Coltsfoot Flower Kuan Dong Hua: The TCM Herb for Cough Relief and Lung Health
- Health Lab
- Jun 10, 2025
- 4 min read
Updated: Jun 19, 2025
Kuan Dong Hua, also known as Coltsfoot flower (Tussilago farfara L.), is the dried flower bud of a resilient plant that blooms in the harsh cold of winter. This herb holds a special place in Traditional Chinese Medicine (TCM) for its remarkable ability to soothe coughs and support lung health. Known for its gentle warmth, it effectively clears phlegm and calms respiratory issues.
Kuan Dong Hua was first recorded in the Shennong Bencao Jing (Shennong’s Classic of Materia Medica) as a top-grade herb, praised for treating coughs, asthma, and heat-related ailments.
Li Shizhen’s Compendium of Materia Medica described its delicate, chrysanthemum-like buds and highlighted its ability to warm the lungs and disperse cold, distinguishing it from similar herbs like Zi Wan. Other texts, such as the Yaoxing Fu and Mingyi Bielu, noted its role in relieving persistent coughs and lung weakness, cementing its reputation in TCM.
Properties of Coltsfoot Flower Kuan Dong Hua
Nature and Channels
Taste: Pungent, slightly bitter
Nature: Warm
Channel: Lung
Main Benefits
Moistens the lungs and stops cough
Warms the lungs and clears phlegm
Calms breathing and relieves asthma
Dosage
Internal use: 3–9 grams, boiled in decoctions.
Growing Regions
Primarily grown in northern China, including Shanxi, Hebei, and Shaanxi.
Identification
Shape: Cylindrical, single or clustered, 0.5–1 cm long, 0.5–1.5 cm in diameter.
Color: Covered in scale-like bracts with white or pale yellow fuzz; purplish-red buds are preferred.
Texture: Light, soft, with white fuzz visible when torn.
Scent and Taste: Aromatic scent, slightly bitter and pungent taste.
Preparation
Used raw or honey-fried. Honey-frying enhances its lung-moistening and cough-relieving effects while softening its pungent nature.
Clinical Uses of Coltsfoot Flower Kuan Dong Hua
Kuan Dong Hua is used in TCM to treat various respiratory conditions:
Cold-Phlegm Cough: Relieves cough with abundant, thin, white phlegm, worsened by cold, often with nasal congestion or clear runny nose.
Chronic Lung Deficiency Cough: Eases persistent dry cough, shortness of breath, and fatigue, with little or no phlegm.
Chronic Bronchitis: Reduces cough, phlegm, and wheezing associated with chronic bronchitis.
Specific Benefits
Moistening Lungs and Stopping Cough: Contains compounds like tussilagone that suppress cough and reduce airway irritation.
Warming Lungs and Clearing Phlegm: Its warm nature helps dissolve cold phlegm, making it easier to expel.
Calming Breathing: Lowers airway resistance, relieving asthma and breathlessness.
Coltsfoot Flower Kuan Dong Hua in TCM Formulas
Coltsfoot Flower Kuan Dong Hua is often combined with other herbs in TCM formulas to enhance its effects. Here are some examples:
Zhi Sou San (Stop Cough Powder): Combines Kuan Dong Hua with Platycodon, Schizonepeta, Zi Wan, Stemona, Cynanchum, Tangerine Peel, and Licorice to open the lungs and stop cough, ideal for wind-cold coughs.
She Gan Ma Huang Tang (Belamcanda and Ephedra Decoction): Includes Kuan Dong Hua with Belamcanda, Ephedra, Ginger, Asarum, Zi Wan, Schisandra, Jujube, and Pinellia to clear phlegm and calm asthma, used for severe cough and wheezing.
Wen Fei Zhi Liu Dan (Warm Lung and Stop Leakage Pill): Warms the lungs, disperses cold, and stops chronic cough, treating conditions like cold-phlegm cough, chills, and shortness of breath.
Comparison with Similar Herbs
Kuan Dong Hua shares cough-relieving properties with other TCM herbs but has distinct characteristics:
Zi Wan (Aster Root): Moistens lungs and clears phlegm but is slightly warm and better for heat-related or chronic coughs due to its lung-clearing action.
Bai Bu (Stemona Root): Moistens lungs and stops cough, with additional insect-repelling properties, excelling in whooping cough.
Xing Ren (Apricot Seed): Lowers qi, stops cough, and relieves asthma while also moistening intestines, suitable for both external and internal coughs.
Kuan Dong Hua’s warmth makes it ideal for cold-phlegm coughs, while Zi Wan targets heat, Bai Bu focuses on persistent coughs, and Xing Ren adds intestinal benefits.
Modern Applications and Research
Modern research highlights Kuan Dong Hua’s benefits:
Cough and Phlegm Relief: Tussilagone and volatile oils suppress cough reflexes and reduce airway secretions.
Anti-Inflammatory: Volatile oils reduce respiratory inflammation.
Antibacterial: Inhibits certain bacteria, supporting infection treatment.
Anti-Tumor Potential: Early studies suggest anti-tumor activity, though more research is needed.
Clinically, Kuan Dong Hua is used for chronic bronchitis, asthma, and other respiratory conditions. Its potential in immune modulation and cancer treatment is under exploration.
How to Use Kuan Dong Hua Safely
Precautions
Yin Deficiency with Heat: Avoid use, as its warm nature may worsen dry mouth, throat, or heat symptoms.
Pregnant Women: Use cautiously, as safety data is limited.
Long-Term Use: Avoid prolonged use to prevent side effects; follow medical guidance.
Usage Tips
Honey-fried Kuan Dong Hua is gentler and more effective for chronic coughs. Consult a TCM practitioner for proper dosage and suitability.
Conclusion
Kuan Dong Hua is a cherished TCM herb known for its ability to moisten the lungs, stop coughs, and clear cold phlegm. It effectively treats cold-related coughs, chronic lung conditions, and bronchitis, with modern research supporting its cough-relieving, anti-inflammatory, and antibacterial properties. As research continues, Kuan Dong Hua’s potential may expand further. To ensure safe and effective use, consult a TCM practitioner for guidance on dosage and preparation.
Chinese Name | 款冬花 |
Chinese Pinyin | Kuandonghua |
English Name | Common Coltsfoot Flower |
Latin Pharmaceutical Name | Farfarae Flos |
Category | Flowers |
Origin | The dried flower bud of Tussilago farfara L.(Asteraceae). |
Production Regions | Primarily produced in the Chinese provinces of Gansu, Shaanxi, Shanxi, Henan. |
Macroscopic Features | Flower bud is rod-like or long elliptical shape, singular or 2~3 in parallel, sometimes has 5 flowers; this is called ‘three linked flowers’. Often 1~3cm long, 0.5~0.8cm diameter. Flower bud and peticel have several layers of pink-purple or pale brown scale-like bracts, which covered with yellowish-brown immature tiny ligulate flowers and tubular flowers similar to purple spider-web. Clear aromatic odor; slightly bitter and acrid taste, cotton-like when chewed. |
Quality Requirements | Superior medicinal material has 2~3 flowers in parallel, large bud, dry body, purple-red color, extremely short pedicel, with no open flowers. |
Properties | Acrid, slightly bitter; warm |
Functions | Transforms phlegm, stops cough, downbears qi, moistens the lung, stops vomiting. Apply to cough, panting, tuberculosis, cough with bloody phlegm. |
Technical Terms | ‘Green skin and red lips’: green skin refers to the lower portion of the rod-shape flower head of kuan dong hua, which has an involucres that appears purplish-red with green. Red lips refer to the ligulate and tubular unopened apex of the kuan dong hua flower, which appears pale red; after opening, it changes to yellow. |
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