Kawakawa (Piper excelsum): The Māori Heart-Leaf Peppery Bush, Myristicin, Diayangambin, and Digestive Mucosal Soothing

The Premier Healing Shrub of Māori Rongoā

Easily identified by its deep green heart-shaped leaves and zigzagging branches in the coastal forests of New Zealand, Kawakawa (Piper excelsum) is celebrated in Māori tradition as the ultimate healing plant. In Māori folklore, leaves perforated by native looper caterpillar holes are preferred, as insect nibbling triggers the plant to synthesize higher concentrations of protective secondary bioactives.

1. Diayangambin Lignans & Myristicin

• Diayangambin (Novel Lignan): Demonstrates potent natural immunosuppressive and anti-inflammatory activity, dampening overactive macrophage cytokine cascades.
• Myristicin & Elemicin (Phenylpropenes): Provide gentle carminative and antispasmodic relaxation to the stomach and intestinal smooth muscles.
• Topical Balm: Infused into olive oil or beeswax to soothe eczema, insect stings, and dry skin rashes.

2. References & Clinical Citations

• Russell, G. B., et al. (1987). Diayangambin, an immunosuppressive lignan from Piper excelsum. Journal of Natural Products, 50(6), 1146-1148.
• Campbell, B. (2014). Rongoā Māori: Māori medicine in the 21st century. Journal of Holistic Healthcare, 11(2), 22-26.

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