Lotus seed, a traditional Chinese medicine name. Dry and mature seeds of Nelumbo nucifera Gaertn., a plant in the water lily family. Distributed in various provinces in northern and southern China. It has the effects of tonifying the spleen, stopping diarrhea, stopping diarrhea, nourishing the kidneys and astringent essence, and calming the heart and mind. Commonly used for spleen deficiency diarrhea, vaginal discharge, nocturnal emission, palpitations and insomnia.