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Quercus marilandica is a small deciduous tree growing to 15 meters (49 feet) tall, with bark cracked into rectangular black plates with narrow orange fissures. The leaves are 7–20 centimeters (3–8 inches) long and broad, and typically flare from a tapered base to a broad three-lobed bell shape with only shallow indentations.
Cryphonectria parasitica, a bark pathogen, has been known to infect scarlet oak trees particularly in Pennsylvania. Cankers were found on many of these trees due to this parasite during 1989 and 1990. The parasite was removed from 69.7% of infected areas and recovered from 67% of incidents. [13] Spongy moths are known to defoliate a
Older trees only form short shoots between 7 and 15 cm (3 and 6 in) in length. [6] The thick, longitudinally cracked cork layers of the gray-brown trunk bark are characteristic of the cork oak. The cambium of the smooth bark of young trees forms a cork layer very early on, which can be 3 to 5 cm (1 + 1 ⁄ 4 to 2 in) thick. The light and spongy ...
Cherrybark oak occurs on moist, bottomland sites, while southern red oak typically occurs in drier uplands sites with poor soil. Leaves of southern red oak generally have rounded (U-shaped) bases and fewer, more irregularly shaped lobes than cherrybark. The bark is distinctly different in cherrybark oak and southern red oak.
Quercus nigra is a medium-sized deciduous tree, growing up to 30 meters (98 feet) tall with a trunk up to 1 m (3 ft 3 in) in diameter.Young trees have a smooth, brown bark that becomes gray-black with rough scaly ridges as the tree matures.
It is a tree growing up to 85 feet (25 meters) tall, with dark brown bark. It has leaves with sharp pointed lobes somewhat similar to those of the Georgia oak (Q. georgiana) and pin oak (Q. palustris). [7] It is fast-growing and usually has a pleasing red color in autumn, much more reliably so than the pin oak.
Quercus cerris, the Turkey oak or Austrian oak, [3] [4] is an oak native to south-eastern Europe and Asia Minor. It is the type species of Quercus sect. Cerris , a section of the genus characterised by shoot buds surrounded by soft bristles, bristle-tipped leaf lobes, and acorns that usually mature in 18 months.
Quercus robur, the pedunculate oak or English oak, [3] [4] is a species of flowering plant in the beech and oak family, Fagaceae. It is a large tree, native to most of Europe and western Asia , and is widely cultivated in other temperate regions.