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Sisymbrium altissimum - Bromus tectorum Ruderal Grassland | NatureServe Biotics 2019
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Name: Sisymbrium altissimum - Bromus tectorum Ruderal Grassland
Reference: NatureServe Biotics 2019
Description: This herbaceous plant community is characterized by an abundance of introduced species. The vegetation in this association is dominated by <i>Sisymbrium altissimum</i>, an annual forb, <i>Bromus tectorum</i>, an annual grass, or a combination of both 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 species. Native shrubs may occur sporadically with low densities. <i>Poa secunda</i> is the most frequently occurring and abundant native grass. Several native forb species may also be sparse and variable across stands of this vegetation type. This association can occur across a wide range of environmental conditions in semi-arid ecosystems but is likely to be found in low-lying areas that have fine soil-textures and experience occasional seasonal flooding. 
Accession Code: urn:lsid:vegbank.org:commConcept:34364-{9BCB8220-6150-4A99-9EDA-41903F29484F}
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 04-Apr-2017 to: ongoing
      Names:   UID: ELEMENT_GLOBAL.2.948035 NatureServe ExplorerNatureServe Explorer logo
  Code: CEGL005614
  Translated: Tall Tumblemustard - Cheatgrass Ruderal Grassland
  Scientific: Sisymbrium altissimum - Bromus tectorum Ruderal Grassland