Water Hyacinth or locally called Keladi Banting is a native of South America and probably has been introduced to Malaysia in the early 1900’s. This aquatic plant has purple flowers.
Its ability to float on water made it popular plant to decorate fish aquarium, ponds and lakes. It can be used to absorbing heavy metals from polluted water. However, in tropical climate this plant is a scourge all over the world causing losses to agriculture, water supply and blocking river transportation. Its fast rate of growth forms a thick mat of floating roots impossible to penetrate.