The onion, also known as the bulb onion or common onion, is a vegetable and is the most widely cultivated species of the genus Allium. This genus also contains several other species variously referred to as onions and cultivated � Varity: Red Onions, with their wonderful color, are a good choice for lots of fresh uses. � White Onion: White Onions are often used in prepared salads, white sauces, and is the traditional onion for classic Mexican cuisine. They have a golden colour and sweet flavour when sautéed. � Available in yellow, red, and white from March through August Size: Super Colossal, Colossal, Large & Jumbo, Medium, Prepack, Small, Boiler, Creamer.