Quercus × bimundorum (or Quercus bimundorum), known as two worlds oak, is a naturally occurring hybrid of white oak, Quercus alba (from the New World), and pedunculate oak, Quercus robur (introduced from the Old World). It occurs sporadically where they come in contact in the United States.[2]

Quercus × bimundorum
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Rosids
Order:	Fagales
Family:	Fagaceae
Genus:	Quercus
Species:	Q. × bimundorum
Binomial name
Quercus × bimundorum E.J.Palmer[1]

A tree reaching 12 m, there are commercial cultivars available, including 'Crimschmidt', trade designation Crimson Spire, with a columnar growth form, and 'Midwest', trade designation Prairie Stature, with a pyramidal growth form.[3]

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