How to Identify Jack-o'-lantern mushroom

Scientific Name: Omphalotus illudens

Jack-o'-lantern mushroom (Omphalotus illudens) identification
Image source: MushroomObserver (CC BY-SA 3.0)

⚠️ Toxicity Warning

This species is recorded as poisonous. Do not consume. Consumption can cause gastrointestinal distress; avoid harvesting unless positively identified.

Description

Omphalotus illudens is a bright orange to yellow mushroom that often grows in clusters. It features a funnel-shaped cap with a wavy margin and is known for its bioluminescent properties in decaying wood.

Key Identification Features

Field marks recorded for this species. Work through all of them, not just one:

Habitat & Distribution

Habitat: Typically found on decaying wood, particularly hardwoods.

Region: North America, particularly in the eastern United States.

Seasonality

Fruits from late summer to fall.

Typical months: Aug-Nov

Common Lookalikes

Always verify identification to avoid these similar species:

Related Species

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Spotted Jack-o'-lantern mushroom? Map It

Pin the sighting and compare this species against its lookalikes in the offline database — confusion runs both ways, and knowing where toxic species fruit makes every future ID safer.

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Disclaimer: This guide is for educational purposes only. Never consume a wild mushroom unless you are 100% certain of its identification.