| Add/Drop |
Name
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Reference
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Plots↓
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Description |
Comm #6181
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CEGL006114
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accession code: VB.CC.6671.CEGL006114
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #6182
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A.94
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accession code: VB.CC.2565.A94
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EcoArt 2002 |
0
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This alliance includes young, monospecific plantation stands of ~Pinus echinata$. These are cultivated forests which do not represent or approximate natural or near-natural vegetation structure. They are typically maintained as plantations for the harvest of forest products. The core concept of stands in this alliance are those which are artificially regenerated to dense stands which are managed and maintained for the extraction of forest products. Stands may be established with mechanical planting, but may also be established through other means. In most cases these stands support almost no other tree species in the overstory, and typically very little understory. This alliance rarely exceeds 20-40 years of age on most timberlands. |
Comm #6183
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Quercus rubra - Quercus prinus - Magnolia (acuminata, fraseri) / Acer pensylvanicum Forest
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accession code: VB.CC.37523.CEGL004817
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Fleming, G. P., and K. D. Patter... |
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This mixed northern red oak - chestnut oak forest is known from the northern part of the Southern Appalachians and extreme southern part of the Central Appalachians in southwestern Virginia and adjacent parts of West Virginia and Tennessee. It occurs on submesic slopes at various topographic positions and aspects from 600 to 1200 m (2000-4000 feet) elevation. Geologic substrate includes various sedimentary rocks, quartzite, granitic rocks, biotite gneiss, and feldspathic metagraywacke. Soils are deep, extremely acidic, and infertile. Vegetation is a mixed oak forest with a well-developed canopy 30 m or more tall in mature stands. <i>Quercus rubra</i> and <i>Quercus prinus</i> are the most characteristic canopy dominants, usually occurring in mixed stands with minor associates of <i>Magnolia acuminata, Magnolia fraseri, Quercus alba, Betula lenta, Acer rubrum, Carya</i> spp., <i>Fagus grandifolia, Tsuga canadensis</i>, and <i>Liriodendron tulipifera</i>. <i>Acer pensylvanicum</i> is the leading small tree/shrub dominant, with frequent associates of <i>Oxydendrum arboreum, Pinus strobus, Amelanchier arborea, Amelanchier laevis, Castanea dentata</i> (sprouts), <i>Hamamelis virginiana, Rhododendron maximum, Ilex montana, Viburnum acerifolium</i>, and <i>Vaccinium pallidum</i>. The herb layer is typically patchy to sparse, with <i>Medeola virginiana, Galax urceolata, Convallaria majuscula, Thelypteris noveboracensis</i>, and <i>Dennstaedtia punctilobula</i> occasionally attaining 5% cover in a plot; at higher elevations, the ferns may dominate strongly and cover more substantial areas. Other relatively constant but low-cover herbs include <i>Dioscorea quaternata, Eurybia divaricata, Solidago curtisii, Polygonatum biflorum, Polystichum acrostichoides, Conopholis americana, Clintonia umbellulata, Viola hastata, Uvularia puberula, Chamaelirium luteum, Zizia trifoliata</i>, and <i>Carex appalachica</i>. |
Comm #6184
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Menziesia pilosa - Vaccinium (erythrocarpum, simulatum, corymbosum) - Sorbus americana Shrubland
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accession code: VB.CC.37522.CEGL004819
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Fleming, G. P., and K. D. Patter... |
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This deciduous shrubland is known from several exposed, rock outcrop promontories between 1500 and 1675 m (5000-5500 feet) elevation in the Mount Rogers - Whitetop massif of the southern Virginia Blue Ridge. The exposed sites are subject to low winter temperatures, high winds, and ice storms, as well as high solar irradiation and moisture evaporation during the growing season. Slope profiles are strongly convex and surface cover of exposed bedrock and boulders is >25% in plot samples. Soils are extremely acidic (mean pH = 3.9) and low in base status. Vegetation is a deciduous shrubland codominated by <i>Menziesia pilosa</i>, stunted <i>Sorbus americana</i>, and either <i>Vaccinium simulatum</i> or <i>Vaccinium erythrocarpum</i>, or both. Associated shrubs and tree saplings include <i>Rubus canadensis, Crataegus punctata, Amelanchier laevis, Ribes rotundifolium, Ribes cynosbati, Prunus pensylvanica, Rhododendron calendulaceum</i>, and <i>Smilax tamnoides</i>. The most frequent herbs are <i>Danthonia compressa, Athyrium filix-femina ssp. asplenioides, Oclemena acuminata, Carex debilis var. rudgei, Heuchera villosa, Saxifraga michauxii, Maianthemum canadense, Carex pensylvanica</i>, and <i>Carex brunnescens ssp. sphaerostachya</i>. |
Comm #6185
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Salix lutea / Carex utriculata Shrubland
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accession code: VB.CC.32519.CEGL001220
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Western Ecology Working Group of... |
0
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Comm #6186
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A.3524
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accession code: VB.CC.1998.A3524
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #6187
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Picea sitchensis / Vaccinium ovalifolium - Oplopanax horridus Forest
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accession code: VB.CC.23536.PICEASITCHENSIS
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Western Ecology Working Group of... |
0
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Comm #6188
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Quercus muehlenbergii - Juglans major - (Ulmus rubra) / Verbesina virginica Forest
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accession code: VB.CC.34856.CEGL004927
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Southeastern Ecology Working Gro... |
0
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This association occurs on mesic limestone slopes in the Edwards Plateau of Texas. <i>Quercus muehlenbergii</i> dominates the canopy; other canopy species may include <i>Quercus buckleyi, Carya illinoinensis, Juglans major, Fraxinus texensis, Tilia americana, Ulmus crassifolia</i>, and <i>Ulmus rubra</i>. Subcanopy species may include <i>Morus microphylla</i> and <i>Juniperus ashei</i>. A diversity of shrubs and woody vines may include <i>Garrya ovata ssp. lindheimeri, Aesculus pavia, Frangula caroliniana, Ilex decidua, Viburnum rufidulum, Cornus drummondii</i>, and <i>Parthenocissus quinquefolia</i>. Herbaceous species include <i>Carex edwardsiana, Carex planostachys, Galium texense, Brickellia cylindracea, Desmodium paniculatum, Geum canadense, Verbesina virginica var. virginica, Adiantum capillus-veneris, Tripsacum dactyloides, Packera obovata (= Senecio obovatus), Chaetopappa effusa</i> (within its range), and <i>Elymus</i> spp. |
Comm #6189
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Picea sitchensis / Rubus spectabilis Woodland
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accession code: VB.CC.19218.PICEASITCHENSIS
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Western Ecology Working Group of... |
0
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Comm #6190
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Buchloe dactyloides Modified Herbaceous Vegetation
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accession code: VB.CC.36408.CEGL004948
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Southeastern Ecology Working Gro... |
0
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This association includes modified vegetation dominated by <i>Buchloe dactyloides</i>, in pastured and other disturbed areas, especially over clay or compacted soils. Other characteristic species include <i>Aristida oligantha, Ambrosia psilostachya, Bouteloua gracilis</i>, and <i>Sporobolus compositus</i>. |
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