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Tsuga heterophylla / Menziesia ferruginea Forest | Western Ecology Working Group of...
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Name: Tsuga heterophylla / Menziesia ferruginea Forest Reference: Western Ecology Working Group of... Description: This regionally endemic plant association is described as a unit of potential natural vegetation from stands located in the Selkirk Mountains of Washington and Idaho, within the eastern-most portion of the Okanogan Highlands ecoregional section. The association occurs between 4500-5200 feet elevation on cool, moist sites on gentle, south-facing slopes and ridgelines. It is the highest elevation Tsuga heterophylla association; frost and high snowpacks are common. Soils are silt loams to loams; in the Okanogans derived from volcanic ash over mixed colluvium or glacial till. The structure of stands of this evergreen, needle-leaved forest can vary greatly, depending on stand age. Mature stands will generally have an open appearance, with 75-95% canopy cover and large Tsuga heterophylla dominating. Younger, seral stands are codominated by dense canopies of Abies lasiocarpa, Picea engelmannii and Tsuga heterophylla. The understory is very species-poor, consisting of a deciduous shrub layer with cover over 50%. Characteristic shrubs include Menziesia ferruginea, Rhododendron albiflorum and Vaccinium membranaceum. Herbs are very sparse, with only Goodyera oblongifolia showing any constancy.  Accession Code: VB.CC.25302.TSUGAHETEROPHYL 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 heterophylla Forest Alliance This Community's Level: Association This Community's Children: [none]		Names:   Translated: Western Hemlock / Fool's-huckleberry Forest   UID: ELEMENT_GLOBAL.2.688429 NatureServe Explorer   Code: CEGL000496   Scientific: Tsuga heterophylla / Menziesia ferruginea Forest   Common: Western Hemlock / Fool's-huckleberry Forest (convergence) and Synonyms: (undetermined) Tsuga heterophylla / Menziesia ferruginea Forest