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Purshia tridentata / Hesperostipa comata Shrub Herbaceous Vegetation | Western Ecology Working Group of...
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Name: Purshia tridentata / Hesperostipa comata Shrub Herbaceous Vegetation
Reference: Western Ecology Working Group of...
Description: This plant association is known from the Intermountain West, from western Idaho, eastern Washington, Oregon, and southern Utah. The association occurs on gently sloped sand to well-drained silty clay loams located from 152 to 2649 m (500-8691 feet) elevation. Dispersed <i>Purshia tridentata</i> forms an open shrub canopy (with an average 20% canopy cover) over an herbaceous layer dominated by <i>Hesperostipa comata (= Stipa comata)</i> (averaging &gt;50% cover). <i>Ericameria nauseosa (= Chrysothamnus nauseosus)</i> and <i>Chrysothamnus viscidiflorus</i> are occasionally present and increase in cover with disturbance. <i>Poa secunda</i> is usually also present in the understory and occurs with 20-50% cover. Additional bunchgrasses, <i>Poa secunda</i> and <i>Poa fendleriana</i>, also may occur in the graminoid layer, with 20-50% cover. Other abundant perennial grasses may include <i>Achnatherum hymenoides (= Oryzopsis hymenoides), Koeleria macrantha</i>, and <i>Elymus lanceolatus</i>. The perennial forb layer may include <i>Lithophragma glabrum, Leptodactylon pungens, Chenopodium atrovirens, Chenopodium leptophyllum</i>, and <i>Potentilla crinita</i>. A cryptogamic layer is well-developed in the most undisturbed stands. 
Accession Code: VB.CC.32743.CEGL001498
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 17-Nov-2014 to: 01-May-2019
     
  • status: accepted
  • This Community's Level: association
  • This Community's Children: [none]
Names:   UID: ELEMENT_GLOBAL.2.687416 NatureServe ExplorerNatureServe Explorer logo
  Translated: Antelope Bitterbrush / Needle-and-Thread Shrub Herbaceous Vegetation
  Scientific: Purshia tridentata / Hesperostipa comata Shrub Herbaceous Vegetation
  Code: CEGL001498