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Acorus calamus Tidal Herbaceous Alliance | Eastern Ecology Working Group of...
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Name: Acorus calamus Tidal Herbaceous Alliance Reference: Eastern Ecology Working Group of... Description: This alliance includes associations of freshwater tidal marsh dominated by Acorus calamus that occur in fresh to oligohaline reaches of tidal rivers along the Atlantic coast. This association is best developed in higher, irregularly flooded elevations within freshwater tidal marshes but can occur in areas with a wide tidal range. Substrate is generally fine-particled, but varies from silts and silty mucks to peats and sands. The setting within the tidal marsh tends to be poorly drained; tidal flooding is ponded and of longer duration than other areas. Acorus calamus is dominant, generally comprising at least 50% cover, over extensive patches within the interior of high marshes. Associated species are variable and can include Schoenoplectus fluviatilis, Peltandra virginica, Sagittaria latifolia, Polygonum punctatum, and Impatiens capensis. Species that can occasionally occur include Pontederia cordata, Zizania aquatica, Leersia oryzoides, Typha latifolia, Polygonum arifolium, Bidens coronata, Hibiscus moscheutos, and other Schoenoplectus spp. Murdannia keisak has been noted in the southern portion of the range. Acorus calamus is conspicuously dominant in spring and early summer. Later in the season, culms tend to lodge and form mats and be overtopped by other species.  Accession Code: VB.CC.18143.ACORUSCALAMUSTI Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 10-May-2002 to: 01-May-2019
	status: accepted This Community's Level: Alliance This Community's Children: [none]		Names:   Scientific: Acorus calamus Tidal Herbaceous Alliance   Translated: Sweetflag Tidal Herbaceous Alliance   UID: HIGHER_CLASS_UNIT.2.124909 NatureServe Explorer   Code: A.3018