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Artemisia tridentata ssp. wyomingensis / Pascopyrum smithii Shrub Herbaceous Vegetation | Western Ecology Working Group of...
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Name: Artemisia tridentata ssp. wyomingensis / Pascopyrum smithii Shrub Herbaceous Vegetation Reference: Western Ecology Working Group of... Description: This Wyoming big sagebrush type is found throughout the northern Great Plains and adjacent basins, Black Hills, and Rocky Mountains of the United States. Stands occur on gently rolling uplands or upper parts of stream terraces and drainageways. Drier examples may be on more exposed slope positions. Soils are moderately deep clays, clay loam, silt loam and loam. Soil moisture conditions are relatively mesic. Soil pH ranges from 5.8 to 7.8. The vegetation contains an open short-shrub layer, approximately 0.5 m tall, dominated by microphyllous-leaved shrubs, and a dense herbaceous layer dominated by medium-tall graminoids. Shrub cover averages between 15% and 30%. Artemisia tridentata ssp. wyomingensis dominates the shrub layer. The dense herbaceous layer has a canopy cover of over 75%. Pascopyrum smithii is the leading dominant. Important associates include Koeleria macrantha, Poa secunda, and Nassella viridula (= Stipa viridula). In drier or more heavily grazed phases, Bouteloua gracilis, Hesperostipa comata (= Stipa comata), and Carex filifolia may be more common, along with the succulent Opuntia polyacantha. Forbs contribute low cover, often less than 10%, and are typically of low constancy. More constant species (>50%) include Artemisia frigida, Sphaeralcea coccinea, and Vicia americana. Grassy leaf litter covers over 75% of the ground; stones and bare soil comprise the remainder. Nonvascular plants are rare.  Accession Code: VB.CC.22364.ARTEMISIATRIDEN Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 26-Nov-1997 to: 17-Nov-2014
	status: accepted Community's Parent: Artemisia tridentata ssp. wyomingensis Shrub Herbaceous Alliance This Community's Level: Association This Community's Children: [none]		Names:   Translated: Wyoming Big Sagebrush / Western Wheatgrass Shrub Herbaceous Vegetation   UID: ELEMENT_GLOBAL.2.687083 NatureServe Explorer   Code: CEGL001047   Scientific: Artemisia tridentata ssp. wyomingensis / Pascopyrum smithii Shrub Herbaceous Vegetation   Common: Wyoming Sagebrush / Western Wheatgrass Shrubland (convergence) and Synonyms: (undetermined) Artemisia tridentata ssp. wyomingensis / Pascopyrum smithii Shrub Herbaceous Vegetation