Myriophyllum aquaticum in the Netherlands
Myriophyllum aquaticum (Haloragaceae, EPPO List of Invasive Alien Plants) was first recorded in the Netherlands in the 1990s according to the National Database Flora and Fauna, although some herbarium vouchers, stored at Leiden, indicate an earlier presence of the species in the Netherlands. M. aquaticum is now widespread across the whole country.
Johan van Valkenburg, Plant Protection Service of the Netherlands, E-mail: email@example.com
University of Amsterdam, National Database Flora and Fauna. http://www.science.uva.nl/ibed/home.cfm/31A0354E-5168-487E-8FBE6738A56505F4
Q-Bank Invasive Plants in the Netherlands (2011) Myriophyllum aquaticum http://www.q-bank.eu/Plants/BioloMICS.aspx?Link=T;TargetKey=4917900000000500;Rec=63