Found on the ground at bases of hardwood trees and stumps, primarily oaks (J. Solem, pers. comm.). Mistakenly listed as M. giganteus (which does not occur in NA) in many field guides. Fruits throughout the season from spring into fall (L. Biechele, pers. comm.).
Fruiting body: Light yellowish-gray to gray-brown in age; fan/spoon-shaped; margin thin, wavy/lobed; stains black when fresh (instant or slowly); flesh white, fibrous; to 16" (41 cm) or more. Pores: White/creamy-white, stain black. Stalk: Ochre to red brown; stains black (J. Solem, pers. comm.).
There are 145 records in the project database.
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