A) Hydrilla
B) Eichhornia
C) Ruppia
D) Pistia
Correct Answer: B
Solution :
Some time the petiole becomes swollen and spongy due to the development of aerenchyma. The type of petioles encloses much air and helps the plant to float. e.g., Trapa bispinosa and Eichhornia.
You need to login to perform this action.
You will be redirected in
3 sec
