Question

Why is potato considered as a stem and not a root?

Answer 1

Potato is considered as a stem vegetable because it grows in underground stems, known as stolons.

Potato tubers are considered to be thick stems that have the buds sprouting stems and leaves.

Roots do not possess the above mentioned attributes and hence, potato is considered as a stem and not a root.

Answer 2

potatoes grow on underground stems call
stolen. The potato tubers are actually thickens

them because they have buds that sprouts stems and leaves roots do not do that.