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Thuja occidentalis - Acer rubrum - Larix laricina Swamp Forest Alliance | NatureServe Biotics 2019
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Name: Thuja occidentalis - Acer rubrum - Larix laricina Swamp Forest Alliance
Reference: NatureServe Biotics 2019
Description: This alliance is found in the upper midwestern and northeastern United States and eastern temperate Canada. The tree layer is dominated by a mix of conifers and deciduous species. Most of the deciduous species are not abundant, but taken together, they make up a substantial amount of the canopy. <i>Thuja occidentalis</i> is a consistently abundant tree. <i>Acer rubrum</i> can be absent to codominant. Other common trees include <i>Betula alleghaniensis, Fraxinus nigra</i>, and <i>Abies balsamea</i>. The shrub layer varies from sparse to moderately well-developed. The herbaceous layer can be diverse with a variable moss layer. Stands of this alliance are found on poorly drained, mostly mineral soils. It is commonly associated with wetlands influenced by calcareous groundwater, in poorly drained depressions with substantial peat accumulation, along streams, or on slopes with emergent groundwater seepage evident as rivulets at the surface. Soils range from organic to mineral. The groundwater is usually moderately to strongly minerotrophic and has circumneutral pH. 
Accession Code: urn:lsid:vegbank.org:commConcept:38934-{CF8BF4A2-018C-447B-8221-06AD5FD46118}
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 18-Dec-2014 to: ongoing
      Names:   UID: ELEMENT_GLOBAL.2.899772 NatureServe ExplorerNatureServe Explorer logo
  Code: A3720
  Translated: Northern White-cedar - Red Maple - Tamarack Swamp Forest Alliance
  Common: Northern White-cedar - Red Maple Swamp Forest
  Scientific: Thuja occidentalis - Acer rubrum - Larix laricina Swamp Forest Alliance