Quercus suber
Common name: 
Cork Oak
Pronunciation: 
KWER-kus SOO-ber
Family: 
Fagaceae
Genus: 
Type: 
Broadleaf
Native to (or naturalized in) Oregon: 
No
  • Broadleaf evergreen tree, 70-100 ft (21-30 m) high, equal spread, short trunk, round crown, thick branches.  Trunk and main limbs covered with thick, corky bark; the cork of commerce, which is removed every 6-8 years.  Leaves alternate, simple, ovate to oval-oblong, 3-7 cm long, acute tip, base rounded to somewhat cordate, margin has 4-5 short teeth on each side, upper surface shiny green, white-gray tomentose below; petiole 8-15 mm long.  Fruit (acorn) 1.5-3 cm long, ovoid-oblong, cap cup-shaped, short stalked.
  • Sun.  Prefers good drainage, tolerant of different soil types. Established trees drought resistant.
  • Hardy to USDA Zone 7      Native to the Mediterranean region.  It is the National Tree of Portugal which produces about half of the world's commercial cork.
  • Oregon State Univ. campus: along Park Terrace, the extension of 25th St. into the campus.
Click image to enlarge
  • plant habit

    plant habit

  • plant habit

    plant habit

  • foliage

    foliage

  • branch

    branch

  • leaves

    leaves

  • leaves

    leaves

  • young acorns

    young acorns

  • fruit (acorn)

    fruit (acorn)

  • trunk, bark

    trunk, bark

  • trunk, bark

    trunk, bark