Introduction of Lǜ Cǎo:Climbing Hop Herb or Herba Humuli Scandentis.

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 Counteracting Toxins.

 TCM Herbs Icon05 Introduction: Herbs Clearing Heat and Counteracting Toxins: an agent or substance herbs that counteracts heat toxins or fire toxins, mainly indicated in the treatment of boils, sores, abscess, erysipelas, epidemic infectious diseases, mumps, dysentery, insect or snake bite, and burns.

 
Herba Humuli Scandentis(Climbing Hop Herb).

Climbing Hop Herb Pin Yin Name: Lǜ Cǎo.
 English Name: Climbing Hop Herb.
 Latin Name: Herba Humuli Scandentis.
 Property and flavor: cold, sweet, bitter.

 Brief introduction: The herb Herba Humuli Scandentis is the dried aerial part of Humulus scandens(Lour.) Merr.(family Moraceae), used for the treatment of enteritis, dysentery, acute urinary infection, and also as a tranquilizer in cases of insomnia. The herb is commonly known as Herba Humuli Scandentis, Climbing Hop Herb, Lǜ Cǎo.

 Botanical source: Common herbal classics defined the herb Herba Humuli Scandentis(Climbing Hop Herb) as the dried aerial part of (1). Humulus scandens(Lour.) Merr.(Humulus Linn. Genus, Moraceae family, Urticales order.). This commonly used species is introduced as:

 Humulus scandens Lour.Merr. (1).Humulus scandens(Lour.)Merr.:
 Botanical description: Perennial twining herbs, stems, branches, petiole with a barbed thorn. Leaves papery, reniform pentagonal, palmately 5~7 deeply lobed 3-lobed, ca. 7~10 cm long, base heart-shaped, surface rough, sparsely strigose, abaxially pilose and yellow glands, lobes ovate-triangular, margin serrate; Petiole 5~10 cm long. The male flowers are small, yellow-green, Panicle, ca. 15~25 cm long; Female inflorescence conical, ca. 5 mm, bracts papery, triangular, apex acuminate, with white tomentose; Ovary surrounded by bracts, 2 stigmas, protruding outside bracts. Achene exudes bract at maturity. Its flowering period is spring and summer, fruiting in autumn.

 Humulus scandens Lour.Merr. Ecological environment: In China, except Xinjiang and Qinghai, the plant distributes in the north and south provinces. It often grows in ditch edge, wasteland, ruins, forest edge.

 Growth characteristics: The plant Humulus scandens prefers a warm and humid climate, strong adaptability, it is appropriate to choose loose and voluminous, deep soil layer, good drainage sandy loam or loam for cultivation.

 Characters of herbs: wrinkled leaves and clumps. The whole leaves were nearly reniform pentagonal, palmately deeply lobed, 5~7 lobes, margin coarsely serrate, hairy on both sides, with small yellow glands below. Petiole 5~20 cm long, with longitudinal furrows and barbs. Stem round, barb and pilose. Brittle and fragile, stem section hollow, uneven, skin, wood parts easy to separate. Some inflorescence or ear is visible. Slight smell, mild taste.

 Pharmacological actions: The ethanol extract of stem and leaf has a significant inhibitory effect on Gram-positive bacteria in the test tube. Humulon, similar to humulone, also has antimicrobial effects; It can inhibit the growth of gram-positive and negative bacteria, some fungi, and yeasts. There are also ineffective reports of Gram-negative bacteria, yeast. The effect of humulon on gram-negative bacteria is 1/20 of that from humulone, and its effect on Mycobacterium tuberculosis is 1/10 of that from humulone. Big dosage Injection can also produce glycosuria, hematuria. The effect on rabbits is far worse than that on cats. The decoction has an inhibitory effect on Staphylococcus aureus, Pseudomonas aeruginosa, and Proteus.

 Medicinal efficacy: Clear heat and detoxification, diuretic, and treating stranguria. It is indicated for lung heat and cough, a pulmonary abscess. asthenic fever and polydipsia, pyretic stranguria, edema, dysuria(difficulty in micturition), dampness-heat diarrhea and dysentery, toxic heat sore ulcer, itchy skin, etc.

 Administration of Herba Humuli Scandentis(Lǜ Cǎo): 
 
Reference: Administration Guide of Herba Humuli Scandentis(Lǜ Cǎo)
TCM Books: NA(CP),Internally:water decoction, 3~6 qian(about 9~18 grams),fresh herb 2~4 liang(about 60~120 grams),or extract juice.Externally:mashed and apply stick, or fumigation wash with water decoction(DCTM),Internally:water decoction, 10~15 grams, fresh herb 30~60 grams, or extract juice.Externally:mashed and apply stick, or fumigation wash with water decoction(CHMM).

 
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References:
  • 1.Introduction of Lǜ Cǎo:Climbing Hop Herb or Herba Humuli Scandentis.
  • 2.TCM Books:DCTM(Dictionary of the Chinese Traditional Medicine),CHMM(Chinese Herbal Materia Medica).

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