Corn is another of the most popular food of human beings. It is an annual herb. Stems stout, erect, 1 to 4 meters high, with pith between nodes and aerial roots at each node at the base. The leaves are long, flat, sword-shaped, or lanceolate, with acuminate apex, wavy and wrinkled edges, and a strong midrib. Male panicle terminal, male spikelets tw...