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bur oak

an oak tree, Quercus macrocarpa, of eastern North America, having shiny, dark-green leaves, light-gray deeply ridged bark, and very large acorns with a fringed cup, yielding a hard, durable wood: the state tree of Illinois.
Origin of bur oak
1805-15, Americanism Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for bur oak
  • Mast-producing trees such as bur oak and hackberry have also been planted at this site.
  • The north-facing slopes are characterized by a relatively narrow zone of bur oak skirting the prairie.
  • bur oak dominates the driest sites as long as fires occur frequently.
British Dictionary definitions for bur oak

bur oak

an E North American oak, Quercus macrocarpa, having fringed acorn cups and durable timber
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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