Yes, it reproduces from underground stem.
Carrot, Sugarcane, Turnip & Onion all these are underground stem.
The potato reproduces by underground stems or roots (I think)
stem
The underground stem of a club moss is called a rhizome. Rhizomes are horizontal, underground stems that produce roots and shoots to reproduce and spread.
Potato , Colocasia ,Canna , ginger , turmeric etc.
Carrot stems grow underground, and weat stems grow underground.
Carrot stems grow underground, and weat stems grow underground.
Rhizome
Water chestnut plants reproduce through a process called vegetative reproduction or by producing seeds. They spread through rhizomes (underground stems) that develop into new plants, as well as by producing floating seeds that can germinate and grow into new plants in suitable aquatic habitats.
No, we just discussed this in our bio class its actually a tuberous root, not to be confused with the term tuber. Potatoes on the other hand are stems, but there is a difference.
The carrot, radish, onion and sugar beet have stems that are above ground and the roots and edible tuber/bulb is underground. The stem is green and the carrot is orange; the beet is red, the onion is white/red; the radish is red/white.
Potatoes, garlic and onion are stems that grow underground which we know best. Yam and ginger are also examples of stems that grow underground. Rhizome, tuber, bulb and corm are other examples of underground stems that are not known by many people.