Overcup oak is a Missouri native growing mostly in bottomlands along the Mississippi River and in the Missouri Bootheel. It gets its common name from its rounded nut which is almost covered by its cap.
It is a deciduous oak of the white oak group, growing up to 40 – 60 feet. The insignificant spring female flowers produce the acorns which mature in fall. The leaves are deep green with fuzzy undersides and deep rounded lobes.