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Andropogon gerardii - Panicum virgatum Wet Prairie Alliance | NatureServe Biotics 2019
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Name: Andropogon gerardii - Panicum virgatum Wet Prairie Alliance
Reference: NatureServe Biotics 2019
Description: This alliance is found scattered throughout the central Midwest from eastern South Dakota to eastern Oklahoma and east to southern Michigan and western Ohio. Tallgrasses dominate and often form dense stands. <i>Andropogon gerardii</i> and <i>Panicum virgatum</i> are common to dominant on most examples. <i>Calamagrostis canadensis, Pascopyrum smithii</i> (in the west), <i>Sorghastrum nutans</i>, and <i>Spartina pectinata</i> are frequently present to abundant. Sites that experience seasonal droughts can have significant midgrasses, especially <i>Schizachyrium scoparium</i>. Woody vegetation tends to increase in the absence of fire and can take over sites left unburned for long periods. Forbs are abundant, especially in the east. Among these forbs are Asteraceae spp., <i>Helianthus grosseserratus, Lysimachia quadrifolia, Pycnanthemum virginianum, Ratibida columnifera, Ratibida pinnata, Thalictrum dasycarpum</i>, and <i>Zizia aurea</i>. The alliance occurs on sites that are wet or even flooded for part of the growing season but not to the degree that they are true wetlands. These are typically in ravines, shallow depressions, or flat lakeplains. Soils are usually fine-textured but coarse-textured surficial soils can be present if an impervious subsurface layer or a shallow water table keeps sites wet. 
Accession Code: urn:lsid:vegbank.org:commConcept:39266-{F57ACC9B-107F-4F02-BB76-CE1953134B51}
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 18-Dec-2014 to: ongoing
      Names:   UID: ELEMENT_GLOBAL.2.900122 NatureServe ExplorerNatureServe Explorer logo
  Code: A4056
  Translated: Big Bluestem - Panicum virgatum Wet Prairie Alliance
  Common: Wet-Mesic Tallgrass Prairie
  Scientific: Andropogon gerardii - Panicum virgatum Wet Prairie Alliance