Growing on a piece of treated lumber attached to my boat.
Found growing in a cultivated lawn.
Found in a well fertilized lawn. Bluing at the base. Spore print is jet black.
This is in the Michigan big tree database as the champion Quercus bicolor, but it's not that - might be a hybrid with Q. macrocarpa???? Leaves (tried to look mostly at sunlit ones) varying from branch to branch, running the full gamut from perfectly typical Q. macrocarpa to perfectly typical Q. bicolor. In close proximity to large individuals of both species. However, from what I can find Quercus × schuettii typically has deeply cut leaves.