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Pseudotsuga menziesii - (Abies grandis, Thuja plicata) / Mahonia nervosa - Gaultheria shallon Forest | NatureServe Biotics 2019
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Name: Pseudotsuga menziesii - (Abies grandis, Thuja plicata) / Mahonia nervosa - Gaultheria shallon Forest Reference: NatureServe Biotics 2019 Description: This matrix forest community occurs on zonal and near-zonal sites within the Coastal Douglas-fir moist maritime biogeoclimatic unit (CDFmm) of the Georgia Basin of British Columbia and adjacent Washington. Known sites occur at elevations from 0 to 150 m in British Columbia and to 390 m in Washington, on level to steep (mostly gentle) middle to upper slopes on all aspects where sandy loamy soils are common. This plant community has a moderately open to closed coniferous overstory typically dominated by <i>Pseudotsuga menziesii</i> with a well-developed shrub layer dominated by <i>Mahonia nervosa</i> and/or <i>Gaultheria shallon</i>, sparse herb layer, and well-developed moss layer dominated by <i>Eurhynchium oreganum</i>. <i>Pseudotsuga menziesii</i> may codominate the overstory with <i>Thuja plicata</i>. <i>Thuja plicata</i> and/or <i>Abies grandis</i> tend to dominate smaller size class trees. The well-developed shrub layer is dominated by high cover of <i>Mahonia nervosa</i> and/or <i>Gaultheria shallon</i>. The sparse herb layer typically includes low cover of <i>Rubus ursinus, Trientalis borealis, Polystichum munitum, Pteridium aquilinum, Linnaea borealis</i>, and <i>Festuca subuliflora</i>. The well-developed moss layer is dominated by high cover of <i>Eurhynchium oreganum</i>. It is distinguished from the similar ~<i>Thuja plicata - Pseudotsuga menziesii - Abies grandis / Mahonia nervosa / Polystichum munitum</i> Forest (CEGL002848)$$ by the low cover of <i>Polystichum munitum</i> and greater dominance of <i>Pseudotsuga menziesii</i>.  Accession Code: urn:lsid:vegbank.org:commConcept:31747-{A10D8502-6985-4035-A67B-4FFB329916B8} Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 26-Sep-2005 to: ongoing
	status: accepted Community's Parent: Tsuga heterophylla - Pseudotsuga menziesii / Cornus unalaschkensis Mesic Forest Alliance This Community's Level: Association This Community's Children: [none]		Names:   UID: ELEMENT_GLOBAL.2.787981 NatureServe Explorer   Code: CEGL002845   Translated: Douglas-fir - (Grand Fir, Western Red-cedar) / Cascade Barberry - Salal Forest   Scientific: Pseudotsuga menziesii - (Abies grandis, Thuja plicata) / Mahonia nervosa - Gaultheria shallon Forest (convergence) and Synonyms: (similar) Pseudotsuga menziesii - (Abies grandis, Thuja plicata) / Mahonia nervosa - Gaultheria shallon Forest