Akar Platycodon

Platycodon Root (, Jié Gěng), derived from the dried root of Platycodon grandiflorus — a flowering plant with distinctive star-shaped violet blossoms — is one of the most widely used and eloquently described herbs in the Chinese materia medica. Native to East Asia and cultivated across China, Korea, and Japan, the root is harvested in autumn, peeled, and dried for medicinal use. Its characteristic bitter-acrid taste and ability to open and disperse the Lung Qi have made it indispensable in formulas targeting the upper respiratory system for over two thousand years.

In Traditional Chinese Medicine, Platycodon Root has a single-meridian affinity — the Lung — and this focus gives it great specificity and power in addressing Lung conditions. Its primary actions are to open and diffuse Lung Qi, transform and expel Phlegm, and benefit the throat. It is described as a “vessel” or “envoy” herb (zhōu jī) that carries other herbs upward to the chest and throat, making it a frequent addition to formulas targeting the upper burner regardless of the primary pattern. Its acrid, dispersing quality addresses Wind-Cold invasion of the Lung; its bitter, descending quality drains Phlegm and pus from the Lung. It is a core ingredient in classical formulas such as Sang Ju Yin, Yin Qiao San, and Jie Geng Tang.

Platycodon Root has been documented in Chinese herbal medicine since the earliest classical texts, consistently regarded as one of the key herbs for Lung and throat conditions. Its dual role as a therapeutic herb and a “messenger” that guides other herbs to the chest has given it a distinctive and revered place in TCM formula design.