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Abies grandis Rocky Mountain Riparian Forest Alliance | NatureServe Biotics 2019
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Name: Abies grandis Rocky Mountain Riparian Forest Alliance
Reference: NatureServe Biotics 2019
Description: This is an alliance of riparian woodlands dominated by <i>Abies grandis</i>, usually with other conifers. <i>Abies lasiocarpa, Larix occidentalis, Pinus monticola</i>, and <i>Pseudotsuga menziesii</i> may be present to codominant. <i>Betula papyrifera</i> or <i>Populus balsamifera ssp. trichocarpa</i> sometimes forms a scattered subcanopy. There is usually a rich and well-developed shrub layer. Common shrubs include <i>Acer glabrum, Linnaea borealis, Rosa gymnocarpa, Rubus parviflorus</i>, and <i>Symphoricarpos albus</i>. The herbaceous layer is characterized by a diverse assemblage of moist-site forbs and ferns, including <i>Aralia nudicaulis, Athyrium filix-femina, Galium triflorum, Goodyera oblongifolia, Maianthemum stellatum, Orthilia secunda, Osmorhiza berteroi, Senecio triangularis</i>, and <i>Tiarella trifoliata</i>. This alliance occurs in the Rocky Mountains of western Montana, Idaho and eastern Washington and eastern Oregon, possibly extending into British Columbia. It occupies sites on benches, toeslopes or valley bottoms along mountain streams. Elevations where the alliance occurs range from 790-1410 m. Soils are typically very cobbly silt loams or sandy loam. Water tables are generally within 1 m of the soil surface in the spring, but the soils are well-drained. 
Accession Code: urn:lsid:vegbank.org:commConcept:38976-{6C4A02E4-A464-4793-83C5-3516A07EBE32}
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 26-Sep-2014 to: ongoing
      Names:   UID: ELEMENT_GLOBAL.2.899814 NatureServe ExplorerNatureServe Explorer logo
  Code: A3762
  Translated: Grand Fir Rocky Mountain Riparian Forest Alliance
  Common: Rocky Mountain Grand Fir Riparian Forest
  Scientific: Abies grandis Rocky Mountain Riparian Forest Alliance