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Polygonum cuspidatum Ruderal Wet Meadow Alliance | NatureServe Biotics 2019
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Name: Polygonum cuspidatum Ruderal Wet Meadow Alliance
Reference: NatureServe Biotics 2019
Description: This alliance covers significant (near-monocultural) stands of the exotic forb <i>Polygonum cuspidatum</i> found in temporarily flooded habitats in the eastern United States. Stands of this vegetation may be dense and shrubby, or more open. Other disturbance-oriented forbs may be present, such as <i>Boehmeria cylindrica, Impatiens</i> spp., <i>Leersia virginica, Phalaris arundinacea, Polygonum hydropiper, Polygonum hydropiperoides</i>, and <i>Polygonum persicaria</i>, along with seedlings of some woody plants (e.g., <i>Platanus occidentalis, Salix nigra</i>, and <i>Acer saccharinum</i>). The invasive exotic herbs <i>Alliaria petiolata</i> and <i>Microstegium vimineum</i> may be present. The patches of <i>Polygonum</i> grow over and shade out other plant species, so diversity is not high. Stands are primarily found along disturbed riverbanks and bars that may flood but are not inundated for the majority of the growing season. These disturbed habitats flood very frequently and have lots of light and rocky or sandy soil. 
Accession Code: urn:lsid:vegbank.org:commConcept:38293-{61CCB375-93EF-42C3-A129-6255644CDC7A}
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 18-Dec-2014 to: ongoing
      Names:   UID: ELEMENT_GLOBAL.2.899188 NatureServe ExplorerNatureServe Explorer logo
  Code: A2005
  Translated: Japanese Knotweed Ruderal Wet Meadow Alliance
  Common: Ruderal Japanese Knotweed Wet Meadow
  Scientific: Polygonum cuspidatum Ruderal Wet Meadow Alliance
(convergence) and Synonyms:
(similar) A.2005
(similar) Polygonum cuspidatum Temporarily Flooded Herbaceous Alliance