In Banana, true stem is underground. The stem like structure outside soil is formed by
Peduncle
Petiole of leaves
Leaf bases
Overlapping of leaves
The systematic position of Cucurbitaceae according to Bentham and Hooker's system
Presence of staminode is characteristic feature of
Potato and sweet potato
An inflorescence which is not racemose but appears like a single flower
Haustoria are