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Artemisia tridentata ssp. tridentata / Pascopyrum smithii - (Elymus lanceolatus) Shrubland | Western Ecology Working Group of...
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Name: Artemisia tridentata ssp. tridentata / Pascopyrum smithii - (Elymus lanceolatus) Shrubland Reference: Western Ecology Working Group of... Description: This sagebrush shrubland occurs on valley bottoms, stream terraces and other relatively mesic sites west of the Great Plains. Stands occur over an elevational range of 1800-2400 m (5900-7875 feet). Most stands grow on alluvial terraces in stream alluvium, although a few occur on upland swales. Soils generally are loamy or sandy. Water tables may be within 2 m of the soil surface. The stream channel often is dry and may be incised. The vegetation is characterized by a sparse to moderately dense short-shrub layer (up to about 35% canopy cover and to 1.5 m tall) that is dominated by Artemisia tridentata ssp. tridentata, with an herbaceous layer that usually dominated by Pascopyrum smithii or Elymus lanceolatus. Other shrubs may be present in small amounts, especially Ericameria nauseosa (= Chrysothamnus nauseosus), Chrysothamnus viscidiflorus, or Quercus gambelii. The sparse to dense herbaceous layer is dominated by graminoids and is poor in species richness relative to other sagebrush types. Other species that may be present in substantial amounts are Elymus elymoides (= Sitanion hystrix) in northern Colorado, Poa secunda (= Poa nevadensis) and Muhlenbergia richardsonis, in Nevada, and Leymus cinereus and Poa pratensis in Montana. Forbs contribute much less cover than do grasses. Species that often occur are Symphyotrichum ascendens (= Aster ascendens) and Collinsia parviflora in Nevada, Penstemon caespitosus in north-central Colorado, Achillea millefolium, Erigeron compositus, Packera cana (= Senecio canus), and Taraxacum officinale in southwestern Montana, and Cordylanthus ramosus in southwestern Wyoming. Mosses and lichens may be important ground cover.  Accession Code: VB.CC.20274.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. tridentata, ssp. xericensis) Shrubland Alliance This Community's Level: Association This Community's Children: [none]		Names:   Translated: Basin Big Sagebrush / Western Wheatgrass - (Streamside Wild Rye) Shrubland   UID: ELEMENT_GLOBAL.2.684272 NatureServe Explorer   Code: CEGL001017   Scientific: Artemisia tridentata ssp. tridentata / Pascopyrum smithii - (Elymus lanceolatus) Shrubland (convergence) and Synonyms: (undetermined) Artemisia tridentata ssp. tridentata / Pascopyrum smithii - (Elymus lanceolatus) Shrubland