Maize is a cereal grain that was domesticated in Mesoamerica. It is called corn in the United States, Canada, and Australia, but in other countries that term may refer to other cereal grains. It is called mealies in southern Africa. While some maize varieties grow 7 m (23 ft) tall at certain locations, commercial maize has been bred for a height of 2.5 m (9 ft). Sweetcorn is usually shorter than field-corn varieties.
The husks are also used as food wrappers in cooking, though they are not eaten.