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Centaurea solstitialis - Isatis tinctoria - Salsola tragus Ruderal Annual Forb Alliance | NatureServe Biotics 2019
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Name: Centaurea solstitialis - Isatis tinctoria - Salsola tragus Ruderal Annual Forb Alliance
Reference: NatureServe Biotics 2019
Description: This ruderal herbaceous alliance occurs in the interior western U.S. Vegetation is strongly dominated (&gt;90% relative canopy cover) by invasive, exotic annual forb species such as <i>Brassica nigra, Centaurea melitensis, Centaurea solstitialis, Crupina vulgaris, Cynoglossum officinale, Hyoscyamus niger, Isatis tinctoria, Salsola tragus</i> or a mixture of other exotic annual forbs. Other exotic annual forbs are often present to dominant in disturbed stands, including <i>Bassia scoparia, Descurainia sophia, Erodium cicutarium, Lepidium perfoliatum, Onopordum acanthium, Sisymbrium altissimum</i>, and <i>Taraxacum officinale</i>. Cover of perennials is low (&lt;5% absolute cover). Stands occur in disturbed dry to mesic basins, alluvial fans, and foothills at elevations up to 2200 m throughout the cool, semi-arid intermountain western U.S. region. It is an early-successional type that may occur in areas disturbed by fire, grazing or mining. 
Accession Code: urn:lsid:vegbank.org:commConcept:38544-{3382A475-D138-4518-9E66-898AE2419250}
Plot-observations of this Community Concept: 2
      Party Perspective according to: NatureServe (organization)
Perspective from: 18-Dec-2014 to: ongoing
      Names:   UID: ELEMENT_GLOBAL.2.899381 NatureServe ExplorerNatureServe Explorer logo
  Code: A3257
  Translated: Yellow Star-thistle - Dyer's Woad - Prickly Russian-thistle Ruderal Annual Forb Alliance
  Common: Ruderal Annual Forb Meadow & Grassland
  Scientific: Centaurea solstitialis - Isatis tinctoria - Salsola tragus Ruderal Annual Forb Alliance
(convergence) and Synonyms:
(similar) Centaurea solstitialis - Isatis tinctoria - Salsola tragus Ruderal Annual Forb Alliance