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Pseudotsuga menziesii - Tsuga heterophylla / Rhododendron macrophyllum - Vaccinium ovatum Forest | NatureServe Biotics 2019
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Name: Pseudotsuga menziesii - Tsuga heterophylla / Rhododendron macrophyllum - Vaccinium ovatum Forest
Reference: NatureServe Biotics 2019
Description: This association occurs below 460 m (1500 feet) elevation in west-central portions of the Puget Lowland of Washington, including the Kitsap Peninsula, Whidbey Island, and the northeastern Olympic Peninsula (Mason, Kitsap, Island, Jefferson, Clallam counties). This is an evergreen needle-leaved forest dominated by <i>Pseudotsuga menziesii</i> and <i>Tsuga heterophylla</i>, the former usually taller and more abundant, the latter usually dominating tree regeneration. <i>Thuja plicata</i> is usually present and sometimes codominant, and <i>Pinus monticola</i> is present in about half the plots. The understory is dominated by the evergreen broad-leaved shrubs <i>Rhododendron macrophyllum</i> (2-4 m tall), <i>Vaccinium ovatum</i>, and <i>Gaultheria shallon</i>, and may be sparse or dense depending on tree density. Other frequent species are <i>Pteridium aquilinum, Mahonia nervosa</i>, and <i>Vaccinium parvifolium</i>. Herbaceous species are typically found in very small amounts. This association typically occurs on moderately dry, very nutrient-poor sites including soil parent materials of gravelly glacial till or outwash, or basalt bedrock. This association is distinguished from similar ones by &gt;10% cover of <i>Tsuga heterophylla</i> or <i>Thuja plicata</i>, &gt;5% cover of <i>Rhododendron macrophyllum</i>, and the presence of <i>Vaccinium ovatum</i>, combined with &lt;3% cover of <i>Polystichum munitum</i>. 
Accession Code: urn:lsid:vegbank.org:commConcept:31523-{14FDDF3D-F0A5-473A-8487-DEB40DBB459B}
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 26-Nov-1997 to: ongoing
      Names:   UID: ELEMENT_GLOBAL.2.690034 NatureServe ExplorerNatureServe Explorer logo
  Code: CEGL002615
  Translated: Douglas-fir - Western Hemlock / Pacific Rhododendron - California Huckleberry Forest
  Scientific: Pseudotsuga menziesii - Tsuga heterophylla / Rhododendron macrophyllum - Vaccinium ovatum Forest
(convergence) and Synonyms:
(similar) CEGL002615
(similar) Pseudotsuga menziesii - Tsuga heterophylla / Rhododendron macrophyllum - Vaccinium ovatum - Gaultheria shallon Forest
(similar) Pseudotsuga menziesii - Tsuga heterophylla / Rhododendron macrophyllum - Vaccinium ovatum - Gaultheria shallon Forest