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Description |
Comm #7781
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Pinus rigida / (Quercus ilicifolia) / Photinia melanocarpa / Deschampsia flexuosa Woodland
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accession code: VB.CC.31058.CEGL006116
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Eastern Ecology Working Group of... |
0
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This northeastern pitch pine community occurs on dry rocky ridges and summits of low to moderate elevations. Soils are derived from acidic bedrock and are typically shallow, well- to excessively drained, coarse sands or gravels that develop in pockets of the exposed bedrock expanses. The canopy is open and trees are often stunted, usually less than 15 m in height and may be under 10 m. Tall shrubs are scattered and not abundant. The dwarf-shrub layer is moderately to well-developed (>20% cover, often more dense). Herbs are sparse. The bryoid layer is of variable cover, with lichens prominent. The ground cover is bare rock and deciduous and coniferous litter. The canopy is dominated by <i>Pinus rigida</i> with a variable mixture of associates, such as <i>Betula populifolia, Quercus rubra, Quercus prinus, Carya glabra, Pinus strobus, Pinus resinosa, Betula lenta, Acer rubrum</i>, and <i>Prunus serotina</i>. The tall-shrub layer is comprised of scattered <i>Quercus ilicifolia, Quercus prinoides</i>, or less commonly <i>Nemopanthus mucronatus</i>. The shrub layer is dominated by heaths, such as <i>Vaccinium angustifolium, Vaccinium pallidum, Vaccinium myrtilloides</i>, and <i>Gaylussacia baccata</i>, as well as other shrubs, such as <i>Comptonia peregrina</i> and <i>Photinia melanocarpa (= Aronia melanocarpa)</i>. The herbaceous layer typically includes <i>Pteridium aquilinum, Schizachyrium scoparium, Deschampsia flexuosa, Danthonia spicata, Carex pensylvanica</i> and/or <i>Carex lucorum, Maianthemum canadense, Aralia nudicaulis, Melampyrum lineare, Fragaria virginiana, Rumex acetosella, Erechtites hieraciifolia, Corydalis sempervirens, Trientalis borealis</i>, and <i>Cypripedium acaule</i>. In the northern Appalachian Mountains, this community generally occurs at elevations from near sea level to 520 m (1700 feet) and may include species of northern affinity, such as <i>Viburnum nudum, Kalmia angustifolia, Betula papyrifera, Picea rubens</i>, and <i>Rhododendron canadense</i>. Periodic fires are probably necessary for persistence of this type, except at the most extreme sites. This association is differentiated from <i>~Pinus rigida / Corema conradii</i> Woodland (CEGL006154)$$ by the absence of <i>Corema</i>, and from other <i>Pinus rigida</i>-dominated woodlands of rocky habitats by the absence or very low cover of the scrub oak <i>Quercus ilicifolia</i>. |
Comm #7782
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CEGL002295
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accession code: VB.CC.4805.CEGL002295
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #7783
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CEGL003006
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accession code: VB.CC.5217.CEGL003006
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EcoArt 2002 |
0
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Comm #7784
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CEGL007820
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accession code: VB.CC.7413.CEGL007820
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #7785
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Quercus ilicifolia - Prunus pumila Shrubland
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accession code: VB.CC.31249.CEGL006121
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Eastern Ecology Working Group of... |
0
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This <i>Quercus ilicifolia</i> shrubland occurs on ridgetops, summits and rock outcrops in the northeastern United States. It occurs on extremely shallow, stable acidic soils over bedrock. Open bedrock is common. This shrubland is dominated by <i>Quercus ilicifolia</i>, which occurs with variable cover depending on site conditions. Associated shrubs include <i>Vaccinium angustifolium, Vaccinium pallidum, Comptonia peregrina, Kalmia angustifolia, Gaylussacia baccata, Photinia melanocarpa (= Aronia melanocarpa), Quercus prinoides</i>, and <i>Prunus pumila</i>. The herbaceous layer varies from sparse to well-developed depending on the density of shrub cover. Typical herbs include <i>Deschampsia flexuosa, Carex pensylvanica, Danthonia spicata, Schizachyrium scoparium, Pteridium aquilinum, Gaultheria procumbens, Comandra umbellata, Melampyrum lineare, Hypericum gentianoides, Corydalis sempervirens, Sibbaldiopsis tridentata (= Potentilla tridentata)</i>, plus <i>Andropogon gerardii</i> or <i>Polygonatum biflorum</i> at some sites. Scattered and stunted trees are common and include species from the surrounding ridgetop forests, such as <i>Quercus prinus, Quercus rubra, Quercus alba, Pinus rigida, Populus tremuloides, Betula populifolia</i>, and <i>Carya glabra</i>. |
Comm #7786
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Quercus alba - Fagus grandifolia Western Allegheny Plateau Forest
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accession code: VB.CC.31252.CEGL006144
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Eastern Ecology Working Group of... |
0
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This white oak - beech forest of the Western Allegheny Plateau occurs on deep, fine-textured soils of coves. <i>Quercus alba</i> is dominant, with associates including <i>Fagus grandifolia, Acer rubrum, Quercus rubra, Nyssa sylvatica</i>, and <i>Carya</i> spp. The subcanopy is characterized by <i>Fagus grandifolia, Acer rubrum, Acer saccharum</i>, and <i>Carya glabra</i>. The shrub layer is made up of <i>Cornus florida, Ostrya virginiana</i>, and <i>Castanea dentata</i>. The herbaceous layer is comprised of <i>Goodyera repens, Dioscorea quaternata, Polystichum acrostichoides, Ageratina altissima, Arisaema triphyllum, Actaea racemosa (= Cimicifuga racemosa), Carex blanda, Botrychium virginianum, Carex albursina, Polygonatum pubescens, Viola x palmata</i>, and <i>Prosartes lanuginosa (= Disporum lanuginosum)</i>. |
Comm #7787
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V.A.5
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accession code: VB.CC.214.VA5
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EcoArt 2002 |
0
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Comm #7788
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Quercus rubra - Acer saccharum - Liriodendron tulipifera Forest
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accession code: VB.CC.31238.CEGL006125
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Eastern Ecology Working Group of... |
0
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This red oak - sugar maple community is found primarily in the Allegheny Plateau and Appalachian Mountains of the United States, as well as on the northern Piedmont north to the Hudson Valley, with possible extensions east and west of those areas. It is typically found in coves, on moist north- and east-facing slopes and on well-drained flats. Soils are slightly acidic and of intermediate fertility. The closed-canopy tree layer is dominated by a mixture of oaks, primarily <i>Quercus alba</i> and <i>Quercus rubra</i>, with other hardwoods including <i>Acer saccharum, Acer rubrum</i>, and <i>Liriodendron tulipifera</i>. <i>Carya ovata, Carya alba (= Carya tomentosa), Nyssa sylvatica</i>, and <i>Quercus velutina</i> are possible associates. <i>Carya</i> spp. may share dominance in some stands. Dominance by <i>Acer rubrum</i> or <i>Liriodendron</i> may indicate a past disturbance history. A wide variety of more mesic associates, such as <i>Betula alleghaniensis, Betula lenta, Fagus grandifolia, Fraxinus americana</i>, and <i>Tilia americana</i> could occur but are negligible in dominance. In addition to <i>Acer saccharum</i> reproduction, some understory species may include <i>Carpinus caroliniana, Cercis canadensis, Cornus florida</i>, and <i>Ostrya virginiana</i>. Shrub and vine species include <i>Amelanchier laevis, Amelanchier arborea, Cornus</i> spp., <i>Hamamelis virginiana, Lindera benzoin, Viburnum acerifolium, Viburnum recognitum</i>, and <i>Vitis riparia</i>. Ericaceous shrubs, such as <i>Kalmia latifolia, Vaccinium angustifolium</i> and <i>Vaccinium pallidum</i>, may also be present but are not abundant. The ground layer species are highly variable but include <i>Caulophyllum thalictroides, Ageratina altissima, Dennstaedtia punctilobula, Podophyllum peltatum, Maianthemum racemosum (= Smilacina racemosa), Medeola virginiana, Thelypteris noveboracensis, Dryopteris marginalis, Dryopteris intermedia, Actaea</i> spp., and <i>Uvularia sessilifolia</i>. Exotic species, including <i>Rosa multiflora</i> and <i>Alliaria petiolata</i>, may be present in the shrub and herb layers of disturbed stands. |
Comm #7789
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(Iva imbricata) / Sporobolus virginicus - Spartina patens - (Paspalum distichum, Sesuvium portulacastrum) Herbaceous Vegetation
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accession code: VB.CC.36376.CEGL007839
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Southeastern Ecology Working Gro... |
0
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This community is a low dune community, known from the western peninsular and panhandle coasts of Florida. It occupies low, newly colonized beaches with low dunes, along the outer shore side of barrier islands and also occurs as a narrow ridge along inner bayshores with little wave action. <i>Sporobolus virginicus</i> is usually the most common species, with patches of <i>Spartina patens, Iva imbricata, Sesuvium portulacastrum</i>, and <i>Paspalum distichum</i>. It occurs along the western coast of Florida from at least Sarasota County north to Bay County. |
Comm #7790
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CEGL004722
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accession code: VB.CC.6242.CEGL004722
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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