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Abies amabilis - Tsuga mertensiana / Streptopus lanceolatus var. curvipes Forest | NatureServe Biotics 2019
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Name: Abies amabilis - Tsuga mertensiana / Streptopus lanceolatus var. curvipes Forest
Reference: NatureServe Biotics 2019
Description: This Pacific silver fir - mountain hemlock forest of British Columbia and Washington has a tree canopy that is usually dominated by <i>Abies amabilis</i>, and <i>Tsuga mertensiana</i> is always at least prominent to codominant. <i>Callitropsis nootkatensis, Abies lasiocarpa, Abies procera</i>, and <i>Pseudotsuga menziesii</i> may be prominent. The shrub layer varies from absent to well-developed. <i>Vaccinium alaskaense</i> or <i>Vaccinium membranaceum</i> can be dominant; however, the plots sampled all had sparse shrubs. An herb layer is always present and the characteristic species are <i>Rubus pedatus, Streptopus lanceolatus var. curvipes</i>, and <i>Tiarella trifoliata var. unifoliata</i>. One of the latter two species is always at least prominent in the understory and diagnostic. <i>Tiarella trifoliata</i> is the most common herb with <i>Valeriana sitchensis, Rubus lasiococcus</i>, and <i>Veratrum viride</i> frequent. In the Olympic Mountains and western Cascade Range, this association occurs in upper montane forest zones. Sites are generally moist but can be slightly dry. Many natural-origin stands occur on protected lands; however, some non-protected stands are subject to logging and development. 
Accession Code: urn:lsid:vegbank.org:commConcept:34278-{3A4E8111-4036-4A71-A8E1-4DD8E795D7A9}
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 10-May-2016 to: ongoing
      Names:   UID: ELEMENT_GLOBAL.2.942432 NatureServe ExplorerNatureServe Explorer logo
  Code: CEGL005519
  Translated: Pacific Silver Fir - Mountain Hemlock / Rosy Twisted-stalk Forest
  Scientific: Abies amabilis - Tsuga mertensiana / Streptopus lanceolatus var. curvipes Forest