Wild Species Potency: ★☆☆☆☆

Gymnopilus spectabilis

Common name: Big Laughing Gym, Spectacular Rustgill

Field Identification

Cap5-20cm; broadly convex; bright orange-yellow to rusty-orange; dry; firm flesh
GillsAdnate to slightly decurrent; crowded; initially pale yellow, becoming rusty-orange with spores
Stem5-15cm; fibrous; same color as cap; ring present; base often attached to wood
Spore PrintRusty-orange to rust-brown; ellipsoid to almond-shaped, 7-10 x 4-6 um
HabitatDecaying hardwood stumps, large logs, roots; sometimes conifers
DistributionNorth America, Europe, East Asia, Australia — worldwide on hardwoods
SeasonLate summer through autumn

Key Identification Feature

Large size, vivid orange color, rusty spore print (NOT purple-brown), bitter taste. Grows on or at base of dead hardwood. Variable psychoactive content — many specimens contain no psilocybin.

⚠ Dangerous Lookalikes

Gymnopilus junonius (closely related, also variable activity, similar appearance); Pholiota species (non-psychoactive, similar habitat); Flammulina (velvet shank, different structure)

Notes

Unlike true Psilocybe species, G. spectabilis does NOT have a purple-brown spore print — spores are rusty-orange. Psychoactive alkaloid content varies enormously between specimens; some contain no psilocybin. Associated with uncontrollable laughter in traditional Japanese accounts — possibly the origin of soma legends in some theories.

Legal Status Warning Psilocybin-containing mushrooms are controlled substances in most jurisdictions. This guide is for educational purposes only. Wild foraging for psilocybin mushrooms may be illegal in your location. Never consume wild mushrooms without positive identification from an expert mycologist — misidentification can be fatal.

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