blackjack oak Fagaceae Quercus marilandica
Leaf:Alternate, simple, 5 to 8 inches long, thickened, with 3 shallow, bristle-tipped lobes near the end of the leaf, upper surface lustrous green, lower surface paler with orange-brown pubescence.
Flower:Species is monoecious; males 2 to 4 inch long hanging catkin; females small, single or paired.
Fruit:Acorn, nut 3/4 inch long often striated, light brown, cap covers about half of the nut and is covered with loose, hairy scales.
Twig:Stout, dark brown and scruffy-hairy, reddish brown buds are 1/4 inch long, sharp, angled and fuzzy.
Bark:Very dark (almost black), rough, with blocky plates and splits.
Form:A small sized tree (20 to 30 feet tall) generally with poor form. It typically has a short trunk with a round crown made up of twisted limbs.