[1] It is a psychoactive species of the Panaeolus genus, containing alkaloids like psilocybin and psilosin.

[3][4] Like all Panaeolus species, they form small mushrooms with black spores and mottled gills.

[5] Psilocybin has a chemical structure similar to that of serotonin, a neurotransmitter involved in mood regulation, concentration, and sleep.

Psilocybin's structure is likely the reason for its effects on serotonin receptors which can impact mood and cause difficulty concentrating, restlessness, and hallucinations.

[8] Therefore, the possession and consumption of psilocybin-containing mushrooms is prohibited by federal law.