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Arctic Ericaceous Dwarf-shrub Tundra Alliance | NatureServe Biotics 2019
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Name: Arctic Ericaceous Dwarf-shrub Tundra Alliance
Reference: NatureServe Biotics 2019
Description: This tundra alliance is defined by vegetation dominated by dwarf- to low ericaceous shrubs in the arctic and subarctic regions of Alaska and Canada. The alliance is characterized by high constancy of, and indicated by the presence of, the ericaceous shrubs <i>Ledum palustre ssp. decumbens, Cassiope tetragona</i>, and <i>Vaccinium vitis-idaea</i>. The moss <i>Hylocomium splendens</i> and lichen species in the genus <i>Cladonia</i> may exceed 20% cover. The low shrubs <i>Betula nana, Salix pulchra</i> and dwarf-shrubs <i>Salix phlebophylla</i> and <i>Diapensia lapponica</i> may reach high abundances but do not assume dominance. This alliance is common in semi-protected, mesic sites in the hills and mountains where snow cover is retained. Substrates are acidic to non-acidic; patch size is small to large. 
Accession Code: urn:lsid:vegbank.org:commConcept:39519-{6F71DF21-3E26-4447-A60E-CB17B1D1A789}
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 19-Jan-2016 to: ongoing
      Names:   UID: ELEMENT_GLOBAL.2.1042070
  Code: A4334
  Translated: Arctic Ericaceous Dwarf-shrub Tundra Alliance
  Common: Arctic Ericaceous Dwarf-shrub Tundra
  Scientific: Arctic Ericaceous Dwarf-shrub Tundra Alliance