the onion is a vegetable that is the most widely cultivated species of the genus allium.

agriculture allioideae allium cepa amaryllidaceae asparagales background bawang bulb onion business cebula cipolla commodity common consumption cooking cultivation demand diet export food fresh healthy hike import inflation ingredient kitchen market nutrition oignon onions organic piyaz piyoz plant price purple raw red root sibuyas sipuli spice ui vegetable vegetarian zwiebel most widely cultivated species genus