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Populus tremuloides / Amelanchier alnifolia - Symphoricarpos oreophilus / Thalictrum fendleri Forest | NatureServe Biotics 2019
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Name: Populus tremuloides / Amelanchier alnifolia - Symphoricarpos oreophilus / Thalictrum fendleri Forest Reference: NatureServe Biotics 2019 Description: This is a low- to moderate-elevation aspen forest association that occurs in the central and southern Rocky Mountains west into northeastern Nevada. Elevation ranges from 1770 to 2678 m (5800-8780 feet). It occurs on gentle slopes (&lt;25%) on lower and midslope positions and occasionally on valley bottoms to moderately steep to steep slopes (33-65%). Aspects are variable. The soils are well-drained sandy loams to sandy clay loams. This montane deciduous forest is multi-layered and is dominated by <i>Populus tremuloides</i> in the tree canopy (generally &gt;70% relative cover of tree canopy). <i>Abies lasiocarpa</i> or <i>Pseudotsuga menziesii</i> are occasionally present in small amounts (&lt;10% cover). The undergrowth has a multi-layered structure of tall shrubs, low shrubs, and a fairly low-growing layer of herbaceous species. The association is characterized by the presence of both a tall- and short-shrub layer, and the lack of significant quantities of both tall forbs and graminoids (&lt;10% cover, total). The most common tall shrubs are <i>Amelanchier alnifolia</i> and <i>Prunus virginiana</i>. This stratum can be open and scattered but usually has at least 10% cover and is often greater than 50%. The low-shrub component, with <i>Symphoricarpos oreophilus</i> or <i>Symphoricarpos rotundifolius</i> and <i>Rosa woodsii</i>, is always prominent (&gt;10% cover). <i>Mahonia repens, Paxistima myrsinites, Ribes</i> spp., or <i>Spiraea betulifolia</i> are often present to abundant. Occasionally <i>Symphoricarpos albus</i> replaces <i>Symphoricarpos oreophilus</i>. The herbaceous layer is dominated by low-growing forb species such as <i>Thalictrum fendleri, Geranium viscosissimum, Osmorhiza</i> spp., and <i>Lupinus argenteus</i> (generally &gt;10% cover). Occasional tall forbs, such as <i>Agastache urticifolia, Eucephalus engelmannii</i>, or <i>Senecio serra</i>, may be present, but they never form a prominent part of the undergrowth (&gt;10% cover). Graminoids can be present with low cover (&lt;10%).  Accession Code: urn:lsid:vegbank.org:commConcept:29478-{7A5955F0-40B9-49C0-8D81-6C3A1599E412} Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 10-Jan-2006 to: ongoing
	status: accepted Community's Parent: Populus tremuloides Rocky Mountain Forest & Woodland Alliance This Community's Level: Association This Community's Children: [none]		Names:   UID: ELEMENT_GLOBAL.2.689492 NatureServe Explorer   Code: CEGL000569   Translated: Quaking Aspen / Saskatoon Serviceberry - Mountain Snowberry / Fendler's Meadowrue Forest   Scientific: Populus tremuloides / Amelanchier alnifolia - Symphoricarpos oreophilus / Thalictrum fendleri Forest (convergence) and Synonyms: (similar) Populus tremuloides / Amelanchier alnifolia - Symphoricarpos oreophilus / Thalictrum fendleri Forest (similar) CEGL000569 (similar) Populus tremuloides / Amelanchier alnifolia - Symphoricarpos oreophilus / Thalictrum fendleri Forest