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Artemisia pedatifida - Atriplex gardneri Shrubland | Western Ecology Working Group of...
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Name: Artemisia pedatifida - Atriplex gardneri Shrubland Reference: Western Ecology Working Group of... Description: This dwarf-shrub association is restricted to arid climatic regimes and poorly drained, fine-textured, alkaline substrates on alluvial fans and terraces, and less frequently on moderate slopes of outwash plains in the Big Horn Basin and Pryor mountains of Montana and in Wyoming. Elevation ranges from 1250-1525 m. Characteristic parent materials are somewhat saline, clay to silt-loam-textured alluvium that is derived from shales and claystone interbedded with lesser amounts of sandstone. This association typically has a moderately dense dwarf-shrub canopy (42% mean cover that is codominated by <i>Artemisia pedatifida</i> and <i>Atriplex gardneri</i>, sometimes with a sparse cover of <i>Artemisia tridentata</i> shrubs present. The herbaceous layer is relatively sparse (<25% cover) and is dominated by perennial graminoids with scattered forbs. Grasses with high consistency include <i>Poa secunda (= Poa juncifolia), Pseudoroegneria spicata</i>, and <i>Pascopyrum smithii</i>. Frequent forbs include <i>Allium textile, Musineon divaricatum, Phlox hoodii, Platyschkuhria integrifolia</i>, and occasionally denser cover of <i>Vicia americana</i> and the cactus <i>Opuntia polyacantha</i>. There are two other associations with similar dwarf-shrub canopies and habitats, but they have diagnostic graminoid layers of moderate cover of <i>Pascopyrum smithii</i> or <i>Elymus elymoides</i>.  Accession Code: VB.CC.34231.CEGL001525 Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 17-Nov-2014 to: 01-May-2019
	status: accepted This Community's Level: association This Community's Children: [none]		Names:   UID: ELEMENT_GLOBAL.2.687131 NatureServe Explorer   Translated: Birdfoot Sagebrush - Gardner's Saltbush Shrubland   Scientific: Artemisia pedatifida - Atriplex gardneri Shrubland   Code: CEGL001525