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紫菀 Ziwan
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Chinese Name |
紫菀 |
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Chinese Pinyin |
Ziwan |
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English Name |
Tatarian Aster Root and Rhizome |
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Latin Pharmaceutical Name |
Asteris Radix et Rhizoma |
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Category |
Roots and rhizomes |
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Origin |
The dried root and rhizome of Aster tataricus L. f.(Asteraceae) |
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Production Regions |
Primarily produced in northeastern and northwestern China, as well as the province of Anhui. |
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Macroscopic Features |
Irregular lumps, uneven size, apex has remnants of stem and leaf, base occasionally has remnants of main root, slightly hard texture. numerous thin roots grow from the rhizomes, 3~15cm long, 0.1~0.3cm diameter, often braided into braid; externally purplish-red or grayish-red, with longitudinal wrinkles; relatively soft and pliable texture. Slightly aromatic odor, sweet and slightly bitter taste. |
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Quality Requirements |
Superior medicinal material has long root, purplish-red color, without foreign matter, with soft and pliable texture. |
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Properties |
Acrid, bitter, warm. |
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Functions |
Moistens lung, downbears qi, transforms phlegm, relieves cough. Apply to cough and panting with excessive phlegm, acute and chronic cough, strained cough and hemoptysis. |
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Technical Terms |
'Braid zi wan’: zi wan has many rootlets growing in a cluster under the rhizomes, with a shape similar to a pony tail. Because the medicinal material has a soft texture, it is woven into braids for sale. |
| 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=B00128 |
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