Eleocharis tuberosa of Cyperaceae is a shallow perennial herb with bulbs as vegetables. In ancient times, it was called fumi (fumi), commonly known as horseshoe, also known as chestnut, which was named after its shape like horseshoe and chestnut. Calling it a horseshoe only refers to its appearance; It is like a chestnut, not only in shape, but also in taste, composition and function. Because it bears fruit in the mud, it is called a chestnut. The skin of water chestnut is purple-black, and the meat is white. It tastes sweet and juicy, crisp and delicious. Since ancient times, it has the reputation of underground Sydney, and northerners regard it as Jiangnan ginseng. Water chestnut can be regarded as fruits and vegetables, and it is a popular seasonal product.

Another name for water chestnut.

Horseshoe (one of the five shows of Pantang in Cantonese), Puyu (Liushi, Taizhou, Lianyungang, Jiangsu, Taizhou, with the same pronunciation as Mandarin), Zi Chu (Wuhu, Anhui), Guo Zi (Wuwei, Anhui), black taro, chestnut, pear and water chestnut. Qian Cong (Chaoshan, Guangdong), Sagittarius (Shaoyang, Hunan), Chef Hippo (Zhangjiajie, Changde, Hunan), Cimi (Yueyang, Hunan, including Hubei), Mizi (pronounced cí, mǐ), Mowa (Rucheng, Hunan), Pu Qiu (Chongqing, Sichuan) and Puxuan (Dazhou, Sichuan).

1. Eleocharis tuberosa should not be eaten raw, because Eleocharis tuberosa grows in the soil, and there may be more bacteria and parasites attached to the epidermis and inside, so it must be washed and cooked before eating.

2. Cooked food is mostly used as ingredients, and can also be used for frying, burning or stuffing. Such as "Fried shrimps with water chestnut" and "Fried diced chicken with water chestnut".

3. Water chestnut has a good effect of clearing away heat and purging fire; Used for cough due to lung heat, with thick phlegm: water chestnut juice 1 cup, Fritillaria cirrhosa 1.5g (ground into powder), mixed evenly, 2-3 times a day. It can not only clear away heat and promote fluid production, but also supplement nutrition, which is most suitable for patients with fever.