| Add/Drop |
Name
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Reference
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Plots↓
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Description |
Comm #6541
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III.B.3.N.a
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accession code: VB.CC.738.IIIB3NA
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EcoArt 2002 |
0
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Comm #6542
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Vaccinium uliginosum / Sibbaldiopsis tridentata Sparse Vegetation
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accession code: VB.CC.31205.CEGL006533
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Eastern Ecology Working Group of... |
0
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These sparsely vegetated rocky balds are found on subalpine and alpine summits of the northern Appalachian Mountains. They are on dry acidic rocky summits, ridges and outcrops composed of resistant granitic bedrock, mostly at elevations between 915 and 1525 m (3000-5000 feet), sometimes as low as 550 m (1800 feet). Soil development is minimal, with vascular vegetation confined to crevices. Expanses of bare rock with crustose lichens predominate. Vascular vegetation is usually less than 25% cover overall, although in patches coverage may approach 70%. The dominant plants are <i>Vaccinium uliginosum, Vaccinium vitis-idaea, Empetrum nigrum, Empetrum eamesii ssp. atropurpureum</i>, and <i>Sibbaldiopsis tridentata</i>. <i>Juncus trifidus</i> and, at higher elevations, <i>Carex bigelowii</i> may be present, but in far lower abundance than they are seen in alpine habitats. This association is related to the alpine ~<i>Vaccinium uliginosum - Rhododendron lapponicum / Juncus trifidus</i> Dwarf-shrubland (CEGL006298)$$, but occurs at lower elevations and lacks characteristic alpine plants such as <i>Diapensia lapponica, Agrostis mertensii, Rhododendron lapponicum</i>, etc. It differs from lower elevation open summits in the presence of subalpine <i>Vaccinium uliginosum</i> (and sometimes <i>Juncus trifidus</i> or <i>Carex bigelowii</i>). |
Comm #6543
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Tsuga canadensis / Ilex opaca / Hieracium venosum Forest
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accession code: VB.CC.31191.CEGL006600
NOT CURRENTLY ACCEPTED
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Eastern Ecology Working Group of... |
0
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This Coastal Plain hemlock ravine forest is known from the Wicomoco terrace of the eastern shore of Maryland and on the western shore in Calvert County. It occurs in shallow ravines with <i>Tsuga canadensis</i> occurring with <i>Fagus grandifolia, Liriodendron tulipifera, Quercus prinus, Quercus velutina</i>, and <i>Quercus alba</i>. The shrub layer is characterized by <i>Ilex opaca, Lindera benzoin, Aralia spinosa, Kalmia latifolia, Viburnum acerifolium</i>, and <i>Vaccinium pallidum</i>. The herbaceous layer is comprised of <i>Mitchella repens, Uvularia sessilifolia, Epigaea repens, Gaultheria procumbens, Hieracium venosum, Polystichum acrostichoides, Botrychium virginianum, Lycopodium complanatum</i>, and <i>Lycopodium obscurum</i>. |
Comm #6544
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Acer saccharum - Betula spp. - Fagus grandifolia Successional Forest
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accession code: VB.CC.30906.CEGL006628
NOT CURRENTLY ACCEPTED
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Eastern Ecology Working Group of... |
0
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This is an early-successional variant of the widespread typic northern hardwood forest (CEGL006252) dominated by a monotypic canopy of <i>Acer saccharum</i> and/or some combination of young, small-diameter <i>Acer saccharum</i><i>, </i><i>Fraxinus americana</i><i>, </i><i>Prunus serotina</i><i>, </i><i>Betula alleghaniensis</i><i>, </i><i>Fagus grandifolia</i>, and/or <i>Betula papyrifera</i>. A disturbed shrub layer may be present with exotics or, more commonly, there is no shrub layer. The herbaceous layer is patchy and most often consists of a mix of ferns, clubmosses (Lycopodiaceae), and other herbs. This community arises from cutting, farming, or extended grazing. It occurs on acidic soils in central New England and at lower elevations in northern New England and upstate New York. |
Comm #6545
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Carya illinoinensis - Celtis laevigata - Ulmus (americana, crassifolia) Mississippi River Alluvial Plain Forest
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accession code: VB.CC.36237.CEGL007912
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Southeastern Ecology Working Gro... |
0
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This is a bottomland forest of upper terraces in the Mississippi River Alluvial Plain of Arkansas, Louisiana, Mississippi, and Tennessee and possibly the adjacent West Gulf Coastal Plain. More information is to be provided by Susan Carr and Tom Foti. Forest stands dominated by the nominal species (<i>Carya illinoinensis, Celtis laevigata, Ulmus americana</i>) have been observed in Shelby Forest State Park, Shelby County, Tennessee (234An). The possible occurrence of this or related vegetation in the adjacent West Gulf Coastal Plain needs to be confirmed. |
Comm #6546
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CEGL002679
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accession code: VB.CC.5086.CEGL002679
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EcoArt 2002 |
0
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Comm #6547
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Acorus calamus Tidal Herbaceous Vegetation
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accession code: VB.CC.31433.CEGL006833
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Eastern Ecology Working Group of... |
0
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This is an association of tidal freshwater marsh dominated by <i>Acorus calamus</i> that occurs in fresh to oligohaline reaches of tidal rivers along the Atlantic coast from Massachusetts to Virginia. This association is best developed in higher, irregularly flooded elevations within freshwater tidal marshes but can occur in areas with a wide tidal range. Substrate is generally fine-particled, but varies from silts and silty mucks to peats and sands. The setting within the tidal marsh tends to be poorly drained; tidal flooding is ponded and of longer duration than adjacent areas. <i>Acorus calamus</i> is dominant, generally comprising at least 50% cover, over extensive patches within the interior of high marshes. <i>Peltandra virginica</i> is a frequent associate. Other associated species are variable and can include <i>Schoenoplectus fluviatilis, Sagittaria latifolia, Polygonum punctatum</i>, and <i>Impatiens capensis</i>. Species that can occasionally occur include <i>Pontederia cordata, Zizania aquatica, Leersia oryzoides, Typha latifolia, Polygonum arifolium, Bidens coronata, Hibiscus moscheutos</i>, and other <i>Schoenoplectus</i> spp. <i>Murdannia keisak</i> has been noted in the southern portion of the range. <i>Acorus calamus</i> is conspicuously dominant in spring and early summer. Later in the season, culms tend to lodge and form mats and be overtopped by other species. |
Comm #6548
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Amorpha fruticosa Tidal Shrubland
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accession code: VB.CC.31076.CEGL006844
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Eastern Ecology Working Group of... |
0
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This freshwater tidal shrubland occurs on tidal rivers bordering the Chesapeake Bay on sandy levees and shorelines above mean high tide. Microtopography is variable, from pronounced hummock-and-hollow to essentially flat. Soils are well-drained sands and gravel to poorly drained peat in lower-lying depressions. The shrub canopy is relatively open and characterized by <i>Amorpha fruticosa</i>. Other associates may include <i>Acer rubrum, Fraxinus pennsylvanica, Decodon verticillatus, Ilex verticillata,</i> and <i>Rosa palustris</i>. The herbaceous layer is diverse and comprised of a mixture of <i>Osmunda regalis, Hibiscus moscheutos, Thelypteris palustris, Boehmeria cylindrica, Leersia oryzoides, Peltandra virginica, Polygonum sagittatum, Sium suave,</i> and <i>Typha angustifolia</i>. |
Comm #6549
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Pinus albicaulis / Festuca idahoensis Woodland
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accession code: VB.CC.33208.CEGL000755
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Western Ecology Working Group of... |
0
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Comm #6550
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Picea engelmannii / Galium triflorum Forest
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accession code: VB.CC.22852.PICEAENGELMANNI
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Western Ecology Working Group of... |
0
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