Found solitary or in groups on wood chips, sawdust, and hay bales.
Cap initially cylindrical and covered with white/grayish fibrils, becoming white then gray and finally gray-black in age; often deeply grooved with brownish disc; bell-shaped to broadly conic in age; margin inrolled, then curls upward in age. Gills white, then gray, finally black. Stalk white, floccose (smooth in age), dry (J. Solem, pers. comm.).
There are 53 records in the project database.
GA | AL | WA | FR | CL | MO | HO | BA | BC | HA | CE | PG | AA | CV | CH | SM | KE | QA | CN | TA | DO | WI | SO | WO |