Editing Quercus palustris (section)

=== Associated forest cover ===

Pin oak is a major species in only one forest cover type, '''pin oak–sweetgum''', which is found on bottom lands and some upland sites throughout the central portion of the pin oak range. Pin oak and sweetgum (''[[Liquidambar styraciflua]]'') vary in their relative proportions in this cover type. Large areas of almost pure pin oak occur on the "pin oak flats" of the upland glacial till plains or in the bottom lands of the lower Ohio and central Mississippi River valleys.{{r|USDA}} Associated species in this forest type include red maple (''[[Acer rubrum]]''), American elm (''[[Ulmus americana]]''), black tupelo (''[[Nyssa sylvatica]]''), swamp white oak (''[[Quercus bicolor]]''), willow oak (''[[Quercus phellos]]''), overcup oak (''[[Quercus lyrata]]''), bur oak (''[[Quercus macrocarpa]]''), green ash (''[[Fraxinus pennsylvanica]]''), Nuttall's oak (''[[Quercus texana]]''), swamp chestnut oak (''[[Quercus michauxii]]''), and shellbark (''[[Carya laciniosa]]'') and shagbark (''[[Carya ovata]]'') hickories.<ref name="USDA"/>

Pin oak is an associated species in [[silver maple]]–American elm forests in the bottom lands along the Ohio, Wabash, Mississippi, and Missouri Rivers. A variant of this type, silver maple–American elm–pin oak–sweetgum, is found along major streams in southern Illinois and Indiana.<ref name="USDA"/>

Pin oak also occurs in [[black ash]]–American elm–[[red maple]] forests in poorly drained bottom lands in northern Ohio and Indiana along with silver maple (''[[Acer saccharinum]]''), swamp white oak, sycamore (''[[Platanus occidentalis]]''), black tupelo, and eastern cottonwood (''[[Populus deltoides]]'').<ref name="USDA"/>