Flower: Monoecious, staminate yellow-green flowers borne on elongated clusters of catkins; pistilate flowers are very small, green and borne on a short stalk.
Appear with the leaves.
Fruit: Acorns are 1/2 inch long, orange brown, pubescent when young, scaly, somewhat pubescent cap covers about 1/3 of the nut. Matures in two years in
September or October.
Twig: Orange to reddish brown, often very pubescent with older twigs becoming glabrous. Multiple terminal buds (1/8 to 1/4 inch) are pointed, reddish brown and
have some pubescence on the upper half.
Bark: Initially smooth, but quickly developing small scaly ridges, later becoming dark, scaly and quite rough. At times resembling black cherry bark.
Form: Large tree, with good, straight form, often well over 100 feet tall and over 3 feet in diameter.
