✵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:Antiasthmatics Herbs.
Introduction: Antiasthmatics: an agent or substance herbs that relieves cough and asthma(or dyspnea), usually by ventilating, clearing or moistening the lung, or directing lung Qi downward, stringing lung Qi or resolving phlegm.
✵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 Antiasthmatics Herbs are briefly introduced separately:
Fructus Perillae(Perilla Fruit).
Brief Introduction: The Herb Fructus Perillae is the dried ripe fruit of Perilla frutescens(L.)Britt.(family labiatiae), used as an antitussive, antiasthmatic and expectorant for treating chronic bronchitis with thin white phlegm and stuffy feeling in the chest, and also as an aperient for relieving constipation, often simplified as Su Zi.
✵The herb Folium Perillae(Perilla Leaf) is the dried ripe fruit of the Perilla frutescens(L.) Britt., it is a plant of the Perilla L. genus, the Lamiaceae or Labiatae(the mint or deadnettle family) family of the Lamiales order. It is also known as Perilla Leaf or Purple Perilla Leaf.
Common official herbal classics defined the herb Folium Perillae(Perilla Leaf, Zǐ Sū Yè) as the dried ripe fruit of (1). Perilla frutescens (L.)Britt. Other famous herbal classics defined the herb as the dried ripe fruit of species of the same family:(1). Perilla frutescens(L.)Britt., (2). Perilla frutescens (L.) Britt.var.acuta(Thunb.) Kudo. These 2 commonly used species are introduced as:
(1).Perilla frutescens(L.)Britt.: It is also known as Perilla frutescens(L.)Britt.Var.crispa (Thumb.)Hand.-Mand.-Mazz. Herbs annual, 30~200 cm tall. It has a special fragrance. Stem erect, much-branched, purple, greenish-purple or green, obtuse tetraphenous, densely villous. Leaves opposite; Petiole 3~5 cm long, purplish-red or green, covered with long serrate hairs; Leaf blade broadly ovate, round or oval, triangle, oval 4~13 cm long, 2.5~10 cm wide, apex acuminate or acuminate, sometimes in short caudate, base rounded or broadly cuneate, margin coarsely serrate, sometimes serrate deep or shallow crack, two purple or purple below, only both sides were sparse hairs, along the veins of relatively dense, the leaf has a fine point oil glands; Lateral veins 7-8 pairs, lower slightly proximate, obliquely ascending. Inflorescences rosette, 2-flowered to one side into pseudo-racemes, terminal and axillary, inflorescence densely villous; Bracts ovate, ovate-triangular or lanceolate, entire, ciliate, glandular, margin membranous; Pedicels 1~1.5 mm long, densely pilose; Calyx campanulate, ca. 3 mm long, 10 veined, outer densely pilose and with yellow glandular points, apical 5 teeth, 2 lips, upper lip broad, 3 teeth, lower lip 2 teeth, sometimes enlarged, base saccate; Corolla lip, 3~4 mm long, white or purplish red, corolla tube with hair rings, outside pilose, upper lip slightly concave, lower lip 3-lobed, lobes nearly round, middle lobes larger; 4 stamens, 2 strong, inserted in the middle of the corolla tube, scarcely extending out of the corolla, anthers 2-locule; Disk distended anterior; 1 pistil, ovary 4-lobed, style subbasal, stigma 2-locule; Disk distended anterior; Pistil 1, ovary 4-lobed, style basal, stigma 2-lobed. Nutlets subglobose, grayish-brown or brown, 1~1.3 mm in diameter, reticulated, calyx ca. 10 mm. Its flowering period is from June to August, fruiting from July to September.
Ecological environment and Distribution: it grows in mountain, roadside, village edge or wasteland, it is also cultivated. Resource distribution: it is widely cultivated throughout China. It is distributed in east, south, southwest of China and other areas.
Trait identification:the leaves of purple perilla are wrinkled, curly and broken. The whole leaves are oval when flattened, 4~11 cm long and 2.5~9 cm wide. Apex long or acute, base rounded or broadly cuneate, margin rounded serrate. Both surfaces purplish or green on the upper surface, purplish on the lower surface, sparsely grayish hairy, with mostly concave punctate glandular scales on the lower surface. Petiole 2~5 cm long, purple or purplish green. Very brittle. Stagnant twigs, 2~5 mm in diameter, purple-green, midsection pith. It is fresh and slightly pungent. With leaves intact, the color purple, the aroma is good.
(2).Perilla frutescens (L.) Britt.var.acuta(Thunb.) Kudo.: It is also known as wild perilla. This variety is distinguished from perilla by the fact that the calyx is small, 4~5.5 mm long, sparsely pilose below, glandular; Stem pubescent; Leaves smaller, ovate, 4.5~7.5 cm long, 2.8~5 cm wide, sparsely pilose on both sides. Nuts small, 1~1.5 mm in diameter. It is flowering from June to August, fruiting from July to September.
Trait identification: the whole leaves of the wild purple perilla are oval after flattening, 4~7 cm long and 2.5~5 cm wide. Leaves green, dark green or purplish on both surfaces, margin rounded serrate. With leaves intact, the color purple, the aroma is good.