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Reference
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Description |
Comm #7881
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Panicum rigidulum - Hibiscus moscheutos Wet Meadow
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accession code: urn:lsid:vegbank.org:commConcept:33106-{53B3297C-1B2D-45C5-BBC4-78881C48EF16}
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NatureServe Biotics 2019 |
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This association occurs in southern North Carolina, South Carolina, and potentially farther south on recent deposits of sand along blackwater rivers, generally on point bars, but sometimes along straight stretches of channel. Vegetation is patchy, sparse over most of the area of the community, but ranging to dense in different parts of even small patches. <i>Panicum rigidulum, Phanopyrum gymnocarpon, Panicum hemitomon</i>, or <i>Polygonum punctatum</i> are usually the most common species. Other herbs include <i>Polygonum</i> spp., <i>Boehmeria cylindrica, Hydrocotyle verticillata, Sacciolepis striata, Cyperus polystachyos</i>, and <i>Micranthemum umbrosum</i>. Ruderal species such as <i>Digitaria</i> spp., <i>Eupatorium compositifolium</i>, and <i>Cyperus</i> spp. often occur in small numbers. <i>Hibiscus moscheutos</i> is prominent in some examples. Shrubs typical of riverbanks and other adjacent forest communities are often present in small numbers, including <i>Cyrilla racemiflora, Cornus foemina</i>, and <i>Vaccinium elliottii</i>. Young trees or small numbers of older trees are often present, including <i>Betula nigra, Taxodium distichum, Quercus laurifolia, Quercus lyrata</i>, and <i>Carpinus caroliniana</i>. |
Comm #7882
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Betula populifolia / Schizachyrium scoparium - Ionactis linariifolius Sparse Vegetation
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accession code: VB.CC.31412.CEGL006276
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Eastern Ecology Working Group of... |
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This inland sand barren community occurs in Kennebec County, Maine. One occurrence has been reported from Canterbury, New Hampshire. It occurs in inland areas where the soil is essentially pure shifting sand. Sands may form low shifting dunes or occur as a flat plain. In Maine, occurrences appear to be the result of land-use patterns that resulted in xeric sand barren associations nearly devoid of trees (e.g., overgrazing). The single New Hampshire example occurs on a 1.5 m to 1.8 m high point bar along the Merrimack River. The openness of this occurrence is presumably maintained by windblown shifting sand and intermittent flooding but the role of anthropogenic disturbance needs investigation. This community is primarily 90% sand with scattered vegetation. The characteristic species <i>Schizachyrium scoparium, Betula populifolia, Ionactis linariifolius, Juncus greenei, Oenothera biennis, Pinus strobus</i> and <i>Quercus rubra</i> are shared between the New Hampshire site and most of the Maine sites. The Maine occurrences also contain <i>Populus tremuloides, Abies balsamea, Juniperus communis</i> and <i>Carex umbellata</i> with high frequency. The New Hampshire occurrence contains <i>Aristida basiramea, Digitaria cognata, Cyperus dentatus, Solidago bicolor, Dichanthelium clandestinum, Trichostema dichotomum</i> and <i>Bulbostylis capillaris</i>, none of which are reported in the other occurrences. |
Comm #7883
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Fraxinus americana - Juniperus virginiana / Talinum teretifolium - Polygonum tenue - Opuntia humifusa Wooded Herbaceous Vegetation
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accession code: VB.CC.31022.CEGL006294
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Eastern Ecology Working Group of... |
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This community is known only from scattered mafic outcrops in the northern Virginia Piedmont. It occupies exposed, xeric bedrock exposures and has a mixed physiognomy best characterized as herbaceous with scattered, stunted trees. <i>Fraxinus americana</i> and <i>Juniperus virginiana</i> are the most typical woody plants. Dominant and diagnostic lower-strata species include <i>Opuntia humifusa</i>, <i>Talinum teretifolium</i>, <i>Polygonum tenue</i>, <i>Krigia virginica</i>, <i>Carex pensylvanica</i>, and <i>Danthonia spicata</i>. |
Comm #7884
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CEGL008517
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accession code: VB.CC.7838.CEGL008517
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
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Comm #7885
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Morella pensylvanica - Prunus maritima Shrubland
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accession code: VB.CC.31345.CEGL006295
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Eastern Ecology Working Group of... |
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This association comprises maritime dune shrublands of protected slopes and hollows of dry, stabilized maritime backdunes along the northern Atlantic Coast. It is dominated by <i>Morella pensylvanica (= Myrica pensylvanica)</i> and <i>Prunus maritima</i>. Additional shrubs that are commonly present but with low cover can include <i>Rosa carolina, Rosa rugosa, Baccharis halimifolia, Rhus typhina</i>, or <i>Juniperus virginiana</i>. Although <i>Rosa rugosa</i> is not a native species, it is naturalized and is nearly restricted to this vegetation, where it grows in similar habit and physiognomy as the other two shrubs characteristic of this vegetation. The herbaceous layer tends to be sparse and low, particularly where shrub growth is dense, and can include dune grassland or adjacent upland species such as <i>Ammophila breviligulata, Solidago sempervirens, Hudsonia tomentosa, Lechea maritima, Juncus greenei, Carex silicea, Polygonella articulata, Symphyotrichum subulatum (= Aster subulatus), Solidago rugosa, Achillea millefolium, Oenothera parviflora, Euthamia</i> spp., <i>Cyperus grayi, Cyperus polystachyos, Schizachyrium scoparium</i>, and others. Typical vine associates are <i>Toxicodendron radicans, Parthenocissus quinquefolia</i>, and <i>Smilax</i> spp. Large patches of open unvegetated or sparsely vegetated sand are present in some examples. Depending on exposure, these shrublands range from over 2 m tall in sheltered areas to less than 1 m tall in areas with greater exposure to winds and storms. |
Comm #7886
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CEGL003032
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accession code: VB.CC.5243.CEGL003032
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #7887
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CEGL004523
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accession code: VB.CC.6069.CEGL004523
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #7888
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Peucephyllum schottii Shrubland Alliance
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accession code: VB.CC.18287.PEUCEPHYLLUMSCH
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Western Ecology Working Group of... |
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This alliance occurs at mid elevations in the Mojave Desert of California and southern Nevada. Elevation ranges from 1000-1500 m. Stands occur on disturbed upland sites. The vegetation is characterized by an open, xeromorphic shrub layer dominated by Peucephyllum schottii. Gutierrezia microcephala is codominant is some stands. |
Comm #7889
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CEGL001374
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accession code: VB.CC.3958.CEGL001374
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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Comm #7890
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CEGL001452
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accession code: VB.CC.4036.CEGL001452
NOT CURRENTLY ACCEPTED
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EcoArt 2002 |
0
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