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Tsuga mertensiana - Abies amabilis / Oplopanax horridus Forest | Western Ecology Working Group of...
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Name: Tsuga mertensiana - Abies amabilis / Oplopanax horridus Forest Reference: Western Ecology Working Group of... Description: This association occurs in the northwestern Cascade Range of Washington and probably in the coastal mountains of British Columbia. This is a needle-leaved evergreen conifer forest, or less commonly, woodland. Tsuga mertensiana and Abies amabilis dominate the canopy. Tsuga heterophylla is usually prominent also, and Chamaecyparis nootkatensis occasional. The understory typically has a moderately dense layer of deciduous broad-leaved shrubs about 0.5-2.0 m tall dominated by Vaccinium ovalifolium (most abundant shrub), Oplopanax horridus, and Rubus spectabilis. Menziesia ferruginea is usually present also. A relatively lush, diverse forb-dominated herbaceous layer typically has Rubus pedatus, Streptopus lanceolatus var. curvipes (= Streptopus roseus), Athyrium filix-femina, Clintonia uniflora, Gymnocarpium dryopteris, and Tiarella trifoliata. In Washington, occurs at elevations of 780-1300 m, on lower slopes either adjacent to small streams or on sites with subirrigated soils where the rooting zone is kept very moist to saturated year-round by water moving downslope above an impermeable layer. Snowpacks are moderately deep, averaging 2.5 m. This association is distinguished from similar associations by at least 10% cover of Tsuga mertensiana and 5% cover of Oplopanax horridus, and little to no Caltha leptosepala ssp. howellii, Lysichiton americanus, or Nephrophyllidium crista-galli(= Fauria crista-galli).  Accession Code: VB.CC.19468.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 Saturated Forest Alliance This Community's Level: Association This Community's Children: [none]		Names:   Translated: Mountain Hemlock - Pacific Silver Fir / Devil's-club Forest   UID: ELEMENT_GLOBAL.2.684732 NatureServe Explorer   Code: CEGL000507   Scientific: Tsuga mertensiana - Abies amabilis / Oplopanax horridus Forest (convergence) and Synonyms: (undetermined) Tsuga mertensiana - Abies amabilis / Oplopanax horridus Forest