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Populus tremuloides / Wyethia amplexicaulis Forest | Western Ecology Working Group of...
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Name: Populus tremuloides / Wyethia amplexicaulis Forest
Reference: Western Ecology Working Group of...
Description: These park-like deciduous forests occur in the mountains of Utah, Nevada, Idaho, Wyoming, and possibly Colorado. Elevations are mostly below 2100 m. Sites are generally flat to gently sloping (<25%), and soils are typically heavy clays. This association has two canopies, a moderately dense (70% cover) tree canopy that is dominated by Populus tremuloides, and a dense herbaceous layer dominated by Wyethia amplexicaulis. Scattered shrub such as Symphoricarpos oreophilus and Amelanchier alnifolia are often present, but do not form a canopy. Other herbaceous species may include Senecio serra, Hackelia floribunda, Achillea millefolium, Osmorhiza spp., Bromus carinatus, Elymus trachycaulus, Elymus glaucus, and Carex spp. The introduced species Poa pratensis and Taraxacum officinale are common. Because of the simple, open stand structure and the dominance of an unpalatable forb, this type may be the partly the result of historic overgrazing by livestock. Succession to a conifer vegetation type is unlikely in stands of this association because there is little conifer regeneration. 
Accession Code: VB.CC.25812.POPULUSTREMULOI
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 26-Nov-1997 to: 17-Nov-2014
      Names:   Translated: Quaking Aspen / Northern Mule's-ears Forest
  UID: ELEMENT_GLOBAL.2.689484 NatureServe ExplorerNatureServe Explorer logo
  Code: CEGL000622
  Scientific: Populus tremuloides / Wyethia amplexicaulis Forest
(convergence) and Synonyms:
(undetermined) Populus tremuloides / Wyethia amplexicaulis Forest