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Vaccinium uliginosum / Sibbaldiopsis tridentata Sparse Vegetation | Eastern Ecology Working Group of...
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Name: Vaccinium uliginosum / Sibbaldiopsis tridentata Sparse Vegetation Reference: Eastern Ecology Working Group of... Description: These sparsely vegetated rocky balds are found on subalpine and alpine summits of the northern Appalachian Mountains. They are on dry acidic rocky summits, ridges and outcrops composed of resistant granitic bedrock, mostly at elevations between 3000-5000 feet, sometimes as low as 1800 feet. Soil development is minimal, with vascular vegetation confined to crevices. Expanses of bare rock with crustose lichens predominate. Vascular vegetation is usually less than 25% cover overall, although in patches coverage may approach 70%. The dominant plants are Vaccinium uliginosum, Vaccinium vitis-idaea, Empetrum nigrum, Empetrum eamesii ssp. atropurpureum, and Sibbaldiopsis tridentata. Juncus trifidus and, at higher elevations, Carex bigelowii may be present, but in far lower abundance than they are seen in alpine habitats. This association is related to the alpine Vaccinium uliginosum - Rhododendron lapponicum / Juncus trifidus Dwarf-shrubland (CEGL006298), but occurs at lower elevations and lacks characteristic alpine plants such as Diapensia lapponica, Agrostis mertensii, Rhododendron lapponicum, etc. It differs from lower elevation open summits in the presence of subalpine Vaccinium uliginosum (and sometimes Juncus trifidus or Carex bigelowii).  Accession Code: VB.CC.25066.VACCINIUMULIGIN Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 06-Jul-1999 to: 17-Nov-2014
	status: accepted Community's Parent: Open Pavement Sparsely Vegetated Alliance This Community's Level: Association This Community's Children: [none]		Names:   Translated: Bog Blueberry / Mountain-cinquefoil Sparse Vegetation   UID: ELEMENT_GLOBAL.2.688404 NatureServe Explorer   Code: CEGL006533   Scientific: Vaccinium uliginosum / Sibbaldiopsis tridentata Sparse Vegetation   Common: Subalpine Rock Bald (convergence) and Synonyms: (undetermined) Vaccinium uliginosum / Sibbaldiopsis tridentata Sparse Vegetation