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Tsuga heterophylla - Thuja plicata / Vaccinium ovalifolium Forest Alliance | NatureServe Biotics 2019
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Name: Tsuga heterophylla - Thuja plicata / Vaccinium ovalifolium Forest Alliance Reference: NatureServe Biotics 2019 Description: This alliance covers forests dominated by <i>Tsuga heterophylla</i> and <i>Thuja plicata</i> on well-drained and nutrient-poor sites. Understory species are indicators of nutrient-poor soils. These forests occur in the maritime-influenced regions of the Pacific Northwest, from the central coast of British Columbia to the Kenai Peninsula in Alaska. Throughout the range of this alliance, much of the annual precipitation occurs as rain. Where snow does occur, it can generally be melted by rain during warm winter storms. In all settings, this type occurs where environmental conditions are moderated by the marine influence, with moderate drought and frost. Stands of the alliance generally occur on all slopes and aspects, except for wet bottomland sites. It occurs on a wide variety of soil types across its range, but growth of <i>Tsuga heterophylla</i> is decreased on heavy soils, or soils with poor drainage. The geographic and environmental range of this type is wide, and associated vegetation is correspondingly diverse.  Accession Code: urn:lsid:vegbank.org:commConcept:38831-{1F9B5C9D-4445-41E9-BD75-64992389B211} Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 26-Sep-2014 to: ongoing
	status: accepted Community's Parent: Tsuga heterophylla - Picea sitchensis North-Central Pacific Rainforest Group This Community's Level: Alliance This Community's Children: Show/Hide   Tsuga heterophylla - Thuja plicata - (Abies amabilis) / Cornus canadensis Forest   Tsuga heterophylla - Thuja plicata / Vaccinium (alaskaense, ovalifolium) Forest   Tsuga heterophylla - Thuja plicata / Vaccinium ovalifolium - Tiarella trifoliata Forest		Names:   UID: ELEMENT_GLOBAL.2.899669 NatureServe Explorer   Code: A3611   Translated: Western Hemlock - Western Red-cedar / Oval-leaf Blueberry Forest Alliance   Common: Western Hemlock - Western Red-cedar / Oval-leaf Blueberry Forest   Scientific: Tsuga heterophylla - Thuja plicata / Vaccinium ovalifolium Forest Alliance