Zé Xiè (泽泻), known in English as Water plantain (Alisma plantago-aquatica), is a cold, sweet and bland Chinese herb from the Drain damp category. It enters the Kidney and Bladder channels. Its main action: promotes urination, drains Damp-Heat — Lower Jiao.

Illustration of Zé Xiè (Water plantain), the dried herb
Illustration of the dried herb. Hear it pronounced in Mandarin:
PinyinZé Xiè (Ze Xie)
Chinese泽泻
EnglishWater plantain
Botanical nameAlisma plantago-aquatica
CategoryDrain damp
NatureCold
FlavourSweet, Bland
ChannelsKidney, Bladder
Dosage6–9g
CautionsKidney Yang deficiency without Damp-Heat

Actions

  • Promotes urination, drains Damp-Heat — Lower Jiao
  • Drains Kidney Fire (used in Liu Wei Di Huang Wan)

Indications

  • Damp-Heat dysuria
  • Oedema
  • Kidney Yin deficiency with ascending Fire (in formulas)

How to remember Zé Xiè

Drain damp herbs are mostly cool or cold and sweet, and most enter the Bladder channel.

You can work these out
Cold, Sweet: like most Drain damp herbs
Kidney channel: from its action “Drains Kidney Fire”
Bladder channel: from its action “Promotes urination”
Learn by heart
Bland: unusual for Drain damp herbs (most are sweet)

Formulas containing Zé Xiè

Other Drain damp herbs

Test yourself

What is the nature and flavour of Zé Xiè?

Zé Xiè is cold and sweet and bland.

Which channels does Zé Xiè enter?

Zé Xiè enters the Kidney and Bladder channels.

What are the actions of Zé Xiè?

Promotes urination, drains Damp-Heat — Lower Jiao; Drains Kidney Fire (used in Liu Wei Di Huang Wan).

What is Zé Xiè used for?

Damp-Heat dysuria; oedema; Kidney Yin deficiency with ascending Fire (in formulas).

Which formulas contain Zé Xiè?

Lóng Dǎn Xiè Gān Tāng, Liù Wèi Dì Huáng Wán, Zhī Bǎi Dì Huáng Wán, Jīn Guì Shèn Qì Wán, Wǔ Líng Sǎn and Qǐ Jú Dì Huáng Wán.

Practise Zé Xiè and the other 290 herbs

Recognise each herb from its picture, recall its nature, flavour, channels and actions, and review it again just before you would forget it.

Try the 5-question herb quiz

Or practise a TCM case

Shen Study is a study tool. Doses and cautions are as taught in standard Chinese materia medica texts; they are not prescribing advice.