Flint Corn (Zea mays var. indurata)
Flint corn has kernels consisting mostly of hard starch and often have a glasslike appearance. Most older landraces in Europe and northeastern North America are flint corn. Used for making cornmeal (e.g. for polenta or cornbread), or to make hominy and tortillas.
The photo below shows cross-sections of grains of white and yellow flint corn.
