Eurasian Watermilfoil is an INVASIVE SPECIES which can take over a water body rather quickly via fragmentation. The plant itself is long and spaghetti like with feather like leaflets (pairs of 14-20) on whorls of 4-5 leafs. The plant may appear reddish at the top and along the stem of the plant.
If a body of water is infested with Eurasian watermilfoil it is possible to see many other issues begin to occur as the plant has negative impacts on fish populations and the biodiversity of vegetative life within the ecosystem. Eurasian Watermilfoil can establish large populations so easily because any leaflet which breaks of from an original plant can grow into another. This makes this invasive difficult to control once populations have been establish and also shows the importance of controlling the plant before problems do occur.