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Tsuga mertensiana - Abies amabilis / Elliottia pyroliflorus Woodland | Western Ecology Working Group of...
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Name: Tsuga mertensiana - Abies amabilis / Elliottia pyroliflorus Woodland Reference: Western Ecology Working Group of... Description: This association occurs in very wet climatic areas of the northwestern Cascade Range of Washington and the coastal mountains of British Columbia. In Washington, it occurs at elevations of 900-1400 m, primarily on north-facing slopes, shallow soils, and mid to upper slopes, where the snowpack is very deep. This is a needle-leaved evergreen conifer woodland, usually with relatively short trees (mean height of 17 m after 100 years). Tsuga mertensiana is the most abundant tree, averaging about 40% cover; Abies amabilis is always present in smaller amounts, and Chamaecyparis nootkatensis is usually prominent also. Understory vegetation is dominated by a relatively dense layer of deciduous broad-leaved shrubs 0.8-2 m tall, mostly Vaccinium ovalifolium and Elliottia pyroliflorus, and to a lesser degree Vaccinium membranaceum and Menziesia ferruginea. The dwarf-shrubs Phyllodoce empetriformis and Vaccinium deliciosum are sometimes present and occasionally prominent, mostly at the upper elevational limits of the type. The herbaceous layer is dominated by Rubus pedatus and the fern Blechnum spicant, each averaging about 10% in cover. This association is distinguished from similar associations by an abundance of Elliottia pyroliflorus and a lack of wet site indicators such as Caltha leptosepala, Oplopanax horridus, or Nephrophyllidium crista-galli (= Fauria crista-galli).  Accession Code: VB.CC.26914.TSUGAMERTENSIAN Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 26-Nov-1997 to: 17-Nov-2014
	status: accepted Community's Parent: Tsuga mertensiana - Abies amabilis Woodland Alliance This Community's Level: Association This Community's Children: [none]		Names:   Translated: Mountain Hemlock - Pacific Silver Fir / Copperbush Woodland   UID: ELEMENT_GLOBAL.2.688751 NatureServe Explorer   Scientific: Tsuga mertensiana - Abies amabilis / Elliottia pyroliflorus Woodland   Code: CEGL000503 (convergence) and Synonyms: (undetermined) Tsuga mertensiana - Abies amabilis / Elliottia pyroliflorus Woodland