Question

Why does water hyacinth spread all over the water body in such a short period of time that it is challenging to get rid of them?

• A. It efficiently absorbs the nutrients from water.
• B. It can propagate vegetatively at a phenomenal rate.
• C. It has specialised roots that help in the adaptation of water hyacinth to freshwater easily.
• D. None of the above.

Answer 1

The correct option is B It can propagate vegetatively at a phenomenal rate.

Water hyacinth is an aquatic plant which can propagate vegetatively at a phenomenal rate. Hence, it is challenging to get rid of them as it spreads all over the water body in a short period of time. In water hyacinth, vegetative propagation occurs by offset.

This plant was introduced in India because of its beautiful flowers and shape of leaves. However, it is one of the most invasive weeds found growing wherever there is standing water. It drains oxygen from the water causing the death of aquatic organisms. Hence it is called ‘ terror of Bengal’.