Quick Facts
| Latin Name | Lonicerae Japonicae Caulis |
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| Chinese Name & Pinyin | 忍冬藤 · Ren Dong Teng |
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| Medicinal Part | Stems and woods |
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| Efficacy Category | Heat-clearing |
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| Botanical Origin | The dried branches of Lonicera japonica Thunb.(Caprifoliaceae) |
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| Nature & Flavour | Sweet; Cold |
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| Channels Entered | Lung, Stomach |
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What Is Ren Dong Teng?
Ren Dong Teng (Japanese Honeysuckle Stem) is a medicinal herb of Traditional Chinese Medicine.
Primarily produced in the Chinese provinces of Henan, Shandong, cultivated in most areas of China.
Nature & Flavour: Sweet; Cold
Channels Entered: Lung, Stomach
Ren Dong Teng: Materia Medica Profile
Identification & Quality Standard
Lonicerae Japonicae Caulis
Botanical Origin
The dried branches of Lonicera japonica Thunb.(Caprifoliaceae)
Production Regions
Primarily produced in the Chinese provinces of Henan, Shandong, cultivated in most areas of China.
Quality Requirements
Superior medicinal material has even branches, hairy fresh branch, jujube-red outer skin, tender texture with leaves.
Macroscopic Features
Long cylindrical, often branched, frequently bound into bundles, 1.5~6mm diameter. Externally brownish-red to dark brown, some is grayish-green, smooth or covered in downy hairs, outer skin easily falls off. Branches has numerous nodes, internode is 6~9cm long, with remnants of leaf and leaf scars. Brittle texture, easily broken, fractured surface is yellowish-white, center is hollow. faint odor, old branches are slightly bitter, fresh branches are tasteless.
Traditional TCM Properties
Sweet; ColdLungStomach
Traditional Functions
Clears heat and resolves toxin, disperses wind and unblocks the collaterals.
How Ren Dong Teng Is Used in TCM
In the Chinese materia medica, Ren Dong Teng is classified among the Heat-clearing herbs.
Medical Disclaimer — This article is provided for educational purposes only and describes traditional Chinese medicine concepts. It is not medical advice, and it is not intended to diagnose, treat, cure or prevent any disease. Always consult a qualified practitioner before using any herb, particularly if you are pregnant, nursing, taking medication or managing a diagnosed condition.
