Water bamboo, also known as high melon, water bamboo, water bamboo, water bamboo and high bamboo shoots. It is a perennial herb of Gramineae. Divided into double-season water bamboo and single-season water bamboo (or divided into first-season water bamboo and second-season water bamboo), double-season water bamboo (second-season water bamboo) has higher yield and better quality. The ancients called Zizania latifolia "Zizania latifolia". Before the Tang Dynasty, Zizania latifolia was cultivated as a food crop, and its seeds were called Zizania latifolia or Diaohu, which was one of the "six valleys" (Zizania latifolia, millet, sorghum, wheat and Zizania latifolia). Later, it was found that some water bamboo was infected with smut, the plants were asymptomatic, the stems kept expanding, and gradually formed a spindle-shaped fleshy stem, which is now edible water bamboo. In this way, people use the smut fungus to stop the flowering and fruiting of Zizania latifolia, and use this deformed and diseased plant as a vegetable to propagate. You can take medicine. Only China and Viet Nam plant Zizania latifolia as a vegetable in the world. Zizania latifolia is known as one of the "three good" in Zhuangzi, Xintai, Shandong, and has been passed down since ancient times. Most of them grow in rivers and lakes and are suitable for fresh water.