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Spiraea douglasii / Sphagnum spp. Shrubland | Western Ecology Working Group of...
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Name: Spiraea douglasii / Sphagnum spp. Shrubland
Reference: Western Ecology Working Group of...
Description: This association occurs on lake-fill mats and kettle-hole depressions in the northern Willamette Valley of Oregon, the Puget Lowlands of Washington, and southwestern British Columbia. The peat is perennially saturated and floating mats may rise and fall with seasonally fluctuating lake levels. The tree layer is sparse or absent and limited to stunted <i>Fraxinus latifolia</i> or <i>Populus tremuloides</i>. The shrub layer is dominated by <i>Spiraea douglasii</i> 0.6-1.2 m (3-4 feet) tall. The herb layer is variable, typically with <i>Carex</i> spp., <i>Nuphar polysepala (= Nuphar lutea ssp. polysepala), Juncus balticus, Menyanthes trifoliata</i>, or <i>Dulichium arundinaceum</i>. The moss layer is dominated by a saturated lawn of <i>Sphagnum</i> with up to 95% cover beneath the shrubs. Well-developed hummocks of <i>Sphagnum</i> may be present, creating small ombrotrophic inclusions in otherwise minerotrophic mire. 
Accession Code: VB.CC.32540.CEGL003416
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.2.685906 NatureServe ExplorerNatureServe Explorer logo
  Translated: Rose Spirea / Peatmoss species Shrubland
  Scientific: Spiraea douglasii / Sphagnum spp. Shrubland
  Code: CEGL003416