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Schoenoplectus acutus - (Schoenoplectus tabernaemontani) Semipermanently Flooded Herbaceous Alliance | Midwestern Ecology Working Group...
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Name: Schoenoplectus acutus - (Schoenoplectus tabernaemontani) Semipermanently Flooded Herbaceous Alliance Reference: Midwestern Ecology Working Group... Description: This alliance is found in the midwestern and western United States and central Canada. Vegetation is characterized by medium to tall graminoids which typically range from 1 to over 2 m. The vegetation is moderately dense to dense. Some stands are heavily dominated by one or two Scirpus species while others have several graminoids common throughout the stand. The most abundant species are typically Schoenoplectus acutus (= Scirpus acutus), Schoenoplectus fluviatilis (= Scirpus fluviatilis), and Schoenoplectus tabernaemontani (= Scirpus tabernaemontani). Species composition and abundance can vary from year to year depending mostly on water level fluctuations. In most years, typical species include Lemna spp., Phragmites australis, Schoenoplectus americanus (= Scirpus americanus) (in alkaline stands), Triglochin maritima (in alkaline stands), Typha latifolia, and Utricularia macrorhiza. Potamogeton spp. often occur in the deeper parts of stands of this alliance and where emergent species are not densely packed. Shrubs, such as Salix spp., are not common but may become established in shallow water areas. During droughts, species more tolerant of low water, such as Polygonum amphibium, may invade and alter the species composition of stands of this alliance. Stands of this alliance are flooded for most or all of the growing season. Stands can have water from 0 (exposed soil) to approximately 1.5 m deep, but usually are less than 1 m. Within a stand, water levels can vary by up to 1 m during the year. The water can be fresh to mildly saline throughout most of this alliance's range; however, in the Nebraska Sandhills, some stands occur in moderately alkaline water. Across the range of this alliance, soils are deep, poorly drained, muck, peat, or mineral.  Accession Code: VB.CC.18111.SCHOENOPLECTUSA 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: Schoenoplectus acutus - (Schoenoplectus tabernaemontani) Semipermanently Flooded Herbaceous Alliance   Translated: Hardstem Bulrush - (Softstem Bulrush) Semipermanently Flooded Herbaceous Alliance   UID: HIGHER_CLASS_UNIT.2.126646 NatureServe Explorer   Code: A.1443