The onion (Allium cepa L., from Latin cepa “onion”), also known as the, is a vegetable that is the most widely cultivated species of the genus Allium. Its close relatives include the garlic, scallion, shallot, leek, chive and Chinese onion.
Onions have been variously described as having originated in Iran, the western Indian subcontinent and Central Asia
Onions are cultivated and used around the world. As a food item, they are usually served cooked, as a vegetable or part of a prepared savoury dish, but can also be eaten raw or used to make pickles or chutneys. They are pungent when chopped and contain certain chemical substances which irritate the eyes.
Other names :
Bulb onion or common onion.