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plant of the family Liliaceae (lily family), of the same genus (Allium) as the chive (A. schoenoprasum), garlic (A. sativum), leek (A. porrum), and shallot (A. ascalonium).
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Allium ascalonicum. A bulbous onionlike herb. Also known as scallion.
1. an alliaceous plant, Allium ascalonicum, cultivated for its edible bulb
2. the bulb of this plant, which divides into small sections and is used in cooking for flavouring and as a vegetable