Sumter National Forest Final Report - NatureServe

• Spray Cliff (Schafale and Weakley 1990) ?Classification Comments: NoneALLIANCE DISTRIBUTIONRange: This alliance is found in Georgia, Kentucky, North Carolina, South Carolina, and Tennessee, and Alabama.Subnations: AL, GA, KY, NC, SC, TNTNC Ecoregions: 43:C, 50:C, 51:C, 52:CUSFS Ecoregions: 221Hb:CCC, 221Hc:CCC, 222Eo:CCC, 231Cd:CCC, M221Dc:CCC, M221Dd:CCCFederal Lands: NPS (Big South Fork, Great Smoky Mountains); USFS (Bankhead, Chattahoochee, Cherokee, Daniel Boone,Nantahala, Pisgah, Sumter)ALLIANCE SOURCESReferences: Allard 1990, Dellinger unpubl. data 1992, Evans 1991, Farrar 1998, Nelson 1986, Schafale and Weakley 1990, Walcket al. 1996, Weakley and Schafale 1994, Wharton 1978V.B.2.N.F. DIPHYLLEIA CYMOSA - SAXIFRAGA MICRANTHIDIFOLIA SATURATEDHERBACEOUS ALLIANCE (A.1688)UMBRELLA-LEAF - BRANCH-LETTUCE SATURATED HERBACEOUS ALLIANCEALLIANCE CONCEPTSummary: This alliance consists of moderate- to high-elevation, forested (shaded) seeps in the Southern Blue Ridge. Diphylleiacymosa and Saxifraga micranthidifolia are characteristic and often dominant. Other characteristic species include Laporteacanadensis, Cardamine clematitis, Chelone lyonii, Chelone glabra, Chrysosplenium americanum, Boykinia aconitifolia, Cicutamaculata, Houstonia serpyllifolia, Viola cucullata, Viola macloskeyi ssp. pallens, Lilium grayi, Oxypolis rigidior, Parnassiaasarifolia, Tiarella cordifolia, Thalictrum clavatum, Trautvetteria caroliniensis, Stellaria corei, and Geum geniculatum. Occurrencesare typically small, but can be extensive (to more than a hectare in size). Vegetation of this alliance has a strong component of speciesendemic to the Southern Blue Ridge.Related Concepts:• High Elevation Seep (Nelson 1986) I• High Elevation Seep (Schafale and Weakley 1990) I• IID3a. Herbaceous High Elevation Seepage Slope (Allard 1990) IClassification Comments: NoneALLIANCE DISTRIBUTIONRange: This alliance is found in the Southern Blue Ridge of Georgia, North Carolina, Tennessee, and Virginia, and possibly SouthCarolina (?).Subnations: GA, NC, SC?, TN, VATNC Ecoregions: 51:C, 59:CUSFS Ecoregions: M221Db:CCP, M221Dc:CCC, M221Dd:CCCFederal Lands: NPS (Great Smoky Mountains); USFS (Chattahoochee, Cherokee, Jefferson, Nantahala, Pisgah, Sumter?)ALLIANCE SOURCESReferences: Allard 1990, Dellinger unpubl. data 1992, Nelson 1986, Schafale and Weakley 1990V.C.2.N.a. Permanently flooded temperate or subpolar hydromorphic-rooted vegetationV.C.2.N.A. PODOSTEMUM CERATOPHYLLUM PERMANENTLY FLOODED HERBACEOUSALLIANCE (A.1752)RIVERWEED PERMANENTLY FLOODED HERBACEOUS ALLIANCEALLIANCE CONCEPTSummary: Vegetation of shoals in rocky streambeds and riverbeds in mature drainage systems where the streams have cut down torock, and the floodplain is relatively narrow; or on dams in moderately fast- to fast-flowing water. The vegetation grows attached torocks in outcrops and stream rubble, or to dams in moderate- to fast-flowing water. This almost always is a monospecific communitydominated by Podostemum ceratophyllum with no other vascular plants present; some Rhodophyta (red algae) may be present.Related Concepts:• Podostemum ceratophyllum herbaceous alliance (Hoagland 1998a) ?• Rocky Bar and Shore (Schafale and Weakley 1990) I Shoal and Stream Bar (Nelson 1986) IClassification Comments: Vegetation of this alliance has been documented from the Sepulga River in the East Gulf Coastal Plain ofAlabama. In the Interior Low Plateau of Tennessee, this vegetation is known from the upper Duck River at Manchester (Old StoneFort State Park).Vegetation of Sumter National Forest April 30 2004Copyright © 2004 NatureServe32