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Leymus salinus ssp. salmonis Sparsely Vegetated Alliance | Western Ecology Working Group of...
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Name: Leymus salinus ssp. salmonis Sparsely Vegetated Alliance
Reference: Western Ecology Working Group of...
Description: This alliance is found in the semi-arid rainshadow-affected areas of central and southern Idaho. Stands occur on steep, south-facing canyon slopes composed of volcanic tuffs at low elevations, from roughly 1580-1890 m. This substrate is typically unstable, with constant downslope movement of soil surface layers, and a high shrink-swell ratio. Chronic soil disturbance is therefore a major factor in the species composition of the alliance, which includes several endemics of the Challis Volcanics substrate. These grasslands are characterized by a sparse herbaceous species layer that is dominated by Leymus salinus ssp. salmonis, a perennial grass species commonly considered a bunchgrass due to its cespitose form (but which typically has rhizomes), and the perennial forbs Enceliopsis nudicaulis or Lupinus argenteus. The grass variety is one of the Challis endemics, while Enceliopsis nudicaulis is disjunct from its principle range in the Great Basin. Several other species of the Challis endemic flora apparently occur in this alliance, but a more specific list is not available, and no other information is available on species composition. 
Accession Code: VB.CC.19763.LEYMUSSALINUSSS
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 26-Nov-1997 to: 01-May-2019
     
  • status: accepted
  • This Community's Level: Alliance
  • This Community's Children: [none]
Names:   Scientific: Leymus salinus ssp. salmonis Sparsely Vegetated Alliance
  Translated: Salmon Lyme Grass Sparsely Vegetated Alliance
  UID: HIGHER_CLASS_UNIT.2.124901 NatureServe ExplorerNatureServe Explorer logo
  Code: A.1258