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Populus balsamifera ssp. trichocarpa - Alnus rubra / Rubus spectabilis Forest | Western Ecology Working Group of...
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Name: Populus balsamifera ssp. trichocarpa - Alnus rubra / Rubus spectabilis Forest
Reference: Western Ecology Working Group of...
Description: This association occurs on well-developed floodplains of lowland rivers in western Oregon, western Washington, and coastal British Columbia. It is flooded periodically, but typically not every year, by overbank floods, upon which its long-term persistence in the landscape is probably dependent. Soils are alluvium that are well-drained. The relatively closed deciduous tree canopy is dominated in the uppermost layer by <i>Populus balsamifera ssp. trichocarpa</i> up to about 50 m tall. A subcanopy layer of <i>Alnus rubra</i> is present and variable in percent cover. Scattered conifers are sometimes present, especially in lower layers (e.g., <i>Abies grandis, Thuja plicata</i>). The understory is dominated by the deciduous shrub <i>Rubus spectabilis</i>, which can be quite dense. Several other shrubs may be present in lesser amounts. The herb layer is variable in quantity and composition. Some typical species include <i>Tolmiea menziesii, Stachys chamissonis var. cooleyae, Athyrium filix-femina, Circaea alpina, Claytonia sibirica, Urtica dioica</i>, and <i>Polystichum munitum</i>. The dominance of <i>Populus balsamifera ssp. trichocarpa</i> and <i>Rubus spectabilis</i>, combined with a greater abundance of <i>Alnus rubra</i> than <i>Acer macrophyllum</i>, is probably diagnostic. 
Accession Code: VB.CC.32950.CEGL003407
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.2.684232 NatureServe ExplorerNatureServe Explorer logo
  Translated: Black Cottonwood - Red Alder / Salmonberry Forest
  Scientific: Populus balsamifera ssp. trichocarpa - Alnus rubra / Rubus spectabilis Forest
  Code: CEGL003407