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Abies procera / Oxalis oregana Forest | NatureServe Biotics 2019
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Name: Abies procera / Oxalis oregana Forest Reference: NatureServe Biotics 2019 Description: This association is known from the northern Oregon Coast Ranges, and is assumed to be extirpated from the adjacent Willapa Hills in southwestern Washington. It occurs on isolated peaks, found at lower elevations (670 m [2200 feet]) by the ocean, and between 915 and 1220 m (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%. <i>Abies procera</i> dominates the canopy, but <i>Pseudotsuga menziesii, Tsuga heterophylla</i>, and <i>Abies amabilis</i> are occasionally found in the overstory and understory. Some <i>Abies procera</i> and <i>Pseudotsuga menziesii</i> 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 <i>Rubus spectabilis</i> and <i>Ribes lacustre</i> often present at 1% cover. <i>Oxalis oregana</i> dominates the forest floor, with 52% cover, although <i>Polystichum munitum, Osmorhiza berteroi, Claytonia sibirica, Clintonia uniflora</i>, and <i>Coptis laciniata</i> are all often present. No other associations are dominated by <i>Abies procera</i>.  Accession Code: urn:lsid:vegbank.org:commConcept:32326-{31F90D31-E388-4608-8B39-3AEAAF38A31B} Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 21-Oct-2002 to: ongoing
	status: accepted Community's Parent: Abies amabilis - Tsuga heterophylla / Vaccinium membranaceum Cold Forest Alliance This Community's Level: Association This Community's Children: [none]		Names:   UID: ELEMENT_GLOBAL.2.683983 NatureServe Explorer   Code: CEGL003444   Translated: Noble Fir / Redwood Sorrel Forest   Scientific: Abies procera / Oxalis oregana Forest (convergence) and Synonyms: (similar) CEGL003444 (similar) Abies procera / Oxalis oregana Forest (similar) Abies procera / Oxalis oregana Forest