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Tsuga heterophylla - Abies amabilis - (Pseudotsuga menziesii) / Vaccinium alaskaense Forest | NatureServe Biotics 2019
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Name: Tsuga heterophylla - Abies amabilis - (Pseudotsuga menziesii) / Vaccinium alaskaense Forest
Reference: NatureServe Biotics 2019
Description: This western hemlock - Pacific silver fir forest of British Columbia, Washington and Oregon has a canopy that is usually codominated by <i>Tsuga heterophylla, Abies amabilis</i>, and <i>Pseudotsuga menziesii</i> (latter often absent). <i>Abies amabilis</i> dominates tree regeneration and occupies over 10% total cover. The shrub layer is usually well-developed but is occasionally very sparse. <i>Vaccinium alaskaense</i> dominates the shrub layer and is always present. <i>Mahonia nervosa</i> is sometimes prominent to codominant. The herb layer is usually sparse to occasionally moderate, with <i>Clintonia uniflora</i> and <i>Cornus unalaschkensis</i> the only species present in many stands. <i>Linnaea borealis</i> or <i>Xerophyllum tenax</i> are occasionally prominent to dominant. In Washington, this association occurs at middle elevations in the western Cascades and in the Olympic Mountains on well-drained soils and moderate to somewhat dry sites on a variety of topographic settings. This association is widespread and occurs commonly in the mountains of western Washington and has been impacted by logging. 
Accession Code: urn:lsid:vegbank.org:commConcept:34277-{8036DF59-FFB4-4254-8B9A-5F12A78F1AFF}
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 11-May-2016 to: ongoing
      Names:   UID: ELEMENT_GLOBAL.2.942431 NatureServe ExplorerNatureServe Explorer logo
  Code: CEGL005518
  Translated: Western Hemlock - Pacific Silver Fir - (Douglas-fir) / Alaska Blueberry Forest
  Scientific: Tsuga heterophylla - Abies amabilis - (Pseudotsuga menziesii) / Vaccinium alaskaense Forest