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Thuja plicata - Tsuga heterophylla / Whipplea modesta Forest | Western Ecology Working Group of...
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Name: Thuja plicata - Tsuga heterophylla / Whipplea modesta Forest Reference: Western Ecology Working Group of... Description: This association is characteristically found on primarily eastern aspects, on the upper to middle third of the slope, and occasionally on the lower third. Parent material is commonly andesite or basalt and occasionally tephra that has been redeposited by wind and water. The environment is mild, evapotranspirational demand is low, summer temperatures are warm, not hot, and moisture stress is low. Soils are rarely frozen. Elevation ranges from 685 to 990 m (2250-3250 feet). <i>Pseudotsuga menziesii</i> is the dominant tree species, usually with about 50% canopy cover. <i>Thuja plicata</i> and <i>Tsuga heterophylla</i> are common in the overstory, but stands of this association may contain neither of these two species. <i>Thuja plicata, Tsuga heterophylla, Pseudotsuga menziesii</i>, and <i>Acer macrophyllum</i> are common in the regeneration layer. <i>Abies concolor, Calocedrus decurrens</i>, and <i>Taxus brevifolia</i> are also common in the understory. <i>Acer circinatum, Whipplea modesta, Gaultheria shallon</i>, and <i>Rosa gymnocarpa</i> are the dominant shrubs. Other common shrubs include <i>Mahonia nervosa (= Berberis nervosa), Rubus ursinus, Symphoricarpos mollis</i>, and <i>Vaccinium virgatum (= Vaccinium parviflorum)</i>. Common herbaceous species include <i>Achlys triphylla, Anemone deltoidea, Prosartes hookeri (= Disporum hookeri), Goodyera oblongifolia, Linnaea borealis</i>, and <i>Trillium ovatum</i>, usually at low cover.  Accession Code: VB.CC.32409.CEGL000486 Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 17-Nov-2014 to: 01-May-2019
	status: accepted This Community's Level: association This Community's Children: [none]		Names:   UID: ELEMENT_GLOBAL.2.687346 NatureServe Explorer   Translated: Western Red-cedar - Western Hemlock / Common Whipplea Forest   Scientific: Thuja plicata - Tsuga heterophylla / Whipplea modesta Forest   Code: CEGL000486