Quercus
this tree has simple, alternately arranged leaves that are oblong shaped and don't have lobes, smaller acorn with 1/3 cap coverage, gray brown bark with shallow furrows, yellow-brown-red fall color
quercus imbracaria/shingle oak
this tree has small simple, alternately arranged leaves with shallow, rounded lobes, leaves have a pair of "ear lobes" at base and a short petiole, acorn is long and narrow with 1/3 cap coverage, bark is gray-black
quercus robur/english oak
this tree has simple, alternately arranged leaves with rounded lobes, leaves have lots of variation and can be separated into 3 parts: upper leaf has a lot of surface and shallow lobes, middle leaf has deeply cut lobes, lower leaf ends in a V shape, acorn has a fuzzy cap with fringed edge and has almost full coverage, older bark can have thicker cork layer, dull yellow-green fall color
quercus macrocarpa/bur oak
this tree has large simple, alternately arranged leaves with 7-9 bristle tipped leaves that tend to be symmetrical and glossy green, lobes are not as deeply cut, large acorn with a short cap, bark is dark gray and has distinct ridges that look like ski tracks, red fall color
quercus rubra/norther red oak
this tree has simple, alternately arranged leaves with shallow lobes that look like duck feet, buds are coated with rusty brown hairs, acorn has 3/4 cap coverage, smaller tree with a scruffy-like appearance, bark is dark grayish-black and platy, yellow-brown to red fall color
quercus marilandica/blackjack oak
this tree has simple, alternately arranged leaves with rounded lobes, leaf resembles a cross shape, acorn is small and short and has 1/3 cap coverage, gray-brown scaly bark that becomes ridged and furrowed with age, golden brown fall color
quercus stellata/post oak
this tree has simple, alternately arranged leaves that are oblong shaped and have coarsely serrated margins, leaves are a yellowish green color, have prominent ridges/lines on surface, longer acorn with a more purple-brown color, and 1/3 cap coverage, ashy-gray bark that's rough and flaky, yellow-orange-brown fall color
quercus muehlenbergii/chinkapin oak
this tree has simple, alternately arranged leaves with bristle tipped lobes, leaves have variation in sinuses, small acorn with bigger scales and 1/3-1/2 cap coverage, shallow ridged and furrowed black bark, yellow fall color
quercus velutina/black oak
this tree has small simple, alternately arranged leaves with bristle tipped, deeply cut lobes center lobes, pink patches on underside of leaf (iron chlorosis is common with this tree), branching structure can be seen in 3rds: top branches grow upward, middle grow horizontal, and bottom grow downward, acorn is small and bulbous with cap covering just the top, gray-brown bark, bronze to red fall color
quercus palustris/pin oak