The leaves of this relatively small member of the white oak group have a subtle beauty this time of year. Post oak (Quercus stellata Wangenh.) gets its common name from the fact that it was once used extensively for making fenceposts. The leaf shape is distinctive — the three upper lobes are in the form of a cross. Sewanee religion professor Jerry Smith has seen it often in old churchyards and has surmised that it was often planted beside churches in years past.