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A.1086 | EcoArt 2002
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Name: A.1086
Reference: EcoArt 2002
Description: This alliance contains alpine and boreal dwarf-shrublands and other communities known as "boreal heathlands," characterized by a very open canopy of black spruce, generally at high elevations and on acidic bedrock. The canopy is characterized by stunted and widely spaced ~Picea mariana$, sometimes in association with ~Picea rubens, Betula papyrifera var. cordifolia (= Betula cordifolia), Sorbus americana$, and ~Abies balsamea$. The shrub layer, characterized by ericaceous species such as ~Ledum groenlandicum, Kalmia angustifolia, Vaccinium vitis-idaea, Vaccinium uliginosum, Rhododendron canadense$, as well as ~Empetrum nigrum$, is generally quite dense, but may be patchy and interspersed with expanses of bare or lichen-covered bedrock. Herbaceous species, such as ~Paronychia argyrocoma (= var. albimontana)$ and ~Juncus trifidus$, are usually confined to crevices. This alliance occurs at high elevations, usually just above tree line, in Maine, New Hampshire, Vermont, and New York. It is also likely to occur in Canada. 
Accession Code: VB.CC.856.A1086
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 26-Nov-1997 to: 17-Mar-2005
     
  • status: accepted
  • Community's Parent: IV.A.1.N.d
  • This Community's Level: Alliance
  • This Community's Children: [none]
Names:   Scientific: KALMIA ANGUSTIFOLIA - LEDUM GROENLANDICUM DWARF-SHRUBLAND ALLIANCE
  Code: A.1086
  Common: Sheep Laurel - Labrador-tea Dwarf-shrubland Alliance
(convergence) and Synonyms:
(undetermined) Kalmia angustifolia - Ledum groenlandicum Dwarf-shrubland Alliance