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A.1343 | EcoArt 2002
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Name: A.1343
Reference: EcoArt 2002
Description: This alliance encompasses temporarily flooded areas dominated by the nominal species with other perennial graminoids and forbs. Associated species vary with geography and substrate. These may include ~Juncus$ spp., ~Solidago$ spp., ~Eupatorium$ spp., ~Toxicodendron radicans, Campsis radicans, Polygonum$ spp., and ~Panicum$ spp. This community is variable in its expression, but ~Panicum virgatum$ tends to be the tallest plant and to represent most of the biomass. Variability occurs in the cover of ~Panicum virgatum$ and the richness of associated species. Grasses constitute most of the biomass. Shrubs, if present, will constitute less than 10% cover; these may include ~Morella cerifera (= Myrica cerifera), Alnus serrulata, Amorpha nitens, Baccharis halimifolia, Betula nigra, Hypericum densiflorum, Ilex decidua$, or ~Salix nigra$. This alliance may develop as zoned herbaceous vegetation on rocky riverbank complexes along larger rivers in the Ouachita Mountains (D. Zollner pers. comm.), as cobble/boulder bars such as in Kentucky along the Ohio River (J. Campbell pers. comm.), or sandbars of Coastal Plain rivers in Mississippi and other states. These sites receive water input from the rivers during flood events, becoming dry during rainless intervals. Other associations may remain to be described in this alliance, and its complete range of variation described. 
Accession Code: VB.CC.1117.A1343
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 26-Nov-1997 to: 17-Mar-2005
     
  • status: accepted
  • Community's Parent: V.A.5.N.j
  • This Community's Level: Alliance
  • This Community's Children: [none]
Names:   Scientific: PANICUM VIRGATUM TEMPORARILY FLOODED HERBACEOUS ALLIANCE
  Code: A.1343
  Common: Switchgrass Temporarily Flooded Herbaceous Alliance
(convergence) and Synonyms:
(undetermined) Panicum virgatum Temporarily Flooded Herbaceous Alliance