Quercus michauxii Swamp Chestnut Oak. The swamp chestnut oak closely resembles the chestnut oak (Quercus montana), and for that reason has sometimes been treated as a variety of that species. However, the swamp chestnut oak is a larger tree which differs in preferred habitat, and the bark does not have the distinctive deep, rugged ridging of the chestnut oak, being thinner, scaly, and paler gray. It typically grows to around 65 feet (20 meters) tall, though the tallest specimen currently known is over 150 feet (42 meters) tall.