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Physocarpus malvaceus - Symphoricarpos albus Shrubland | Western Ecology Working Group of...
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Name: Physocarpus malvaceus - Symphoricarpos albus Shrubland
Reference: Western Ecology Working Group of...
Description: This association is known from canyonlands of the northern Wallowa Mountains, Imnaha River, and Snake River within northeastern Oregon, southeastern Washington, and west-central Idaho. The association occurs on upper slope positions of steep, northeast- to northwest-facing canyon slopes at 1125 to 1375 m (3700-4500 feet) elevation. Deep soils on these relatively moist, shaded sites are formed from basalt colluvium. <i>Physocarpus malvaceus</i> is the dominant shrub species (mean cover exceeds 80%). <i>Symphoricarpos albus</i> is consistently present. Other associated shrub species include <i>Amelanchier alnifolia, Prunus virginiana</i>, and <i>Philadelphus lewisii</i>. Shrubs are so abundant that growth of understory forbs and graminoids is limited. This <i>Physocarpus malvaceus</i> association is distinguished from <i>~Pseudotsuga menziesii / Physocarpus malvaceus</i> Forest (CEGL000447)$$ by the absence of trees. Periodic fire may serve to maintain this deciduous shrubland vegetation by controlling the establishment of trees. 
Accession Code: VB.CC.33220.CEGL001171
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.2.684316 NatureServe ExplorerNatureServe Explorer logo
  Translated: Mallow Ninebark - Common Snowberry Shrubland
  Scientific: Physocarpus malvaceus - Symphoricarpos albus Shrubland
  Code: CEGL001171