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Redfieldia flexuosa - Leymus flavescens - Achnatherum hymenoides Grassland Alliance | NatureServe Biotics 2019
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Name: Redfieldia flexuosa - Leymus flavescens - Achnatherum hymenoides Grassland Alliance
Reference: NatureServe Biotics 2019
Description: This herbaceous alliance occurs on sandy sites in the intermountain western U.S. from the Columbia Basin, Great Basin, Centennial Valley in Montana, Wyoming Basins, Colorado Plateau and the San Luis Valley of southern Colorado. This herbaceous layer is characterized by a sparsely vegetated to open herbaceous layer composed of <i>Redfieldia flexuosa, Leymus flavescens, Achnatherum hymenoides</i>, and <i>Psoralidium lanceolatum</i>, which may dominate solely or in combination. There are several associated species, including graminoids <i>Muhlenbergia pungens, Hesperostipa comata, Schizachyrium scoparium, Calamovilfa gigantea</i>, forbs <i>Heliotropium convolvulaceum, Machaeranthera canescens, Oxytheca dendroidea, Polanisia dodecandra ssp. trachysperma, Polanisia jamesii, Reverchonia arenaria, Sophora stenophylla, Scabrethia scabra</i>, and the annual forb <i>Eriogonum deflexum</i>. Stands occur on active and stable dunes, sand blowouts and sandsheets. Elevations range from 1500-2400 m. All sites have semi-arid climates. Substrates are eolian sands. 
Accession Code: urn:lsid:vegbank.org:commConcept:39221-{41145F2D-0B30-4D3D-8FFE-7A0CB882EAD9}
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 17-Oct-2016 to: ongoing
      Names:   UID: ELEMENT_GLOBAL.2.900062 NatureServe ExplorerNatureServe Explorer logo
  Code: A4011
  Translated: Blowout Grass - Yellow Wildrye - Indian Ricegrass Grassland Alliance
  Common: Blowout Grass - Yellow Wildrye - Indian Ricegrass Grassland
  Scientific: Redfieldia flexuosa - Leymus flavescens - Achnatherum hymenoides Grassland Alliance