Bark – young bark is smooth, older bark has flat topped ridges with shallow fissures; inner bark is light red. The northern red oak (Quercus rubra) is a medium sized tree that grows up to 90 feet, is ...

the Northern Red Oak or Quercus rubra. This native species is easily identified by its bark and its acorn. The bark looks like ski tracks or long running ridges that run up and down the sides of the ...

northern red oak, and northern pin oak. The DNR said once a tree is infected, the fungus may fruit - creating distinct gray to black fungal pads under the tree’s bark. Spores can be picked up by ...