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A tuber is a plant organism which stores energy for the parent plant; tubers can also be used for vegetative reproduction by most plant species which form tubers. This separates tubers from roots; roots are capable of taking up energy, but cannot store energy. Many cultures eat tubers, because of their stored energy and dense, rich texture. A good example of an edible tuber is the Potato.


There are two forms of tubers: stem tubers, and root tubers. Stem tubers are underground stems known as RhizomesPotatoes are stem tubers. Stem tubers are also closely related to Corn. Root tubers are formed from sections of the root swell and bud. Dahlias are Root Tubers.