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Echinochloa muricata NRCS. en Echinochloa muricata from Robert Mohlenbrock USDA SCS Midwest wetland flora Field office illustrated guide to plant species Midwest National Technical Center Lincoln Courtesy of USDA NRCS Wetland Science Institute usda gov imageID ecmuavp tif Robert Mohlenbrock Template PDUSGovUSDANRCS PDUSGov Echinochloa