🐚Micronesian & Melanesian Medicine

Polynesian Arrowroot (Pia)

Tacca leontopetaloides

About Polynesian Arrowroot (Pia)

Polynesian Arrowroot (Pia) (Tacca leontopetaloides) is a herb used in the Micronesian & Melanesian Medicine tradition to help with Digestive Issues, Wound Healing, Skin Health, and Nutritive, among 1 other condition it addresses. The aerial parts and leaves are the parts traditionally used, used both internally and topically.

Botanical background

Tacca leontopetaloides is a species of flowering plant in the yam family Dioscoreaceae, that is native to tropical Africa, South Asia, Southeast Asia, northern Australia, New Guinea, Samoa, Micronesia, and Fiji. As an important food source, it was intentionally taken to tropical Pacific Islands with early human migrations. Common names include Polynesian arrowroot, pia (Hawaii, French Polynesia, Niue, and Cook Islands), masoa (Samoa), mahoaΚ»a (Tonga), yabia (Fiji) gapgap (Guam) and taka (Indonesia).

Source: Wikipedia, via iNaturalist

Parts used

Aerial Parts Β· bothLeaves Β· both
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Decoction

1–2 cups daily
  • Add 1–2 tsp of dried Polynesian Arrowroot (Pia) to 2 cups of cold water.
  • Bring to a boil, then simmer for 15–20 minutes.
  • Strain and drink warm.
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Tincture

20–40 drops in water, 2–3Γ— daily
  • Pack dried Polynesian Arrowroot (Pia) into a jar and cover with 40–60% alcohol.
  • Seal and steep for 4–6 weeks, shaking daily.
  • Strain and store in a dark dropper bottle.
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Powder / Capsule

500 mg – 1 g, 1–3Γ— daily
  • Grind dried Polynesian Arrowroot (Pia) into a fine powder.
  • Fill size 00 capsules or stir into smoothies or honey.
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Topical / Poultice

1–2Γ— daily as needed
  • Mash fresh Polynesian Arrowroot (Pia) or mix the powder with a little water to form a paste.
  • Apply to the affected area for 20–30 minutes.
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Infused Oil

Massage into affected area 1–2Γ— daily
  • Fill a jar with dried Polynesian Arrowroot (Pia).
  • Pour over a carrier oil until submerged.
  • Leave for 4–6 weeks, then strain.
  • Use topically or as a salve base.
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Herbal Bath

2–3Γ— per week as needed
  • Brew 4–6 tbsp of Polynesian Arrowroot (Pia) in 1 litre of hot water for 15 minutes, strain, and add to a warm bath.
  • Soak for 20–30 minutes.

Contraindications

  • Pregnancy & breastfeeding β€” insufficient safety data; consult your doctor
  • Children under 12 β€” therapeutic dosage not established

Warnings

⚠️ Pregnancy & Breastfeeding

Safety during pregnancy and breastfeeding has not been established for most herbal remedies. Consult your midwife or doctor before use.

⚠️ Allergic Reactions

Discontinue immediately if you experience rash, itching, swelling, or difficulty breathing.

⚠️ Not Medical Advice

This information is for educational purposes only. Always consult a qualified healthcare provider before using herbal remedies.

Drug & herb interactions

No specific drug or herb interactions are documented for Polynesian Arrowroot (Pia) in our references. This doesn’t mean none exist β€” always check with a pharmacist or doctor before combining any new herb with prescription medication.

Where to find in nature

Native region

Various global regions

Climate

Varied

Habitat

Cultivated in traditional medicinal gardens, botanical gardens, and herb farms worldwide

🌿 To see Polynesian Arrowroot (Pia) growing, visit botanical gardens, university plant collections, or specialist herb nurseries near you. If foraging in the wild, always work with an expert identifier β€” never consume a plant you are not 100% certain of.

Where to buy

In store

  • Health food stores (Whole Foods, Natural Grocers, Holland & Barrett, GNC)
  • Naturopathic clinics and integrative medicine practices
  • Specialist herbal apothecaries and herbalist practices
  • Farmers markets with herb vendors

Online

iHerb

Wide selection of standardised extracts, capsules, and powders with lab testing

Mountain Rose Herbs

Premium bulk dried herbs β€” certified organic, ethically sourced

Starwest Botanicals

Large selection of certified organic bulk herbs and powders

Herb Pharm

High-quality liquid extracts and tinctures, rigorous quality standards

Amazon

Convenient β€” verify brand certifications and check third-party testing

Etsy

Small-batch artisan herbalists, hand-harvested and wildcrafted herbs

Quality tips

When buying Polynesian Arrowroot (Pia), look for: certified organic labelling, clearly stated country of origin, third-party lab testing for heavy metals and pesticides, and a batch expiry date. Standardised extracts offer consistent dosing; bulk dried herbs are more economical for regular use. Avoid very cheap, unlabelled products β€” quality varies enormously.