Tuber

A tuber of potato with growing buds.

A tuber is the thickened part of an underground stem of a plant, such as the potato, with buds from which new plant shoots (stems and young leaves of a new plant) grow.[1]

Most tubers are formed in the ground, but sometimes they can be formed above the ground, in the aerial stems; that is the case of the air potato (Dioscorea bulbifera).

  1. Smith, Gilbert M. (1937). A Textbook of General Botany (Third ed.). New York: The Macmillan Company. p. 80. Available on line in Biodiversity Heritage Library

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