A thickened underground stem or root that stores nutrients and energy for the plant, often serving as a means of reproduction. Potatoes and sweet potatoes are familiar examples of tubers.
From Latin 'tuber' meaning 'hump, swelling, or lump,' related to 'tumere' meaning 'to swell.' The word originally described any swollen plant part but came to specifically refer to underground storage organs.
Tubers are nature's underground pantries, packed with starches and nutrients that helped fuel human civilization! The 'eyes' on a potato are actually dormant buds that can sprout into new plants, making tubers both food storage and reproductive organs.
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