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Tsuga heterophylla - Thuja plicata - Callitropsis nootkatensis Forest Alliance | NatureServe Biotics 2019
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Name: Tsuga heterophylla - Thuja plicata - Callitropsis nootkatensis Forest Alliance
Reference: NatureServe Biotics 2019
Description: This alliance consists of tall, mesic mixed forest of <i>Tsuga heterophylla, Thuja plicata</i>, and <i>Callitropsis nootkatensis</i>, usually on poorly drained soils in cool and cold microsites. These forests occur in the Pacific Northwest, mostly west of the crest of the Cascade Range from southeastern Oregon to British Columbia, Canada, within the maritime-influenced region where much of the annual precipitation occurs as rain. Where snow does occur, it can generally be melted by rain during warm winter storms. Stands occur from sea level in coastal areas. In all settings, it occurs where environmental conditions are moderated by the marine influence, with moderate drought and frost. Stands generally occur on all slopes and aspects, but grow best on sites with high soil moisture, such as toeslopes and bottomlands. These forests generally occur at moist, non-flooded or upland sites that are not saturated year-long. 
Accession Code: urn:lsid:vegbank.org:commConcept:38825-{753DF760-27CD-4965-9AFA-2E59544BA923}
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 26-Sep-2014 to: ongoing
      Names:   UID: ELEMENT_GLOBAL.2.899663 NatureServe ExplorerNatureServe Explorer logo
  Code: A3605
  Translated: Western Hemlock - Western Red-cedar - Alaska-cedar Forest Alliance
  Common: Western Hemlock - Western Red-cedar - Alaska-cedar Forest
  Scientific: Tsuga heterophylla - Thuja plicata - Callitropsis nootkatensis Forest Alliance