✵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 Clearing Heat and Purging Fire.
Introduction: Herbs Clearing Heat and Purging Fire: an agent or substance that has the effect of clearing heat from the Qi system, with high fever, dire thirst, dry yellow tongue coating and rapid surging pulse, or purging fire from the internal viscera, such as heart fire, liver fire, etc.
✵Till the date Oct 10th,2019, there are totally  kinds of common TCM herbs,  kinds of related plant species,  kind of related minerals, are recorded in this category. These Herbs Clearing Heat and Purging Fire are briefly introduced separately:
Semen Cassiae(Cassia Seed).
Brief Introduction: The herb Semen Cassiae is the dried ripe seed of Cassia obtusifolia L., or Cassia tora L.(family Leguminosae), used (1).to clear the liver and brighten the eyes for treating acute inflammation of the eye, (2).to moisten the intestines for relieving constipation, and (3).nowadays for reducing high blood pressure and blood cholesterol. The herb is commonly known as Semen Cassiae, Cassia Seed, Jué Mínɡ Zǐ.
✵The herb Semen Cassiae(Cassia Seed) is the dried ripe seed of Cassia obtusifolia L. or Cassia tora L., they are plants of the Senna genus, the Fabaceae(Leguminosae) family of the Fabales order.
(1).Cassia obtusifolia L.: The Cassia obtusifolia L., is a plant of the Fabaceae(Leguminosae) family and Senna genus, it is commonly known as "Jue Ming", annual shrubs herbaceous, erect, stout, 1~2 meters high. Leaf length 4~8 cm; petiole without glands; 1 leaf blade on each leaflet between the rod-shaped glands; 3 pairs of leaflets, membranous, obovate or obovate-oblong, 2~6 cm long, 1.5~2.5 cm wide, apically rounded and pointed, base attenuate, obliquely sparsely pilose above, below pilose; pedicel 1.5~2 mm long; stipules linear, pilose, Early fall. Flowers axillary, usually 2 polygamy; total pedicel 6~10 mm long; pedicel 1~1.5 cm long, filamentous; sepals slightly unequal, ovate or ovate-oblong, membranous, outside pilose, about 8 mm long; petals yellow, the following two slightly longer, 12~15 mm long, 5~7 mm wide; 7 fertile stamens, anther tetragonal, apical hole cracking, ca. 4 mm, filaments shorter than anthers; Ovary sessile, white pilose. Pods slender, nearly four prismatic, acuminate at both ends, up to 15 cm, 3~4 mm wide, membranous; about 25 seeds, diamond-shaped, bright. It is flowering and fruiting from August to November.
(2).Cassia tora L.: The Cassia tora L., is a plant of the Fabaceae(Leguminosae) family and Senna genus, it is commonly known as "Xiao Jue Ming", annual shrub herb, high 1~2 meters. Leaves alternate, pinnate; petiole glands, there are 1 rod-shaped glands between the two leaflets on the leaf shaft; 3 pairs of leaflets, membranous; petiole 1.5~2 mm; stipules linear, pubescent. Early fall; leaf blade obovate or obovate-long oblong, 2~6 cm long, 1.5~2.5 cm wide, apex obtuse and slightly pointed, base attenuate, oblique, sparsely pubescent above, below soft hair. Flowers usually 2 grows in leaf axils; total pedicels 6~10 mm long; pedicels long 1~1.5 cm; 5 sepals, slightly unequal, ovate or ovate-oblong, membranous, outer pilose, about 8 mm Flowers yellow, 5 petals, the following two slightly longer, 12~15 mm long, 5-7 mm wide; 10 stamens, 7 fertile stamens; ovary linear, sessile, white hairs, style curved. Fruit slender, nearly flat, curved arch, length 15~24 cm, diameter 4~6 mm, was thin pubescent. Most seeds, rhombus, gray-green, shiny. Its flowering period is from June to August, fruiting from September to October.