✵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 Aristolochiae(Dutchmanspipe Fruit).
Brief Introduction: The herb Fructus Aristolochiae is the dried ripe fruit of Aristolochia contorta Bge. , or Aristolochia debilis Sieb. et Zucc.(family Aristolochiaceae), used to clear the lung and resolve phlegm for relieving cough and dyspnea due to heat in the lung, and also to remove heat from the large intestine for treating hemorrhoids. The herb is commonly known as Fructus Aristolochiae, Dutchmanspipe Fruit, Mǎ Dōu Líng.
✵The herb Fructus Aristolochiae(Dutchmanspipe Fruit) is the dried ripe fruit of the Aristolochia debilis Sieb. et Zucc, it is a plant of the Aristolochia genus, the Aristolochiaceae family of the Aristolochiales order. It is also known as Aristolochia debilis Sieb. et Zucc., Dutchmanspipe Fruit, Mǎ Dōu Líng. This commonly used species is introduced as:
(1).Aristolochia debilis Sieb. et Zucc.: Grass vine. Root cylindrical. Stem weak, glabrous. Leaves alternate; Petiole are 1~2 cm long, effeminate; Leaf blade ovate-triangular, oblong-ovate or halberd, 3~6 cm long, base is 1.5~3.5 cm wide, apex obtuse or shortly acuminate, base cordate, lobes rounded on both sides, pendulous or slightly extended; 5~7 basal veins, all levels of veins evident on both sides. Flowers solitary or 2 clustered in leaf axils; Pedicels are 1~1.5 cm long; Bracteoles triangular, easily detached; Perianth 3-5.5 cm long, base bulged globose, narrow into a long tube, tube mouth expanded into a funnel, yellowish-green, mouth purple spots, inside glandular hair; Eaves extremely short on one side, the other side gradually extended into a tongue; Tongue ovate-lanceolate, apex obtuse; Anthers adnate near base of stamen column; Room cylindrical, 6 edges; Pistil apex 6-lobed, slightly papillary convex, lobes apex obtuse, extending downward to form undulate ring. Capsule subglobose, apex rounded and concave, with 6 ribs, dehiscent from base to space 6 valves upward at maturity. Pedicels are 2.5~5 cm long. Seeds flat, obtusely triangular, margin with white membranous broad wings. Its flowering period is from July to August, fruiting from September to October.
Ecological environment: It grows in valleys, ditches, wet places on roadsides and thickets on hillsides at an elevation of 200~1,500 meters. It prefers light, slightly shade, sand-like yellow soil, cold. Adaptable. It is distributed in the south of the Yellow River to the south of the Yangtze River.