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Artemisia pygmaea Low Scrub Alliance | NatureServe Biotics 2019
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Name: Artemisia pygmaea Low Scrub Alliance Reference: NatureServe Biotics 2019 Description: This alliance is characterized by a sparse dwarf-shrub layer of <i>Artemisia pygmaea</i>, with other shrubs scattered through the stands. Only one association from central Nevada is presently described for this alliance. In addition to <i>Artemisia pygmaea</i>, that association included <i>Artemisia nova, Atriplex confertifolia, Chrysothamnus viscidiflorus</i>, and <i>Ephedra nevadensis</i> in the shrub layer. According to the authors, none of these associated shrubs is constant or characteristic of these communities. A sparse graminoid layer is usually present, including <i>Achnatherum hymenoides</i> and <i>Elymus elymoides</i>. Forbs include <i>Astragalus</i> spp., <i>Eriogonum caespitosum</i>, and <i>Sphaeralcea coccinea</i>. Adjacent vegetation types are most often dominated by <i>Artemisia nova</i>, which often forms the vegetation matrix surrounding these unique communities. These communities often harbor regionally rare plant species. They occur in relatively dry areas of the sagebrush desert of Nevada and Utah, from 1200-1800 m in elevation. Precipitation averages 15-20 cm annually, with a significant proportion arriving as snow. Growing-season drought is characteristic. Soils are usually shallow and often unique, including Green River shale, heavy clays, or calcareous outcrops or gravels.  Accession Code: urn:lsid:vegbank.org:commConcept:38165-{F72D720F-0350-4415-8ADB-5FA4A925C40F} Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 14-Mar-2014 to: ongoing
	status: accepted Community's Parent: Atriplex corrugata - Atriplex gardneri - Artemisia pedatifida Dwarf-Scrub Group This Community's Level: Alliance This Community's Children: Show/Hide   Artemisia pygmaea / Elymus elymoides - Achnatherum hymenoides Shrubland		Names:   UID: ELEMENT_GLOBAL.2.899073 NatureServe Explorer   Code: A1106   Translated: Pygmy Sagebrush Low Scrub Alliance   Common: Pygmy Sagebrush Low Scrub   Scientific: Artemisia pygmaea Low Scrub Alliance (convergence) and Synonyms: (similar) A.1106 (similar) Artemisia pygmaea Shrubland Alliance