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Populus tremuloides / Urtica dioica Forest | Western Ecology Working Group of...
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Name: Populus tremuloides / Urtica dioica Forest Reference: Western Ecology Working Group of... Description: This forest association is reported from Waterton Lakes National Park in southern Alberta, Canada. Reconnaissance information suggests this type also occurs on fine-textured eolian material at the edge of Glacier National Park and onto the Blackfeet Indian Reservation in Montana. It is present on flat, low-level, fluvial and glacio-fluvial landforms, near 1300 m (4260 feet) in elevation. Soils are well-drained Orthic Black Chernozems that are moderately well-developed, moderately acidic to moderately alkaline soils developed on coarse-textured glacio-fluvial material over Mesozoic soft rock. Soils as exemplified by the Glacier National Park data indicate a very low moisture-storage capacity, but this is manifestly not the case for the deep eolian soils found under this type on reservation lands. Litter and small rock dominate the ground surface. This association is a mesic, cold-deciduous, low-elevation, low-diversity forest. Overall tree cover is 65%, dominated exclusively by <i>Populus tremuloides</i> with heights of 5-10 m. Shrub cover is moderately low, averaging 15%, and is generally dominated by <i>Symphoricarpos albus</i> and <i>Rosa woodsii</i>. Herbaceous cover is very high at 100%. <i>Urtica dioica</i>, a species known to increase with grazing disturbance, dominates the herbaceous layer with 70% cover; other increasers (both native and introduced) having 5-10 % cover include <i>Cirsium arvense, Bromus inermis, Hackelia micrantha</i>, and <i>Thalictrum occidentale</i>. Native species that are present with low cover include <i>Geranium viscosissimum, Calochortus apiculatus, Galium boreale, Maianthemum stellatum, Monarda fistulosa, Osmorhiza occidentalis, Senecio hydrophiloides</i>, and <i>Vicia americana</i>.  Accession Code: VB.CC.31135.CEGL005849 Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 17-Nov-2014 to: 01-May-2019
	status: accepted This Community's Level: association This Community's Children: [none]		Names:   UID: ELEMENT_GLOBAL.2.731502 NatureServe Explorer   Translated: Quaking Aspen / Stinging Nettle Forest   Scientific: Populus tremuloides / Urtica dioica Forest   Code: CEGL005849