Wild Species Bluing ✓ Potency: ★★★☆☆

Psilocybe weilii

Common name: Weil's Psilocybe

Field Identification

Cap1.5-4cm; convex to broadly umbonate; tan to caramel-brown; hygrophanous
GillsAdnate to sinuate; initially pale, darkening to purple-brown; close
Stem3-8cm; whitish to pale brown; blue staining at base when handled
Spore PrintDark purple-brown; ellipsoid, 9-12 x 5.5-7 um
HabitatRed clay soils, disturbed grassy areas, roadsides; often near loblolly pine
DistributionSoutheastern USA — primarily Georgia and North Carolina
SeasonLate summer through autumn (August-November)

Key Identification Feature

Southeastern US red clay habitat. Blue staining at stem base. Found in grassy disturbed areas near pines. One of very few Psilocybe species native to the US Southeast.

⚠ Dangerous Lookalikes

Psilocybe cubensis (same region, grows on dung, larger); Stropharia species (non-psychoactive, no bluing)

Notes

One of the few Psilocybe species native to the Southeastern United States. Named in honor of integrative medicine pioneer Dr. Andrew Weil, who was part of the collecting team that found the type specimen. Potency estimated at 0.6-1.1% psilocybin.

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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