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Bouteloua rothrockii Grassland | NatureServe Biotics 2019
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Name: Bouteloua rothrockii Grassland Reference: NatureServe Biotics 2019 Description: This mixed desert grassland association occurs on alluvial fans, ridges, and valley floors in southern Arizona. Elevation ranges from 1030-1105 m (3388-3625 feet). Sites occur on gentle to moderate slopes. Substrates are variable but have been described as well-drained sandy loam. Rock cover is generally low (&lt;10%). The moderate to dense (&gt;35% cover) herbaceous layer is typically strongly dominated by the perennial grass <i>Bouteloua rothrockii</i> with abundant cover (&gt;10%). Diverse, mixed native perennial grasses generally codominate and often include species such as <i>Hilaria belangeri, Bouteloua eriopoda, Bouteloua curtipendula</i>, and <i>Eragrostis intermedia</i>. <i>Gutierrezia microcephala</i> or <i>Gutierrezia sarothrae</i> cover is significant in some stands. Annual grasses are often abundant, but there is good cover of perennial grasses. Scattered shrubs <i>Prosopis velutina</i> and <i>Isocoma tenuisecta</i> may be present with low cover. Other common species include <i>Ambrosia confertiflora, Aristida ternipes, Bouteloua aristidoides, Bouteloua barbata, Chloris virgata, Eriochloa acuminata, Kallstroemia grandiflora, Portulaca suffrutescens</i>, and <i>Solanum elaeagnifolium</i>. The exotic perennial grass <i>Eragrostis lehmanniana</i> is often present but with less than 25% cover and less than a third of the total cover of perennial grasses.  Accession Code: urn:lsid:vegbank.org:commConcept:34093-{E9F9D574-AE3A-4A4C-AD14-2CB5B6F78B66} Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 21-Aug-2007 to: ongoing
	status: accepted Community's Parent: Dasylirion spp. / Bouteloua curtipendula - Muhlenbergia setifolia Foothill Desert Grassland Alliance This Community's Level: Association This Community's Children: [none]		Names:   UID: ELEMENT_GLOBAL.2.806325 NatureServe Explorer   Code: CEGL005330   Translated: Rothrock's Grama Grassland   Scientific: Bouteloua rothrockii Grassland (convergence) and Synonyms: (similar) Bouteloua rothrockii Herbaceous Vegetation