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Artemisia arbuscula ssp. arbuscula Shrubland Alliance | Western Ecology Working Group of...
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Name: Artemisia arbuscula ssp. arbuscula Shrubland Alliance Reference: Western Ecology Working Group of... Description: This low shrubland alliance is known from southwestern Idaho, but likely occurs throughout much of the Intermountain West. Artemisia arbuscula ssp. arbuscula is the dominant low shrub in shallow, rocky soils. Stands typically occur on poorly drained soils on a variety of landforms; from flats and depressions to slopes and ridges. Soils are usually shallow, rocky clays, often with an impenetrable layer at less than 60 cm depth. Little information is available on vegetation included in this alliance except that a low-shrub layer of Artemisia arbuscula ssp. arbuscula dominates or codominates it. Artemisia tridentata ssp. wyomingensis or Artemisia tridentata ssp. vaseyana codominate some stands in this alliance. Other shrub associates include Artemisia nova, Chrysothamnus spp., Ephedra viridis, Gutierrezia sarothrae, Juniperus occidentalis, Juniperus osteosperma, Tetradymia canescens, and Purshia tridentata. The herbaceous layer is generally sparse. Various perennial graminoids may be present, but with low cover (<20% cover). Important grasses include Festuca idahoensis, Pseudoroegneria spicata, Elymus elymoides, and Poa secunda. Forb cover is likely sparse. Diagnostic of this alliance is the Artemisia arbuscula ssp. arbuscula-dominated low-shrub layer (or codominated with >40% relative shrub cover) that lacks a significant graminoid layer (<20% cover perennial graminoids) or has over 40% total shrub cover.  Accession Code: VB.CC.18953.ARTEMISIAARBUSC Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 15-Apr-2002 to: 01-May-2019
	status: accepted This Community's Level: Alliance This Community's Children: [none]		Names:   Scientific: Artemisia arbuscula ssp. arbuscula Shrubland Alliance   Translated: Dwarf Sagebrush Shrubland Alliance   UID: HIGHER_CLASS_UNIT.2.126251 NatureServe Explorer   Code: A.2547