Highlands dancers in feathered headdresses and traditional dress at the Mount Hagen cultural show, Papua New Guinea.

Oceania · Culture

Kuma (Wahgi Valley)

Kuma, of the middle Wahgi

Highlanders at the Mount Hagen cultural show, in the Western Highlands near the Wahgi Valley — the region of the Kuma. — Photo: Jialiang Gao (peace-on-earth.org) · CC BY-SA 3.0 · Source

Middle Wahgi Valley, Western Highlands, Papua New Guinea

Contested Mystery

In the New Guinea Highlands, the Kuma 'mushroom madness' is one of the most famous cases in ethnomycology — and one of its great cautionary tales. Seasonal episodes of wild behaviour were blamed on certain mushrooms, but investigators could never confirm the mushrooms were the cause.

The mushroom that may not be a drug

Among the Kuma of the middle Wahgi Valley in the New Guinea Highlands, the anthropologist Marie Reay documented, in 1960, a startling seasonal phenomenon she called “mushroom madness” (komugl tai): men and women who, after eating certain wild mushrooms, would shake, shout, brandish weapons, and career through the settlement in a temporary frenzy before returning to themselves.1

The investigation that found nothing

Because this looked like a spectacular Old-World entheogen, Roger Heim and R. Gordon Wasson mounted an expedition to run it down. They identified the mushrooms involved — the nonda boletes, including the vivid Boletus manicus — but, crucially, could not demonstrate any compound that would produce the behaviour.2 The pharmacology simply wasn’t there in the way the story implied.

Why it belongs — as a warning

Many scholars now read the Kuma “madness” as a culturally patterned performance — a sanctioned window in which people could behave in ways otherwise forbidden — that happens to be attributed to mushrooms rather than caused by them. That is exactly why it belongs in this archive: as the classic reminder that a “mushroom tradition” is not always a pharmacological one, and that the honest label here is disputed.

Footnotes

  1. Reay, Mushroom madness in the New Guinea Highlands (1960).

  2. Heim & Wasson, La folie des Kuma (1965).

The record

Names of the mushroom

NameLanguageTranslation / gloss
komugl tai / nonda (various boletes and russulas)Kuma

Indigenous- and local-language names appear in many spellings across dialects, publications, and orthographies. We record them as given in our sources and do not standardise them or invent translations. A dagger (†) marks a form our sources flag as uncertain.

Historical record

  1. 1960

    Reay's 'mushroom madness'

    The anthropologist Marie Reay describes komugl tai — seasonal episodes in which Kuma men and women behaved wildly, said to follow the eating of certain mushrooms.

    Contemporary ethnography
  2. 1965

    Heim and Wasson investigate

    Roger Heim and R. Gordon Wasson identify the nonda boletes (including Boletus manicus) but find no compound that would explain the reported frenzy.

    Botanical / mycological

Evidence

The support for this entry, separated by kind. Different kinds of evidence carry different weight.

Contemporary ethnography
Reay, 'Mushroom madness in the New Guinea Highlands' (1960).
Botanical / mycological
Heim & Wasson, La folie des Kuma (1965) — species identified, psychoactivity not confirmed.
◐ Open questions

What remains uncertain

  • The central question — whether the mushrooms cause the behaviour at all — was never resolved; the 'madness' may be a culturally sanctioned social performance.
Sources & editorial record

Sources & further reading

  1. Marie Reay (1960). Mushroom madness in the New Guinea Highlands. Oceania 31(2): 137–139.

    Classic ethnographic report of "komugl tai" / nonda-associated behaviour among the Kuma of the Wahgi Valley, Papua New Guinea — the anthropological origin of the puzzle.

    Peer-reviewed paperPrimaryLibrary / print

  2. Roger Heim & R. Gordon Wasson (1965). La folie des Kuma: le champignon nonda et Boletus manicus. Cahiers du Pacifique.

    Heim and Wasson investigate the New Guinea "mushroom madness," identifying nonda boletes (including Boletus manicus) without isolating a compound that explains the reported effects.

    Article / essaySecondaryLibrary / print

  3. Andy Letcher (2006). Shroom: A Cultural History of the Magic Mushroom. Faber & Faber.

    A critical cultural history that deflates several popular entheogenic myths — useful precisely where it disagrees with the psychedelic canon.

    BookSecondaryLibrary / print

Editorial record

Corrections history

No corrections recorded yet. Spotted an error or a mischaracterisation? See how corrections work.

Last reviewed

15 July 2026

Communities and scholars may request amendments or the removal of sensitive material.