Water chestnut, also known as water chestnut, eider gromwell, Wuyao, Bodhi chestnut, etc., for the Salixaceae water chestnut perennial rooted herbaceous plants, growing in the pond, the dark green stems on the ground clumps, white flesh, sweet and juicy flavor, crisp and delicious, with the "underground snow pear" of the reputation. Water chestnut is the public's favorite seasonal products, both as a fruit to eat raw, but also as a vegetable to eat, very rich in nutrition.