Northern Red Oak Quercus rubra Common Red Oak, Eastern Red Oak, Mountain Red Oak, and Gray Oak Description: A dominant forest tree throughout the state growing to 90' in moist to dry soils. Deer, bear, and many other mammals and birds eat the acorns. It is often planted as a shade tree. The hard strong wood is used for furniture, flooring, millwork, railroad ties and veneer. The red oak group"" includes all oaks with bristle-tipped leaves and acorns ripening over two seasons. USDA Zone: 2b-9a Height: 40 to 60' Width: 30 to 45' Leaf: Alternate, simple, 4""-9"" long, to 6"" wide, with 7-11 bristle-tipped lobes, sinuses between lobes extend half-way to the mid-rib. Smooth, dull green above, paler with small tufts of reddish-brown hair in vein-axils beneath. Flower: Monoecious; males in yellow-green slender, hanging catkins, 2 to 4 inches long; females are borne on short axiliary spikes, appearing with the leaves in spring. Fruit: An acorn,