An acorn cluster of the bur oak tree.
bur oak
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a North American white oak (Quercus macrocarpa) having large acorns with fringed cups; mossy-cup oak
bur oak
noun
A deciduous oak tree (Quercus macrocarpa) of eastern North America, having deeply lobed leaves, acorns enclosed within a deep fringed cup, and hard durable wood.
bur oak
Noun
(plural bur oaks)
- Quercus macrocarpa.
