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Pseudotsuga menziesii / Arnica cordifolia Forest | Western Ecology Working Group of...
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Name: Pseudotsuga menziesii / Arnica cordifolia Forest
Reference: Western Ecology Working Group of...
Description: This forest association occurs in the central and northern Rocky Mountains from the lower to mid montane zone. Elevations range from 1430 to 2900 m (4690-9500 feet). Sites are variable but generally on dry aspects. Substrates are variable and may be very gravelly or not, with soil textures ranging from sandy loam to silt. Ground surface has high cover of litter, often 4-7 cm deep, relatively low cover of surface rock (<10%), and low cover of bare soil. The vegetation is characterized by a relatively dense (60-90% cover), evergreen needle-leaved tree canopy strongly dominated by Pseudotsuga menziesii with Arnica cordifolia or Astragalus miser dominating or codominating the sparse to moderately dense understory. Other mature seral tree species present include Pinus contorta, Pinus flexilis, or Juniperus scopulorum. The dense canopy limits understory development so only scattered shrubs may be present, not enough to form a shrub layer. The herbaceous layer, whether depauperate or moderately dense, dominates the forest floor and is dominated or codominated by Arnica cordifolia and Astragalus miser. 
Accession Code: VB.CC.18700.PSEUDOTSUGAMENZ
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 26-Nov-1997 to: 17-Nov-2014
      Names:   Translated: Douglas-fir / Heartleaf Leopardbane Forest
  UID: ELEMENT_GLOBAL.2.684590 NatureServe ExplorerNatureServe Explorer logo
  Code: CEGL000427
  Scientific: Pseudotsuga menziesii / Arnica cordifolia Forest
  Common: Douglas-fir / Heartleaf Arnica Forest
(convergence) and Synonyms:
(undetermined) Pseudotsuga menziesii / Arnica cordifolia Forest