I really like the taste of an onion on my hamburgers. Which onions are closely associated with shallots, leeks and garlic too
I like onions alot and garlic and shallots, but I cant do hamburgers
Some people know of an onion as a bulb onion, and it's actually the most cultivated species in the Allium genus.
Thats interesting. What part of the plant is the actual onion?
A regular onion is a bulb, so it would be the actual part. Scallion onions don't have a full bulb though
Oh they dont? Thats odd
bulb. These leaves are used as a vegetable; they are eaten either raw or cooked. The leaves are often chopped into other dishes, in the manner of onions or garlic. 
Etymology.
The words "scallion" and "shallot" are related and can be traced back to the Greek "ασκολόνιον" ('askolonion') as described by the Greek writer Theophrastus. This name, in turn, seems to originate from the name of the ancient Canaan city of Ashkelon. The plant itself came from farther
of onions, garlic, chives, shallots, leeks, and flowering plants. The first generation of larvae is the most harmful because it extends over a long period owing to the females' longevity and occurs when the host plants are small. Seedlings of onion and leek can be severely affected as can thinned-out onions and shallots. Less damage occurs in wet and cold springs, as this delays the development of the larvae. When plants are attacked, the leaves start to turn yellow and the bulbs rot quickly, especially