bur oak
An acorn cluster of the bur oak tree.
bur oak definition by Webster's New World
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a North American white oak (Quercus macrocarpa) having large acorns with fringed cups; mossy-cup oak
bur oak definition by American Heritage Dictionary
noun
An oak tree (Quercus macrocarpa) of eastern North America, having pinnately lobed leaves, acorns enclosed within a deep fringed cup, and hard durable wood.
bur oak
Quercus macrocarpa
