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Thuja plicata / Gaultheria shallon Forest | Western Ecology Working Group of...
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Name: Thuja plicata / Gaultheria shallon Forest
Reference: Western Ecology Working Group of...
Description: This association occurs primarily on north-facing slopes of the San Juan Islands, and on easterly slopes of the Olympics. Elevations are less than 215 m. In these sheltered sites, winds are slight, temperatures are cooler, and summer soil moisture is higher. This is an evergreen needle-leaved tall forest dominated by <i>Thuja plicata, Abies grandis</i>, and/or <i>Pseudotsuga menziesii</i>. <i>Abies grandis</i> is present in 83% of stands, and <i>Thuja plicata</i> in 61% of stands. When <i>Tsuga heterophylla</i> is present, it has less than 5% cover. The broad-leaved deciduous tree <i>Salix scouleriana</i> is often present in the lower canopy with low cover, along with the needle-leaved evergreen <i>Taxus brevifolia</i>. Tree regeneration is dominated by <i>Thuja plicata</i> or <i>Abies grandis</i>. The dense shade of the canopy results in a patchy and sometimes open understory typically lacking an herbaceous layer. The low broad-leaved evergreen shrub <i>Gaultheria shallon</i> dominates the understory, and the taller <i>Holodiscus discolor</i> may be codominant in some stands. Other shrubs may be present, such as the low evergreen <i>Mahonia nervosa</i>. 
Accession Code: VB.CC.32351.CEGL000475
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 17-Nov-2014 to: 01-May-2019
     
  • status: accepted
  • This Community's Level: association
  • This Community's Children: [none]
Names:   UID: ELEMENT_GLOBAL.2.687058 NatureServe ExplorerNatureServe Explorer logo
  Translated: Western Red-cedar / Salal Forest
  Scientific: Thuja plicata / Gaultheria shallon Forest
  Code: CEGL000475