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Bidens cernua - Euthamia occidentalis - Ludwigia palustris Intertidal Mudflat Alliance | NatureServe Biotics 2019
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Name: Bidens cernua - Euthamia occidentalis - Ludwigia palustris Intertidal Mudflat Alliance
Reference: NatureServe Biotics 2019
Description: The alliance is strictly herbaceous and dominated by species such as <i>Amaranthus</i> spp., <i>Bidens cernua, Eleocharis palustris, Euphorbia</i> spp., <i>Euthamia occidentalis, Leersia oryzoides, Ludwigia palustris, Polygonum hydropiperoides</i>, and <i>Sagittaria latifolia</i>, but many more species have been recorded. These are low-growing and prostrate forbs, and drying aquatic plants, i.e., species that tolerate early-season flooding and summer drying that exposes mudflats with subirrigation. This alliance was probably fairly widespread in lowlands of the West prior to flood control. Prolonged pooling in depressions and freshwater tidal flooding along streams helps to keep invasive <i>Phalaris arundinacea</i> from invading stands. This herbaceous alliance of the western U.S. occurs in low-elevation (&lt;1000 m [3280 feet]) marshes and mudflats along low-gradient streams, shallow ponds, and depressional wetlands. Soil is seasonally flooded to perennially saturated silt loam to clay. 
Accession Code: urn:lsid:vegbank.org:commConcept:39061-{209E79F3-01BA-420A-8CF1-5184A55848B0}
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 18-Dec-2014 to: ongoing
      Names:   UID: ELEMENT_GLOBAL.2.899902 NatureServe ExplorerNatureServe Explorer logo
  Code: A3850
  Translated: Nodding Beggarticks - Western Goldentop - Marsh Seedbox Intertidal Mudflat Alliance
  Common: Western Forb Intertidal Mudflat
  Scientific: Bidens cernua - Euthamia occidentalis - Ludwigia palustris Intertidal Mudflat Alliance