Risk analysis of the non-native Fanwort (Cabomba caroliniana) in the Netherlands (Waterwaaier)

Fanwort (Cabomba caroliniana) is a member of a genus of plants that is endemic to South America. C. caroliniana has dispersed outside of its native range to a number of European countries and the United States of America, Canada, Australia, India, China and Japan. It has been declared an invasive species in many of these countries. C. caroliniana was first recorded in the Netherlands in 1986 at Maasbracht harbour, in the south of the country. Since then it has been recorded at a number of locations and has become invasive in at least 2 locations, Loosdrecht to the north of Utrecht and in the Oranjekanaal region.