Zǐ Sū Yè (紫苏叶), known in English as Perilla leaf (Perilla frutescens), is a warm, acrid Chinese herb from the Release exterior (Cold) category. It enters the Lung and Spleen channels. Its main action: releases exterior, disperses Wind-Cold.

Illustration of Zǐ Sū Yè (Perilla leaf), the dried herb
Illustration of the dried herb. Hear it pronounced in Mandarin:
PinyinZǐ Sū Yè (Zi Su Ye)
Chinese紫苏叶
EnglishPerilla leaf
Botanical namePerilla frutescens
CategoryRelease exterior (Cold)
NatureWarm
FlavourAcrid
ChannelsLung, Spleen
Dosage3–9g
CautionsQi deficiency with excessive sweating

Actions

  • Releases exterior, disperses Wind-Cold
  • Moves qi, expands chest, resolves stagnation
  • Resolves seafood poisoning, calms foetus

Indications

  • Wind-Cold with qi stagnation, nausea, chest fullness
  • Morning sickness
  • Seafood poisoning

How to remember Zǐ Sū Yè

Release exterior (Cold) herbs are mostly warm or hot and acrid, and most enter the Lung channel.

You can work these out
Warm, Acrid: like most Release exterior (Cold) herbs
Lung channel: from its action “Releases exterior”
Learn by heart
Spleen channel: nothing in its group or its actions points to it

Formulas containing Zǐ Sū Yè

Other Release exterior (Cold) herbs

Test yourself

What is the nature and flavour of Zǐ Sū Yè?

Zǐ Sū Yè is warm and acrid.

Which channels does Zǐ Sū Yè enter?

Zǐ Sū Yè enters the Lung and Spleen channels.

What are the actions of Zǐ Sū Yè?

Releases exterior, disperses Wind-Cold; Moves qi, expands chest, resolves stagnation; Resolves seafood poisoning, calms foetus.

What is Zǐ Sū Yè used for?

Wind-Cold with qi stagnation, nausea, chest fullness; morning sickness; seafood poisoning.

Which formulas contain Zǐ Sū Yè?

Sū Zǐ Jiàng Qì Tāng.

Practise Zǐ Sū Yè 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.