Onion

Onion
Onions
Scientific classification
Kingdom:	Plantae
Division:	Magnoliophyta
Class:	Liliopsida
Order:	Asparagales
Family:	Alliaceae
Genus:	Allium
Species:	A. cepa
Binomial name
Allium cepa L.

Onions are plants in the genus, Allium. They are eaten as vegetables. Most species of onions have bulbs that people can eat. They have a strong flavour and a very distinctive smell.

Onions have been grown for a long time. They were probably first grown in Ancient Egypt, together with leek and garlic, but maybe earlier. Now, most of the world's cultures eat onions.