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Pseudotsuga menziesii - Tsuga heterophylla / Vaccinium ovatum / Polystichum munitum Forest | NatureServe Biotics 2019
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Name: Pseudotsuga menziesii - Tsuga heterophylla / Vaccinium ovatum / Polystichum munitum Forest Reference: NatureServe Biotics 2019 Description: This association is only found in the Coast Ranges of Oregon and occurs most often on steep, south- or west-facing slopes and ridges. Soil depth averages 122 cm (48 inches) with 91 cm (36 inches) of effective rooting depth. <i>Pseudotsuga menziesii</i> dominates the canopy. <i>Tsuga heterophylla</i> and <i>Thuja plicata</i> may occur in the canopy and regeneration layers. Stands of this association do not necessarily contain <i>Tsuga heterophylla</i>. In addition, <i>Alnus rubra</i> and <i>Acer macrophyllum</i> are sometimes present. The shrub layer is dense, usually occupying about 75% of the forest floor. <i>Vaccinium ovatum</i> is always present with cover averages of 20%. Other common shrubs include <i>Gaultheria shallon, Vaccinium parvifolium, Acer circinatum, Mahonia nervosa</i>, and small amounts of <i>Rubus spectabilis</i>. <i>Polystichum munitum</i> dominates the herb layer and <i>Galium triflorum, Trillium ovatum, Blechnum spicant, Oxalis oregana</i> and <i>Claytonia sibirica</i> are often present at low cover.  Accession Code: urn:lsid:vegbank.org:commConcept:29030-{E00F8F70-308F-43F2-8DFD-A2F79594F0D7} Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 26-Nov-1997 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.2.685835 NatureServe Explorer   Code: CEGL000121   Translated: Douglas-fir - Western Hemlock / California Huckleberry / Western Swordfern Forest   Scientific: Pseudotsuga menziesii - Tsuga heterophylla / Vaccinium ovatum / Polystichum munitum Forest (convergence) and Synonyms: (similar) CEGL000121 (similar) Tsuga heterophylla / Vaccinium ovatum Forest (similar) Tsuga heterophylla / Vaccinium ovatum Forest