Common maize, Shape : Oval, Round

maize or indian corn (called corn in some countries) is zea mays, a member of the grass family poaceae. it is a cereal grain which was first grown by people in ancient central america. it is now the third most important cereal crop in the world. however, little of this maize is eaten directly by humans.

sweet corn (zea mays convar. saccharata var. rugosa; also called sweetcorn, sugar corn and pole corn) is a variety of maize with a high sugar content. sweet corn is the result of a naturally occurring recessive mutation in the genes which control conversion of sugar to starch inside the endosperm of the corn kernel.