Quercus × bimundorum Crimson Spire™
Common name: 
Crimson Spire Oak
KWER-kus bi-mun-DO-rum
Native to (or naturalized in) Oregon: 
  • Deciduous tree, narrow columnar, upright, to 45 ft tall and 15 ft wide (~14 × 4.5 m).  Leaves alternate, simple, obovate with three to five pairs of rounded lobes, 9-15 cm long by 5-9 cm wide, leaf base is rounded to broadly acute, dark green, rusty red in fall.
  • Hardy to USDA Zone 5      Discovered by Willet Wandell in his nursery in Oquawka, Illinois, from a Q. robur seed parent, Q. alba is suspected as being the pollen parent.  Introduced in 1994 by the J. Frank Schmidt Nursery, Boring, Oregon, PP 9103.
  • bimundorum: Latin, bi, two, and mundus, worlds, hence Two Worlds because it is a hyrid of Q. robur English Oak (from the "old world") and Q. alba White Oak, native to Eastern North America (i.e., the "new world").  Similar in tree shape to that of Q. robur 'Fastigiata' as well as in leaf profile.  
  • Oregon State Univ. campus: three trees on the south side of Pharmacy.
Click image to enlarge
  • plant habit

    plant habit

  • leaves


  • leaf, underside

    leaf, underside

  • developing fruit (acorn)

    developing fruit (acorn)

  • mature fruit (acorn)

    mature fruit (acorn)

  • plant habit, fall

    plant habit, fall

  • leafy branch, fall

    leafy branch, fall

  • leaves, fall

    leaves, fall

  • leaf, fall

    leaf, fall