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Name
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Reference
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Description |
Comm #7221
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Pinus ponderosa - Populus tremuloides / Carex spp. - (Poa spp.) Forest
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accession code: VB.CC.32910.CEGL000191
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Western Ecology Working Group of... |
0
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This is a high-elevation Ponderosa pine association, found between 1680 and 2105 m (5500-6900 feet). It occurs on all aspects and on gentle slopes (2-20%). This association supports lush vegetation adjacent to streambanks in bottoms with internal drainage. The soil surface is wet in spring and early summer, and the water table is near or at the surface year round. This is an open forest association with large <i>Pinus ponderosa</i> and <i>Populus tremuloides</i> trees and an open understory. In the tree understory <i>Juniperus occidentalis</i> is common, with occasional <i>Pinus contorta var. latifolia</i> and <i>Abies concolor</i>. Shrubs occur at low cover, the most common shrubs include <i>Artemisia tridentata ssp. vaseyana, Amelanchier alnifolia, Symphoricarpos mollis, Mahonia aquifolium (= Berberis aquifolium)</i>, and <i>Ribes cereum</i>. The herbaceous layer is dominated by <i>Poa nervosa, Achillea millefolium, Elymus elymoides, Festuca idahoensis</i>, and <i>Fragaria virginiana</i>. |
Comm #7222
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Acer (rubrum, saccharinum) - Fraxinus pennsylvanica - Ulmus americana / Boehmeria cylindrica Forest
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accession code: VB.CC.30977.CEGL006548
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Eastern Ecology Working Group of... |
0
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This swamp forest ranges from New Jersey and Pennsylvania, south to West Virginia and Kentucky, primarily in the Lower New England / Northern Piedmont, Piedmont, and Central Appalachian ecoregions. It occupies poorly drained backswamps, sloughs, abandoned oxbows, and depressions of large-stream and river floodplains. Soils are flooded at least early in the growing season, and water may be ponded in shallow hollows for most of the year. The overstory is dominated by variable combinations of <i>Fraxinus pennsylvanica, Acer rubrum</i>, and <i>Acer saccharinum</i>, with <i>Ulmus americana</i> as a common overstory and understory associate. In Virginia and Maryland, <i>Acer saccharinum</i> is most characteristic of large-river (e.g., the James and Potomac) floodplains, where <i>Acer rubrum</i> is nearly absent. On the smaller order streams that support this type, <i>Acer saccharinum</i> is usually absent. The shrub layer is typically very sparse or absent, but vines, especially <i>Toxicodendron radicans, Parthenocissus quinquefolia</i>, and <i>Vitis</i> spp., are common. The herb layer is usually moderately dense or dense except in deeper hollows. <i>Boehmeria cylindrica, Saururus cernuus, Impatiens capensis, Cinna arundinacea, Geum canadense, Glyceria striata, Leersia virginica, Polygonum arifolium, Polygonum punctatum, Pilea pumila, Lobelia cardinalis, Commelina virginica, Carex stipata, Carex grayi, Carex tribuloides, Carex crinita</i>, and <i>Carex lupulina</i> are characteristic species. In the northern part of the range, examples may contain patches of <i>Symplocarpus foetidus</i>. |
Comm #7223
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Symplocarpus foetidus - Impatiens capensis Herbaceous Vegetation
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accession code: VB.CC.31037.CEGL006567
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Eastern Ecology Working Group of... |
0
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This small seepage wetland vegetation occurs in low-lying areas such as streamheads, lower slope drainages, and the borders of small streams where groundwater emerges. The substrate is mucky, with rocks and boulders often visibly protruding above the surface. Little quantitative data exist for this vegetation, although it appears to be quite common in the northeastern United States. Typically, this vegetation is shaded by tree species of higher ground and surrounding edges of the community, but these species are not characteristic of the vegetation and vary widely among occurrences. <i>Lindera benzoin</i> may occur, particularly at the edges. Characteristic herbaceous species are <i>Symplocarpus foetidus, Impatiens capensis</i>, and <i>Arisaema triphyllum</i>. Other common associates are variable but may include <i>Veratrum viride, Pilea pumila, Cardamine pensylvanica, Saxifraga pensylvanica, Carex canescens, Caltha palustris</i>, and <i>Viola sororia</i>. |
Comm #7224
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CEGL002931
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accession code: VB.CC.5177.CEGL002931
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #7225
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CEGL002935
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accession code: VB.CC.5178.CEGL002935
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EcoArt 2002 |
0
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Comm #7226
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CEGL002937
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accession code: VB.CC.5179.CEGL002937
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #7227
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CEGL002939
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accession code: VB.CC.5180.CEGL002939
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #7228
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CEGL002941
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accession code: VB.CC.5181.CEGL002941
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #7229
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Pinus discolor / Quercus rugosa Woodland
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accession code: VB.CC.24792.PINUSDISCOLORQU
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Western Ecology Working Group of... |
0
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Comm #7230
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Alaska Arctic Polygonal Ground Wet Sedge Tundra
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accession code: urn:lsid:ecoobs.vegbank.org:commConcept:8974-{41C8DCE9-3F62-49C7-BE2C-06F0891C9D90}
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Western Ecology Working Group of... |
0
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