✵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:Pungent-cool Exterior-releasing Herbs.
Introduction: Pungent-cool Exterior-releasing Herbs: an agent or substance herbs pungent in flavor and cool in property, which is usually used for treating a wind-heat exterior syndrome.
✵Till the date Oct 10th,2019, there are Totally  kinds of common TCM herbs,  kinds of related plant species,  kind of insect species, are recorded in this category. These Pungent-cool Exterior-releasing Herbs are briefly introduced separately:
Radix Dichroae(Antifeverile Dichroa Root).
Brief Introduction: The Herb Radix Dichroae is the dried root of Dichroa febrifuga Lour.(family Saxifragaceae), used for the treatment of malaria.
✵The herb Radix Dichroae(Antifeverile Dichroa Root) is the dried root of Dichroa febrifuga Lour., it is a plant of the Dichroa L. genus, the Saxifragaceae family of the Rose order. It is also known as Radix Dichroae, Antifeverile Dichroa Root, Chánɡ Shān.
Common official herbal classics and other famous herbal classics defined the herb Radix Dichroae(Antifeverile Dichroa Root) as the dried root of (1). Dichroa febrifuga Lour. This commonly used species is introduced as:
(1).Dichroa febrifuga Lour.: It is commonly known as Antifeverile Dichroa. Shrubby, 1~2 meters high. Branchlets green, often purplish, glabrous, or thinly puberulent. Leaves opposite; Petiole length 1.5~2 cm; Leaves vary widely, usually elliptic, oblong, obovate-elliptic, sparse lanceolate, 5~10 cm long, 3~6 cm wide, apex acuminate, base cuneate, margin densely serrate or serrate; The middle veins are concave above, and the side veins arch upward. Corymbals conical; Terminal, stem; Flowers blue or bluish-purple; Calyx obconical, 4~7 calyx teeth; 4~7 petals, subsucculent, reflexed; 10~20 stamens, half opposite petals, filaments flattened; Ovary inferior, 4~6 styles, initial base connate. Berry blue, with many seeds. Its flowering period is from June to July, fruiting from August to October.
Ecological environment: grow on forest margins, gully sides, moist mountain areas at altitudes of 500-1,200 meters. Resource distribution: Guangdong, Guangxi, Gansu, Hubei, Jiangxi, Guizhou, Shaanxi, Sichuan, Yunnan, Xizang, Taiwan and other areas.
Trait Identification: dry root cylindrical, often divergent, torsional, 9~15 cm long, about 0.5~2 cm in diameter. The surface is yellowish-brown with obvious fine longitudinal lines and root traces. The cork is easy to peel off, showing pale yellow xylem. It is hard, and when it breaks, it flies away. Yellow-white cross-section, wate-wet visible obvious white-like rays, radial arrangement. Rhizomes are cylindrical and submassive. The cross-section is identical to that of the root except for the central medulla. Weak smells, bitter taste. With qualitative firm and heavy, the shape is like a chicken bone, the surface and section are flaxen, smooth is better in quality, the root is thick and long straight, qualitative pine, color is dark yellow, without bitter taste cannot be used as herbal medicine.