Schizophyllum commune is a species of fungus in the genus Schizophyllum

The species was regarded as nonpoisonous by Orson K. Jr. and Hope H. Miller, who considered it to be inedible due to its to smallness and toughness.[8] More recently, it has been found to cause disease,[9] including that of the lungs. They have also been reported to cause sinusitis and allergic reactions.[3] Because the mushrooms absorb moisture, they can expand during digestion. However, some sources indicate that it contains antitumor and antiviral components.[3]