From Wikipedia, the free encyclopedia This article is about the cereal grain. For other uses, see Maize (disambiguation) . "Corn" redirects here. In British English, "corn" can mean any cereal . For other uses, see Corn (disambiguation) . Maize Illustration depicting both male and female flowers of maize Scientific classification Kingdom: Plantae (unranked): Angiosperms (unranked): Monocots (unranked): Commelinids Order: Poales Family: Poaceae Subfamily: Panicoideae Tribe: Andropogoneae Genus: Zea Species: Z. mays Subspecies: Z. mays subsp. mays Trinomial name Zea mays subsp. mays L. Maize ( / ˈ m eɪ z / mayz ; Zea mays subsp. mays , from Spanish: maíz after Taíno mahiz ), known in some English-speaking countries as corn , is a large grain plant domesticated by indigenous peoples in Mesoamerica in prehistoric time...