The world's largest Vegetables

Is a yam...

The 1985 Guinness Book Of World Records (UK Edition) lists some of the record-breaking vegetables, including a 35 pound (16 kg) turnip, a 45 pound (20 kg) red cabbage, a 28 pound (13 kg) broccoli, a 52 pound (24 kg) cauliflower, a 25 pound (11 kg) lettuce, and a remarkable 124 pound (56 kg) cabbage six feet (1.8 m) in diameter. Although this giant cabbage cited in the Guinness Book seems unbeatable for the title of "World's Largest Vegetable," there are tropical yams belonging to the genus Dioscorea that may be 6 to 9 feet long (2-3 m) and weigh 150 pounds (68 kg) or more, although they are usually harvested at about 2-6 pounds. These yams are not to be confused with fleshy storage roots of red sweet potatoes (Ipomoea batatas) of the Morning Glory Family (Convolvulaceae) which are also called yams.