Introduction of Ju Geng:Platycodon Root or Radix Platycoli.

TCM Herbalism:Medicinals and Classifications. ✵The article gives records of the herb Platycodon Root, its English name, Latin name, property and flavor, its botanical source one plant species, ①.Platycodon grandiflorus(Jacq.) A.DC., with a detailed introduction to the botanical features of this plant species, the growth characteristics, and ecological environment of this plant species, the features of the herb Platycodon Root, its pharmacological actions, medicinal efficacy, and administration guide.

Radix Platycoli(Platycodon Root).

Platycodon grandiflorum:flowering plant Pin Yin Name: Jú Gěnɡ.
 English Name: Platycodon Root.
 Latin Name: Radix Platycoli.
 Property and flavor: neutral in nature, 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.:flowering plant 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.

 Platycodon Root:herb photo Characters of herbs: The root is cylindrical or slightly spindle-shaped, the lower part is tapered, some of which are branched and slightly twisted, with a length of 6~20 cm and a diameter of 0.7~2 cm. The surface is light yellowish white to yellow, slightly shiny and shriveled. If the cortex is not removed, the surface is yellowish brown to grayish brown, with twisted longitudinal grooves, transverse lenticels and root marks, horizontal stripes on the upper part, and sometimes there is yellowish brown or grayish brown cork bark that have not been scraped; Some have short rhizomes at the top or inconspicuous, and the upper rhizomes (reed heads) are 0.5~4 cm long and about 1 cm in diameter, with half-moon shaped stem marks, which are in the shape of disks. The texture of the herb is hard and brittle, easy to break, the fracture surface is slightly uneven, there are visible radial cracks, the cortex is off-white or yellowish white, the cambium ring is brown, the wood part is light yellow. The herb has a slight taste, tastes slightly sweet and bitter. The herb which has fat, white roots, the texture is full and firm, bitter taste is better.

 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: ①.Internally:3~9 grams;②.1~2 qian(about 3~6 grams);③.3~10 grams,water decoction; prepare to finely ground herb powder and prepared to pill, powder.Externally:proper amount, burn to ashes and prepare to ground herb powder, apply stick.

expectorants,herbs for resolving cold-phlegm.

 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.
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