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Platanus occidentalis - Acer negundo - Juglans nigra / Asimina triloba / Mertensia virginica Forest |
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Name: Platanus occidentalis - Acer negundo - Juglans nigra / Asimina triloba / Mertensia virginica Forest
Reference:
Description: This association occupies the higher elevations of floodplains, floodplain berms, and low terraces of major Mid-Atlantic rivers (e.g., Potomac, Shenandoah, Monocacy, James) and as the main floodplain vegetation on medium-sized rivers draining areas of nutrient-rich substrates (e.g., Antietam Creek, Bull Run). Soil texture is variable, ranging from silty-clay loams to loams over much of the range, and samples collected from plots had high base status. This vegetation type is a closed forest with mixed overstory dominance by <i>Platanus occidentalis, Juglans nigra, Carya cordiformis, Celtis occidentalis, Ulmus americana</i>, and, locally, <i>Fraxinus pennsylvanica, Liriodendron tulipifera</i>, and <i>Quercus shumardii</i>. <i>Acer saccharinum</i> is codominant in a minority of stands but absent or unimportant in many others. <i>Acer negundo</i> is strongly dominant in the subcanopy. <i>Asimina triloba</i> and/or <i>Lindera benzoin</i> dominate a moderately dense to dense shrub layer. The herb layer is rich in spring ephemerals and other nutrient-demanding species, including <i>Mertensia virginica, Asarum canadense, Chaerophyllum procumbens, Hydrophyllum canadense, Viola striata, Phlox divaricata, Podophyllum peltatum, Erythronium americanum, Dicentra canadensis, Sanicula odorata, Packera aurea (= Senecio aureus), Claytonia virginica, Festuca subverticillata, Carex jamesii, Carex grisea, Floerkea proserpinacoides, Osmorhiza longistylis</i>, and <i>Ranunculus abortivus</i>. Invasive exotics, especially <i>Alliaria petiolata, Veronica hederifolia, Duchesnea indica, Urtica dioica ssp. dioica, Microstegium vimineum</i>, and <i>Glechoma hederacea</i>, are usually abundant. 
Accession Code: VB.CC.37284.CEGL004073
Plot-observations of this Community Concept: 60
      Party Perspective according to: NatureServe (organization)
Perspective from: 17-Nov-2014 to: 01-May-2019
     
  • status: accepted
  • This Community's Level: association
  • This Community's Children: [none]
Names:   Common: Piedmont / Central Appalachian Rich Floodplain Forest
  Translated: American Sycamore - Box-elder - Black Walnut / Pawpaw / Virginia Bluebells Forest
  Scientific: Platanus occidentalis - Acer negundo - Juglans nigra / Asimina triloba / Mertensia virginica Forest
  Code: CEGL004073
  UID: ELEMENT_GLOBAL.2.758641 NatureServe ExplorerNatureServe Explorer logo