in order for herbicides to penetrate the leaves, surfactants must be added; however, herbicides may impact non-target native plants or animals. In the United Kingdom, this plant is one of five introduced aquatic plants which are to be banned from sale from April 2014. This is the first ban of its kind in the country. In Europe, Parrot feather is included since 2016 in the list of Invasive Alien Species of Union concern (the Union list). This implies that this species cannot be imported, cultivated, transported, commercialized, planted, or intentionally released into the environment in the whole of the European Union. References External links Jepson Manual Treatment Berkeley Botany Photo of the Day Texas Invasives Pacific Island Ecosystems at Risk Invasive Plant Atlas of the Midsouth Photo gallery aquaticum Freshwater plants Flora of the Amazon Plants described in 1825