What are rhizomes?

Rhizomes are specialized underground stems that have the capability to spread horizontally in the soil, producing new shoots that grow above ground. This vegetative reproduction allows plants to expand into new areas, giving rise to new plants that are genetically identical to the original. This is particularly advantageous for plants in various environments, as it helps them to colonize areas efficiently, access resources, and maintain consistent growth patterns.

The other choices reflect different plant structures and functions but do not accurately describe rhizomes. For instance, while some underground structures do store water, that characteristic is not specific to rhizomes. Additionally, roots focus primarily on nutrient absorption and anchoring the plant, not on producing new shoots. Above ground structures may reproduce, but the definition specific to rhizomes highlights their nature as underground stems that facilitate vegetative growth.