Name the units of vegetative propagation in water hyacinth.Explain giving reasons why it has become the most invasive aquatic weed.
Units of vegetative propagation in water hyacinth are offsets. This plant was introduced in India because of its beautiful flowers and shape of leaves. Since, it can propagate vegetatively at a phenomenal rate and spread all over the water body in a short period of time, it has become one of the most invasive weeds found growing wherever there is standing water.