United States, Illinois, Massac, Along 2275. Approximately 3.5 mile southeast of Unionville. North side of this road where it bends east. Straight north of southeast end of Kinneman Lake.
Associates: Quercus macrocarpa, Q. michauxii, Q. egglestonii. Have collected from these trees before with Bill Hess. Large trees. Bark tight bove to slightly furrowed/3d at base. Inner bark buff. Slightly turbinate and flat caps BOTH present. Bottom land of the Ohio River. To 80 feet tall, To 3 feet d.b.h.