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Thuja plicata / Vaccinium membranaceum Forest | Western Ecology Working Group of...
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Name: Thuja plicata / Vaccinium membranaceum Forest Reference: Western Ecology Working Group of... Description: This association is restricted to the continentally glaciated portions of Bailey's Okanogan Highlands (M333A) in Washington and adjacent Idaho and British Columbia. It is a mid to upper elevation, large-patch to matrix community and is the highest elevation Thuja plicata type at 800-1580 m (2640-5180 feet). It is usually associated with a volcanic ash layer over glacial till or outwash deposits. Over half of soil samples had a shallow root-restrictive layer. Large hot fires typically preceded initiation of these communities, and repeated underburning occurs in some areas. Pseudotsuga menziesii, Larix occidentalis, and/or Pinus contorta dominate the upper tree canopy, which tends to be less than a closed canopy. The main canopy may or may not have Thuja plicata as a member, although it is always present in the lower canopy. Deciduous shrubs, typically around 1 m tall, characterize the undergrowth. Vaccinium membranaceum (most cover and always present), Rosa gymnocarpa, and Lonicera utahensis are the most common deciduous shrubs. Shorter evergreen shrubs or subshrubs Paxistima myrsinites, Mahonia aquifolium, or Linnaea borealis are usual members of the understory. Forbs are present but always in low cover. Viola orbiculata and Clintonia uniflora are the most frequently encountered. This is a mid-seral community type.  Accession Code: VB.CC.21648.THUJAPLICATAVAC 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: Thuja plicata Forest Alliance This Community's Level: Association This Community's Children: [none]		Names:   Translated: Western Red-cedar / Square-twig Blueberry Forest   UID: ELEMENT_GLOBAL.2.685118 NatureServe Explorer   Code: CEGL000487   Scientific: Thuja plicata / Vaccinium membranaceum Forest (convergence) and Synonyms: (undetermined) Thuja plicata / Vaccinium membranaceum Forest