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Ludwigia octovalvis is found in marshes, and is common nearly throughout the state of Florida (Wunderlin, 2003).

Mexican primrosewillow is also located in Georgia, Alabama, Louisiana, Mississippi, North & South Carolina, Texas, Hawaii, Puerto Rico and the Virgin Islands (Kartesz, 1999).

For brief control information, see Efficacy of Herbicide Active Ingredients Against Aquatic Weeds by K. Langeland, M. Netherland, and W. Haller.