Introduction of Huang Lu:Smoketree Twig or Folium et Ramulus Cotini.

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:Herbs Clearing Heat and Drying Dampness.

 TCM Herbs Icon05 Introduction: Herbs Clearing Heat and Drying Dampness: an agent or substance bitter in taste and cold in property that is effective for eliminating heat and dampness, usually used in the treatment of diseases caused by damp-heat, such as acute jaundice, acute dysentery, urinary infection, eczema, boils and abscesses.

Classifications of Herbs.

 TCM Herbs Icon 05 Introduction: The Herbs Clearing Heat and Drying Dampness are known including:, , , , , , , , , , , , , , ,, , , , , , .

 ✵Till the date Oct 10th,2019, there are totally [22] kinds of common TCM herbs, [53] kinds of related plant species, are recorded in this category. These Herbs Clearing Heat and Drying Dampness are briefly introduced separately:

Folium et Ramulus Cotini(Smoketree Twig).

Cotinus coggygria Pin Yin Name: Huánɡ Lú, or Huánɡ Lú Zhī Yè.
 English Name: Smoketree Twig, Twig and leaf of Common Smoketree.
 Latin Name: Folium et Ramulus Cotini.
 Property and flavor: cold, pungent, bitter.

 Brief introduction: The Herb Folium et Ramulus Cotini is the dried leaf and branch of Cotinus coggygria Scop.var.cinera Engl.(family anacardiaceae), used for treating hepatitis with jaundice, dysentery, and eczema with pruritus. The herb is commonly known as Folium et Ramulus Cotini, Smoketree Twig, Huánɡ Lú.

 Botanical source: Common herbal classics and official herbal classics defined the herb Folium et Ramulus Cotini(Smoketree Twig) as the dried leaf and branch of (1). Cotinus coggygria Scop.var.cinera Engl. It is a plant of the Cotinus Genus, Anacardiaceae family, Sapindales order. This commonly used species is introduced as:

 Cotinus coggygria (1).Cotinus coggygria Scop.var.cinera Engl.:
 Botanical description: It is commonly known as Huánɡ Lú, or Guāng Yè Huánɡ Lú. Deciduous shrubs or trees, up to 8 meters tall. Leaves are alternate, obovate, 3~8 cm long, 2.5~6 cm wide, apex rounded or concave, base rounded or broadly cuneate, entire, glabrous or pubescent only on lower veins, lateral veins 6~11 pairs, apex often bifurcated; Petiole slender, 1.5 cm long. Large panicle terminal; Anthesis, ca. 3 mm; 5 sepals, lanceolate; 5 petals, oblong, as long as sepals; 5 stamens, shorter than petals; Ovary superior, with 2~3 short lateral styles. The ear is 5~20 cm long, with most sterile flowers long and slender pedicels, becoming purple and green feather shape. Stone fruit renal, 3~4 mm in diameter, red when ripe. It is flowering in April, fruiting in June.

  Cotinus coggygria It prefers light, also endure half shade; Cold-resistant, drought resistant and could grow in barren and alkaline soil, not resistant to water moisture, should be planted in deep soil, fertile and good drainage sandy loam. Fast growth, developed root system, sprout strong. Strong resistance to sulfur dioxide. In autumn, when the temperature difference between day and night is greater than 10 ℃, the leaves turn red.

 Ecological environment: The shrub often grows on sunny slopes. It is native to the southwest and north area of China, the tree mainly distributes in the north, southwest, and the lower reaches area of the Yangtze River. It also distributes in Southern Europe, Syria, Iran, Pakistan.

 Growth characteristics: The plant grows in the hillside forest at an elevation of 700~1620 meters above sea level.

 Characters of herbs: The leaf is papery and is mostly wrinkled, broken, intact and flattened, ovoid to obovate, 3~8 cm in length, 2.5~10 cm in width. Gray-green, white pubescent on both sides, the lower surface is denser along leaf veins; Petiole 1~4~7.5 cm long. Slight fragrance, astringent taste, slightly bitter. The herb with many leaves, color green, no branches is best.

 Pharmacological actions: Total flavonoid glycosides preparation obtained from Cotinus coggygria leaves, orally take 80~160 mg/kg has an anti-inflammatory effect, has the effect of inhibiting cell proliferation effect on the rat and mouse formaldehyde paw edema, and increase the resistance of capillaries, ineffective on egg white edema. Besides, because of the tannin, it has the effect of convergence and antibacterial and can be used externally to treat wounds. It can also be taken internally to treat gastroenteritis.

 Medicinal efficacy: Clear heat and dampness, clear heat and detoxify, activate blood, and relieve pain. It is indicated for the treatment of jaundice, icteric hepatitis, water and fire scalds, dermatitis rhus, erysipelas, conjunctivitis, the fall and bruise hurt.

 Administration of Folium et Ramulus Cotini(Huánɡ Lú): 
Reference: Administration Guide of Folium et Ramulus Cotini(Huánɡ Lú)
TCM Books: Internally:1~3 qian(about 3~9 grams), for hepatitis treatment, adult dosage 1 liang daily(about 30 grams),half dosage for infant, decoct twice and combined,take in the morning and at night.Externally:use twig,leaves, wash with water decoction, or mashed the leaves and apply stick at the affected area(NHMC).

  • 1.Introduction of Huang Lu:Smoketree Twig or Folium et Ramulus Cotini.
  • 2.TCM Books:DCTM(Dictionary of the Chinese Traditional Medicine),CHMM(Chinese Herbal Materia Medica),NHMC(National Herbal Medicine Compendium).

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