Introduction of Kuan Dong Hua:Flos Farfarae or Common Coltsfoot Flower.

TCM Herbalism:Medicinals and Classifications. ✵The article gives records of the herb Common Coltsfoot Flower, its English name, Latin name, property and flavor, its botanical source one plant species, ①.Tussilago farfara L., with a detailed introduction to the botanical features of this plant, the growth characteristics, and ecological environment of this plant, the features of the herb Common Coltsfoot Flower, its pharmacological actions, medicinal efficacy, and administration guide.

Flos Farfarae(Common Coltsfoot Flower).

Tussilago farfara:flowering plant 01 Pin Yin Name: Kuǎn Dōnɡ Huā.
 English Name: Common Coltsfoot Flower.
 Latin Name: Flos Farfarae.
 Property and flavor: warm, pungent, slight bitter.

 Brief introduction: The herb Flos Farfarae is the dried flower-bud of Tussilago farfara L., used for treating a chronic cough with profuse expectoration and hemoptysis in consumptive diseases.

 Botanical source: The herb Flos Farfarae (Common Coltsfoot Flower) is the dried flower-bud of Tussilago farfara L., it is a plant of the Tussilago L. genus, the Asteraceae family (Compositae, daisy family) of the Campanulales order. It is also known as Common Coltsfoot Flower, Kuǎn Dōnɡ Huā.

 Herbal classic book defined the herb Flos Farfarae (Common Coltsfoot Flower) as the dried flower-bud of:(1). Tussilago farfara L. This commonly used species is introduced:

(1).Tussilago farfara L.


 Tussilago farfara L.:flowering plant 02 Botanical description: It is also known as Common Coltsfoot Flower. Herbs perennial. Rhizome brown, horizontal underground. Leaves grow from roots after flowering; Leaf blade is broadly cordate or reniform, 3~12 cm long, 4~14 cm wide, apex rounded or obtuse, margin undulate tip thickened black-brown sparsely toothed, with arachnoid hair at upper part, white felted hair at lower part; Palmate reticulate veins, 5~9 main veins, petiole 5~19 cm long, covered with white woolly hairs. Between winter and spring, several stalks are drawn, 5~10 cm high, covered with white fuzz; Bracts are elliptic, lavender-brown, more than 10, closely interspersed on scape; Inflorescence is terminal, bright yellow, pendulous when not bloom; Involucre campanulate; Involucral bracts have 1~2 layers, tomentose; Margin ligulate flower, female, multilayer, ovary is inferior, stigma 2-lobed; Central tubular flowers, bisexual, apex 5-lobed, 5 stamens, anthers base caudate, stigma, usually 1-fertile. Achene is oblong, 5~10 rows, crested yellowish. It is flowering from January to February, fruiting in April.

 Tussilago farfara L.:flowering plant 03 Ecological environment: The plant grows on both sides of the gully with warmer sunny. Resource distribution: The plant is mainly distributed in north, northwest area, Jiangxi, Hubei, and other areas of China.

 Growth characteristics: The plant is cultivated or grows in the wild field along rivers or sandy land. It is mainly distributed in the north, the middle reaches of the Yellow River, northwest, southwest areas of China.

 Tussilago farfara L.:herb photo Characters of herbs: The capitulum (flower head) not bloomed is irregular short rod-shaped, solitary or 2~3 inflorescences are connected at the base, commonly known as "three connected flowers", 1~2.5 cm long. The upper end is thicker, the lower end is tapered or with short stalks, and there are many fish-scale bracts outside; The outer surface of bracts is reddish purple (reddish violet) or reddish, and the inner surface is densely covered with white flocculent hairs. The herb is light in weight. After tearing, white filamentous wool can be seen; The tongue-shaped flowers and tubular flowers are small and about 2 mm long. The herb smells fragrant, tastes slightly bitter, pungent, with viscosity; Chewing a while the herb turns to the form of wadding. The herb of better grade is big, fat, purple and with short pedicle (stalk). The flower which has woody old stalk and already bloomed are not suitable for medicinal use.

 Pharmacological actions: ①.Effect on respiratory system; ②.Effect on the circulatory system.

 Medicinal efficacy: Moistening lung to lower Qi, relieving cough, and reducing sputum, indicated for dyspnea and cough with excessive sputum, over-strained cough and hemoptysis (coughing blood), etc.

 Administration of Flos Farfarae (Kuǎn Dōnɡ Huā): 
 
Reference: Administration Guide of Flos Farfarae (Kuǎn Dōnɡ Huā)
TCM Books: ①.Internally:5~9 grams; ②.0.5~3 qian (about 1.5~9 grams); ③.3~10 grams, water decoction; Prepare to paste or prepare to finely ground herb powder and prepared to pill, powder. Externally: proper amount, prepare to finely ground herb powder and apply stick.

 
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References:
  • 1.Introduction of Kuan Dong Hua:Flos Farfarae or Common Coltsfoot Flower.

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