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Sumter National Forest Final Report - NatureServe

Sumter National Forest Final Report - NatureServe

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maculata, Eurybia divaricata (= Aster divaricatus), Arisaema triphyllum, Monotropa uniflora, Mitchella repens, and Medeolavirginiana. The spectacular sedge Cymophyllus fraserianus is often associated with this forest.Dynamics: No informationSimilar Associations:• Acer rubrum var. rubrum - Betula (alleghaniensis, lenta) - Magnolia fraseri / (Rhododendron maximum, Kalmia latifolia) <strong>Forest</strong>(CEGL008558)• Betula alleghaniensis - (Tsuga canadensis) / Rhododendron maximum / Leucothoe fontanesiana <strong>Forest</strong> (CEGL007861)• Tsuga canadensis - (Fagus grandifolia, Tilia americana var. heterophylla) / Magnolia tripetala <strong>Forest</strong> (CEGL008407)Related Concepts:• Liriodendron tulipifera - Betula lenta - Tsuga canadensis / Rhododendron maximum <strong>Forest</strong> (Fleming and Coulling 2001) ?• Acidic Cove <strong>Forest</strong> (Typic Subtype) (Schafale 1998b) ?• Cove <strong>Forest</strong> (Patterson et al. 1994) B• IA5b. Southern Appalachian Hemlock Cove <strong>Forest</strong> (Allard 1990) B• Mixed Mesophytic Coves (Gettman 1974) ?• Type 5 (Newell and Peet 1995) ?• Yellow-poplar - Eastern Hemlock: 58 (Eyre 1980) BClassification Comments: Deciduous trees more typical of 'rich' coves, such as Aesculus flava, Tilia americana var. heterophylla,and Acer saccharum, are present in this forest only as minor components, if at all. Likewise, rich-site herbs, such as Actaea racemosa(= Cimicifuga racemosa), Caulophyllum thalictroides, Actaea pachypoda, and Adiantum pedatum, are absent or nearly so. This forestis distinguished from "northern hardwood forests" by the lack of or near absence of Fagus grandifolia, Betula alleghaniensis,Aesculus flava, and the presence of low-elevation species, such as Betula lenta and Liriodendron tulipifera, and generally by a moredepauperate herb layer. An interesting example from the Piedmont/Blue Ridge transition of Georgia (Cedar Creek Canyon,Chattahoochee <strong>National</strong> <strong>Forest</strong>) has high coverage of Rhododendron minus and other foothills/Piedmont species such as Liquidambarstyraciflua and Aesculus sylvatica.This community type is grossly under-represented by plot data considering its extensive distribution in southwestern Virginia. In the900-1060 m (3000-3500 feet) elevation range, the type becomes transitional to Betula alleghaniensis - (Tsuga canadensis) /Rhododendron maximum / Leucothoe fontanesiana <strong>Forest</strong> (CEGL007861), which lacks lower-elevation species such as Liriodendrontulipifera and Galax urceolata, and contains many species characteristic of higher elevations and northern latitudes.Similar vegetation has been observed in coves of the Cumberland Mountains of southwestern Virginia (e.g., Clinch Ranger District:Dark Hollow, Roaring Branch, Pick Breeches and Flannery Ridges,) but comprehensive data are needed to determine whether thesestands are part of this forest types or transitional to Tsuga canadensis - (Fagus grandifolia, Tilia americana var. heterophylla) /Magnolia tripetala <strong>Forest</strong> (CEGL008407). The latter unit apparently has an extensive distribution in the Cumberland Plateau ofKentucky and Tennessee, the Southern Ridge and Valley of Tennessee, and the Central Appalachians of West Virginia andsouthwestern Pennsylvania.CONSERVATION RANKING & RARE SPECIESGRank: G5 (2001-9-28): Within its range, this community type occurs extensively in suitable mesic habitats. Occurrences aresubject to compositional modification by outbreaks of hemlock woolly adelgid (Adelges tsugae), an exotic insect pest that causesdecline and eventual mortality of Tsuga canadensis.High-ranked species: Betula uber (G1Q), Botrychium jenmanii (G3G4), Diervilla rivularis (G3), Hexastylis contracta (G3),Hexastylis naniflora (G3), Hexastylis rhombiformis (G2), Isotria medeoloides (G2), Malaxis bayardii (G2), Monotropsis odorata(G3), Trillium persistens (G1), Waldsteinia lobata (G2)ELEMENT DISTRIBUTIONRange: This community occurs in the Southern Blue Ridge and peripherally in the upper Piedmont, ranging from southwesternVirginia, south and west to northwestern Georgia.Subnations: GA, NC, SC, TN, VA, WVTNC Ecoregions: 50:P, 51:C, 52:C, 59:CUSFS Ecoregions: 231Aa:CCC, M221Aa:CCC, M221Ab:CCC, M221Ca:CPP, M221Cb:CPP, M221Cc:CPP, M221Ce:CPP,M221Da:CC?, M221Db:CCC, M221Dc:CCC, M221Dd:CCC, M231Ad:CCCFederal Lands: NPS (Blue Ridge Parkway?, Carl Sandburg Home, Great Smoky Mountains); USFS (Chattahoochee, Cherokee,Jefferson, Nantahala, Pisgah, <strong>Sumter</strong>)ELEMENT SOURCESReferences: Allard 1990, Eyre 1980, Fleming and Coulling 2001, Fleming et al. 2001, Gettman 1974, <strong>NatureServe</strong> Ecology -Southeastern U.S. unpubl. data, Newell and Peet 1995, Patterson 1994, Patterson et al. 1994, Peet et al. unpubl. data 2002, Schafale1998b, Schafale and Weakley 1990, Southeastern Ecology Working Group n.d.Vegetation of <strong>Sumter</strong> <strong>National</strong> <strong>Forest</strong> April 30 2004Copyright © 2004 <strong>NatureServe</strong>38

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