There is no name for Zihu, so it should be Bupleurum.

Bupleurum, the name of Chinese medicine. It is a herbal medicine included in the "Chinese Pharmacopoeia". The medicinal part is the dried root of the Umbelliferae plant Bupleurum or Bupleurum angustifolia. Excavate in spring and autumn, remove stems, leaves and sediment, and dry.

Bupleurum is a commonly used anti-inflammatory drug.

Also known as Radix Rehmanniae, Shancai, Mushroom Grass, and Chai Cao, they are bitter and slightly cold in nature and flavor, and belong to the liver and gallbladder meridian.

It has the effect of reconciling the exterior and interior, soothing the liver and promoting yang. It is used for colds and fever, alternation of cold and heat, malaria, liver stagnation and qi stagnation, chest and rib pain, anal prolapse, uterine prolapse, and irregular menstruation.