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Acer negundo / Equisetum arvense Forest | Western Ecology Working Group of...
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Name: Acer negundo / Equisetum arvense Forest Reference: Western Ecology Working Group of... Description: This plant association occurs in the Overthrust Mountains of northeastern Utah, in northwestern Colorado and possibly in Idaho and Wyoming. Stands generally occur on the banks of low-gradient streams that experience periodic flooding and scouring that remove non-rhizomatous species. The association occurs in narrow valleys below 2000 m in elevation. Stream gradients are low, terraces slope gently, the water table is high through at least part of the growing season, and soils are generally sandy and derived from alluvium. <i>Acer negundo</i> dominates the open overstory with a dense understory of <i>Equisetum arvense</i>. Canopy cover is at least 20%. Shrubs occur in patches and may include <i>Salix exigua, Salix monticola, Tamarix ramosissima, Rhus trilobata</i>, and <i>Sambucus caerulea (= Sambucus nigra ssp. caerulea)</i>. Herbaceous species are mostly crowded out by the <i>Equisetum</i>; there may be occasional stems of <i>Maianthemum stellatum (= Smilacina stellata), Mentha arvensis, Clematis ligusticifolia, Elymus glaucus</i>, and the introduced grasses <i>Agrostis stolonifera</i> and <i>Poa pratensis</i>.  Accession Code: VB.CC.34549.CEGL000626 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.2.687613 NatureServe Explorer   Translated: Box-elder / Field Horsetail Forest   Scientific: Acer negundo / Equisetum arvense Forest   Code: CEGL000626