Garlic is a member of the lily family (Liliaceae). It is also closely related
to the onion, shallot, leek and chive. There are many varieties of garlic
but the most widely used variety is Allium sativum, which is the garlic
used as a spice. The majority of the plant is considered edible including
the leaves, stems and flowers. These are usually consumed while immature.
The most commonly used part is the underground bulb, which is comprised
of several cloves joined together and encased in a papery covering.