Maize

A study published in 2009 reported starch grain and phytolith evidence indicating maize was present in Mexico's Central Balsas Valley by about 8,700 calendrical years before present. Flora of China notes that maize cultivars are grown for grain and forage and used as a source of oil, syrup and alcohol.

Maize (Zea mays) belongs to the grass family Poaceae and is grown for grain and forage. Flora of Pakistan states that it was introduced to the Old World from tropical America.