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Abies procera / Oxalis oregana Forest | Western Ecology Working Group of...
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Name: Abies procera / Oxalis oregana Forest
Reference: Western Ecology Working Group of...
Description: This association is known from the northern Oregon Coast Range, and is assumed to be extirpated from the adjacent Willapa Hills in southwestern Washington. It occurs on isolated peaks, found at lower elevations (2200 feet) by the ocean, and between 3000-4000 feet further inland. Soils are deep, moderately stony and moist but well-drained, generally colluvium. It occurs on ridges and upper slopes generally, with a few occurrences from mid slopes. Canopy closure of mature trees averages 82%. Abies procera dominates the canopy, but Pseudotsuga menziesii, Tsuga heterophylla, and Abies amabilis are occasionally found in the overstory and understory. Some Abies procera and Pseudotsuga menziesii trees are very large, easily reaching giant conifer status, but generally the stands are shorter. Sampled stands ranged from 80 to 211 years old. Shrubs have limited cover, with Rubus spectabilis and Ribes lacustre often present at 1% cover. Oxalis oregana dominates the forest floor, with 52% cover, although Polystichum munitum, Osmorhiza berteroi (= Osmorhiza chilensis), Claytonia sibirica (= Montia siberica), Clintonia uniflora, and Coptis laciniata are all often present. No other associations are dominated by Abies procera. 
Accession Code: VB.CC.18842.ABIESPROCERAOXA
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 21-Oct-2002 to: 17-Nov-2014
      Names:   Translated: Noble Fir / Redwood Sorrel Forest
  UID: ELEMENT_GLOBAL.2.683983 NatureServe ExplorerNatureServe Explorer logo
  Code: CEGL003444
  Scientific: Abies procera / Oxalis oregana Forest
(convergence) and Synonyms:
(undetermined) Abies procera / Oxalis oregana Forest