It has a range extending from
Quebec and
Ontario in the north,
Rhode Island and southern
New York, west to
Manitoba and
Iowa, and south to Northern
Georgia. Smaller, isolated oak–hickory communities can also be found as far west as
North Dakota, south in
Florida and in northeast
Texas, and north to southern
Maine and
Ontario. They can also be found in
Pennsylvania west to
Illinois. Dominated by nut-bearing
oak and
hickory species of trees, the oak–hickory forest has the largest range of any deciduous forest ecosystem in eastern and central North America. ==Natural history==