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Pseudotsuga menziesii - Tsuga heterophylla / Gaultheria shallon - Holodiscus discolor Forest | NatureServe Biotics 2019
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Name: Pseudotsuga menziesii - Tsuga heterophylla / Gaultheria shallon - Holodiscus discolor Forest
Reference: NatureServe Biotics 2019
Description: This Douglas-fir - western hemlock forest of Washington and Oregon has a canopy dominated by <i>Pseudotsuga menziesii</i> or a mixture of that species and <i>Tsuga heterophylla</i>. <i>Thuja plicata</i> is often present and sometimes prominent to codominant. <i>Tsuga heterophylla</i> dominates tree regeneration and typically occupies over 10% total cover. The well-developed shrub layer is always dominated by <i>Gaultheria shallon</i>. <i>Holodiscus discolor</i> is always present and usually has over 2% cover. <i>Mahonia nervosa</i> is usually prominent. <i>Rosa gymnocarpa</i> and <i>Symphoricarpos hesperius</i> are usually present. The herb layer is usually sparse. Typical species include <i>Linnaea borealis, Chimaphila umbellata, Achlys californica</i> and/or <i>Achlys triphylla</i>, and <i>Campanula scouleri</i>. This association occurs on the northern and eastern Olympic Peninsula and possibly in the western Cascades. It is most common in the Puget Lowland between the Cascades and Olympic Mountains. Sites are at low to occasionally moderate elevations on shallow or rocky well-drained soils, mostly on southerly or westerly aspects. 
Accession Code: urn:lsid:vegbank.org:commConcept:34296-{8B6FC694-76F6-42C9-994D-C8DDC177E1CE}
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 10-May-2016 to: ongoing
      Names:   UID: ELEMENT_GLOBAL.2.942449 NatureServe ExplorerNatureServe Explorer logo
  Code: CEGL005537
  Translated: Douglas-fir - Western Hemlock / Salal - Oceanspray Forest
  Scientific: Pseudotsuga menziesii - Tsuga heterophylla / Gaultheria shallon - Holodiscus discolor Forest