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Zhangqiu Green Onion
Zhangqiu Green Onion was introduced into Qilu area in 681 BC, with a history of more than 3000 years. As early as 1552 A.D., it is dubbed King of Green Onion by emperor Ming Shizong. One of its good varieties, called Da Wutong , is honoured as World King of Green Onion, its general plant height is 150 to 170 centimeters, maximum plant height can reach as high as 2 meters, weight of single plant is about 0.5kg, some can even attain more than 1.5kg.