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Rhamnus alnifolia Shrubland | Western Ecology Working Group of...
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Name: Rhamnus alnifolia Shrubland
Reference: Western Ecology Working Group of...
Description: This association is known from the Blue Mountains of northeastern Oregon, scattered locations in moist mountainous regions of Idaho, Montana, and in western Wyoming. Stands of the Rhamnus alnifolia association occur at low to mid elevations (e.g., up to 2074 m, 6800 feet) in seeps, along sloped spring-fed creeks, on alluvial terraces of small streams (orders 1 and 2), and in broad basins or fens. Soils are typically loams and contain coarse rock fragments. Soils often show signs of a seasonally high water table (e.g., mottling), but the association also occurs on semipermanently saturated sites. Nearly complete cover of Rhamnus alnifolia characterizes this association, with few associates having consistently high cover due to the dense canopy. Associated shrubs that may be present include Alnus incana, Lonicera involucrata, Ribes spp., and Symphoricarpos albus. The herbaceous understory is diverse, but most species have low to moderate cover. Common graminoid species include Bromus spp., Calamagrostis canadensis, Cinna latifolia, Elymus glaucus, and Glyceria spp. Tall forbs are characteristically present, including Heracleum maximum, Mertensia spp., Thalictrum occidentale, and Urtica dioica, but no single species has high cover and constancy throughout the association's range. 
Accession Code: VB.CC.23816.RHAMNUSALNIFOLI
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 26-Nov-1997 to: 17-Nov-2014
      Names:   Scientific: Rhamnus alnifolia Shrubland
  Translated: Alderleaf Buckthorn Shrubland
  UID: ELEMENT_GLOBAL.2.686732 NatureServe ExplorerNatureServe Explorer logo
  Code: CEGL001132
(convergence) and Synonyms:
(undetermined) Rhamnus alnifolia Shrubland