Bur Oak
Order: Fagales
Family: Fagaceae
Genus: Quercus
Species: Q. macrocarpa
General chestnut blight, shoestring root rot, anthracnose, oak leaf blister, cankers, leaf spots and powdery mildew. Potential insect pests include scale, oak skeletonizer, leaf miner, galls, oak lace bugs, borers, caterpillars and nut weevils. Notwithstanding the aforementioned, bur oak is generally considered to be a low-maintenance, long-lived tree.Characteristics: The leaves of Quercus macrocarpa are simple, alternate and lobed. It can be distinguished from the other oaks by the blunt lobes, most leaves with a single pair of deep sinuses, corky ridges on the branches, and the fringe along the margin of the acorns. Quercus macrocarpa ranges from Manitoba to Texas, east through Tennesee and West Virginia to Maine and Quebec (absent from the Atlantic coastal states). It is common and distinctive in southern Wisconsin, and is found to a lesser extent throughout the state, although it is apparently absent in Door County, or nearly so. Habitat is most often drier sites, and it is well known for tolerance to fire, but it is sometimes also found on moist sites.
Special Characteristics: Oaks are susceptible to a large number of diseases, including oak wilt.
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