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Populus tremuloides - Pseudotsuga menziesii / Amelanchier alnifolia Forest | Western Ecology Working Group of...
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Name: Populus tremuloides - Pseudotsuga menziesii / Amelanchier alnifolia Forest Reference: Western Ecology Working Group of... Description: This predominantly deciduous, part evergreen forest is uncommon but wide-ranging, occurring from southern Utah mountains to the Yellowstone Plateau of eastern Idaho and northwestern Wyoming. It occurs between 1700 and 2300 m (5600-7500 feet) elevation. Stands are usually on moderate to steep slopes of various aspects, and soils are generally derived from sedimentary parent materials. The vegetative structure of this association is complex. It consists of multilayers of trees, shrubs and herbs. The characteristic feature is the prominence of Pseudotsuga menziesii in the overstory canopy (average cover 20%), along with a strong dominance of Populus tremuloides (average cover 60%). A tall-shrub stratum is present and dominated by one or a combination of the following shrubs: Amelanchier alnifolia, Prunus virginiana, or Acer grandidentatum. A distinct low-shrub layer is also present and is comprised of Symphoricarpos spp., Rosa woodsii, Mahonia repens, Spiraea betulifolia, and Paxistima myrsinites. The herbaceous layer is an abundant mix of graminoids and forbs. Common species include Elymus spp., Thalictrum spp., Osmorhiza spp., and Geranium viscosissimum. Occasionally Calamagrostis rubescens, Carex geyeri, or Arnica cordifolia may be abundant.  Accession Code: VB.CC.21564.POPULUSTREMULOI Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 26-Nov-1997 to: 17-Nov-2014
	status: accepted Community's Parent: Populus tremuloides - Pseudotsuga menziesii Forest Alliance This Community's Level: Association This Community's Children: [none]		Names:   Translated: Quaking Aspen - Douglas-fir / Saskatoon Serviceberry Forest   Code: CEGL000543   UID: ELEMENT_GLOBAL.2.685686 NatureServe Explorer   Scientific: Populus tremuloides - Pseudotsuga menziesii / Amelanchier alnifolia Forest (convergence) and Synonyms: (undetermined) Populus tremuloides - Pseudotsuga menziesii / Amelanchier alnifolia Forest