A plant (Solanum tuberosum) of the Nightshade family, and its esculent farinaceous tuber, of which there are numerous varieties used for food. It is native of South America, but a form of the species is found native as far north as New Mexico.
- A South American plant (Solanum tuberosum) widely cultivated for its starchy edible tubers.
- A tuber of this plant.
- A sweet potato. See Regional Note at possum.