Yes Eleocharis tuberosa is a plant of Eleocharis in Cyperaceae. Its creeping rhizome is slender, and the polyphenols contained in water chestnut will react with iron. If you cook water chestnut in an iron pot, it will change color and affect the impression, so water chestnut. Water chestnut likes warm and humid, not cold-resistant. It usually grows in shallow water. Water chestnut needs high temperature and long sunshine in the early growth stage, such as the optimum temperature for germination is 15-20℃ and the optimum temperature for tillering is 25-30℃. The light time should be shortened (preferably less than 65438) in the late growth stage. The soil is sandy loam or humus loam, with shallow soil layer and pH of 6-7.