✵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.
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.
✵Till the date Oct 10th,2019, there are totally  kinds of common TCM herbs,  kinds of related plant species, are recorded in this category. These expectorants, herbs for resolving cold-phlegm are briefly introduced separately:
Radix Platycoli(Platycodon Root).
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.
✵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.
Platycodon grandiflorus(Jacq.)A.DC.: 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.