
in botany, horizontal, underground plant stem capable of producing the shoot and root systems of a new plant. This capability allows the parent plant to propagate vegetatively (asexually) and also enables a plant to perennate (survive an annual unfavourable season) underground. In some plants (
e.g., water lilies, many ferns and forest herbs), the rhizome is the only stem of the plant. In such cases, only the leaves and flowers are readily visible.