Water Hyacinth Flowers-Violet Flower of the Worst Aquatic plant Weed from Kerala Rivers

What about water weeds?.Water Hyacinth, an aquatic plant floating in fresh water bodies like rivers ponds etc..They have slender round leaves and light violet flowers. Its happens to be like a violet flower feast when they usually blooms.. They spreads like violet carpet all over the rivers and ponds.. But the problem is, the Spreading itself.. They can spread faster and fierce, and when got