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Deschampsia caespitosa - Carex douglasii Herbaceous Vegetation | Western Ecology Working Group of...
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Name: Deschampsia caespitosa - Carex douglasii Herbaceous Vegetation
Reference: Western Ecology Working Group of...
Description: This alkaline bottomland association occurs in scattered localities of eastern Oregon. The region is semi-arid, with average annual precipitation varying from 20 to 40 cm in all except the higher elevations in the Blue Mountains, where over 60 cm fall annually. A high proportion of the annual precipitation falls as snow, but winter temperatures are not as extreme as to the east of the Rocky Mountains. It is found in flat, poorly drained floodplains and internally drained basins or historic lake basins (playas). Elevations range from 760 to 1525 m. Soils are alkaline and typically seasonally flooded. This herbaceous association is composed of perennial bunchgrasses and rhizomatous sedges, but little information is available on canopy cover, density or species composition. The perennial bunchgrass <i>Deschampsia caespitosa</i> is probably the dominant grass, and is typically 0.5-1 m tall. <i>Carex</i> species are codominant, the most commonly occurring and indicative species is <i>Carex douglasii</i>, which is rhizomatous and probably forms a matrix of 1- to 3-dm tall culms within the clumps of <i>Deschampsia</i>. The deciduous, succulent-leaved shrub <i>Sarcobatus vermiculatus</i> may occasionally occur in some stands and is typically 1-3 m tall. 
Accession Code: VB.CC.33672.CEGL001602
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 17-Nov-2014 to: 01-May-2019
     
  • status: Provisional
  • This Community's Level: association
  • This Community's Children: [none]
Names:   UID: ELEMENT_GLOBAL.2.686174 NatureServe ExplorerNatureServe Explorer logo
  Common: Tufted Hairgrass - Douglas' Sedge Alkaline Bottomland Grassland
  Translated: Tufted Hairgrass - Douglas' Sedge Herbaceous Vegetation
  Scientific: Deschampsia caespitosa - Carex douglasii Herbaceous Vegetation
  Code: CEGL001602