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] Its parents are both placed in Quercus sect. Quercus.[3]

Quercus × bimundorum
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fagales
Family: Fagaceae
Genus: Quercus
Subgenus: Quercus subg. Quercus
Section: Quercus sect. Quercus
Species:
Q. × bimundorum
Binomial name
Quercus × bimundorum

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.[4]

References

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  1. ^ J. Arnold Arbor. 29: 18 (1948)
  2. ^ "Quercus × bimundorum E.J.Palmer". Plants of the World Online. Board of Trustees of the Royal Botanic Gardens, Kew. 2017. Retrieved 19 October 2020.
  3. ^ Denk, Thomas; Grimm, Guido W.; Manos, Paul S.; Deng, Min & Hipp, Andrew L. (2017-11-02). "Appendix 2.1: An updated infrageneric classification of the oaks" (xls). figshare. Retrieved 2023-02-17.
  4. ^ Breen, Patrick (2020). "Quercus × bimundorum". Landscape Plants. Oregon State University. Retrieved 19 October 2020.