Green. "Shayuanzi" is a shiny yellow-brown granular plant. It swells when brewed in boiling water. The soup is green, clear and fragrant. "Shayuanzi" is also called "Shayuanzi". It is sweet and warm in nature and enters the liver and kidney meridian. Clinically Its main effects are to warm and tonify the liver and kidneys, strengthen essence and reduce urination, and has the effect of improving eyesight. Clinically, because it can warm and tonify the liver and kidneys, it can treat waist and knee pain, impotence, and vaginal discharge caused by kidney deficiency and partial kidney yang deficiency. It has certain curative effects on symptoms such as illness, long urine, dizziness, etc. When it enters the liver meridian, it can also improve eyesight. Because the liver receives blood, it can see. Therefore, it can be used for long-term excessive eye use, staying up late, etc. that damage the liver blood. For blurred vision, chrysanthemum, wolfberry, angelica and other combinations can be used to achieve the purpose of treatment. Shayuanzi also has a certain astringent effect. It can solidify essence and reduce urine. It can be combined with yam, Yizhiren, etc. to treat kidney deficiency. Symptoms such as enuresis, spermatorrhea, and incomplete menstruation can all be improved.