Adenophora triphylla (also known as Japanese lady bell) is one of the 62 species of Adenophora. It is a flowering plant in the Campanulaceae family that is distributed mainly over the Korean Peninsula, Japan, and China.A. triphylla is traditionally used for sputum, cough and bronchial catarrh.It is believed to have antifungal, expectorant, and cardiotonic effects.