Sometimes spelled burr oak, also called mossycup oak and mossycup white oak.  One of the white oaks.   Part of oak  genus Quercus and beech / oak  family Fagaceae.

Native to 🇨🇦 Canada and 🇺🇸 USA central plains and Midwest.

In this area:

due to possible infestation by oak wilt disease  Bretziella fagacearum.

Uses by native peoples
(Ethnobotany database)
  Quercus hosts caterpillars of 534 species
of butterflies and moths, in some areas.

Learn more about bur oak Quercus macrocarpa

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