What is "flint corn"

n. corn having kernels with a hard outer layer enclosing the soft endosperm [syn: flint maize, Yankee corn, Zea mays indurata]

Flint corn (Zea mays indurata; also known as Indian corn or sometimes calico corn) is a variant of maize (var. Linnaeus), the same species as common corn. Because each kernel has a hard outer layer to protect the soft endosperm, it is likened to being hard as flint; hence the name.