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Northern Rocky Mountain Lowland-Foothill Riparian Forest Group | NatureServe Biotics 2019
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Name: Northern Rocky Mountain Lowland-Foothill Riparian Forest Group
Reference: NatureServe Biotics 2019
Description: Vegetation within this group is characterized by an open to moderately dense tree layer that is dominated by <i>Populus balsamifera ssp. trichocarpa</i> and <i>Populus balsamifera ssp. balsamifera</i>. Tree associates include <i>Populus deltoides, Populus angustifolia, Pinus ponderosa</i>, and <i>Picea</i> spp. A shrub layer is usually present and may be dominated by <i>Alnus incana, Betula papyrifera, Cornus sericea, Crataegus douglasii, Prunus virginiana, Ribes americanum, Salix exigua</i>, and <i>Symphoricarpos albus</i>. The herbaceous layer is usually relatively sparse and is dominated by either forbs or graminoids. Common species include <i>Actaea rubra, Cicuta douglasii, Equisetum sylvaticum, Mentha arvensis</i>, and <i>Symphyotrichum spathulatum</i>. This riparian forest group occurs on alluvial terraces along major streams and rivers throughout the northwestern United States. It can occur on alluvial terraces of major streams and rivers, margins of lakes, meadows, deltas, river mouths, and terraces. Stands can occupy broad floodplains or form narrow stringers adjacent to streams with a much steeper slope. Soils typically overlay river gravel and/or cobbles and are coarse-textured. Water tables may drop below 1 m of the soil surface in summer, but can remain moist due to capillary action. 
Accession Code: urn:lsid:vegbank.org:commConcept:40366-{8765AF4E-4462-4A84-A374-2E28FC02C4B5}
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 11-May-2015 to: ongoing
      Names:   UID: ELEMENT_GLOBAL.2.932908 NatureServe ExplorerNatureServe Explorer logo
  Code: G796
  Scientific: Northern Rocky Mountain Lowland-Foothill Riparian Forest Group