Is a perennial herb wrap, medicine, vegetables either. Yam strict requirements of climate, but likes the warm and humid, avoid water, fear of drought. Desirable fertile loose, deep soil, good drainage and planted on sandy loam. The first year planted with reed harvest, with the Potato (zero-cofactor) for the species in the second year of harvest. Yam producing areas of widely distributed, to the north of Hebei, Shandong, south of Guangxi, Guangdong has grown. 

 Yam, medicine believes that yam has a spleen, lungs, Gu Shen, Yijing and other effects. And for lung deficiency cough, diarrhea, spleen, kidney semen, vaginal discharge and frequent urination embolism, have some role in treatment and make up. The lotus root is rich in vitamin C and minerals, so has the blood, aiding sleep, cool annealing, bleeding bulk deposition and other effects, and because the lotus in the human body produces the combined effect, but also the elimination of nerve fatigue, autonomic nervous system disorders , menopausal disorders insomnia and other symptoms of recovery help. 

 Yam spleen, dehumidification, qi, Yi Fei, Gu Shen, Yijing effect, yams contain soluble fiber, food can delay stomach emptying, controlling blood sugar after a meal. 
 Can aid digestion, lower blood sugar. Diabetic spleen diarrhea, frequent urination.