|Family: Fagaceae (View Members of Fagaceae)
Genus and species: Quercus palustris
Leaves: The leaves are 3-5" (7.5-13cm) long and 2-4" (5-10cm) wide. (View Measured Leaf) Since they fall under the lobed leaves category, they contain 5-7 lobes that are each bristle-tipped at the end. The lobes are very deep, forming wide, rounded sinuses. The leaves are shiny green on top, paler beneath with tufts of hair along the midvein.
Bark: The bark is dark gray and tends to be smoother than that of other oaks, but is slightly fissured into short scaly ridges.(View Bark)The tree tends to have many twigs that are very slender and "pin-like".
Fruit: Since this is an oak, it has acorns as the fruit of the tree. They are 0.5" (13mm) in length and so broad that they are almost round. They have a pointed tip at the bottom (opposite the cap). The cap is saucer-shaped and covers about 1/4 of the fruit and it is usually flush with the side of the acorn.(View Fruit)
Tree: The tree can grow 50-70' (15-21m), has a straight trunk and spreading branches. The crown is usually broad, as pictured to the left.
Range and Habitat: These trees can be found from Ontario to Vermont, south to North Carolina, west to Oklahoma and north to Iowa. They are most commonly found in wet areas that are poorly drained.
Pin Oak Tree (Brandeis University, Waltham, MA, 10/9/02)