Jie Gu Mu

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Sambucus williamsii Hance

Genus: Sambucus Species: williamsii Pinyin: Jie Gu Mu
Elder twig接骨木

☯ TCM Properties

Category: wind-damp dispelling
Temperature: neutral
Taste: sweet, bitter
Meridians: liver
Functions:

Dispels Wind-Dampness and Unblocks the Collaterals; Invigorates Blood and Alleviates Pain; Strengthens the Sinews and Bones; Promotes Urination and Reduces Edema; Stops Bleeding

Traditional Chinese Uses

Jie Gu Mu (sambucus stem and leaf, elderberry plant) is a warm, sweet herb used in Chinese medicine to invigorate Blood, dispel Wind-Damp, and reduce swelling. Its primary application is for traumatic injuries with swelling and pain, fractures, and joint pain from Wind-Damp obstruction. Topically, it is applied for inflammatory skin conditions and as a poultice for bone injuries. Its combined Blood-activating and Wind-expelling properties make it useful in orthopedic and traumatology-related herbal protocols.

Botanical Description

Sambucus williamsii, the Chinese elder, is a large deciduous shrub or small tree of the Adoxaceae family, typically reaching 3 to 6 m in height, with stout greyish stems and a soft white pith. The bark of older trunks is fissured and corky. Leaves are opposite, pinnately compound with five to seven (rarely more) leaflets that are ovate-lanceolate, 5 to 15 cm long, finely serrated, with an asymmetric base and an unpleasant odor when bruised. Small creamy-white five-merous flowers are borne in dense conical panicles 5 to 12 cm across in late spring. The fruit is a small globose drupe about 4 to 5 mm in diameter, ripening from green through red to glossy black-purple, containing three to five hard pyrenes. It is native to deciduous forests and ravines across China, Korea, and far eastern Russia.

Active Constituents

(+)-Pinoresinol

Furofuran lignan

Concentration: Characteristic bioactive lignan of the twigs

Isolated from S. williamsii with documented antifungal activity; as a phytoestrogenic lignan it also stimulates osteoblastic proliferation, supporting the herb's bone-strengthening use.

(-)-Syringaresinol

Furofuran lignan

Concentration: Major twig/stem lignan

A phytoestrogen-type lignan shown to promote proliferation of osteoblast-like UMR106 cells, a proposed mechanism for the anti-osteoporotic and fracture-healing effects.

(-)-Lariciresinol

Dibenzylbutane lignan

Concentration: Twig lignan

Antioxidant lignan and precursor of the enterolignans enterodiol/enterolactone after gut-microbial metabolism, contributing to weak oestrogenic and bone-protective activity.

Sambucunol A / Sambucunol B

Lignans (novel)

Concentration: Minor species-specific lignans

New lignans isolated from the bioactive fraction of S. williamsii twigs reported to stimulate osteoblastic cell proliferation.

Ursolic acid / Oleanolic acid

Pentacyclic triterpene acids

Concentration: Minor terpenoid constituents

Anti-inflammatory and analgesic triterpenes that support the traditional use for Wind-Damp pain and joint disease.

Caffeic acid / Protocatechuic acid

Phenolic acids

Concentration: Common phenolic constituents

Antioxidant and anti-inflammatory phenolic acids that scavenge free radicals and contribute to tissue-protective effects.

Chlorogenic acid

Phenolic acid (caffeoylquinic acid)

Concentration: Phenolic constituent

Antioxidant polyphenol common to Sambucus species that adds to the anti-inflammatory profile of the twig extract.

alpha-Amyrin

Triterpenoid

Concentration: Trace terpenoid

Anti-inflammatory triterpene found among the terpenoid fraction of the plant.

⚠ Drug Interactions

Estrogen therapy / hormone-modulating drugs (HRT, tamoxifen, aromatase inhibitors)

Minor Evidence: Theoretical

The bone-active lignans of S. williamsii (pinoresinol, syringaresinol) are phytoestrogens that can weakly bind estrogen receptors, so concentrated lignan-rich extracts could theoretically add to or interfere with hormone-modulating therapy.

Clinical note: No human interaction data exist; use caution in estrogen-sensitive conditions and discuss high-dose supplement use with a clinician. No pharmacokinetic drug interactions have been documented for the crude herb.

Dosage

FormAmount Frequency Duration Population Notes
decoction 9-15g Daily

Preparation Methods

Decoction

Parts: Twigs (Ramulus), Stems

Decoct 15-30 g of the dried twigs/stems in water to dispel Wind-Dampness, unblock the collaterals, invigorate Blood and strengthen sinews and bones; used for bone fractures, joint pain and arthritis.

External wash / poultice

Parts: Twigs, Leaves

Prepare a strong decoction as a warm wash, or mash fresh material into a poultice, applied over fractures, sprains and traumatic swellings to reduce swelling and relieve pain.

Medicinal wine / tincture

Parts: Twigs

Steep the twigs in rice wine or alcohol to make a warming liniment or internal tonic for chronic Wind-Damp Bi pain and to support bone and sinew. Note: Sambucus tissues can contain cyanogenic and other constituents, so use processed material and avoid excessive raw doses.

Clinical Studies

A Metabolomics Study on the Bone Protective Effects of a Lignan-Rich Fraction From Sambucus Williamsii Ramulus in Aged Rats

Xiao HH, Zhang Y, Cooper R, et al. (2018) Frontiers in Pharmacology Preclinical (animal metabolomics study)

A lignan-rich fraction of S. williamsii twigs improved bone microarchitecture and reversed metabolic perturbations in aged rats, supporting the traditional anti-osteoporotic use. No human clinical trials of the herb have been published to date.

Historical Texts

Xinxiu Bencao (Tang Materia Medica / Newly Revised Materia Medica), Su Jing et al.

Tang dynasty (659 CE)
Early record of Jie Gu Mu (接骨木, literally 'bone-joining wood'), reflecting long-standing use for setting fractures and treating trauma and Wind-Damp pain.

Bencao Gangmu (Compendium of Materia Medica), Li Shizhen

Ming dynasty (1596 CE)
Describes the twigs for dispelling Wind, unblocking the collaterals, promoting urination and treating fractures, sprains and joint diseases.

References

  1. Xiao HH, Dai Y, Wong MS, Yao XS. Phytochemicals and potential health effects of Sambucus williamsii Hance (Jiegumu) . Chinese Medicine (2016) [DOI]
  2. Xiao HH, Zhang Y, Cooper R, et al.. A Metabolomics Study on the Bone Protective Effects of a Lignan-Rich Fraction From Sambucus Williamsii Ramulus in Aged Rats . Frontiers in Pharmacology (2018) [DOI]
  3. Hwang YH, Wong MS, Xiao HH, et al.. Lignans from Sambucus williamsii Protect Bone Via Microbiome . Current Osteoporosis Reports (2024) [DOI]

This information is for educational purposes only and is not intended to replace professional medical advice. Always consult a qualified healthcare provider before using any herbal remedy, especially if you are pregnant, nursing, or taking medications.

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