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Stachytarphetae Herba seu Radix

Jamaica vervain

玉龙鞭 〔玉龍鞭〕 yù lóng biān

Kingdom: Plant

Origin in unofficial sources: Stachytarpheta jamaicensis (L.) Vahl

Use: Medicinal

Properties: Sweet and bitter; cold.

Actions and indications: Disinhibits dampness and transforms stasis; clears heat and resolves toxin. Treats strangury; white turbidity; wind-damp impediment (fēng shī bì) pain; conjunctivitis; laryngitis; stasis swelling due to injury from knocks and falls; welling-abscesses (yōng) and boils.

Dosage and method: Oral: Decoct (15–30g dried, 30–-60g fresh). Topical: Apply crushed.

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