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Betula occidentalis / Mesic Graminoids Wet Shrubland | NatureServe Biotics 2019
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Name: Betula occidentalis / Mesic Graminoids Wet Shrubland Reference: NatureServe Biotics 2019 Description: This shrubland association often occurs as dense bands up to 35 m wide along moderately wide to wide floodplains in mountain valleys of Colorado, Nevada and Utah. Stands also occur in small patches at higher elevations and around seeps and isolated springs on hillslopes away from the valley bottom. These shrublands are characterized by bands of vegetation dominated by <i>Betula occidentalis</i> (40-60% canopy cover) but often including <i>Ribes inerme</i> and <i>Salix bebbiana</i>. This vegetation may extend well way from the channel edge in deep pockets of sandy loam soils. <i>Alnus incana</i> may be codominant. <i>Picea pungens</i> and <i>Juniperus scopulorum</i> may also be present but usually with low cover. Stands with a dense shrub layer may have a limited (&lt;10%) but diverse herbaceous cover. Graminoids typically dominate the herbaceous layer where the most abundant species usually include <i>Carex pellita, Carex deweyana</i>, or <i>Carex nebrascensis</i>. <i>Deschampsia cespitosa</i> and <i>Carex utriculata</i> are often present as well. Forb cover often includes <i>Achillea millefolium, Cardamine cordifolia, Heracleum maximum, Maianthemum stellatum</i>, and <i>Vicia americana</i>. Scouring rushes (<i>Equisetum</i> spp.) may also have significant cover. The introduced grasses <i>Agrostis stolonifera</i> and <i>Poa pratensis</i> may be present in disturbed stands. Diagnostic of this association is the dominance of <i>Betula occidentalis</i> in the shrub layer and the dominance of mesic graminoids in the herbaceous layer.  Accession Code: urn:lsid:vegbank.org:commConcept:31562-{90204512-B3DC-4C63-ACAB-AC228558BEA7} Plot-observations of this Community Concept: 3
	Party Perspective according to: NatureServe (organization) Perspective from: 12-Oct-2005 to: ongoing
	status: accepted Community's Parent: Betula occidentalis Wet Shrubland Alliance This Community's Level: Association This Community's Children: [none]		Names:   UID: ELEMENT_GLOBAL.2.689273 NatureServe Explorer   Code: CEGL002654   Translated: Water Birch / Mesic Graminoids Wet Shrubland   Scientific: Betula occidentalis / Mesic Graminoids Wet Shrubland (convergence) and Synonyms: (similar) Betula occidentalis / Mesic Graminoids Shrubland (similar) CEGL002654 (similar) Betula occidentalis / Mesic Graminoids Shrubland