The edible part of Knol-Khol is .........

Turmeric powder is obtained from which part of the plant?

Thorn is a modified branch because

In $Amorphophallus$ and $Colocasia$ $(Araceae)$, an extremely enlarged underground vertical stem meant for vegetative reproduction and storage is:

Which of the following plants have long,slender,and coiled stem tendrils developed from axillary buds?

Potato is an $underground$ stem because it