✵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:Expectorants,Herbs for Resolving Heat-Phlegm.
Introduction: Expectorants,herbs for resolving heat-phlegm: an agent or substance herbs warm in property, used in treating disorders of heat-phlegm or phlegm-dampness.
✵Till the date Oct 10th,2019, there are totally  kinds of common TCM herbs,  kinds of related plant species, kind of mineral, are recorded in this category. These expectorants, herbs for resolving heat-phlegm are briefly introduced separately:
Pseudobulbus Cremastrae seu Pleiones.
Brief Introduction: The herb Pseudobulbus Cremastrae seu Pleiones is the dried ripe pseudobulb of Cremastra appendiculata(D.Don) Makino, Pleione bulbocodioides(Franch.) Rolfe, or Pleione yunnanensis Rolfe(family Orchidaceae), used to clear heat for the treatment of boils, sores, scrofula, and snake bite. Also known as Appendiculate Cremasra Pseudobulb, or Common Pleiorre Pseudobulb.
✵The herb Pseudobulbus Cremastrae seu Pleiones is the dried ripe pseudobulb of Cremastra appendiculata(D.Don) Makino, Pleione bulbocodioides(Franch.) Rolfe, or Pleione yunnanensis Rolfe, they are plants of the Cremastra Lindl. genus, the Orchidaceae family of the Microspermae order. It is also known as Pseudobulb of Appendiculate Cremastra or Shān Cí Gu.
Common official herbal classics and other famous herbal classics defined the herb Pseudobulbus Cremastrae seu Pleiones as the dried ripe pseudobulb of:(1). Cremastra appendiculata (D.Don) Makino., (2). Pleione bulbocodioides(Franch.) Rolfe., (3). Pleione yunnanensis Rolfe. These 3 commonly used species are introduced as:
(1).Cremastra appendiculata (D.Don)Makino.: It is also known as Du Juan Lan. A terrestrial plant. Pseudobulb aggregated, subglobose, 1~3 cm thick. Terminal 1 leaf, rarely with 2 leaves; Leaf blade elliptic, 45 cm long, 4~8 cm wide, apex acute, base narrowed into sessile. Scape apical to pseudobulb, erect, stout, usually above leaves, sparsely 2 tubular sheaths; Racemes sparsely numerous flowers; Flowers to one side, purplish-red; Bracts narrowly lanceolate, equal to or shorter than pedicels (ovary); Tepals tubular, apex slightly spreading; Sepals and petals nearly equal, oblanceolate, about 3.5 cm long, middle-upper ca. 4 mm wide, apex acute; Lower sepal subspatulate, subequal with sepals, basally shallow saccate, margin slightly reflexed upward on both sides, front end enlarged and 3-lobed, lateral lobes narrow, middle lobed oblong, base with an appressed or more detached appendage; Stamens are slender, slightly shorter than sepals. Its flowering period is from June to August.
Ecological environment: The plant grows in damp places on hillsides and under forests. It mainly distributes in the south of the Yangtze river basin, the northwest area, and other areas of China.
Trait identification: Dried pseudobulb of rhododendron is round or slightly flat, pointed, 1~2 cm in diameter, brownish or grayish-brown in appearance, with small wrinkles. A circular pedicle at the top; There are fibrous roots in the depression at the bottom, which are about 1~3 cm long and 1~2 mm thick. A concave or raised part of the waist, commonly known as a belt. Pseudobulb peripherally covered with either sparse or dense golden filamentous hairs and black fine whiskers. Or the root and skin have been removed. Quality is solid, core part is yellow-white or black, rough. Light, slightly fragrant, sticky in water. The herb which is big, full, cross-section yellow and white, solid, quality is good.
(2).Pleione bulbocodioides(Franch.)Rolfe.: It is also known as Du Suan Lan. Perennial herbs of bottle shape single garlic orchid. Pseudobulb nearly flask-shaped, 0.5~3 cm long, base 5~15 mm wide, fleshy, greenish-white with pink appearance, inner surface white, mucous, the lower part of most gray fibrous roots. Each early spring from the lower side of the false bulb, small false bulb, often several crosses into a string. 1 leaf, apex on pseudobulb, long lanceolate or elliptic, usually 8~10 cm long or longer, 3~5 cm wide or up to 6 cm, apex acuminate, base sheath clasped. Summer leaves blossom (concomitant), scape on top of pseudobulb, erect; 1 flowers, drooping, peach pink, 3~4 cm long; Petals and dorsal sepals' apex acute, anterior margin of lower sepal fringed, between 3~5 (rarely 2) wavy or flat folds, apex subtruncated, sometimes concave; The ovary is shorter than the flower. Capsule is cylindrical, arrowed.
Ecological environment: The plant grows under the hillside forest and rocks; It mainly distributes in the east, south, southwest, and northwest, the middle reaches of the Yangtze River, and other areas of China.
Trait identification: the dried pseudo bulb of cymbidium oleracea is spherical or irregular, 1~1.5 cm in diameter, tip gradually protruding, base umbilical, fibrous root or fibrous root trace. Belt often is in concave enter a part, the reason is not very apparent, hit the surface that goes cuticle to show yellow-white, buff or grayish-yellow, contain cuticle person to show shallow brown or brown, smooth, or have furrow and a deep ditch. Quality is hard, hard to break, section cutin translucent. Weak odor, taste light slightly bitter, slightly sticky. In addition to the above species, there are also the false bulbs of Pleioneyunnanensis (Rolfe) Rolfe and Oreorchispatens (Lindl.) Lindl.
(3).Pleione yunnanensis Rolfe.: It is also known as Yunan Du Suan Lan. The difference between the two species lies in the difference between flower and leaf (flower and leaf open first). Leaves 1, mature leaves are less than 3 cm wide. Labial triangular-obovate of the flower, have 4~5 in the middle show undulate or flat plait, the ovary is equal length or longer than the flower.
Ecological environment: The plant grows under the forest of a seam or on the earthy stone wall beside the ravines. It mainly distributes in the east, central and southern areas, southwest and northwest, and other areas of China.