- Bignoniaceae
- Inner bark
- Amazon basin, Brazil
- Cut bark, for decoction
Pau d’Arco
Tabebuia impetiginosa
Select sizeThe plant
Pau d’arco refers to the inner bark of certain South American trumpet trees. The stock identifies Tabebuia impetiginosa.
What's in it
Lapachol-related substances are naturally occurring compounds in the bark. The amounts depend on the species and preparation.
Lapachol
A naphthoquinone, the best-known component.
Beta-lapachone
A related quinone, studied separately.
Quercetin
A flavonoid present in the bark.
Tannins
Contributing astringency to the decoction.
How it works
Traditional tonic: Pau d’arco has been used as a general wellbeing bark. Tonic means a preparation traditionally associated with strength and resilience. A distinctive brew: Simmering the appropriate bark draws its woody flavour into water, creating the characteristic traditional drink.
In the tradition
Associated with South American herbal practice and also called lapacho.
The source tree is known for showy trumpet-shaped flowers.
- 1Simmer 1–2 tsp dried pau d'arco bark in 500ml water for 15–20 mins as a decoction.
- 2Drink 2–3 cups daily.
- 3Mild, slightly woody, earthy flavour with a faint vanilla note.
- 4Best used in cycles: 3 weeks on, 1 week off.
Storage: Store in an airtight container in a cool, dry place away from direct sunlight and moisture. Best used within 12–24 months.
- Check blood-thinning medicines and bleeding disorders.
- Avoid during pregnancy and breastfeeding.
- On chemotherapy: check with your doctor; may interact.
A food supplement, not a substitute for a varied diet. Speak to your doctor before use if you are pregnant, breastfeeding or taking medication.
Common questions
How do I prepare pau d’arco?
Simmer 1–2 tsp dried pau d'arco bark in 500ml water for 15–20 mins as a decoction. Full directions are in the How to use panel above. See also: Infusion vs decoction.
What is pau d’arco?
Pau d’Arco (Tabebuia impetiginosa) belongs to the Bignoniaceae family; the inner bark is used. Origin: Amazon basin, Brazil. A South American bark with a woody character and a longstanding herbal tradition.
How should I store dried pau d’arco?
Store in an airtight container in a cool, dry place away from direct sunlight and moisture. Best used within 12–24 months.
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