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Conyza canadensis Ruderal Wet Meadow | NatureServe Biotics 2019
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Name: Conyza canadensis Ruderal Wet Meadow Reference: NatureServe Biotics 2019 Description: This semi-natural herbaceous association is described from only Curecanti National Recreation Area but likely is more widely distributed in mesic, disturbed sites. Stands occur in the drawdown zone of Blue Mesa Reservoir, which is exposed during the summer, and occupy the entire slope of the exposed reservoir shoreline in addition to narrow areas above the ordinary high water line. Sites are moderately steep (18-25% slopes) and occur between 2284 and 2300 m elevation. The unvegetated surface is predominantly cobble, gravel, and sand. Soils are sandy and well-drained when not inundated by the reservoir. The vegetation is characterized by a sparse to moderately vegetated (to 35% cover) herbaceous layer dominated by the tall forb <i>Conyza canadensis</i>. The herbaceous layer is low in diversity and consists of concentric bands of vegetation, with <i>Conyza canadensis</i> occupying the area at and above the ordinary high water line and <i>Chenopodium album</i> occupying the area at and below the ordinary high water line to the water's edge. Other commonly associated forbs present and contributing low to moderate cover include <i>Chenopodium glaucum, Lactuca serriola, Melilotus officinalis, Salsola tragus, Rorippa palustris ssp. hispida</i>, and <i>Verbascum thapsus</i>. The only graminoid observed on the reservoir drawdown zone is <i>Hordeum jubatum</i>, which provides low cover.  Accession Code: urn:lsid:vegbank.org:commConcept:31702-{007597E1-EA05-4303-BB15-6D42B5AF0E23} Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 16-May-2006 to: ongoing
	status: accepted Community's Parent: Conyza canadensis - Cirsium arvense - Lactuca serriola Ruderal Wet Meadow Alliance This Community's Level: Association This Community's Children: [none]		Names:   UID: ELEMENT_GLOBAL.2.785177 NatureServe Explorer   Code: CEGL002800   Translated: Canadian Horseweed Ruderal Wet Meadow   Scientific: Conyza canadensis Ruderal Wet Meadow (convergence) and Synonyms: (similar) Conyza canadensis Ruderal Herbaceous Vegetation