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Tsuga heterophylla / Mahonia nervosa / Linnaea borealis Forest | Western Ecology Working Group of...
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Name: Tsuga heterophylla / Mahonia nervosa / Linnaea borealis Forest Reference: Western Ecology Working Group of... Description: This association occurs at an average of 1045 m (3431 feet) elevation on northerly aspects with mean slope of 29%. Parent materials are typically basalt, andesite, pumice, ash, granite, or mixed intrusives with deep surface soils. Tree canopy cover is dominated by Pseudotsuga menziesii (36%) and Tsuga heterophylla (20%). At most sites understory tree canopy includes Tsuga heterophylla (39%) Taxus brevifolia (14%), and Abies concolor (16%). Common shrubs are Acer circinatum (39%), Mahonia nervosa (= var. nervosa) (16%), Chimaphila umbellata (3%), and Rubus ursinus (2%). Typical herbs are Linnaea borealis (10%), Trillium ovatum (1%), and Goodyera oblongifolia (1%). This association is distinguished from Tsuga heterophylla / Mahonia nervosa / Achlys triphylla Forest (CEGL000095) by the abundance of Taxus brevifolia.  Accession Code: VB.CC.18400.TSUGAHETEROPHYL Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 26-Nov-1997 to: 17-Nov-2014
	status: accepted Community's Parent: Tsuga heterophylla Giant Forest Alliance This Community's Level: Association This Community's Children: [none]		Names:   Translated: Western Hemlock / Dwarf Oregon-grape / American Twinflower Forest   UID: ELEMENT_GLOBAL.2.683557 NatureServe Explorer   Code: CEGL000097   Scientific: Tsuga heterophylla / Mahonia nervosa / Linnaea borealis Forest (convergence) and Synonyms: (undetermined) Tsuga heterophylla / Mahonia nervosa / Linnaea borealis Forest