Water spinach is called water spinach in Mandarin and is a plant of the Ipomoea genus Photocalyx group. Water spinach is native to East Asia and is now widely cultivated as a vegetable. It is commonly cultivated in Fujian, Guangxi, Guizhou, Sichuan and other provinces in central and southern my country. It is less common in the north and is suitable for growing in places with a warm and humid climate and fertile and humid soil. Not cold tolerant.