旧中国,凡“舶来品”大都冠上“洋”字,洋姜即为一例。洋姜,学名菊芋,故乡在北美洲,清代引入我国。其食用部分长在地下,形状凸凹不平,酷似生姜,所以叫洋姜。这种蔬菜虽在我国各地种植,但知道洋姜是菊芋的人甚少,“别名”喧宾夺主了。 Old China, where “exotic” most of the top “foreign” word, Yang Jiang is an example. Jerusalem artichoke, scientific name Jerusalem artichoke, hometown in North America, the Qing Dynasty into China. Its edible part of the long underground, uneven shape, resembles ginger, so called foreign ginger. Although this kind of vegetable is planted in all parts of China, it is very difficult to know that the foreign ginger is a Jerusalem artichoke. The alias is overwhelming.