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Artemisia tridentata ssp. vaseyana / Achnatherum lettermanii Shrubland | NatureServe Biotics 2019
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Name: Artemisia tridentata ssp. vaseyana / Achnatherum lettermanii Shrubland Reference: NatureServe Biotics 2019 Description: This shrubland occurs in the upper elevations of the sagebrush zone in plateau areas of western Colorado. Stands are located on gently to moderately sloping hills, ridgetops and benches. Elevations range from 2268 to 2609 m, and aspect is not a factor. Soils are deep, well-developed and often derived from eolian loess, although the underlying substrate may be sandstone, limestone or shale. Soil texture is silt loam or fine sandy loam. Litter covers most of the unvegetated ground surface. The vegetation of this association is characterized by a moderately closed shrub canopy dominated by <i>Artemisia tridentata ssp. vaseyana</i> with a well-developed and diverse herbaceous understory dominated by <i>Achnatherum lettermanii</i>. Total shrub cover generally ranges between 20 and 50%, and the shrub layer often also includes <i>Symphoricarpos oreophilus</i> and <i>Chrysothamnus viscidiflorus</i>. The herbaceous layer is dominated by graminoids and usually contains a number of species, including <i>Poa fendleriana, Poa secunda, Achnatherum pinetorum, Elymus lanceolatus</i>, and <i>Carex rossii</i> or <i>Carex geyeri</i>. Forbs vary among sites, but <i>Eriogonum umbellatum</i> is often present.  Accession Code: urn:lsid:vegbank.org:commConcept:31713-{AFCF9C65-5EF8-448C-8ACA-20F9D5745CBC} Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 12-Nov-2008 to: ongoing
	status: accepted Community's Parent: Artemisia tridentata ssp. spiciformis - Artemisia tridentata ssp. vaseyana Steppe & Shrubland Alliance This Community's Level: Association This Community's Children: [none]		Names:   UID: ELEMENT_GLOBAL.2.785239 NatureServe Explorer   Code: CEGL002811   Translated: Mountain Big Sagebrush / Letterman's Needlegrass Shrubland   Scientific: Artemisia tridentata ssp. vaseyana / Achnatherum lettermanii Shrubland (convergence) and Synonyms: (similar) Artemisia tridentata ssp. vaseyana / Achnatherum lettermanii Shrubland