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Resource Articles from Gilbert Smith, ISA Board Certified Master Arborist
and Lesley Bruce Smith, ISA Certified Arborist
July / August Tree of the Month • Burr Oak
Burr Oak Quercus macrocarpa
by: Gilbert A Smith, ISA Certified Master Arborist
The Burr Oak, or Quercus macrocarpa, is one of our absolute favorite trees. It’s magnificent stature is a real stand out in the native Illinois prairie. It has a really thick, sometimes several inches, tough craggy bark that just can’t be mistaken for any other species and that same bark makes it able to survive the prairie fires that raged across the Illinois plains in earlier days.