but often include Dryopteris intermedia, Medeola virginiana, Oxalis montana, Mitchella repens, Maianthemum canadense, Trientalis borealis, Huperzia lucidula (= Lycopodium lucidulum), Eurybia divaricata (= Aster divaricatus), and Thelypteris noveboracensis. Nonvascular plants may be well-developed, often characterized by the liverwort Bazzania trilobata. Diagnostic characteristics of this forest are the presence of Betula alleghaniensis and Acer saccharum and a lack of abundant Quercus spp., Pinus strobus, or Betula lenta.  Accession Code: VB.CC.22666.TSUGACANADENSIS Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 26-Nov-1997 to: 17-Nov-2014
	status: accepted Community's Parent: Tsuga canadensis - Betula alleghaniensis Forest Alliance This Community's Level: Association This Community's Children: [none]		Names:   Translated: Eastern Hemlock - Yellow Birch Lower New England / Northern Piedmont Forest   Scientific: Tsuga canadensis - Betula alleghaniensis Lower New England / Northern Piedmont Forest   UID: ELEMENT_GLOBAL.2.687146 NatureServe Explorer   Common: Hemlock - Northern Hardwood Forest   Code: CEGL006109 (convergence) and Synonyms: (undetermined) Tsuga canadensis - Betula alleghaniensis - Acer saccharum / Dryopteris intermedia Forest