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Rhus trilobata / Schizachyrium scoparium Shrub Grassland | NatureServe Biotics 2019
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Name: Rhus trilobata / Schizachyrium scoparium Shrub Grassland
Reference: NatureServe Biotics 2019
Description: This shrubland is a minor type described only for eastern Montana. It occurs as small patches on gently to steeply sloping breaklands, mostly on slope shoulders but capable of extending to footslopes. Exposures are generally the warmest is a local mosaic. Substrates include calcareous sandstones and shales; all soils are shallow and coarse-textured. Surface coverage varies between high cover of soil/gravel and swards of <i>Selaginella densa</i> (on overgrazed land). Adjacent community types are often of <i>Artemisia tridentata</i> or <i>Hesperostipa comata - Bouteloua gracilis</i> on uplands. Well-represented <i>Rhus trilobata</i> is diagnostic for the type. Other shrubs include <i>Artemisia tridentata, Gutierrezia sarothrae</i>, and <i>Yucca glauca</i>. <i>Schizachyrium scoparium</i> and usually <i>Pseudoroegneria spicata</i> are well-represented, but due to site severity (and grazing), they do no exhibit high cover values. <i>Hesperostipa comata</i> and <i>Muhlenbergia cuspidata</i> have 100% constancy and <i>Hesperostipa comata</i> tends to have relatively high cover on accessible sites with grazing pressure; rhizomes of <i>Pascopyrum smithii</i> ramify throughout the stands but with few tillers. <i>Phlox hoodii</i> and <i>Liatris punctata</i> are also present. 
Accession Code: urn:lsid:vegbank.org:commConcept:30415-{B33520BD-9932-4B19-A051-163FF0EEAD93}
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 06-Jul-2018 to: ongoing
      Names:   UID: ELEMENT_GLOBAL.2.685859 NatureServe ExplorerNatureServe Explorer logo
  Code: CEGL001506
  Translated: Skunkbush Sumac / Little Bluestem Shrub Grassland
  Common: Skunkbush Sumac / Little Bluestem Shrub Prairie
  Scientific: Rhus trilobata / Schizachyrium scoparium Shrub Grassland
(convergence) and Synonyms:
(similar) CEGL001506
(similar) Rhus trilobata / Schizachyrium scoparium Shrub Herbaceous Vegetation
(similar) Rhus trilobata / Schizachyrium scoparium Shrub Herbaceous Vegetation