A plant was introduced into our country for its beautiful flowers and peculiar shape of its leaves. But it has become  a menacing aquatic weed that depletes oxygen and leads to the death of fishes. Identify this plant and also its vegetative propagules.

The plant is Water hyacinth or Eichhornia princeps and the propagule is offset. Eichhornia is commonly called as terror of Bengal and it is a menacing aquatic weed of freshwater bodies which depletes the oxygen of water body and responsible for death of aquatic fauna.