The source is from the aerial part of a perennial herb, Eupatorium fortunei Turcz., family Compositae. The medicinal material is mainly produced in the areas of Jiangsu, Hebei, and Shandong, etc., cut and collected in autumn and summer, the fresh being cut into segments or dried in the sun for being used.

Medicinal Properties: Pungent in flavor, bland in nature and attributive to the spleen, stomach and lung meridians.

Actions: Eliminate dampness due to aromatic nature, clear away summer-heat from the superficies.

Application
1. For dampness-retention syndrome involving the spleen and stomach, it is usually combined with Huoxiang (Herba Agastachis), or with Cangzhu (Rhizoma Atractylodis ) , Houpo ( Cortex Magnoliae Officinalis ), etc. for dampness-heat in spleen meridian with sweetness and greasiness in the mouth, plenty of saliva, and foul breath, etc., it can be decocted alone for oral use.
2. For affection of exogenous summer-heat and dampness or the early stage of damp febrile disease with fever, fullness in the head, fullness and oppression in the chest and epigastrium, oral stickiness, white-greasy or yellow-greasy coating, it is usually combined with Huoxiang (Herba Agastachis), Heye (Folium Nelumbihis), Qinghao (Herba Artemisiae Annuae), etc., also used together with Huashi (Talcum), Yiyiren (Semen Coicis), etc..

Usage and Dosage:
3 - 9 g is used in decoction for oral use. The amount of the fresh is doubled.