The largest banana trees are found in the West Papua region of Indonesia. Their scientific name is Musa ingens, but the local name is ndowin or apit sepoh. Some Musa varieties can grow up to 50 feet, about seven times the height of an average banana tree. The fruit isn’t particularly long, but it’s large in circumference. The largest banana fruit may be an African variety called the Rhino Horn Plantain, which can be up to two feet long.