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Arctic Acidic Lichen - Sparse Dwarf-shrub Tundra Alliance | NatureServe Biotics 2019
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Name: Arctic Acidic Lichen - Sparse Dwarf-shrub Tundra Alliance
Reference: NatureServe Biotics 2019
Description: This is a common group on acidic and basic substrates in the hills and mountains of arctic and subarctic Alaska and Canada, and possibly in the arctic lowlands. Common slope positions include valleys, sideslopes, and summits and ridges. The canopy is sparse due to extreme exposure and stands occur on exposed bedrock or unstable substrates. Sites are typically dry to mesic. Soils are typically thin, stony, and well-drained. Patch size is small to matrix-forming. Total vascular plant cover is less than 25%, and lichen and moss cover are variable, but often exceed 25%. Common dwarf-shrub species include <i>Dryas octopetala, Empetrum nigrum, Vaccinium uliginosum, Dryas integrifolia, Loiseleuria procumbens</i>, and <i>Salix phlebophylla</i>. Herbaceous species may include <i>Antennaria alpina, Anthoxanthum monticola ssp. alpinum, Minuartia obtusiloba, Carex scirpoidea, Carex microchaeta, Lupinus arcticus</i>, and <i>Festuca altaica</i>. Foliose and fruticose lichens may dominate and include <i>Umbilicaria</i> spp., <i>Rhizocarpon geographicum, Cladonia stellaris, Racomitrium lanuginosum, Flavocetraria</i> spp., and <i>Alectoria ochroleuca</i>. 
Accession Code: urn:lsid:vegbank.org:commConcept:39515-{AEDCB634-64EE-4736-89A9-3853AADEE4EE}
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 19-Jan-2016 to: ongoing
      Names:   UID: ELEMENT_GLOBAL.2.1042030
  Code: A4330
  Translated: Arctic Acidic Lichen - Sparse Dwarf-shrub Tundra Alliance
  Common: Arctic Acidic Lichen - Sparse Dwarf-shrub Tundra
  Scientific: Arctic Acidic Lichen - Sparse Dwarf-shrub Tundra Alliance