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Name
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Reference
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Plots↓
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Description |
Comm #7281
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Leiophyllum buxifolium - (Hudsonia montana) / Selaginella tortipila - Carex umbellata Quartzite Outcrop Dwarf-shrubland
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accession code: VB.CC.34770.CEGL007010
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Southeastern Ecology Working Gro... |
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This association is found on ledges of quartzite in Linville Gorge, North Carolina. It is now essentially extinct because of fire suppression, but is in the process of restoration by the U.S. Forest Service, U.S. Fish and Wildlife Service, and North Carolina Plant Conservation Program. The community is a patchy mosaic of shrub, herbaceous, and nonvascular vegetation, and bare rock. Shallow soil patches are dominated by <i>Leiophyllum buxifolium, Hudsonia montana, Rhododendron carolinianum, Kalmia latifolia, Hypericum densiflorum</i>, or other species. Trees may be present with low cover, including <i>Pinus strobus, Tsuga caroliniana</i>, and <i>Nyssa sylvatica</i>. Open areas are dominated by <i>Selaginella tortipila</i>. <i>Carex umbellata</i> is a frequent component. In the absence of fire, the taller shrubs increase in cover and smother the smaller <i>Hudsonia montana</i>, as well as the herbaceous plants. |
Comm #7282
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Ozark Riverine Cobble - Gravel Flats Sparse Vegetation
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accession code: VB.CC.34754.CEGL007012
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Southeastern Ecology Working Gro... |
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This riverine gravel and cobble flats community is found in the Ozark and Ouachita regions of the United States. Stands occur along large and small rivers (including the Buffalo River in Arkansas) where gravel and cobble material has been deposited on the first terraces. The substrate consists of a mixture of cobbles, gravel and sand, and soils are poorly developed or absent. Sites can be flooded in spring. Vegetation is sparse and usually consists of scattered patches of annual grasses and annual or biennial forbs under 1 m tall. Shrubs are also scattered and uncommon, including <i>Lindera benzoin, Alnus serrulata</i>, and <i>Hamamelis vernalis</i>. |
Comm #7283
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CEGL003012
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accession code: VB.CC.5223.CEGL003012
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #7284
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CEGL003277
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accession code: VB.CC.5408.CEGL003277
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #7285
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Avicennia germinans - (Rhizophora mangle) / Batis maritima Basin Forest
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accession code: VB.CC.36311.CEGL007061
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Southeastern Ecology Working Gro... |
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This is a non-tidal black mangrove community described from the Florida Keys. It is also found in the extreme southern Florida peninsula. Mangrove canopy dominated by <i>Avicennia germinans</i> and <i>Rhizophora mangle</i> is usually 4-10 m high and irregular in density. <i>Batis maritima</i> is a characteristic associate. |
Comm #7286
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CEGL000165
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accession code: VB.CC.2791.CEGL000165
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #7287
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V.A.2.N.c
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accession code: VB.CC.638.VA2NC
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EcoArt 2002 |
0
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Comm #7288
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CEGL006325
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accession code: VB.CC.6827.CEGL006325
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #7289
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Quercus stellata - Quercus marilandica Woodland Alliance
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accession code: VB.CC.17957.QUERCUSSTELLATA
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Southeastern Ecology Working Gro... |
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This alliance includes open-canopy stands, typically dominated by Quercus stellata and/or Quercus marilandica, found throughout the southeastern and lower midwestern United States. These communities are physiognomically variable, locally varying from deciduous to mixed, these mixed stands often having substantial Juniperus virginiana var. virginiana, especially as a result of fire suppression. These post oak - blackjack oak barrens are more edaphically extreme or frequently burned than the corresponding I.B.2.N.a Quercus stellata - Quercus marilandica Forest Alliance (A.253), which is currently more common due to fire suppression. Some examples occur on 2:1 montmorillonitic clays, while others are on limestone-derived soils. Canopy and subcanopy associates, in addition to Quercus stellata and Quercus marilandica, may include Juniperus virginiana var. virginiana, Pinus echinata, Pinus virginiana, Carya texana, Carya glabra, Cornus florida, Quercus alba, Quercus falcata, Quercus prinus, Quercus velutina, Diospyros virginiana, Chionanthus virginicus, and Vaccinium arboreum. Pinus palustris may be present in this alliance in the West Gulf Coastal Plain of eastern Texas and western Louisiana. In associations on mafic substrates, Carya carolinae-septentrionalis, Ulmus alata, Fraxinus americana, and Cercis canadensis are common. Acer rubrum and Liquidambar styraciflua increase with disturbance. Shrubs may be sparse to dense, and species present include Viburnum rafinesquianum, Ilex longipes, Symphoricarpos orbiculatus, Gaylussacia baccata, Rhododendron canescens, Vaccinium stamineum, Vaccinium corymbosum, and Viburnum prunifolium. In the southeastern Coastal Plain, some stands may contain Quercus margarettiae. A rare type that occurs in North and South Carolina has an herbaceous layer containing many prairie species such as Silphium terebinthinaceum, Solidago nemoralis, Coreopsis major, Liatris aspera, Andropogon gerardii, and Sorghastrum nutans. The most common herbaceous species are Schizachyrium scoparium and Danthonia spicata. In Tennessee, woodlands in this alliance occur in the Central Basin and adjacent Highland Rim and may contain Andropogon gerardii, Schizachyrium scoparium, and/or Sorghastrum nutans. Pines are absent; instead, Juniperus virginiana var. virginiana may be present in the more-or-less open subcanopy. Shrubs in the Central Basin examples include Forestiera ligustrina, Hypericum frondosum, Rhus aromatica, and Viburnum rufidulum. Fire suppression in these sites may lead to dense undergrowth of Juniperus. In Louisiana and Texas (and in the Sandhills of the southeastern Coastal Plain), this alliance results mostly from pine removal and fire suppression, and examples only marginally fit this concept. This alliance occurs on xeric sites in northwestern Arkansas and may include some of Arkansas's glade/outcrop complexes and prairie communities, as well as ridgetop savanna / glade communities. This alliance is widespread throughout the southeastern and lower midwestern United States and occurs in the following regions: Ozarks, Interior Low Plateau, Boston Mountains, Southern Piedmont, Southern Ridge and Valley, Arkansas Valley, Ouachita Mountains, Atlantic Coastal Plain, Upper East Gulf Coastal Plain (Black Belt), Crowley's Ridge, and the Prairie Parkland. |
Comm #7290
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Fraxinus pennsylvanica - Platanus occidentalis - Celtis laevigata / Chasmanthium latifolium Piedmont River Levee Forest
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accession code: VB.CC.34752.CEGL007013
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Southeastern Ecology Working Gro... |
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This forest occurs on natural levees of large to medium floodplains in the Piedmont region. Soils are sandy and generally very fertile. Flooding is fairly frequent but generally of short duration. Characteristic levee forest trees dominate or are at least abundant, particularly <i>Platanus occidentalis, Fraxinus pennsylvanica, Celtis laevigata</i>, and <i>Acer negundo</i>. Other frequent or abundant species include <i>Liquidambar styraciflua, Liriodendron tulipifera, Ulmus americana</i>, and <i>Carya cordiformis</i>. Frequent understory trees include <i>Carpinus caroliniana ssp. caroliniana, Asimina triloba, Cornus florida</i>, and canopy species. The shrub layer is often moderate to dense, with <i>Lindera benzoin, Arundinaria gigantea, Aesculus sylvatica, Asimina triloba, Ilex decidua</i>, or the exotic shrub <i>Ligustrum sinense</i> abundant. Vines are often abundant. The herbaceous layer is usually dense. <i>Elymus virginicus</i> or <i>Chasmanthium latifolium</i> often dominate. Other frequent herbs include <i>Boehmeria cylindrica, Carex</i> spp. <i>Galium aparine, Polygonum virginianum (= Persicaria virginiana), Sanicula canadensis, Verbesina occidentalis</i>, and <i>Viola</i> spp. |
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