Sugarcane is
Saccharum officinarum
Saccharum officinarum, commonly known as sugarcane is a large, strong, growing species of grass belonging to family Poaceae. It was originated in New Guinea and it is a perennial plant. It is cultivated in tropical and subtropical countries worldwide for the production of sugars and other products. It is used for the production of sugar, ethanol. the byproducts are used for feeding livestock. So, the correct answer is 'Saccharum officinarum'.