Onion in the general sense can be used for any plant in the Genus Allium but used without qualifiers usually means Allium cepa L., also called the garden onion.
Why do onions make you cry?.
For more information about the topic Onion, read the full article at Wikipedia.org, or see the following related articles:
Editor's Note: This article is not intended to provide medical advice, diagnosis or treatment.
Recommend this page on Facebook, Twitter,
and Google +1:
Other bookmarking and sharing tools: