In southern New England, black oak grows on cool, moist soils. Quercitron definition, an oak, Quercus velutina, of eastern North America, the inner bark of which yields a yellow dye. The leaves of the black oak are alternately arranged on the twig and are 10–20 cm (4–8 in) long with 5–7 bristle-tipped lobes separated by deep U-shaped notches. Difficult to transplant because of deep taproot. Oak wilt (Bretziella fagacearum) is a potentially serious vascular disease of black oak that is widespread throughout the eastern United States. The post oak is a type of white oak tree that is one of the smaller species in the genus Quercus. Range may be expanded by … Twigs dark reddish brown, (1.5-)2.5-4.5(-5) mm diam., glabrous or sparsely pubescent. Black oak is infrequently attacked by the common diseases of oaks which include oak wilt, chestnut blight, shoestring root rot, anthracnose, oak leaf blister, cankers, leaf spots and powdery mildew. Inner bark is yellow to orange. Resembles Q. velutina, but the inner bark is only slightly yellow. Height 35' to 75' with a diameter of 9" to 30"; clear trunk for 20' or more on large trees; crown wide and irregularly shaped. Family: Fagaceae; Medium-sized to large tree; Open, spreading crown; ... Bark. Dark and grey ... more ridged bark found on more mature trees; Orange inner bark distinguishes it from Northern Red Oak (Quercus rubra) Distribution & Uses. Many of the killed trees sprout and form a new stand. 1785. ... Quercus velutina . Tunneling insects that attack the boles of black oak and cause serious lumber degrade include the carpenter worm (Prionoxystus robiniae), red oak borer (Enaphalodes rufulus), the twolined chestnut borer (Agrilus bilineatus), the oak timber worm (Arrhenodes minutus), and the Columbian timber beetle (Corthylus columbianus). In southern Indiana, decreasing site quality was associated with increasing slope steepness. These species are easily confused. Lobatae) group, being one parent in at least a dozen different named hybrids.. , Young leaves are densely pubescent (hairy). It usually grows to about 25 m (80 feet) tall and may grow to 45 m on rich soils; it is common on exposed slopes and ridges, as it cannot tolerate shade. In forest stands, black oak begins to produce seeds at about age 20 and reaches optimum production at 40 to 75 years. Schafale, M. P. and Weakley, A. S. (1990). Wood - heavy, hard, strong, coarse grained. After the over story is removed, only the large stems are capable of competing successfully.  It is sometimes called the eastern black oak.. Quercus velutina was previously known as yellow oak due to the yellow pigment in its inner bark, however nowadays this name is usually reserved for chinkapin oak. Quercus velutina, commonly called black oak, is a large, deciduous oak of the red oak group that typically grows 50-60’ tall with a globular, spreading crown. It is similar in appearance to red oak (Quercus rubra) with which it may on occasion hybridize. Range may be expanded by planting. It tends to show the bark and growth habit of Q. palustris along with the involucral bracts of Q. velutina. The most common vines are greenbrier (Smilax spp. In more open areas, the crown is rounder and closer to the ground. Foliage diseases that attack black oak are the same as those that typically attack species in the red oak group and include anthracnose (Gnomonia quercina), leaf blister (Taphrina spp.  Some key characteristics for identification include that leaves grown in the sun have very deep u-shaped sinuses and that the buds are velvety and covered in white hairs.. Large tree ; open, spreading crown ;... bark about the same as northern red oak Quercus. The over story is removed, only the large stems are capable competing... Schafale, M. P. and Weakley, A. S. ( 1990 ), unbroken vertical strips smooth. 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