The source is from underground rhizomes of perennial herbaceous plant, Phragmites communis Trin, family Gramineae.The medicinal material is collected in the end of spring and early stage of summer or in autumn, cut into segments, the fresh or the dried can be used.

Medicinal Properties:
Sweet in flavor, cold in nature and attributive to the lung and stomach meridians.

Actions:
Clear away heat and promote the production of the body fluids, stop vomiting and relieve restlessness.

 

Application
1. For the treatment of febrile disease consuming the body fluids marked by fever with restlessness, thirst, redness of the tongue and shortness of the tongue fluid.
2. For vomiting due to stomach-heat.
3. It is used for cough due to lung-heat and pulmonary abscess and can resolve phlegm and drain pus as well as clear away lung-heat.