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Latin pharmacognostic name: Alismatis Rhizoma

Alternate English names: water plantain [tuber]

Alternate Chinese names: 泽芝 zé zhī; 及泻 jí xiè; 水泻 shuǐ xiè

Kingdom: Plant

Origin in PRC Pharmacopoeia: Alisma orientale (Sam.) Juzep. [= Alisma plantago-aquatica L. var. orientale Samuels] (PRC Pharmacopoeia)

Origin (other sources): Alisma orientale (Samuels) Juzep. [= Alisma plantago-aquatica L. var. orientale Samuels]

Use: Medicinal

Category: Water-disinhibiting dampness-percolating agents / Water-disinhibiting swelling-dispersing agents

Properties: Sweet, bland; cold.

Channel entry: Kidney and bladder channels.

Indications:

• Disinhibits water and percolates dampness, drains heat: Water swelling, inhibited urination, diarrhea, strangury, vaginal discharge, and phlegm-rheum.
• Drains bladder heat and kidney channel vacuity fire: Damp-heat strangury; seminal emission.

Dosage & Method: Oral: 5–10g in decoctions.

Warnings: Caution is advised for patients concurrently using diuretic drugs because Zé xiè has a diuretic effect.

Product Description: This rhizomeTUBER is spheroid or oval in shape, about 4–5 cm long.

Quality: Large, hard, farinaceous rhizomes that are yellowish white in color are the best.

Product Area: Fújiàn, Jiāngxī.

Etymology: The name zé xiè 泽泻, literally marsh draining, is a reminder that this plant grows at the side of marshes and has a water-draining action.

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