Introduction of Ju Geng:Platycodon Root or Radix Platycoli.

TCM Herbalism:Medicinals and Classifications. ✵The TCM herbalism is also known as pharmaceutics of Traditional Chinese Medicine, or Chinese pharmaceutics, is the branch of health science dealing with the preparation, dispensing, and proper utilization of Chinese herbs. It is majorly composed of Introduction of Chinese Medicinals, Classification of Chinese Herbs, Formulas, and Patent medicines.

Classifications of Herbs:expectorants,herbs for resolving cold-phlegm.

 TCM Herbs Icon03 Introduction: Expectorants,herbs for resolving cold-phlegm: an agent or substance herbs warm in property, used in treating disorders of cold-phlegm or phlegm-dampness.

 
Radix Platycoli(Platycodon Root).

Platycodon grandiflorum Pin Yin Name: Jú Gěnɡ.
 English Name: Platycodon Root.
 Latin Name: Radix Platycoli.
 Property and flavor: plain, pungent, bitter.

 Brief introduction: The herb Radix Platycoli is the dried root of Platycodon grandiflorum(Jacq.) A.DC.(family Campanulaceae), used to resolve phlegm, soothe the throat and evacuate pus for treating cough with much phlegm, lung abscess with purulent expectoration, painful swelling of the throat and hoarse voice. The herb is commonly known as Radix Platycoli, Platycodon Root, Jú Gěnɡ.

 Botanical source: The herb Radix Platycoli(Platycodon Root) is the dried root of Platycodon grandiflorus(Jacq.) A.DC., it is a plant of the Platycodon genus, the Campanulaceae(bellflower family) of the Asterales order.

(1).Platycodon grandiflorus(Jacq.)A.DC.


 Platycodon grandiflorus Jacq.A.DC. Botanical description: The Platycodon grandiflorus(Jacq.) A.DC., is a plant of the Fabaceae(Leguminosae) family and Astragalus L genus, perennial herb, 30~90 cm tall, smooth and glabrous. Root succulent, cylindrical, or branched. Stems erect, simple or branched. Leaves nearly sessile, grow on the stem, lower leaves opposite or 3 to 4 whorled, upper leaves sometimes alternate; leaf blade ovate-lanceolate, 3~6 cm long, 1~2.5 cm wide, tip, base wedge or near-circular, serrated edge. Flowers solitary on stem apex, or several sparse inflorescence racemes; calyx campanulate, apex 5-lobed; corolla campanulate, bluish-purple, 3~5 cm in diameter, 5-lobed, lobes triangular; 5 stamens, filaments short and the base enlarges, the anthers revolve around the style; the ovary half lower, 5 rooms, stigma 5-lobed, recurved, villous. Capsule obovate, 5 valves cleft at maturity. Seeds ovate, 3-sided. Its flowering period is from July to September, fruiting from August to October.

 Growth characteristics: The plant grows wild in the grass on the hillside. It prefers a cool climate, cold tolerance, prefers sunshine. It should be cultivated in hilly areas at an altitude below 1100 meters above sea level. It grows well in sandy loam with half shade and half sunshine, neutral sandy soil rich in phosphorus and potash fertilizer. The seed life is 1 year, and storage at low temperatures can extend the life of seeds.

 Characters of herbs: The herb roots are cylindrical or spindle-shaped, tapering at the lower part, sometimes branched, 6~20 cm long, 1~2 cm in diameter. The surface is yellowish-white, slightly lustrous, corrugate, have twisted longitudinal furrows, and have transverse skin holes mark and branch root mark, sometimes can see the yellow-brown or gray-brown cork without scraping; The rhizome of the upper end (reed) is 0.5~4 cm long, about 1 cm in diameter, with a half-moon shaped stem trace, discoid. The texture is hard and brittle, easy to be broken, the fracture surface is slightly uneven, radial cracks are visible, the cortex is off-white, the cambium ring brown, the wood part is light yellow. The flavor is slightly sweet and bitter. The root which is hypertrophy, white, rich quality, the bitter taste is preferred.

 Pharmacological actions: ①.Expectorant effect; ②.Other effects: reduce blood glucose, significant effect on diabetes in rabbits caused by alloxan.

 Medicinal efficacy: Open the inhibited lung-energy, relieve sore throat, eliminating phlegm, apocenosis, indicated for a cough with much phlegm, choking sensation in the chest and not comfortable, swelling and pain in the throat, bronchitis, pulmonary abscess, pleurisy, etc.

 Administration of Radix Platycoli(Jú Gěnɡ): 
 
Reference: Administration Guide of Radix Platycoli(Jú Gěnɡ)
TCM Books: Internally:3~9 grams(CP) or 1~2 qian(about 3~6 grams,DCTM),or 3~10 grams(CHMM),water decoction; grinded to fine powder and prepared to pill, powder.Externally:proper amount, burn to ashes and grinded into powder, apply stick.

 
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References:
  • 1.Introduction of Ju Geng:Platycodon Root or Radix Platycoli.
  • 2.TCM Books:DCTM(Dictionary of the Chinese Traditional Medicine),CHMM(Chinese Herbal Materia Medica).

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