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Arctic Rush/Grass, Forb, Cryptogam Tundra Alliance | NatureServe Biotics 2019
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Name: Arctic Rush/Grass, Forb, Cryptogam Tundra Alliance
Reference: NatureServe Biotics 2019
Description: This alliance is most common in the high arctic but also occurs in the low arctic. Moist tundra types are associated with mesotopographic highs such as raised areas along drainages, the centers of high-centered polygons and the ridges of low-centered polygons. Sites are underlain by permafrost and patch size is small. Shrubs are prostrate (low) to dwarf. Low-shrub cover does not exceed 25% and dwarf-shrub cover is variable. Common low-shrub species are <i>Salix pulchra, Betula nana</i>, and <i>Ledum palustre ssp. decumbens</i> with the occurrence of <i>Betula nana</i> decreasing in the high arctic. Common dwarf-shrub species are <i>Vaccinium vitis-idaea, Cassiope tetragona</i>, and <i>Dryas integrifolia</i>. Vegetation is dominated by sedges such as <i>Eriophorum angustifolium, Carex aquatilis var. stans</i>, and <i>Luzula arctica</i> and may include <i>Eriophorum vaginatum</i>, but sites are not tussocked, Moist- to dry-site mosses and lichens are abundant, with notable presence of crustose lichens. 
Accession Code: urn:lsid:vegbank.org:commConcept:39529-{F1B2CA6A-FC00-434A-964E-A9136E5A60A0}
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 19-Jan-2016 to: ongoing
      Names:   UID: ELEMENT_GLOBAL.2.1042190
  Code: A4344
  Translated: Arctic Rush/Grass, Forb, Cryptogam Tundra Alliance
  Common: Arctic Rush/Grass, Forb, Cryptogam Tundra
  Scientific: Arctic Rush/Grass, Forb, Cryptogam Tundra Alliance