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Eragrostis lehmanniana Ruderal Herbaceous Vegetation | Western Ecology Working Group of...
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Name: Eragrostis lehmanniana Ruderal Herbaceous Vegetation Reference: Western Ecology Working Group of... Description: This desert grassland association occurs in southeastern Arizona on alluvial fans, ridges, hills and valley floors. The elevation range is 960-1100 m (3150-3600 feet). Sites occur on gentle to moderate slopes. Substrates are variable but are often well-drained sandy loam. This semi-natural grassland is characterized by dominance or codominance of <i>Eragrostis lehmanniana</i>, an introduced, perennial forage grass seeded and now naturalized throughout much of southern Arizona. Natural mixed desert grasslands are noted for their high species diversity and range in cover from relatively sparse to dense. This association is also variable in composition and cover and is defined by having 25% or more cover of <i>Eragrostis lehmanniana</i> or over a third of the total perennial graminoid cover for stands with a sparser herbaceous layer. <i>Eragrostis lehmanniana</i> also strongly dominates many stands with few native species remaining. Shrubs such as <i>Prosopis velutina, Calliandra eriophylla, Opuntia versicolor</i>, and <i>Isocoma tenuisecta</i> may be present totaling 10% cover or less. Remnant desert grasses include <i>Aristida ternipes, Bouteloua chondrosioides, Bouteloua curtipendula, Bouteloua eriopoda, Bouteloua rothrockii, Digitaria californica</i>, and <i>Eragrostis intermedia</i>. <i>Gutierrezia microcephala</i> is abundant in some stands. Other common species include <i>Allionia incarnata, Ambrosia confertiflora, Boerhavia erecta, Mollugo verticillata, Opuntia versicolor, Panicum hirticaule, Polygala barbeyana, Proboscidea parviflora</i>, and <i>Talinum aurantiacum</i>.  Accession Code: VB.CC.31793.CEGL005332 Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 17-Nov-2014 to: 01-May-2019
	status: Provisional This Community's Level: association This Community's Children: [none]		Names:   UID: ELEMENT_GLOBAL.2.806343 NatureServe Explorer   Translated: Lehmann's Lovegrass Ruderal Herbaceous Vegetation   Code: CEGL005332   Scientific: Eragrostis lehmanniana Ruderal Herbaceous Vegetation