My favorite food is raw onion. Have you ever tried it?
I like cooked onion a lot. I also like it's close relatives garlic, shallot, leaks and chives.
Yes, they are very similar. Do you know what gives them that strong characteristic "onion taste"? 
I'm not sure and no one really knows where its wild original form came from. 
Interesting. Do you know if onions will grow in the wild? Or were just developed by farmers?
"A." ×"proliferum"), and the Canada onion ("Allium canadense"). The name "wild onion" is applied to a number of "Allium" species, but "A. cepa" is exclusively known from cultivation. Its ancestral wild original form is not known, although escapes from cultivation have become established in some regions. The onion is most frequently a biennial or a perennial plant, but is usually treated as an annual and harvested in its first growing season.
The onion plant has a
Scallion
Scallions (also known as green onions, spring onions, or salad onions) are vegetables of various "Allium" onion species. Scallions have a milder taste than most onions. Their close relatives include garlic, shallot, leek, chive, and Chinese onion.
Although the bulbs of many "Allium" species are used as food, the defining characteristic of scallion species is that they lack a fully developed bulb. "Allium" species referred to as scallions have hollow, tubular green leaves growing directly from the