Liberty Cap is a common name for the mushroom species Psilocybe semilanceata, which is known for its psychoactive properties. This mushroom contains the compounds psilocybin and psilocin, which can induce altered states of consciousness, visual distortions, and changes in perception. It typically grows in grassy fields and is often found in temperate regions. These mushrooms are small, with a distinctive conical cap that resembles a liberty bell, hence the name. Liberty Caps have been used in various cultures for spiritual and recreational purposes. However, they are classified as a controlled substance in many countries, making their use illegal in some areas.