Sometimes spelled burr oak, also called mossycup oak and mossycup white oak.  One of the white oaks.   Part of oak  genus Quercus in beech / oak  family Fagaceae and bayberry / beech / birch / oak / walnut  order Fagales.

Native to 🇨🇦 Canada and 🇺🇸 USA, east of the 🗻︎ Rocky Mountains.

In this area:

due to possible infestation by oak wilt disease (OWD)  Bretziella fagacearum.

Uses by native peoples
(Ethnobotany database)

Quercus hosts caterpillars of 534 species
of butterflies and moths, in some areas.
  Bloom dates (Michigan) (.pdf page 7). Planting info (SW Michigan) (.pdf).

Learn more about bur oak Quercus macrocarpa

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