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Bouteloua gracilis - Muhlenbergia torreyi - Aristida purpurea Grassland | NatureServe Biotics 2019
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Name: Bouteloua gracilis - Muhlenbergia torreyi - Aristida purpurea Grassland Reference: NatureServe Biotics 2019 Description: This ruderal shortgrass association is described from eastern and central New Mexico, but likely extends into eastern Colorado and throughout much of the southern shortgrass steppe. This association occurs between 1835 and 2020 m (6000-6630 feet) in elevation on gentle slopes of low-lying hills of variable aspect. Stands typically occur on substrates derived from sandstones, though occasionally on limestone or Quaternary alluvium. Ground cover is characterized by scattered bunchgrasses with exposed soil and gravel in the inter-grass spaces. The vegetation is characterized by a short, moderately dense (25-60% cover) grass layer dominated by <i>Bouteloua gracilis</i> with ruderal <i>Aristida purpurea</i> and/or <i>Muhlenbergia torreyi</i> codominant. Tall shrubs are absent or accidental, but ruderal subshrubs or succulents such as <i>Gutierrezia sarothrae</i> and <i>Cylindropuntia imbricata</i> are common but at low cover (usually &lt;5%). Forbs are variable and generally low in cover. The most frequent and abundant forbs are <i>Ratibida tagetes, Heterotheca villosa, Gaura coccinea, Stephanomeria pauciflora, Astragalus</i> spp., and <i>Sphaeralcea coccinea</i>. Trees such as <i>Juniperus monosperma</i> are accidental or absent.  Accession Code: urn:lsid:vegbank.org:commConcept:34149-{84FD0532-4B48-4DC9-A9EF-331128DEEBAD} Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 23-Jul-2009 to: ongoing
	status: accepted Community's Parent: Bouteloua gracilis - Bouteloua hirsuta - Bouteloua curtipendula Shortgrass Prairie Alliance This Community's Level: Association This Community's Children: [none]		Names:   UID: ELEMENT_GLOBAL.2.829158 NatureServe Explorer   Code: CEGL005389   Translated: Blue Grama - Ring Muhly - Purple Three-awn Grassland   Common: Blue Grama - Ring Muhly - Purple Three-awn Shortgrass Prairie   Scientific: Bouteloua gracilis - Muhlenbergia torreyi - Aristida purpurea Grassland (convergence) and Synonyms: (similar) Bouteloua gracilis - Muhlenbergia torreyi - Aristida purpurea Herbaceous Vegetation