Jack-o'-lantern mushroom
Omphalotus olearius
The jack-o'-lantern mushroom is a poisonous orange mushroom that grows in clusters on stumps and roots. It contains illudin S and causes severe vomiting, diarrhoea and cramps. It is confused with chanterelles but has sharp true gills and a stem that is orange inside. Its fresh gills glow faintly in the dark.
Where it's found
Clusters on stumps, roots and bases of broadleaf trees, especially olive trees, from early summer to late autumn.
Distribution
Found in southern Europe and Mediterranean countries; also reported from South Africa's Western Cape.
Similar species
Identification suggestions (from the community or from AI) and the information here may be wrong; this app never confirms that anything is safe to eat. Do not consume wild plants, mushrooms or seafood without expert confirmation. Nothing here is medical advice.