Eurasian watermilfoil is a submerged ... sexual reproduction is responsible for the production of hybrid (myriophyllum spicatum sibiricum) watermilfoil. Hybridization was first reported in 1954 and ...

Eurasian watermilfoil (EWM ... due to the difficulty distinguishing it from northern watermilfoil (Myriophyllum sibiricum), it wasn't recognized as EWM until 1970 and was most likely established in ...