(Hydrocharis morsus-ranae)

How it looks like?

Its a plant and its leaves are 2.5 to 5 cm wide. The bottom of it is purple-red with a spongy coating along the middle of the leaf.

Last seen

It was found first from Europe and parts of Asia and Africa. It has last been seen in Ottawa from it came from Europe to the central experimental farm to test for commercial use as an ornamental plant.

When did it come to canada

It came from Europe to Ottawa(central experimental farm) for commercial use as an ornamental plant.

Known accomplices

It was brought from Europe to the central experimental farm located in Ottawa for commercial use as an decorative plant so they never knew it was going to be dangerous.

Crimes committed

When the plant dies it decomposes it removes oxygen from the water which affects fish and other aquatic life so they wont be able to breathe.

Attempts at capture

To control the species don't go near infested areas or reduce your speed when your driving near it . Also don't ever plant it in your aquarium or water garden.


If you capture or spot it we will give you $1000 cash. Its very harmful to humans because it could make it difficult for swimmers and boaters. Also it will prevent other recreational uses of waterways and clog drainage canals and streams

Who to contact?

If you spot it contact invading species hotline at 1-800-563-7711 or your could report it online at www.invadingspecies.com/report/