Question

onion and garlic are type of underground stem called​

Answer 1

Answer:

Onion and garlic are type of underground stem called Rhizome.

Answer 2

The onion (Allium cepa L., from Latin cepa "onion"), also known as the bulb onion or common onion, is a vegetable that is the most widely cultivated species of the genus Allium. Its close relatives include the garlic, scallion, shallot, leek, chive, and Chinese onion.