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Acer saccharum - (Fraxinus americana) / Arisaema triphyllum Forest | Eastern Ecology Working Group of...
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Name: Acer saccharum - (Fraxinus americana) / Arisaema triphyllum Forest Reference: Eastern Ecology Working Group of... Description: These are northern hardwood forests of slightly enriched soils in the northern Appalachian Mountains and adjacent northeastern United States and Canada. They occur on at moderate elevation (800-2000 feet) on slightly enriched soils, often silt loams derived from pelite or other subacid bedrock. Ridgetops and slight concavities on hillslopes are both typical settings. They may occur as inclusions within typical northern hardwood forests, or may occur over larger areas and be the dominant northern hardwood forest over a particular area. The closed-canopy forest has sparse to moderate shrub cover, moderate herb cover, and may have local carpets of Acer saccharum seedlings in the ground vegetation. Bryoids are a minor component of the forest floor. The canopy is dominated by Acer saccharum, with associated hardwood species including Betula alleghaniensis and Fraxinus americana. Fraxinus may be a canopy codominant in some areas, but tends to drop out northward. Fagus grandifolia is often present, but less abundant than in matrix northern hardwood forests. Conifers are usually sparse. Shrubs can include Cornus alternifolia, Sambucus racemosa (= Sambucus pubens), and Ostrya virginiana. Typical herbs of this semi-rich type, which are scarce or absent from standard beech-birch-maple forests, include Arisaema triphyllum, Viola rotundifolia, Tiarella cordifolia, Actaea pachypoda, Carex laxiculmis, Carex platyphylla, Botrychium spp., and Solidago flexicaulis. These forests are intermediate, in nutrient regime and composition, between Acer saccharum - Fraxinus americana - Tilia americana / Acer spicatum / Allium tricoccum - Caulophyllum thalictroides Forest (CEGL005008) and Acer saccharum - Betula alleghaniensis - Fagus grandifolia / Viburnum lantanoides Forest (CEGL006252). They are more depauperate than other communities of this alliance, for example lacking the rich-soil indicators such as Adiantum pedatum, Caulophyllum thalictroides, and Tilia americana that are typical of Acer saccharum - Fraxinus americana - Tilia americana / Acer spicatum / Allium tricoccum - Caulophyllum thalictroides Forest (CEGL005008).  Accession Code: VB.CC.20942.ACERSACCHARUMFR 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: Acer saccharum - Fraxinus americana - Tilia americana Forest Alliance This Community's Level: Association This Community's Children: [none]		Names:   Translated: Sugar Maple - (White Ash) / Jack-in-the-Pulpit Forest   UID: ELEMENT_GLOBAL.2.685903 NatureServe Explorer   Code: CEGL006211   Scientific: Acer saccharum - (Fraxinus americana) / Arisaema triphyllum Forest   Common: Semi-rich Northern Hardwood Forest (convergence) and Synonyms: (undetermined) Acer saccharum - (Fraxinus americana) / Arisaema triphyllum Forest