⚠ If you suspect ingestion of this species, call Poison Control immediately:
1-800-222-1222 (US) · poison.org

Mexican Psilocybe

Psilocybe mexicana

⚠ Mildly Toxic

Monitor symptoms; call Poison Control if they persist: 1-800-222-1222

Cap color: Brown to straw-colored
Cap size: Small (1-3 cm)
Gill color: Gray-brown to purple-brown
Gill attachment: Adnate to adnexed
Stem: Slender, pale to brown, fibrous; turns blue when damaged
Texture: Fragile and thin
Habitat: Humid meadows, roadsides, mossy areas; Central America and southern Mexico range
Fruiting season: June–October
Peak season: Summer-Fall

Key Identification Features

Small brown to straw-colored cap
blue staining when bruised
thin stem with silky fibers
brown gills
subrhomboid spores
often forms sclerotia (teonanacatl)

Symptoms & Toxicity

Hallucinations, altered perception, euphoria, anxiety due to psilocybin and psilocin; onset 30–60 minutes; duration 4–6 hours

Regions Found

Region data not available

Look-Alikes

No documented look-alikes on record.

Safety disclaimer: This page is for educational purposes only. Never eat a wild mushroom based solely on online information. Always verify identification using multiple reliable field guides and, when possible, consult an experienced forager or mycologist. When in doubt, don't eat it. Spore & Scout accepts no responsibility for identification errors or adverse reactions. If you believe someone has ingested a toxic mushroom, call Poison Control (1-800-222-1222) immediately.