Root of Tatarian Aster

Traditional Use

Primary Actions

• Moistens the Lung and transforms phlegm while stopping cough ... raw Zi Wan is a core cough-lane root for chronic, lingering, or difficult-to-resolve respiratory patterns.
• Directs rebellious Lung Qi downward ... it is used when coughing comes with wheezing, stubborn sputum, or difficulty getting the Lung to descend smoothly.
• Keeps some moistening even while expelling phlegm ... this lets Zi Wan bridge dry-irritative cough and cough with sticky difficult sputum.

Secondary Actions

• This is the raw fibrous-root sibling and should stay clearly separate from the already-live prepared Zi Wan page.
• Compared with the prepared form, the raw root reads a little rougher and more direct in its cough and phlegm lane.

Classic Formulas

• Zhi Sou San ... classic lingering-cough formula in which Zi Wan is one of the core antitussive roots.
• Bai Bu Tang and similar cough prescriptions ... Zi Wan commonly pairs with Bai Bu for stubborn cough with weak Lung descent.
• Mixed phlegm-dryness formulas with Bai Qian, Kuan Dong Hua, or Jie Geng ... common logic when downward movement and expectoration are both needed.

Classical References

• Traditional materia medica places Zi Wan among the key roots that moisten the Lung, transform phlegm, and direct Qi downward.
• The raw and prepared forms overlap, but processing changes texture and handling enough that the two pages should not collapse into one.