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Description |
Comm #11121
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Acer rubrum var. rubrum - Betula (alleghaniensis, lenta) - Magnolia fraseri / (Rhododendron maximum, Kalmia latifolia) Forest
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accession code: VB.CC.36331.CEGL008558
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Southeastern Ecology Working Gro... |
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This association includes submesic, potentially fire-exposed or heavily logged, mid and upper slopes in the Southern Appalachians north to the Cumberlands. Canopy dominance may be shared by a number of species, including <i>Acer rubrum var. rubrum, Carya glabra, Magnolia fraseri, Halesia tetraptera var. monticola, Nyssa sylvatica, Betula alleghaniensis var. alleghaniensis, Betula lenta, Oxydendrum arboreum</i>, and <i>Tsuga canadensis</i>, but the community's most distinctive character is the relative lack of dominance by any one species and the lack of oak species in the canopy. This community may occasionally be dominated by <i>Betula lenta</i> and/or <i>Betula alleghaniensis</i> with an extremely dense understory of <i>Rhododendron maximum</i>; it may intergrade with acidic cove forests farther downslope. The understory shrub layer is composed of a combination of <i>Kalmia latifolia</i> and <i>Rhododendron maximum</i>, though the cover is not consistently 100%. The proportion of <i>Kalmia</i> to <i>Rhododendron</i> varies widely through this association, with more xeric sites having a higher concentration of <i>Kalmia latifolia</i> than <i>Rhododendron maximum</i>. In addition, drier versions of this association tend to contain abundant <i>Sassafras albidum</i> in the understory, whereas the more mesic versions have lower densities of <i>Sassafras albidum</i>. The herb layer is generally sparse but may sometimes be dominated by a dense cover of ferns such as <i>Dennstaedtia punctilobula</i> or <i>Dryopteris marginalis</i>. |
Comm #11122
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Quercus turbinella - Juniperus osteosperma Shrubland
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accession code: VB.CC.25602.QUERCUSTURBINEL
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Western Ecology Working Group of... |
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Comm #11123
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Salix boothii / Deschampsia caespitosa - Geum rossii Shrubland
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accession code: VB.CC.32389.CEGL002904
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Western Ecology Working Group of... |
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Comm #11124
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Atriplex canescens - Krascheninnikovia lanata Shrubland
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accession code: VB.CC.19824.ATRIPLEXCANESCE
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Western Ecology Working Group of... |
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Comm #11125
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Quercus alba - Quercus nigra / Ostrya virginiana / Sabal minor Forest
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accession code: VB.CC.35415.CEGL008581
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Southeastern Ecology Working Gro... |
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This community occurs on mesic, circumneutral slopes in eastern Texas. The canopy is dominated by <i>Quercus alba, Liquidambar styraciflua</i>, and <i>Quercus nigra</i> with lesser amounts of <i>Tilia americana var. caroliniana (= Tilia caroliniana)</i> and <i>Pinus taeda</i> present. The subcanopy is dominated by <i>Ostrya virginiana, Ilex opaca, Platanus occidentalis</i>, and <i>Morus rubra</i>. <i>Sabal minor, Forestiera ligustrina</i>, and <i>Arundinaria gigantea</i> are the dominant shrub species. The understory includes <i>Polystichum acrostichoides, Chasmanthium sessiliflorum, Cocculus carolinus, Bignonia capreolata, Berchemia scandens, Sanicula canadensis, Passiflora lutea, Elephantopus tomentosus, Dichanthelium boscii, Oplismenus hirtellus ssp. setarius (= Oplismenus setarius), Smallanthus uvedalius</i>, and <i>Thelypteris kunthii</i>. |
Comm #11126
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Salix boothii / Carex nebrascensis Shrubland
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accession code: VB.CC.23070.SALIXBOOTHIICAR
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Western Ecology Working Group of... |
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Comm #11127
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Cladium mariscus ssp. jamaicense - Typha domingensis - Fimbristylis caroliniana - Bacopa monnieri Herbaceous Vegetation
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accession code: VB.CC.36129.CEGL008591
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Southeastern Ecology Working Gro... |
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This community occurs in shallow marshes associated with "spring-run" streams in peninsular Florida. Stands of this association are dominated by <i>Cladium mariscus ssp. jamaicense</i>. Other typical species include <i>Typha domingensis, Pluchea odorata, Fimbristylis caroliniana, Eleocharis</i> sp., <i>Bacopa monnieri, Ammannia latifolia, Eupatorium serotinum, Mikania scandens, Acrostichum danaeifolium, Thelypteris palustris var. pubescens, Hydrocotyle</i> sp., <i>Samolus ebracteatus ssp. ebracteatus</i>, and <i>Saururus cernuus</i>. Floating aquatic plants may be present in examples of this vegetation. Some typical components include <i>Stuckenia pectinata (= Potamogeton pectinatus), Najas guadalupensis, Salvinia minima, Lemna</i> sp., and <i>Spirodela</i> sp. Although this is essentially an herbaceous type, shrubs (especially <i>Morella cerifera</i> and <i>Baccharis halimifolia</i>) may sometimes have substantial cover. All of these are treated here, even examples with scattered to open shrub cover. |
Comm #11128
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Fraxinus caroliniana - Sabal palmetto - Ulmus americana / Cephalanthus occidentalis Forest
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accession code: VB.CC.36277.CEGL008592
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Southeastern Ecology Working Gro... |
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This is a long-hydroperiod, seasonally flooded, floodplain forest found in the vicinity of the St. John's River in Florida. The canopy of stands is fairly diverse, but plant species diversity is correspondingly lower than in sites of shorter hydroperiod. <i>Fraxinus caroliniana</i> is the dominant tree, followed by <i>Sabal palmetto, Ulmus americana</i>, and <i>Acer rubrum</i>. In addition, <i>Taxodium distichum</i> and <i>Persea palustris</i> occur in some stands of this type. Subcanopy species include <i>Ilex cassine, Gleditsia aquatica, Cornus foemina (= Cornus stricta)</i>, and <i>Liquidambar styraciflua</i>. The shrub layer is typically dominated by <i>Cephalanthus occidentalis</i>. Herbs may include <i>Polygonum</i> spp., <i>Pontederia cordata, Thelypteris kunthii, Boehmeria cylindrica, Carex alata, Carex lupulina, Panicum rigidulum, Phanopyrum gymnocarpon (= Panicum gymnocarpon), Galium</i> sp., <i>Hypoxis curtissii (= Hypoxis leptocarpa)</i>, and <i>Ludwigia repens</i>. Floating-leaved aquatics may be present in some stands. |
Comm #11129
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Bouteloua gracilis - Hesperostipa comata Herbaceous Vegetation
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accession code: VB.CC.34335.CEGL002932
NOT CURRENTLY ACCEPTED
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Western Ecology Working Group of... |
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This association has only been described from Zion National Park. Until further inventory is completed there is no global information. |
Comm #11130
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I.C.1.N.b
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accession code: VB.CC.749.IC1NB
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EcoArt 2002 |
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