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Danthonia compressa Herbaceous Alliance | Southeastern Ecology Working Gro...
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Name: Danthonia compressa Herbaceous Alliance
Reference: Southeastern Ecology Working Gro...
Description: This alliance includes montane grasslands dominated by Danthonia compressa often with significant cover by the dwarf-shrub Sibbaldiopsis tridentata or by Rhododendron calendulaceum. Species dominance is highly variable from occurrence to occurrence and within occurrences. Associated species can include Carex brunnescens, Carex pensylvanica, Carex debilis, Oclemena acuminata (= Aster acuminatus), Deschampsia flexuosa, Stachys clingmanii, Solidago glomerata, Prenanthes roanensis, Smilax herbacea, and Houstonia serpyllifolia. Typical shrubs are Rhododendron calendulaceum, Rhododendron catawbiense, Menziesia pilosa, Pieris floribunda, Vaccinium corymbosum, Vaccinium simulatum, and Rubus canadensis. These grasslands occur on high-elevation (usually above 1500 m or 5000 feet), often south- to southwest-facing domes, ridgetops and gentle slopes. Strong winds, high rainfall, frequent fog, shallow, rocky soils, and extremes of temperature and moisture are characteristic of these environments. Grasslands in this alliance occur at the highest elevations of the southern Appalachian Mountains, often adjacent to montane shrublands or dwarfed forests dominated by Fagus grandifolia or Quercus rubra. 
Accession Code: VB.CC.17907.DANTHONIACOMPRE
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 26-Nov-1997 to: 01-May-2019
     
  • status: accepted
  • This Community's Level: Alliance
  • This Community's Children: [none]
Names:   Scientific: Danthonia compressa Herbaceous Alliance
  Translated: Mountain Oatgrass Herbaceous Alliance
  UID: HIGHER_CLASS_UNIT.2.126576 NatureServe ExplorerNatureServe Explorer logo
  Code: A.1280