Dioscorea / Shan Yao / 山藥
Tonifies spleen and stomach, tonifies lung and kidney, astringes sperm.
100g (3.5oz) of the concentrated granules extracted from 500g of the raw herbs.
Dissolve 1-2 grams in a cup of hot water to make a tea 2-3 times daily.
Chinese yam (shan yao).