多花菜豆为豆科菜豆属中以嫩荚、种子及块根供食用的栽培种,别名龙爪豆、大白芸豆、荷包豆等。多花菜豆原产于中南美洲,考古学证明早在9000年前古代美洲墨西哥的印第安人就已经食用多花菜豆,当时它还是野生植物。但人们不能肯定何时开始种植这种植物,一般认为到公元前2000年左右,人类已在驯化这种植物。16世纪初传入欧洲,自多花菜豆传入英国后,很长时期被当作观赏植物栽培,直到18世纪欧洲人才把多花菜豆作为食品;16世纪中叶 Flowering beans beans leguminosae to tender pods, seeds and roots for food cultivation, alias dragon claw beans, white kidney beans, beans and other purse. Flowering beans native to Central and South America, archaeological evidence that as early as 9000 years ago, Indians of ancient Americas Mexico already eat flowering beans, when it is still a wild plant. However, one can not be sure when the plants will begin to be planted. It is generally believed that by the year 2000 BC, humans have domesticated the plants. In the early 16th century, it was introduced to Europe and was introduced into Britain for a long time after it was cultivated as a ornamental plant until the eighteenth century Europeans took flowering beans as food. In the mid-16th century