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Polygoni Multiflori Caulis
Flowery knotweed stem
首乌藤 〔首烏藤〕 shǒu wū téng

Alternate English names: multiflorous polygonum stem
Alternate Chinese names: 夜交藤 yè jiāo téng
Kingdom: Plant
Origin in PRC Pharmacopoeia: Polygonum multiflorum Thunb. (PRC Pharmacopoeia)
Origin in unofficial sources: Polygonum multiflorum Thunb.
Use: Medicinal
Category: Spirit-quieting agents / Heart-nourishing spirit-quieting agents
Properties: Sweet; balanced.
Channel entry: Heart and liver channels.
Actions and indications:
- Nourishes the heart and quiets the spirit: Vacuity vexation, insomnia, forgetfulness, and profuse dreaming.
- Dispels wind and frees the network vessels: Generalized pain due to blood vacuity; pain from wind-damp impediment.
- Additional uses: A decoction of shǒu wū téng may be used as a wash to treat itching of the skin.
Dosage and method: Oral: 10–30g in decoctions; also used externally.
Quality: Thick stems with a purplish brown bark are the best.
Production area: Hénán, Húběi, Húnán, Jiāngsū, Zhèjiāng.
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