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Abies grandis / Vaccinium membranaceum - Achlys triphylla Forest | Western Ecology Working Group of...
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Name: Abies grandis / Vaccinium membranaceum - Achlys triphylla Forest
Reference: Western Ecology Working Group of...
Description: Endemic to southeastern Cascade Mountains of Washington, this association is found at higher elevations in the vicinity of the White Salmon and Little White Salmon River basins (south of Mount Adams). It occurs in a narrow environmental range below the <i>Abies amabilis</i> zone (warmer, less snow) that elsewhere in the Cascades supports <i>Tsuga heterophylla</i>- or <i>Thuja plicata</i>-dominated forests. It is often found on north aspects. Two locally described associations, <i>Abies grandis / Vaccinium membranaceum - Clintonia uniflora</i> and <i>Abies grandis / Vaccinium membranaceum - Linnaea borealis</i>, are included in this type. <i>Abies grandis</i> dominates these dense forests that often have <i>Pseudotsuga menziesii, Larix occidentalis</i>, or <i>Abies amabilis</i> in the upper canopy. Trees are rarely over 37 m (120 feet) tall. <i>Abies grandis</i> is by far the most common tree in the subcanopy and seedling layers. A patchy deciduous shrub layer, approximately 1 m tall, occurs with a diverse forb component. <i>Vaccinium membranaceum, Symphoricarpos mollis</i> are common shrubs and <i>Linnaea borealis</i> and <i>Rubus lasiococcus</i> are common subshrubs in the association. Tall shrubs, such as <i>Acer circinatum, Corylus cornuta</i>, and <i>Cornus nuttallii</i>, are absent to patchy. Although diverse, the forb layer is typically sparse and usually composed of <i>Achlys triphylla, Prosartes hookeri (= Disporum hookeri), Clintonia uniflora, Maianthemum racemosum</i>, and <i>Orthilia secunda</i>. Each individual species may be locally abundant but never abundant in most stands. 
Accession Code: VB.CC.34215.CEGL000291
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 17-Nov-2014 to: 01-May-2019
     
  • status: accepted
  • This Community's Level: association
  • This Community's Children: [none]
Names:   UID: ELEMENT_GLOBAL.2.683145 NatureServe ExplorerNatureServe Explorer logo
  Translated: Grand Fir / Thinleaf Huckleberry - Sweet After Death Forest
  Scientific: Abies grandis / Vaccinium membranaceum - Achlys triphylla Forest
  Code: CEGL000291