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Thuja plicata / Carex disperma Forest | Western Ecology Working Group of...
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Name: Thuja plicata / Carex disperma Forest Reference: Western Ecology Working Group of... Description: This forest association is tentative and presently known from the west side of Glacier National Park, Montana. It was found on very wet sites, growing on a flat basin floor over alluvial substrates. The site is very poorly drained; surface ponding is evident throughout the growing season. The ground surface is hummocky, the hummocks about 2-3 dm above the water surface. Soils are peat. Elevation of the one known occurrence was 980 m (3210 feet). This is a swampy, forested association, with near equal dominance of <i>Thuja plicata, Picea engelmannii</i>, and <i>Tsuga heterophylla</i>. Other trees present are <i>Pinus monticola</i> and <i>Betula papyrifera</i>. Subcanopy trees are <i>Thuja plicata</i> and <i>Tsuga heterophylla</i>. The tall-shrub layer is abundant with <i>Alnus incana, Menziesia ferruginea</i>, and <i>Cornus sericea</i>. Other shrubs present are <i>Rhamnus alnifolia, Rosa gymnocarpa</i>, and <i>Vaccinium membranaceum</i>. <i>Thuja plicata, Picea engelmannii</i>, and <i>Tsuga heterophylla</i> saplings also occupy the shrub layer with 2-10% cover. The herbaceous layer is lush and dominated by <i>Carex disperma</i> with 43% cover. <i>Streptopus amplexifolius, Cicuta douglasii, Petasites frigidus var. sagittatus (= Petasites sagittatus)</i>, and <i>Pteridium aquilinum</i> were among the hygrophilous forbs. Several other herbaceous species are present, all indicators of moist to continually wet conditions. These include <i>Glyceria</i> sp., <i>Menyanthes trifoliata</i>, and <i>Athyrium filix-femina</i>.  Accession Code: VB.CC.32152.CEGL005931 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.2.732586 NatureServe Explorer   Translated: Western Red-cedar / Softleaf Sedge Forest   Scientific: Thuja plicata / Carex disperma Forest   Code: CEGL005931