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Alternate Chinese names: 萆薢 bēi xiè

Kingdom: Plant

Origin in PRC Pharmacopoeia: Dioscorea hypoglauca Palib. (PRC Pharmacopoeia)

Origin in unofficial sources: Dioscorea hypoglauca Palib.; Dioscorea collettii Hook. f.; Dioscorea tokoro Mak.; Dioscorea gracillima Miq.; Dioscorea futschauensis R. Kunth

Use: Medicinal

Category: Water-disinhibiting dampness-percolating agents / Urine-disinhibiting strangury-freeing agents

Properties: Bitter; balanced.

Channel entry: Liver, stomach, and bladder channels.

Actions and indications:

• Disinhibits dampness and dispels turbidity: Unctuous strangury and white turbidity.
• Dispels wind and eliminates dampness: Wind-damp impediment patterns.

Dosage and method: Oral: 10–15g in decoctions.

Warnings: To be used with care in kidney yīn depletion.

Notes: Some texts list mián bì xiè (绵萆薢, Dioscoreae Septemlobae seu Futschauensis Radix, from Dioscorea septemloba Thunb., and D. Futschauensis Uline ex R. Kunth) as an associated medicinal. It has the same actions and indications as bì xiè.

Quality: Evenly sized white slices are the best.

Production area: Sìchuān, Húběi, Zhèjiāng.

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