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Abies amabilis / Lysichiton americanus Forest | Western Ecology Working Group of...
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Name: Abies amabilis / Lysichiton americanus Forest Reference: Western Ecology Working Group of... Description: This association occurs in the Olympic Mountains and northwestern Cascade Range in Washington and extends north into the coastal mountains of British Columbia. This is a needle-leaved evergreen conifer forest dominated by <i>Tsuga heterophylla, Abies amabilis</i>, and <i>Thuja plicata</i>. <i>Picea sitchensis</i> can be present in small amounts. The understory has a moderately dense to open deciduous broad-leaved shrub layer about 0.7-2.5 m tall, with <i>Vaccinium ovalifolium, Oplopanax horridus</i>, and <i>Rubus spectabilis</i> being the major species. <i>Menziesia ferruginea</i> is frequent in small amounts, and the evergreen shrub <i>Gaultheria shallon</i> is important in the Olympic Mountains. The herbaceous layer is well-developed and typically dominated by <i>Lysichiton americanus</i>. Many other forbs and ferns may occur, especially <i>Clintonia uniflora, Blechnum spicant, Rubus pedatus, Streptopus lanceolatus var. curvipes (= Streptopus roseus), Maianthemum dilatatum, Athyrium filix-femina</i>, and <i>Cornus unalaschkensis</i>. Sites are found primarily at 250-900 m elevation in Washington, at 650-1350 m in southern British Columbia and from near sea level to 700 m in central British Columbia. These are moist, cool climatic zones where snowpack is moderate. Soils are saturated and typically organic. This association is distinguished from similar associations by at least 5% cover of <i>Lysichiton americanus</i> and 10% cover of <i>Abies amabilis</i>, along with little to no <i>Tsuga mertensiana</i> (no more than 10% cover).  Accession Code: VB.CC.33337.CEGL000223 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.2.685964 NatureServe Explorer   Translated: Pacific Silver Fir / Yellow Skunk-cabbage Forest   Scientific: Abies amabilis / Lysichiton americanus Forest   Code: CEGL000223