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Thuja plicata - Tsuga heterophylla / Lysichiton americanus / Sphagnum spp. Forest | Western Ecology Working Group of...
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Name: Thuja plicata - Tsuga heterophylla / Lysichiton americanus / Sphagnum spp. Forest Reference: Western Ecology Working Group of... Description: This association occurs in poor fens or bogs of wet coastal Washington and British Columbia. Topography can be basins or gentle slopes. Soils are generally saturated and composed of sphagnum, fibrous and heath peat, and woody material. The open, relatively stunted tree canopy is dominated by evergreen conifers Thuja plicata and Tsuga heterophylla. Picea sitchensis is also frequent. The shrub layer, rooted on woody debris, is dominated by evergreen Gaultheria shallon, with frequent Menziesia ferruginea, Frangula purshiana (mostly in Washington), and Vaccinium ovalifolium. The herbaceous layer is characterized by abundant Lysichiton americanus and Blechnum spicant. Sphagnum spp. usually dominate the moss layer and are always present. This association is distinguished by an open tree canopy of Thuja and Tsuga with at least 5% cover of Lysichiton americanus and Sphagnum spp., and the absence or paucity of both Ledum and Myrica. This type has some compositional similarities to Thuja plicata - Tsuga heterophylla / Lysichiton americanus Forest (CEGL002670). Major differences include the abundance of Sphagnum (sometimes present in small amounts in the latter also), the open stunted canopy, and the soils which are typically peat as opposed to muck.  Accession Code: VB.CC.18002.THUJAPLICATATSU Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 17-Oct-2002 to: 17-Nov-2014
	status: accepted Community's Parent: Tsuga heterophylla Saturated Forest Alliance This Community's Level: Association This Community's Children: [none]		Names:   Translated: Western Red-cedar - Western Hemlock / Yellow Skunk-cabbage / Peatmoss species Forest   UID: ELEMENT_GLOBAL.2.683415 NatureServe Explorer   Code: CEGL001787   Scientific: Thuja plicata - Tsuga heterophylla / Lysichiton americanus / Sphagnum spp. Forest (convergence) and Synonyms: (undetermined) Thuja plicata - Tsuga heterophylla / Lysichiton americanus / Sphagnum spp. Forest