✵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:Dispelling Wind-Damp Herbs.
Introduction: Dispelling Wind-Damp Herbs: an agent or substance herbs that dispels wind and damp, mainly for relieving rheumatism and related conditions.
✵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 dispelling wind-damp herbs are briefly introduced separately:
Caulis Trachelospermi(Chinese Starjasmine Stem).
Brief Introduction: The herb Caulis Trachelospermi is the dried stem with the leaf of Trachelospermum jasminoides(Lindl.) Lem.(family Apocynaceae), used to dispel wind-damp, unblock the meridians, cool the blood and reduce swelling in the treatment of rheumatalgia of the joints with muscular contracture, as well as a sore throat. The herb is commonly known as Caulis Trachelospermi, Chinese Starjasmine Stem, Luò Shí Ténɡ.
✵Famous herbal classics defined the herb Caulis Trachelospermi(Chinese Starjasmine Stem) as the dried stem with the leaf of (1). Trachelospermum jasminoides (Lindl.) Lem. It is a plant of the Trachelospermum Lem. Genus, Apocynaceae family, Gentianales order. This commonly used species is introduced as:
(1).Trachelospermum jasminoides (Lindl.)Lem.: It is commonly known as Luò Shí or Chinese Starjasmine, the herb is commonly known as Luò Shí Ténɡ or Chinese Starjasmine Stem. Evergreen woody vine, up to 10 meters long, with milk; Stem russet, cylindrical, lenticellate; Branchlets yellow pilose, becoming glabrous when old. Leaves leathery or subleathery, elliptic to ovate-elliptic or broadly obovate, 2~10 cm long, 1~4.5 cm wide, apex acute to acuminate or obtuse, sometimes concave or slightly convex, base attenuate to obtuse, leaf surface glabrous, leaf back sparsely pubescent, old decaying glabrous; Middle veins slightly concave, lateral veins flat, midrib convex, lateral veins 6~12 on each side, flat or slightly convex; Petiole short, pubescent, decaying glabrous; Petiole and leaf axillary glands subulate, ca. 1 mm long.
Dichasial cymes axillary or terminal, many flowers conical, as long as the leaves or longer; The flowers are white and fragrant; Pedicels 2~5 cm long, pilose, glabrous when old; Bracts and bracteoles narrowly lanceolate, 1~2 mm long; Calyx 5-lobed, lobes linear-lanceolate, apically reflexed, 2~5 mm long, outside villous and margin hairy, inside glabrous, base with 10 scaly glands; Flower bud tip obtuse, corolla tube cylindrical, middle swollen, outer glabrous, inner surface pubescent at throat and stamen apex, 5~10 mm long, corolla segments 5~10 mm long, glabrous; Stamens inserted in middle of corolla tube, abdomen adherent to stigma, anthers arrowhead, base with ear, hidden in flower throat; Disc annular 5-lobed as long as ovary; Ovary composed of 2 free carpels, glabrous, style terete, stigma ovoid, apex entire; Each carpel has more than one ovule, resting on two simultaneous lateral membranes.
Follicles double, forked, glabrous, linear-lanceolate, apex acuminate, 10~20 cm long, 3~10 mm wide; Seeds numerous, brown, linear, 1.5~2 cm long, ca. 2 mm in diameter, apex with white silk seed hairs; The coat is 1.5~3 cm long. Its flowering period is from March to July, fruiting from July to December.
Ecological Environment: The plant grows and is often found in mountains, streams, roadsides, forest edges, or miscellaneous woods. It is often found on trees, walls, rocks, or gardens. It is native to the south of the Yellow River basin in China. The adaptability to climate is strong, able to withstand cold, also resistant to heat, but avoid cold. As a result, in the North China area, it can not pass the winter in the open ground, appropriately make potted only, should be moved indoors in winter. The plant is resistant to drought. In the south area of China, it can safely pass summer in open land. Like a wet environment, avoid dry wind attacks. The plant prefers weak light, also bear scorching sun and high temperature. The plant climbs the wall, it grows on both the sunny side and the gloomy side. It is suitable for light clay and sandy loam with moderate fertility. It can grow in both acid soil and alkaline soil.
This species widely distributes in the lower reaches area of the Yangtze River, Zhujiang river area, southwest area, Hanjiang river area, and other areas of China. The plant also distributes in other areas of Asia.
Trait identification: Stem cylindrical, much-branched, 0.2~1 cm in diameter; Surface reddish-brown, with punctate lenticels and adventitious roots; The quality is hard, broken face fiber shape, yellow-white, sometimes hollow. Leaves opposite, stipitate, complete leaf blade elliptic or ovoid elliptic, 2~10 cm long, 0.8~3.5 cm wide, apex acuminate or obtuse, sometimes concave, leaf margin slightly reflexed, upper surface yellowish green, lower surface shallower, veins feathery, lower surface clear, slightly convex; Leathery, white woolly silk visible when broken. Slight smell, slightly bitter taste. The herb with many leaves, the color green is better.