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What kind of oak produces an acorn as big as a pinpong ball ,mostly overcup, with only about 15 percent of the nut protruding from the bottom? I am from Arkansas.

Last Updated: September 14, 2011

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This sounds like the acorn of the bur oak (Quercus macrocarpa). This oak has a normal height of 60 to 80 feet with a 30- to 50-foot spread. It has huge leaves, 6 to 10 inches long and 4 to 5 inches wide, and is native to the eastern United States.

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What kind of oak produces an acorn as big as a pinpong ball ,mostly overcup, with only about 15 percent of the nut protruding from the bottom? I am from Arkansas.

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