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Alnus viridis ssp. crispa Shrub Bald Alliance | NatureServe Biotics 2019
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Name: Alnus viridis ssp. crispa Shrub Bald Alliance
Reference: NatureServe Biotics 2019
Description: Stands of this primarily deciduous shrubland alliance are dominated by <i>Alnus viridis ssp. crispa</i>, typically 1.5-2 m in height, rarely producing a closed canopy but typically occurring as uniformly spaced clumps about 1 m apart. <i>Rubus allegheniensis</i> is often a codominant. Other shrub species occur with low coverage and include <i>Rhododendron catawbiense, Vaccinium corymbosum</i>, and <i>Crataegus</i> spp. Openings in the shrub canopy are dominated by herbs, mainly <i>Carex pensylvanica</i> and <i>Carex debilis var. rudgei</i> and in moister areas, bryophyte cover can be up to 75%, with <i>Polytrichum commune</i> typical. This shrubland alliance occurs at the highest elevations of the southern Appalachian Mountains (above 1750 m [5800 feet]) on summit ridges of the Roan Mountain massif. 
Accession Code: urn:lsid:vegbank.org:commConcept:38130-{52D8F7B5-89A8-4DAC-B1F2-DE82CF8E7290}
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 26-Sep-2014 to: ongoing
      Names:   UID: ELEMENT_GLOBAL.2.899042 NatureServe ExplorerNatureServe Explorer logo
  Code: A0929
  Translated: Mountain Alder Shrub Bald Alliance
  Common: Southern Appalachian Mountain Alder Shrub Bald
  Scientific: Alnus viridis ssp. crispa Shrub Bald Alliance