Introduction of Qing Feng Teng:Orientvine Stem or Caulis Sinomenii.

TCM Herbalism:Medicinals and Classifications. ✵The article gives records of the herb Orientvine Stem, its English name, Latin name, property and flavor, its botanical source two plant species, ①.Sinomenium acutum(Thunb.) Wils., ②.Sinomenium acutum var.cinereum Wils., with a detailed introduction to the botanical features of these two plant species, the growth characteristics, and ecological environment of these two plant species, the features of the herb Orientvine Stem, its pharmacological actions, medicinal efficacy, and administration guide.

Caulis Sinomenii(Orientvine Stem).

Orientvine Stem Pin Yin Name: Qīnɡ Fēnɡ Ténɡ.
 English Name: Orientvine Stem.
 Latin Name: Caulis Sinomenii.
 Property and flavor: warm, pungent, bitter.

 Brief introduction: The herb Caulis Sinomenii is the dried lianoid stem of Sinomenium acutum(Thunb.) Wils., or Sinomenium acutum var.cinereum Wils., used to dispel wind-damp and alleviate pain in cases of rheumatic arthritis, articular swelling and pain. The herb is commonly known as Caulis Sinomenii, Orientvine Stem, Qīnɡ Fēnɡ Ténɡ.

 Sinomenium acutum Wils.:growing leaves Botanical source: Herbal classic book defined the herb Caulis Sinomenii(Orientvine Stem) as the dried lianoid stem of (1). Sinomenium acutum(Thunb.) Wils., or (2). Sinomenium acutum var.cinereum Wils. They are plants of the Menispermaceae family (moonseed family), Ranales order. These 2 commonly used species are introduced:

(1).Sinomenium acutum(Thunb.) Wils.

 Sinomenium acutum Wils.:climbing plants Botanical description: It is commonly known as Qīng Téng. Wood lianas, the plant grows up to 20 meters long. Stem is grayish brown, with irregular cracks; Branchlets are terete, linear, pilose or subglabrous. Leaves are papery to leathery, cordate or ovoid, 7~15 cm long, 5~10 cm wide, apex is acuminate or pointed, base is cordate or sub truncate, entire or 3~7 angular-lobed, uppersurface is green, undersurface is glaucous, young leaves tomentose, old leaves glabrous or just below pilose, palmate veins are usually 5; Petiole length 5~15 cm. Panicles axillary, large, hairy; Flowers small, yellowish-green, unisexual plant; 6 sepals, 2-wheeled, abaxially pilose; 6 petals, 0.7-1 mm long; 9~12 male flowers and stamens; Female flowers are sterile; stamens are filiform, 3 carpels. Drupe is oblate, slightly askew, 5~8 mm in diameter, red to clear red. Its flowering period is summer, fruiting in autumn.

 Sinomenium acutum Wils.:climbing plants Ecological environment: The plant grows in forests, forest margins, gullies or thickets, climbing on trees or stone mountains. Resources distribution: The plant is distributed in the Yangtze river basin and the south areas of China.

 Growth characteristics: The plant Sinomenium acutum prefers a cool and humid climate. Under the conditions of abundant rainfall, fog and high soil and air humidity, the plants grow vigorously. It is advisable to cultivate in sandy loam with abundant and fertile humus.

 Orientvine Stem:herb photo Characters of herbs: The stem is cylindrical, slightly curved, and the thin stems are curved into bundles, with a diameter of 0.5~2 cm. The surface is green-brown to gray-brown, with longitudinal wrinkles, fine transverse cracks, and lenticels. The nodes are slightly expanded, with protruding branch marks or leaf marks. The thin stem is brittle and slightly hard, which is easy to break, and the wood part is grayish brown and split-like; The stem is thick and hard, the fracture surface is brown, the wood part has radial texture, commonly known as wheel pattern, and many small holes can be seen, with tiny pith in the center, yellowish-white, the herb has a slight odor, it tastes slightly bitter. The herb of better grade has even stripes.

 Medicinal efficacy: Dispelling wind and remove dampness through diuresis, activate blood circulation and detoxify. It is indicated for rheumatism arthralgia, arthroncus of the knee, edema, beriberi, traumatic injury of fall, fracture, deep abscess, osteomyelitis, suppurative arthritis, spondylitis, swelling ulcer and swollen poison, itchy skin, etc.

 Administration of Caulis Sinomenii (Qīnɡ Fēnɡ Ténɡ): 
Reference: Administration Guide of Caulis Sinomenii (Qīnɡ Fēnɡ Ténɡ)
TCM Books: ①.Internally:water decoction,9~15 grams, big dosage could be 30~60 grams, or infusing in wine.Externally:proper amount,fresh herb mashed and apply stick,or fumigation wash with water decoction.

(2).Sinomenium acutum var.cinereum Wils.

 Botanical description: It is commonly known as Máo Qīng Téng. This variety is very similar to the Sinomenium acutum(Thunb.) Wils. The main difference lies in: the leaf surface has short villi, the lower surface is grayish-white, denser villi; Inflorescences and young stems are also with short villi.
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