Water spinach, formerly known as Ipomoea aquatica, also known as rattan, Ipomoea aquatica, heartbreaking, heartless, urn, empty tuber, bamboo leaves, water saving. White trumpet-shaped flowers with hollow stems are called "water spinach". Vegetables are widely cultivated in rural areas in southern China.

Lotus root is a kind of lotus plant. Lotus root is slightly sweet and crisp, and can be eaten raw or cooked. It is one of the common dishes. Lotus root is also a kind of plant with high medicinal value. Its roots, leaves, flowers and fruits are all treasures, which can be nourishing and used as medicine. Lotus root powder can help digestion, stop diarrhea, stimulate appetite, clear away heat, nourish and prevent internal bleeding. It is a good liquid food and tonic for women, children and patients. Lotus root is rich in vitamin C and minerals, and it is effective, beneficial to the heart, promoting metabolism and preventing rough skin. It is planted in Jiangsu, Anhui, Hubei, Shandong, Henan, Hebei and other places in China. Lotus root, also known as lotus root, is also known as white stem because its underground stem is white. Chen Zhisui's poem "Ode to the Lotus" in Shi Jing, south of the Yangtze River: "Nobody knows that the white stems are buried in the ground. Life is red, green and clear, don't wait for the wind to fill the pool. " Lotus root is also an important agricultural cash crop in the planting area. Lotus root is a plant of Nymphaeaceae.