Introduction of Ge Gen:Radix Puerariae or Kudzuvine Root.

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:Pungent-cool Exterior-releasing Herbs.

 TCM Herbs Icon01 Introduction: Pungent-cool exterior-releasing herbs: an agent or substance herbs pungent in flavor and cool in property, which is usually used for treating a wind-heat exterior syndrome.

 
Classifications of Herbs.

 TCM Herbs Icon 02 Introduction: The pungent-cool exterior-releasing herbs are known including:, , , , , , , , , , , , .

 ✵Till the date Oct 10th,2019, there are totally [13] kinds of common TCM herbs, [21] kinds of related plant species, [1] kind of insect species, are recorded in this category. These pungent-cool exterior-releasing herbs are briefly introduced separately:

 
Radix Puerariae(Kudzuvine Root).

Pueraria lobata  Pin Yin Name: Gě Gēn.
 English Name: Kudzuvine Root, Lobed Kudzuvine Root.
 Latin Name: Radix Puerariae.
 Property and flavor: cool, pungent, sweet.

 Brief introduction: The herb Radix Puerariae is the dried root of Pueraria lobata(Willd.) Ohwi, or Pueraria thomsonii Benth.(family Legumonisae), used (1).to reduce heat in cases of exterior syndrome with fever and painful stiffness of the back and nape, (2).to relieve thirst in febrile diseases and diabetes mellitus, (3).to arrest diarrhea in spleen insufficiency, and (4).to promote eruption for measles. The herb is commonly known as Radix Puerariae, Kudzuvine Root, Gě Gēn.

  Botanical source: The herb Radix Puerariae(Kudzuvine Root) is the dried root of the (1). Pueraria lobata(Willd.) Ohwi, or (2). Pueraria thomsonii Benth., they are plants of the Pueraria Genus, the Fabaceae(Leguminosae) family of the Fabales order. These 2 commonly used species are introduced as:

 Pueraria lobata Willd. Ohwi (1).Pueraria lobata(Willd.)Ohwi.:
 Botanical description: The Pueraria lobata (Willd.) Ohwi., is a plant of perennial deciduous vine, it grows up to 10 meters. It is commonly known as Ye Ge or wild pueraria. The whole plant is brown with hair. Tuberous cylindrical, hypertrophy, skin gray, internal silty, fibrous very strong. Stems stout base, upper branches. Three out of the compound leaves; terminal petiole longer; leaves rhombus-shaped, 5.5~19 cm long, 4.5~18 cm wide, apex acuminate, base rounded, sometimes lobed, lateral leaflets are smaller, obliquely ovate, varies on both sides, pale back, with cream, both sides of the white abaxially pubescent; stipules shield-like students, ovate-oblong, small care needle-shaped. Racemes are axillary or terminal, Corolla is blue-purple or purple; bracts are narrowly linear, caducous, bractlets ovate or lanceolate; calyx campanulate, 0.8~1 cm long, 5 calyx teeth, lanceolate, above 2 teeth connate, longer than 1 tooth longer; petals subrounded or oval, apex dorsal, base with two short ears, wings are narrowly elliptic, shorter than the petals, often with basal auricles, keels slightly longer than the petals; 10 stamens, body; ovary linear, style is curved. Pods are linear, 6~9 cm long, 7~10 mm wide, densely tanned hirsute. Seeds are oval, auburn, shiny. Its flowering period is from April to August, fruiting period is in October.

 Growth characteristics: Strong adaptability, the plant can be cultivated in the sunny barren slope, forest edge, it is better to be cultivated in deep, fertile, loose sandy soil. The plant grows all over the country.

 Characters of herbs: The kudzu herb is longitudinally rectangular thick slices or cubes, 5~35 cm long and 0.5~1 cm thick. The outer skin is light brown, longitudinally wrinkled, coarse. The surface of the cross-section is yellow and white, the texture is not obvious. The quality is tough, fibrous. Odorless, slightly sweet taste.

 Pharmacological actions: ①. Effects on the circulatory system: Pueraria flavone can increase blood flow in the brain and coronary vessels. ②. Spasmolysis: Pueraria root contains daidzein, which has a spasmolysis effect on isolated intestines of mice and guinea pigs. ③. Hypoglycemic effect: Rabbit was orally taken Pueraria decoction, blood glucose rose in the first two hours, then decreased, decline to the lowest level in 3-4 hours. It has no antagonism to adrenergic hyperglycemia of rabbits, but can make it increase, but can promote the blood glucose to return to normal level early. ④. Antipyretic effect: Pueraria water saps have an obvious antipyretic effect on rabbits with artificial fever, and the antipyretic effect can last for 4-5 hours.

 Medicinal efficacy: Relieving muscles to expel heat, promoting eruption of measles, promote the production of body fluid to quench thirst, elevating Yang and relieve diarrhea, neutralize the effect of alcoholic drinks. The root contains flavonoid, the flavonoid has hyperglycemic, antihypertensive effect, dilate cardiovascular and cerebrovascular, enlarge breast and slim waist.

 Administration of Radix Puerariae(Gě Gēn): 
 
Reference: Administration Guide of Radix Puerariae(Gě Gēn)
TCM Books: Internally:9~15 grams(CP),or water decoction,1.5~3 qian(about 4.5~9 grams),or extract juice.Externally:mashed and apply stick(DCTM),or water decoction, 10~15 grams, or extract juice.Externally:proper amount,mashed and apply stick.(CHMM)


 Pueraria thomsonii Benth (2).Pueraria thomsonii Benth.:
 Botanical description: The Pueraria thomsonii Benth., is a plant of vine. It is commonly known as Gan Ge Teng or sweet pueraria vine. Root hypertrophy. Stems are yellowish brown short hairs or miscellaneous hirsute. Leaves trimmed, long elliptic, hairy; leaflets lanceolate to broadly ovate, sometimes 3-lobed, 9~21 cm long, 8~18 cm wide, apex shortly acuminate, base graphics. Racemes axillary; bracteoles ovate; calyx campanulate, 1.2~1.5 cm long, 5 calyx teeth, lanceolate, longer than calyx tube, yellow hirsute; corolla purple, long 1.3~1.8 cm. Pods are long oval, flat; length 10~12 cm, width 1~1.2 cm, densely beige hirsute. Seeds are kidney-shaped or round. Its flowering period is from June to September, fruiting period is from August to October.

 Growth characteristics: The plant is cultivated or grows wild in mountain thickets and sparse forests, it has strong adaptability.

 Characters of herbs: The roots are cylindrical, spindle-like, or semi-cylindrical, and some are longitudinally or diagonally cut in thick slices of varying sizes. The surface without cortex is yellowish-white or light yellow, the surface with cortex is grayish brown. The quality is hard and heavy, the fiber is weaker, some show woolly hairy shape, rich in powder content. The herb which is large, solid quality, white, sufficient powder content, less fiber is the better.

 
 
References:
  • 1.Introduction of Ge Gen:Radix Puerariae or Kudzuvine Root.
  • 2.TCM Books:DCTM(Dictionary of the Chinese Traditional Medicine),CHMM(Chinese Herbal Materia Medica).

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