Native to the Andes of Peru, the potato plant is now cultivated throughout the temperate regions of the world. It is grown for human consumption and for its starch, which is used in the manufacture of alcohol and adhesives.

G.I. Bernard/Oxford Scientific Films.

Potato Plant," Microsoft® Encarta® 96 Encyclopedia. © 1993-1995 Microsoft Corporation. All rights reserved

Sweet Potato

The sweet potato is widely cultivated for its edible root.

Dorling Kindersley

Sweet Potato," Microsoft® Encarta® 96 Encyclopedia. © 1993-1995 Microsoft Corporation. All rights reserved.