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山藥 Shanyao
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Chinese Name |
山藥 |
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Chinese Pinyin |
Shanyao |
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English Name |
Common Yan Rhizome |
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Latin Pharmaceutical Name |
Dioscoreae Rhizoma |
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Category |
Roots and rhizomes |
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Origin |
The dried rhizome of Dioscorea opposite Thunb.(Dioscoreaceae). |
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Production Regions |
Primarily produced in the Chinese provinces of Henan, Shanxi, Hebei, Shaanxi. |
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Macroscopic Features |
Slightly cylindrical shape, curved and slightly flat, 15~30cm long, 1.5~6cm diameter. Externally yellowish-white or pale yellow, with longitudinal grooves, longitudinal wrinkles and rootlet scars, occasionally has pale brown remnants of outer skin. Heavy in weight, firm texture, hard to break, fractured surface is white, powdery. faint odor, tasteless, slightly sour taste, sticky when chewed. Guang shan yao is cylindrical, uneven ends, 9~18cm long, 1.5~3cm diameter. Externally smooth, white or yellowish-white. |
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Quality Requirements |
Superior medicinal material is long, thick, firm, powdery and white. |
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Properties |
Sweet, Neutral |
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Functions |
Supplements spleen, nourishes stomach, engenders fluid, benefits lung, supplements kidney, astringes essence. Apply to lack of food intake due to spleen deficiency, chronic diarrhea, cough and panting due to lung deficiency, emissions due to kidney deficiency, vaginal discharge, frequent urination, and diabetes due to deficiency-heat. |
| Link |
 Medicinal Plant Images Database
Chinese Medicinal Formula Images Database
Chinese Medicine Specimen Database
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Permanent URL：https://sys01.lib.hkbu.edu.hk/cmed/mmid/detail.php?pid=B00007 |
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