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Agropyron cristatum - Bromus tectorum Ruderal Grassland | NatureServe Biotics 2019
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Name: Agropyron cristatum - Bromus tectorum Ruderal Grassland Reference: NatureServe Biotics 2019 Description: This herbaceous plant community is characterized by an abundance of introduced grass species. The vegetation is dominated by <i>Agropyron cristatum</i>, a perennial bunchgrass, <i>Bromus tectorum</i>, an annual grass, or a combination of both species. <i>Bromus tectorum</i> may occasionally be replaced by another introduced annual <i>Bromus</i> species. This association often occurs on or near sites that have been disturbed. Total vegetation cover ranges from 10 to 70%, generally with less than half from native species. Native species persist in some stands; however, cover and diversity are typically low, and component native species can be quite variable depending on the plant community that was present prior to the conversion to introduced grasses. Native shrubs may occur sporadically with low densities. <i>Chrysothamnus viscidiflorus</i> is the most constant native shrub in this association while <i>Poa secunda</i> is the most frequently occurring and abundant native grass. Several native perennial and annual forb species may also be sparse and variable across stands of this type. Non-native forb species are common, but again, species composition is variable. This association can occur across a wide range of environmental conditions in semi-arid ecosystems and is not tightly constrained by slope, aspect, soil texture, or soil depth.  Accession Code: urn:lsid:vegbank.org:commConcept:34230-{38E8091C-E53B-4A15-88FB-08A86C4C4DE0} Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 04-Apr-2017 to: ongoing
	status: accepted Community's Parent: Agropyron cristatum - Bromus inermis - Poa pratensis Ruderal Grassland Alliance This Community's Level: Association This Community's Children: [none]		Names:   UID: ELEMENT_GLOBAL.2.947906 NatureServe Explorer   Code: CEGL005471   Translated: Crested Wheatgrass - Cheatgrass Ruderal Grassland   Scientific: Agropyron cristatum - Bromus tectorum Ruderal Grassland