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Abies concolor / Mahonia nervosa Forest | Western Ecology Working Group of...
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Name: Abies concolor / Mahonia nervosa Forest
Reference: Western Ecology Working Group of...
Description: This association is common on relatively dry sites with moderate temperatures in the Klamath-Siskiyou region of Oregon and possibly northwestern California. Stands are found at elevations of 915-1680 m (3000-5500 feet) on all aspects and slopes. Parent material is highly variable with texture varying between loam and sand. Pseudotsuga menziesii and Abies concolor dominate both the overstory canopy with 50% and 29% cover and the understory with 6% and 25% cover, respectively. Average cover of common shrubs include Mahonia nervosa (= var. nervosa) (10%), Symphoricarpos albus (4%), and Rosa gymnocarpa (2%). Common herbs are Goodyera oblongifolia, Anemone deltoidea, and Trientalis borealis ssp. latifolia (= Trientalis latifolia) with respective cover values of 1%, 2%, and 2%. This association can be distinguished from the similar Abies concolor / Mahonia nervosa - Gaultheria shallon Forest (CEGL000013) by the lack of Gaultheria shallon, and from the Abies amabilis - Abies concolor / Mahonia nervosa Forest (CEGL000215) by the lack of additional codominant tree species. 
Accession Code: VB.CC.25700.ABIESCONCOLORMA
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 26-Nov-1997 to: 17-Nov-2014
      Names:   Translated: White Fir / Dwarf Oregon-grape Forest
  UID: ELEMENT_GLOBAL.2.689467 NatureServe ExplorerNatureServe Explorer logo
  Code: CEGL000012
  Scientific: Abies concolor / Mahonia nervosa Forest
(convergence) and Synonyms:
(undetermined) Abies concolor / Mahonia nervosa Forest