Cortex Periplocae(Chinese Silkvine Bark).

TCM Herbalism:Medicinals and Classifications. ✵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:Dispelling Wind-Damp Herbs.

 TCM Herbs Icon06 Introduction: Dispelling Wind-Damp Herbs: an agent or substance herbs that dispels wind and damp, mainly for relieving rheumatism and related conditions.

Classifications of Herbs.

 TCM Herbs Icon 05 Introduction: The Dispelling Wind-Damp Herbs are known including:, , , , , , , , , , , , , , , , , , , , , .

 ✵Till the date Oct 10th,2019, there are totally [22] kinds of common TCM herbs, [47] kinds of related plant species, are recorded in this category. These dispelling wind-damp herbs are briefly introduced separately:

Cortex Periplocae(Chinese Silkvine Bark).

 Cortex Periplocae Brief Introduction: The herb Cortex Periplocae is the dried root-bark of Periploca sepium Bge.(family Asclepiadaceae), used to dispel wind-damp in cases of rheumatic arthritis, and induce diuresis for edema. The herb is commonly known as Cortex Periplocae, Chinese Silkvine Bark, Xiānɡ Jiā Pí.

 ✵Official herbal classics and other famous herbal classics defined the herb Cortex Periplocae(Chinese Silkvine Bark) as the dried root-bark of (1). Periploca sepium Bge. It is a plant of the Periploca genus, the Asclepiadaceae family, Contortae order. This commonly used species is introduced as:

 Periploca sepium Bge. (1).Periploca sepium Bge.:  It is commonly known as Gāng liǔ. Deciduous shrubs, up to 1.5 meters long. Taproots terete, rind grayish brown, endothelium pale yellow. With milk, glabrous except for flowers; Stem bark grayish brown; Branchlets usually opposite, pinstriped, lenticellate. Leaves ovate-oblong, 5~9 cm long, 1.5~2.5 cm wide, apex acuminate, base cuneate, dark green, back pale green; Midrib flat on the leaf surface, slightly convex on back, lateral veins fine, flat on both sides, 20~25 lines on each side; Petiole ca. 3 mm.

 Periploca sepium Bge. Cymes axillary, with several flowers; Peduncle and pedicels effeminate; Calyx lobes ovoid, 3 mm long, 2 mm wide, apex obtuse, inner surface base of calyx with 10 small glands; Corolla purplish red, radial, open 1.5 cm in diameter, corolla tube short, ca. 3 mm, lobes oblong-lanceolate, 8 mm long, 4 mm wide, middle thickened fusiform, reflexed, inside surface villous, outside glabrous; Corona annular, 10-lobed, 5-lobed filiform pubescent, apex recurved; Stamens inserted on inner surface of corona and united with it, anthers adhering to each other and enclosing stigma, abaxially villous; Carpels free, glabrous, ovules multiple per carpel, stigma discoid convex; The pollen container is spatulate, tetrahedral pollen is hidden in the pollen carrier, and the sticky disc sticks to the stigma.

 Periploca sepium Bge. 2 Follicles, terete, 7~12 cm long, ca. 5 mm in diameter, glabrous, with longitudinal streaks; Seeds oblong, ca. 7 mm long, ca. 1 mm wide, dark brown, apex with white silk seed hairs; The seed coat is 3 cm long. Its flowering period is from May to June, fruiting from July to September.

 Ecological environment: It grows on arid slopes, gullies, fixed sandy land, thickets, rivers, riverside sandy land, valley terraces, river flats, wasteland, loess hills, forest margins, forests, roadside, plains, hilly forest margins, sandy land, valleys, slopes, field edges, fixed or semi-fixed dunes. World distribution: ussuri, far east. Distribution: the plant is distributed in China provinces and cities, north, northwest, southwest, the lower reaches area of the Yangtze River.

 Periploca sepium Bge. Trait identification:Dry skin long cylindrical, single or double roll, a few grooves or fragment, up to 16 cm long, 2~5 mm thick. The outer surface is grayish brown or earthy brown and reddish, coarse, with transverse lenticels, the cork is often scaly exfoliated, sometimes exposing earthy brown skin; Interior surface grayish-yellow or earthy brown. The quality is firm and crisp, and the broken surface is slightly flat. Have full-bodied distinctive aroma, long smell makes a person giddy; Bitter taste. The herb thick, thick skin, a roll shape, no wood heart, strong aroma, bitter taste is better.


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