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Spiraea douglasii / Sphagnum spp. Fen | NatureServe Biotics 2019
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Name: Spiraea douglasii / Sphagnum spp. Fen
Reference: NatureServe Biotics 2019
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, Juncus arcticus ssp. littoralis, 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: urn:lsid:vegbank.org:commConcept:32298-{017A2EE3-98FF-4FFE-89B9-488AE2A1DBB8}
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 21-Oct-2002 to: ongoing
      Names:   UID: ELEMENT_GLOBAL.2.685906 NatureServe ExplorerNatureServe Explorer logo
  Code: CEGL003416
  Translated: Rose Spirea / Peatmoss species Fen
  Scientific: Spiraea douglasii / Sphagnum spp. Fen
(convergence) and Synonyms:
(similar) CEGL003416
(similar) Spiraea douglasii / Sphagnum spp. Shrubland
(similar) Spiraea douglasii / Sphagnum spp. Shrubland