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Tsuga heterophylla / Athyrium filix-femina Forest | NatureServe Biotics 2019
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Name: Tsuga heterophylla / Athyrium filix-femina Forest
Reference: NatureServe Biotics 2019
Description: This association occurs in northern Idaho, on the west slope of the Bitterroot Mountains, in the Coeur d'Alene National Forest, and western Montana in Glacier National Park. It occurs on stream terraces, toeslopes and lower slope positions, from roughly 915 to 2500 m (3000-8200 feet) elevation. Slopes are less than 25% and aspects are northwestern to eastern. Soils are well-drained, loamy sands to silt loams in texture, with some having a high gravel content. This is a needle-leaved evergreen forest, dominated by <i>Tsuga heterophylla</i>. Other trees occasionally present may include <i>Thuja plicata, Abies grandis, Pinus monticola, Abies lasiocarpa</i>, and <i>Picea engelmannii</i>, but only <i>Tsuga heterophylla</i> is reproducing successfully. Scattered shrubs occur, but none are particularly abundant. Shrub species occasionally present include <i>Taxus brevifolia, Menziesia ferruginea, Acer glabrum</i>, and <i>Rubus parviflorus</i>. The herbaceous layer is abundant and dominated by perennial ferns. <i>Athyrium filix-femina</i> is always present, with cover usually over 10% and occasionally over 50%. <i>Gymnocarpium dryopteris</i> is also common. 
Accession Code: urn:lsid:vegbank.org:commConcept:29400-{CA1E453F-2880-42D2-8E39-1285A1D1DEEF}
Plot-observations of this Community Concept: 1
      Party Perspective according to: NatureServe (organization)
Perspective from: 13-Apr-2004 to: ongoing
      Names:   UID: ELEMENT_GLOBAL.2.683943 NatureServe ExplorerNatureServe Explorer logo
  Code: CEGL000491
  Translated: Western Hemlock / Common Ladyfern Forest
  Scientific: Tsuga heterophylla / Athyrium filix-femina Forest
(convergence) and Synonyms:
(similar) CEGL000491
(similar) Tsuga heterophylla / Athyrium filix-femina Forest
(similar) Tsuga heterophylla / Athyrium filix-femina Forest