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botany : a thick plant stem that grows underground and has shoots and roots growing from it
Full Definition of RHIZOME
: a somewhat elongate usually horizontal subterranean plant stem that is often thickened by deposits of reserve food material, produces shoots above and roots below, and is distinguished from a true root in possessing buds, nodes, and usually scalelike leaves
: a usually horizontal subterranean plant stem that is distinguished from a true root in possessing buds, nodes, and usually scalelike leaves
Horizontal underground plant stem capable of producing the upward shoot and downward root systems of a new plant. This capability allows vegetative (asexual) propagation and enables plants to 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.