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Tsuga heterophylla - Abies amabilis / Oxalis oregana - Blechnum spicant Forest | NatureServe Biotics 2019
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Name: Tsuga heterophylla - Abies amabilis / Oxalis oregana - Blechnum spicant Forest Reference: NatureServe Biotics 2019 Description: This western hemlock - Pacific silver fir forest of Washington and Oregon has a canopy dominated by <i>Tsuga heterophylla</i> or codominated by that species and <i>Abies amabilis</i>. <i>Abies amabilis</i> dominates or codominates tree regeneration and occupies over 10% total cover. <i>Pseudotsuga menziesii</i> is occasionally present to prominent. The shrub layer varies from sparse to moderately dense. When it is more developed (only occasionally), it is dominated by <i>Gaultheria shallon</i> or <i>Vaccinium alaskaense</i>. <i>Vaccinium parvifolium</i> and <i>Rubus spectabilis</i> are present or occasionally prominent. The usually well-developed herb layer is dominated or codominated by <i>Oxalis oregana</i>. <i>Polystichum munitum</i> is usually present and occasionally codominant. <i>Blechnum spicant</i> is almost always present to occasionally prominent. <i>Maianthemum dilatatum</i> or <i>Tiarella trifoliata</i> is frequently present. This association occurs extensively on the western Olympic Peninsula at low to moderate elevations. Sites occupied have relatively deep, well-drained, moist soils, and occur on a variety of topography. This association has been impacted by logging.  Accession Code: urn:lsid:vegbank.org:commConcept:34314-{AEC5EAEB-3ACD-41DA-81B1-D0577A410D7D} 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: Abies amabilis - Tsuga heterophylla / Achlys triphylla Forest Alliance This Community's Level: Association This Community's Children: [none]		Names:   UID: ELEMENT_GLOBAL.2.942460 NatureServe Explorer   Code: CEGL005564   Translated: Western Hemlock - Pacific Silver Fir / Redwood Sorrel - Deer Fern Forest   Scientific: Tsuga heterophylla - Abies amabilis / Oxalis oregana - Blechnum spicant Forest