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Solanum (family Solanaceae) A genus of plants, with flowers in which the stamens are prominent, and converging into a cone, and the corolla lobes are spreading or reflexed. The genus includes S. tuberosum (potato), which is of complex hybrid origin, from the Andes, and is one of the world's major food plants. Some species have fruits with ornamental berries. There are some 1400 species, many of them tropical.