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Latin pharmacognostic name: Lygodii Spora

Alternate English names: climbing fern spore Japanese climbing fern spore

Alternate Chinese names: 海金砂 hǎi jīn shā; 左转藤灰 zuǒ zhuǎn téng huī

Kingdom: Plant

Origin in PRC Pharmacopoeia: Lygodium japonicum (Thunb.) Sw. (PRC Pharmacopoeia)

Origin (other sources): Lygodium japonicum (Thunb.) Sw.*

Use: Medicinal

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

Properties: Sweet; cold. (Some sources also give salty.)

Channel entry: Small intestine and bladder channels.

Indications:

• Disinhibits urine, frees strangury, and expels stones: All strangury patterns; biliary and urinary calculi.
• Disinhibits water and disperses swelling: Inhibited urination and water swelling.

Dosage & Method: Oral: 6–15g, decocted in a cloth bag.

Warnings: To be used cautiously in kidney yīn vacuity.

Quality: Best are clean, dry, shiny yellowish-brown spores that are light in substance, float on water, and that crackle when ignited.

Product Area: Guǎngdōng, Húnán.

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