✵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:Herbs regulating the flow of Qi.
Introduction: Herbs regulating the flow of Qi: also known as Qi-regulating herbs, an agent or substance that regulates the activity of Qi to treat Qi stagnation or adverse Qi flow, also known as Qi-moving herbs.
✵Till the date March 19th, 2020, there are totally  kinds of common TCM herbs,  kinds of related plant species,  kind of related insect species, are recorded in this category. These herbs regulating the flow of Qi are briefly introduced separately:
Radix Linderae(Combined Spicebush Root).
Brief Introduction: The herb Radix Linderae is the dried tuberous root of Lindera aggregata(Sims) Kosterm. (family Lauraceae), used to move Qi, alleviate pain, warm the kidney and dispel cold for relieving distension and pain in the lower abdomen, frequent micturition, and enuresis. The herb is commonly known as Radix Linderae, Combined Spicebush Root, Wū Yào.
✵Official herbal classics and other famous herbal classics defined the herb Radix Linderae(Combined Spicebush Root) as the dried tuberous root of the species (1).Lindera aggregata(Sims) Kosterm. It is a plant of the Lindera Thunb. Genus, the Lauraceae family of the Ranales order. This commonly used species is introduced as:
(1).Lindera aggregata(Sims)Kosterm.: The plant is commonly known as Wū Yào. Herbs, evergreen shrubs or small trees, it grows up to 4~5 meters high. The root is woody, swollen stout, slightly rosary. The bark is grayish-green. Branchlets densely rust-colored pubescent when young, smooth glabrous when old; Stem and branch are tough, not easy to break. Alternate, leathery, elliptic to broadly obovate, 3~8 cm long, 1.5~5 cm wide, apex acuminate or caudate acuminate, the base is rounded or broadly cuneate, entire, the upper part is green, glossy, glabrous except for midrib, lower part is pale, covered with pale brown villous, later becoming smooth, 3 veins, basal, very distinct; Petiole is short, pubescent. Inflorescence umbellate axillary, scarcely scabellate; Pedicel is 1.5~3 mm long, hairy, clustered with many florets; Flowers are unisexual, dioecious, yellow-green; Perianth is composed of 6 pieces, the size is a few equal, wide elliptic, male flower has 9 stamens, arrange 3 round, the base of the innermost round has gland, anther 2 room; Female flowers have several stamens, ovary superior, spherical, 1 loculus, 1 ovule. Drupes are subglobose, green at first, black when ripe. Its flowering period is from March to April, fruiting from October to November.
Ecological environment: The plant grows in the shrubbery of the slope facing the sun or the forest margin and the piedmont, the field, and so on. It distributes in the middle and lower reaches areas of the Yangtze River, the west of Zhujiang river area, southwest, northwest, Taiwan, and other areas of China.
Biological characteristics: The plant prefers subtropical climate, strong adaptability. It is advisable to cultivate in acid soil with abundant sunshine and loose and fertile soil.
Trait identification: The root is spindle-shaped or round, slightly curved, and some of the middle parts contract in a conjoined shape, 5~15 cm long, 1~3 cm in diameter. The surface is yellowish-brown or grayish brown, with fine longitudinal wrinkles and sparse fine root marks. Extremely hard, not easy to break, the cross-section is yellow and white. Odor fragrant, taste slightly bitter, spicy, a cool feeling. The tablet is a cross-cut circular slice, 1~5 mm thick, or thinner, yellow-white to light-tan and reddish, with radial grain and rings. Very brittle. The herb which is big, fat, tender, and the fragrant broken surface is better. The herb which is old, fusiform taproots not used for medicinal purposes.