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Dioscorea nipponica Mak.
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English Name |
Throughhill Yam, Chuanlong Yam |
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Latin name |
Dioscorea nipponica Mak. |
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Family & Genus |
Dioscoreaceae, Dioscorea |
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Description |
Perennial winding herbs. Rhizomes stout and hard, irregularly cylindrical, amphitropous underground, about 4-5cm in diameter, with branches; stem thin, often winding other shrubs; leaves alternate, broad oval, margin commonly 3-7 lobed or near entire; spike-like inflorescence, flowers small, unisexual, dioecious; sprouting fruit, ovate to oblong. Flowering: June to August, fruiting: August to October. |
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Distribution |
Growing on hill-slopes, forest margins, thickets, or sea shore. Distributed in Inner Mongolia, Heilongjiang, Jilin, Liaoning, Hebei, Henan, Shanxi, Shaanxi, Gansu, Sichuan, Guizhou, Hubei, Hunan, Shandong, Anhui, Jiangsu, Zhejiang, Jiangxi and etc. The medicinal materials are produced in Liaoning, Jilin, Heilongjiang, Shandong, Zhejiang, Hebei, Shanxi and etc. |
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Part Used |
Medical part: rhizome. Chinese name: Chuanshanlong. |
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Harvest & Processing |
Excavated in autumn, removed rootlets, scraped cork and sun-dried. |
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Chemistry |
Mainly contains various steroidal saponins such as diosgenin, etc. |
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Pharmacology |
Antitussive, phlegm-eliminating and pant-calming. |
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Properties & Actions |
Neutral, bitter.Promoting blood circulation for soothing sinew, dispersing food and disinhibiting diuresis, dispelling phlegm and preventing malaria attack. |
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Indications & Usage |
Anemofrigid-damp arthralgia, chronic tracheitis, dyspepsia, strains and sprains, malaria, anthracia.Oral administration: decocting, 25-50g (fresh products 50-100g); or made as medicinal liquor. External application: fresh products smashed for application. |
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Examples |
1. Treat aching pain of waist and leg, numbness of bones and muscles: fresh throughhill yam root and stem 2 liang. A pot of water, decoct for 5-6 times, the effect will be better with brown sugar added.
2. Treat strain: throughhill yam 5 qian. Decoct in water, add brown sugar, yellow wine. Swallow in morning and evening.
3. Treat Kashin-Bek syndrome, pain of waist and leg: throughhill yam 2 liang, liquor1 jin, immerse for 7 days. Swallow 1 liang for each dose, 2 times a day.
4. Treat sudden sprain in the lumbar region, sprain pain: throughhill yam 5 qian. Decoct in water and swallow. |
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Permanent URL：https://sys01.lib.hkbu.edu.hk/cmed/mpid/detail.php?herb_id=D00222 |
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