Cork oak

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Cork oak Quercus suber


A medium-sized evergreen oak, Quercus suber, native to the Mediterranean region. The cork oak is grown commercially for its thick, spongy bark. The Cork is harvested every 10-12 years. The wood from the cork oak is too brittle for use.

Cork oak Quercus suber

Synonyms and Related Terms

Quercus suber; Korkeiche (Deut.); alcornoque(Esp.); chêne-liège (Fr.); sûrier (Fr.); kurkeik (Ned.); sobreiro (Port.); sughera (It.); quercia da sughero (It.); cork tree

Physical and Chemical Properties

  • Medium sized tree growing to 20 m.
  • Bark=very thick porous, light gray with deep reddish-brown furrows.
  • Leaves = simple ovoid, dark green with wavy toothed edges.
  • Fruit=narrow acorn with loose scaly cap, maturing every year.

Resources and Citations

  • Michael McCann, Artist Beware, Watson-Guptill Publications, New York City, 1979
  • Virginia Tech Dendrology website at (accessed Oct. 8, 2005)
  • Van Nostrand's Scientific Encyclopedia, Douglas M. Considine (ed.), Van Nostrand Reinhold, New York, 1976

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