The pomato (or tomtato) is a hybrid or chimera produced by grafting a tomato plant and a potato plant, both of which are members of the Solanaceae (nightshade) family.
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The concept of grafting related potatoes and tomatoes so that both are produced on the same plant was originally developed in 1977 at the Max Planck Institute for Developmental Biology in Tübingen, Germany, and although healthy, the plant produced neither potatoes nor tomatoes.