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Carex nebrascensis Seasonally Flooded Herbaceous Alliance | Western Ecology Working Group of...
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Name: Carex nebrascensis Seasonally Flooded Herbaceous Alliance Reference: Western Ecology Working Group of... Description: Vegetation types within this seasonally flooded, temperate or subpolar grassland alliance occur on saturated soils of flat floodplains bordering ponds or pools adjacent to stream channels. Stands also occur on flat marshy areas surrounding springs or wet meadows. Elevations range from sea level in California to 2400 m in Colorado. The alluvial soils are heavy clays and silty clay loams with high organic matter content. Soils are alkaline in some sites. Anoxic conditions often occur within 20 cm of the surface either in the form of a gleyed layer or abundant mottling. Soils often remain saturated throughout the summer, but water tables occasionally drop below 1 m of the soil surface by the end of the growing season. This alliance is dominated by 30-98% cover of Carex nebrascensis. Carex nebrascensis typically occurs on sites where water flows over the surface but does not pond. Other graminoids include Eleocharis palustris, Carex praegracilis, Catabrosa aquatica, Calamagrostis stricta, Triglochin maritima, and Schoenoplectus pungens (= Scirpus pungens). Forb cover is generally low. Adjacent riparian vegetation includes Populus angustifolia and Populus balsamifera ssp. trichocarpa (= Populus trichocarpa) forests, Salix exigua, Salix lucida, and Salix boothii shrublands, and Carex praegracilis, Carex utriculata, and Schoenoplectus tabernaemontani? (= Scirpus lacustris) meadows. Pinus edulis - Juniperus spp. and Quercus gambelii woodlands, Sarcobatus vermiculatus and Artemisia tridentata shrublands, and Bouteloua gracilis shortgrass prairies occur on adjacent hillslopes.  Accession Code: VB.CC.19305.CAREXNEBRASCENS Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 26-Nov-1997 to: 01-May-2019
	status: accepted This Community's Level: Alliance This Community's Children: [none]		Names:   Scientific: Carex nebrascensis Seasonally Flooded Herbaceous Alliance   Translated: Nebraska Sedge Seasonally Flooded Herbaceous Alliance   UID: HIGHER_CLASS_UNIT.2.125517 NatureServe Explorer   Code: A.1417