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tuber

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tuber

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Tubers are produced underground from stems, as in the potato, or from roots, as in the dahlia. Tubers can grow into new plants.

Swollen region of an underground stem or root, usually modified for storing food. The potato is a stem tuber, as shown by the presence of terminal and lateral buds, the ‘eyes’ of the potato. Root tubers, for example dahlias, developed from adventitious roots (growing from the stem, not from other roots) lack these. Both types of tuber can give rise to new individuals and so provide a means of vegetative reproduction.

Unlike a bulb, a tuber persists for one season only; new tubers developing on a plant in the following year are formed in different places. See also rhizome.



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? Mentioned in ? References in classic literature
 
This tuber seemed like a faint promise of Nature to rear her own children and feed them simply here at some future period.
Walden & on the Duty of Civil Disobedience by Thoreau, Henry David View in context
Replacing her sandals she sought among the growing track near the stream for whatever edible berries or tubers might be planted there, and found a couple of varieties that could be eaten raw.
The Chessmen of Mars by Burroughs, Edgar Rice View in context
Some eggs they found, and these he sucked raw, as also he ate roots and tubers which Akut unearthed.
The Son Of Tarzan by Burroughs, Edgar Rice View in context
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