High Quality Content by WIKIPEDIA articles! Psilocybe argentipes (commonly known as Hikageshibiretake in Japanese) is a species of fungus in the Strophariaceae family of mushrooms. It is endemic to Japan. Fruit bodies grow on the ground in woody debris, and typically stand 6 to 8 cm (2.4 to 3.1 in) tall with caps that are 2.5 to 5 cm (1.0 to 2.0 in) in diameter. They are chestnut brown (or lighter brown if dry), and stain blue if bruised or handled. The species is a psychoactive mushroom, and contains the hallucinogenic compounds psilocybin and psilocin. There have been reports of poisoning caused by the accidental consumption of this mushroom. It has been used in research, specifically, to test the effects of its consumption of marble-burying in mice, an animal model of obsessive-compulsive disorder.