Eurasian Watermilfoil

Species: Myriophyllum spicatum

weed identification

common name
Eurasian watermilfoil
description

Eurasian watermilfoil is a serious weed in other parts of the world and has the potential to be a serious threat in Australia. The plants growth is prolific during summer. It is mostly submerged, sometimes with an emergent spike, covered in thin, olive-green leaves. The plant produces pink petals and red, round fruit at the ends of their stems.

habitat

Prefers slow-moving or still water but will also grow in fast-moving environments. The plant can thrive in a range of temperatures and water conditions.

distribution
Not yet introduced, but has the potential to become an invasive weed.
native or exotic?
Exotic
reproduction

The plant is able to reproduce by sexual and vegetative reproduction.

dispersal

The Eurasian watermilfoil is mostly spread by plant fragments and can travel long distances by currents.

benefits

Due to its prolific nature, any benefits are seriously minor.

What does Eurasian Watermilfoil look like?

Use these images below to help you decide whether you are dealing with Eurasian Watermilfoil.

Disadvantages of Eurasian Watermilfoil

The Eurasian watermilfoil grows rapidly and if introduced has the potential to greatly impact Australian water bodies:

  • Displaces other native water plants

  •  Reduces food and habitat for fish and other aquatic animals

  • Potential to obstruct water flow, block pumps

  • Impedes water-based recreation

  • Reduce the aesthetic appeal

treatment

Please do not attempt to treat or dispose of this weed yourself. Notify relevent authorities if found.

prevention options

Please do not attempt to treat or dispose of this weed yourself. Notify relevent authorities if found.