The source is from the flower bud of Magnolia biondii Pamp, M. denudata Desr. and M. liliflore Desr., family Magnoliaceae. The medicinal material is collected when its flower bud does not open in the early stage of spring, dried in shade after the stem is picked out and the crude can be used.

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

Actions:
Expel wind and cold and clear the nasal passage.

Application
1. For the headache due to sinusitis.
2. For exogenous diseases due to wind and cold manifested as headache and stuffy nose.