User:Daveshawley/Brown Oak

Brown Oak is not a species of the Oak tree (Quercus). Instead, it is the result of an Oak tree being infected by the Beefsteak fungus (Fistulina hepatica). The infection changes the heartwood of the tree from its natural color into a distinctive honey brown. This occurs most often when the fungus infects either English Oak (Quercus robur) or Durmast Oak (Quercus petraea) trees in Britian.