Indian corn

(Botany) A cereal plant of the genus Zea (Zea Mays), also simply called corn, used widely as a food; the maize, a native plant of America;

(Botany) a primitive variety of Zea Mays having variegated kernels on each cob, in distinction from the more commonly used yellow corn; it is often used as decoration at Thanksgiving time. See Corn, and Maize.

In modern American usage, the word corn when unmodified usually refers to yellow corn, and Indian corn refers to the variegated variety.