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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 Fraxinus latifolia or Populus tremuloides. The shrub layer is dominated by Spiraea douglasii 0.6-1.2 m (3-4 feet) tall. The herb layer is variable, typically with various species of Carex, Nuphar lutea ssp. polysepala, Juncus balticus, Menyanthes trifoliata, or Dulichium arundinaceum. The moss layer is dominated by a saturated lawn of Sphagnum with up to 95% cover beneath the shrubs. Well-developed hummocks of Sphagnum may be present, creating small ombrotrophic inclusions in otherwise minerotrophic mire.  Accession Code: VB.CC.20944.SPIRAEADOUGLASI Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 01-Oct-2002 to: 17-Nov-2014
	status: accepted Community's Parent: Spiraea douglasii Seasonally Flooded Shrubland Alliance This Community's Level: Association This Community's Children: [none]		Names:   Translated: Douglas' Meadowsweet / Peatmoss species Shrubland   UID: ELEMENT_GLOBAL.2.685906 NatureServe Explorer   Code: CEGL003416   Scientific: Spiraea douglasii / Sphagnum spp. Shrubland (convergence) and Synonyms: (undetermined) Spiraea douglasii / Sphagnum spp. Shrubland