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Abies grandis / Coptis occidentalis Forest | Western Ecology Working Group of...
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Name: Abies grandis / Coptis occidentalis Forest
Reference: Western Ecology Working Group of...
Description: This plant association is known from stands located between the South Fork of the Clearwater and Salmon rivers, within the Idaho Batholith ecoregional section. The mountainous region possesses a Pacific maritime-influenced climatic regime. Winters are mild and moist; summers are dry. The association occurs on steep, north-facing slopes in upper-slope positions at 5200-5400 feet elevation. Soils are generally shallow, but may have a significant component of volcanic ash, especially in the upper layers. Pinus contorta, Pinus ponderosa, or Larix occidentalis often dominate early- and mid-seral stands. Pseudotsuga menziesii is often dominant in the forest overstory in late-seral stands. A low-shrub layer is well-developed and dominated by Vaccinium membranaceum (= Vaccinium globulare), with minor amounts of Rubus parviflorus, Lonicera utahensis and Chimaphila umbellata. The herbaceous layer is dominated by perennial forbs, with Coptis occidentalis being the most abundant. Several other species are indicative of the cool, moist conditions beneath the overstory: Galium triflorum, Viola orbiculata, Mitella stauropetala and Thalictrum occidentale. 
Accession Code: VB.CC.18492.ABIESGRANDISCOP
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 26-Nov-1997 to: 17-Nov-2014
      Names:   Translated: Grand Fir / Idaho Goldthread Forest
  UID: ELEMENT_GLOBAL.2.683583 NatureServe ExplorerNatureServe Explorer logo
  Code: CEGL000273
  Scientific: Abies grandis / Coptis occidentalis Forest
  Common: Grand Fir / Western Goldthread
(convergence) and Synonyms:
(undetermined) Abies grandis / Coptis occidentalis Forest