A rhizome is a type of underground stem that grows horizontally. It serves as a storage organ and a means of vegetative reproduction for plants. Unlike roots, rhizomes can produce shoots and roots at nodes, allowing the plant to spread and establish new growth in different locations. Common examples of plants with rhizomes include ginger, bamboo, and canna lilies. These structures help plants survive adverse conditions by storing nutrients and enabling them to regenerate after damage. Rhizomes play a crucial role in the ecology of many ecosystems, contributing to soil stability and plant diversity.