Bananas come from South America,South-East Asia and Africa. 
Where Do Bananas Come From?
En less your talking about something gross,Banana trees.
Bananas come from banana trees in tropical regions
Bananas are a tropical fruit that grow in bunches on the banana trees. They are usually imported from central America to the USA typically countries like Honduras etc.
Bananas are native to Southeast Asia and grow on plants that look like trees but are actually just tall stems called pseudostems. They are cultivated through the tropical regions.
Bananas come from that of plantains, being that they do not have seeds, they cannot be planted. A banana is a berry.
Most bananas grow in South and Central America (Brazil, Ecuador,
Guatemala, Panama, Mexico, Colombia), South-East Asia (China,
Indonesia, Malaysia, Philippines, Thailand), Africa.... Check out - What countries do bananas grow in?
Guatemala, Panama, Mexico, Colombia), South-East Asia (China,
Indonesia, Malaysia, Philippines, Thailand), Africa.... Check out - What countries do bananas grow in?