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Salix exigua / Equisetum arvense Wet Shrubland | NatureServe Biotics 2019
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Name: Salix exigua / Equisetum arvense Wet Shrubland Reference: NatureServe Biotics 2019 Description: This shrubland is a riparian tall-shrub vegetation type that grows on sediment bars and channel edges at middle elevations in mountains of the northwestern U.S. In eastern Idaho and western Wyoming stands of this type generally are found at elevations below 2160 m (7100 feet) and are bordered by other riparian shrublands or by <i>Picea engelmannii</i> forests, while stands in eastern Oregon are found between 914 and 1323 m (3000-4340 feet) next to <i>Pinus ponderosa, Pseudotsuga menziesii</i>, or <i>Abies grandis</i> forests. Soils are cobbly in the lower horizons but may contain virtually no coarse fragments in the surface horizon. The shrub layer is dense, 1 to 2 m (3-6.5 feet) tall, and dominated by <i>Salix exigua</i> or <i>Salix melanopsis</i>, and sometimes contains small amounts of other shrubs. The herbaceous undergrowth contains substantial amounts of <i>Equisetum arvense</i> or <i>Calamagrostis canadensis</i>. Stands of this type depend on floods that create new sediment bars for their establishment, but they have been little affected by recent flooding beyond deposition of small amounts of sediment. Stands of this association are distinguished from stands of other <i>Salix exigua</i> or <i>Salix melanopsis</i> associations by the presence of at least 5% canopy cover of <i>Equisetum arvense</i> or at least 25% canopy cover of <i>Calamagrostis canadensis</i> in the undergrowth.  Accession Code: urn:lsid:vegbank.org:commConcept:30110-{C857EA30-D3A3-4D72-881B-7FB525C548F5} Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 27-Sep-2004 to: ongoing
	status: accepted Community's Parent: Salix exigua - Salix irrorata Shrubland Alliance This Community's Level: Association This Community's Children: [none]		Names:   UID: ELEMENT_GLOBAL.2.686541 NatureServe Explorer   Code: CEGL001201   Translated: Narrowleaf Willow / Field Horsetail Wet Shrubland   Scientific: Salix exigua / Equisetum arvense Wet Shrubland (convergence) and Synonyms: (similar) CEGL001201 (similar) Salix exigua / Equisetum arvense Shrubland (similar) Salix exigua / Equisetum arvense Shrubland