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Sagittaria latifolia Herbaceous Vegetation | Western Ecology Working Group of...
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Name: Sagittaria latifolia Herbaceous Vegetation Reference: Western Ecology Working Group of... Description: From Christy (2004): This herbaceous vegetation occurs from California to British Columbia at 2 to 152 m (6-500 feet) elevation. Habitat is seasonal pools, ponds, sloughs, and freshwater tidal mudflats. This association forms emergent marsh and is primarily a low-elevation wetland type in western Oregon. Stands are flooded early in the season and may dry out as summer progresses, or may remain flooded throughout the growing season, and some are irrigated by daily freshwater tides along the lower Columbia River. They typically occur in floodplain openings ringed by often extensive stands of <i>Salix lucida ssp. lasiandra</i> and are generally too wet for <i>Fraxinus latifolia</i> or <i>Spiraea douglasii</i>. Twenty-nine herbaceous species are recorded from sampled plots, <i>Sagittaria latifolia</i> being the most abundant with an average cover of 52% and ranging from 25-85%. <i>Eleocharis palustris</i> is present in more than half the plots but at low cover. Other species with significant patches include <i>Bidens cernua, Schoenoplectus tabernaemontani, Sparganium angustifolium, Potamogeton natans, Leersia oryzoides</i>, and <i>Eleocharis ovata</i>. Conditions are usually too wet for <i>Phalaris arundinacea</i> except around the edges of ponds and sloughs where competition is intense. <i>Sagittaria latifolia</i> was a well-documented staple food of the Kalapuya and Chinook people and intensively managed (Darby 1996, Boyd 1999). It was probably widespread on floodplains in the Willamette Valley but has become rare because of loss of pond and slough habitat to flood control, agriculture, urban development, and <i>Phalaris arundinacea</i>. The largest populations remaining in the region occur on Sauvie Island.  Accession Code: VB.CC.32766.CEGL003321 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.2.686720 NatureServe Explorer   Translated: Broadleaf Arrowhead Herbaceous Vegetation   Scientific: Sagittaria latifolia Herbaceous Vegetation   Code: CEGL003321