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Pseudotsuga menziesii - Tsuga heterophylla / Gaultheria shallon / Polystichum munitum Forest | NatureServe Biotics 2019
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Name: Pseudotsuga menziesii - Tsuga heterophylla / Gaultheria shallon / Polystichum munitum Forest Reference: NatureServe Biotics 2019 Description: This Douglas-fir forest of British Columbia, Washington and Oregon has a canopy dominated by <i>Pseudotsuga menziesii</i> or a mixture with <i>Tsuga heterophylla</i>. <i>Thuja plicata</i> is often present and sometimes prominent to codominant. <i>Tsuga heterophylla</i> typically dominates tree regeneration and always has over 10% total cover. The moderate to dense shrub layer is dominated by <i>Gaultheria shallon</i>. <i>Acer circinatum, Vaccinium parvifolium</i>, and <i>Mahonia nervosa</i> are usually present and often prominent to codominant. The variably dense herb layer is dominated by <i>Polystichum munitum</i>, which always occupies over 3% cover. <i>Blechnum spicant</i> is usually absent. Dense second-growth forest stands may have sparse understories with <i>Gaultheria shallon</i> and <i>Polystichum munitum</i> as the most abundant species. In Washington, this association occurs on the western slopes of the Cascades and on the eastern Olympic Peninsula. It is absent from the outer coastal strip and infrequent to rare on the western side of the Olympic Mountains. Sites occupied are low to moderate in elevation and with moderately moist (mesic) soils.  Accession Code: urn:lsid:vegbank.org:commConcept:34295-{0B65DC00-47D9-4500-B1EF-F5D6A812A449} Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 11-May-2016 to: ongoing
	status: accepted Community's Parent: Tsuga heterophylla - Pseudotsuga menziesii / Rubus spectabilis Mesic Forest Alliance This Community's Level: Association This Community's Children: [none]		Names:   UID: ELEMENT_GLOBAL.2.942421 NatureServe Explorer   Code: CEGL005536   Translated: Douglas-fir - Western Hemlock / Salal / Western Swordfern Forest   Scientific: Pseudotsuga menziesii - Tsuga heterophylla / Gaultheria shallon / Polystichum munitum Forest