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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. <i>Tsuga mertensiana</i> and <i>Abies amabilis</i> dominate the canopy. <i>Tsuga heterophylla</i> is usually prominent also, and <i>Chamaecyparis nootkatensis</i> occasional. The understory typically has a moderately dense layer of deciduous broad-leaved shrubs about 0.5-2.0 m tall dominated by <i>Vaccinium ovalifolium</i> (most abundant shrub), <i>Oplopanax horridus</i>, and <i>Rubus spectabilis</i>. <i>Menziesia ferruginea</i> is usually present also. A relatively lush, diverse forb-dominated herbaceous layer typically has <i>Rubus pedatus, Streptopus lanceolatus var. curvipes (= Streptopus roseus), Athyrium filix-femina, Clintonia uniflora, Gymnocarpium dryopteris</i>, and <i>Tiarella trifoliata</i>. 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 <i>Tsuga mertensiana</i> and 5% cover of <i>Oplopanax horridus</i>, and little to no <i>Caltha leptosepala ssp. howellii, Lysichiton americanus</i>, or <i>Nephrophyllidium crista-galli(= Fauria crista-galli)</i>.  Accession Code: VB.CC.32485.CEGL000507 Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 17-Nov-2014 to: 01-May-2019
	status: accepted This Community's Level: association This Community's Children: [none]		Names:   UID: ELEMENT_GLOBAL.2.684732 NatureServe Explorer   Translated: Mountain Hemlock - Pacific Silver Fir / Devil's-club Forest   Scientific: Tsuga mertensiana - Abies amabilis / Oplopanax horridus Forest   Code: CEGL000507