Overcup oak is a medium to large tree of wetlands, with leaves that have deep sinuses and acorns almost entirely enclosed by the cap (hence "overcup"). The bark is light gray and flaky.
Habitat and range
In Maryland, overcup oak grows in bottomland forests, floodplains, and seasonally wet depressions on the coastal plain. It tolerates prolonged flooding and heavy, poorly drained soils.
Uses and significance
The wood is used for lumber and cooperage. Overcup oak is important in wetland forests and provides acorns and habitat for wildlife. It is less common than many other Maryland oaks but is characteristic of wet bottomlands.