Quercus buckleyi, commonly known as Texas red oak, Buckley's oak, or Spanish oak[4][5] is a species of flowering plant.[6][7] It is endemic to the southern Great Plains of the United States (Oklahoma and Texas).[8]

Quercus buckleyi
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. Lobatae
Species:
Q. buckleyi
Binomial name
Quercus buckleyi
Synonyms[2][3]
  • Quercus texana Young
  • Quercus rubra var. texana Engelm.

Buckley's oak is smaller and more likely to be multitrunked than its close relative, the Shumard oak (Q. shumardii). The two species are interfertile, and hybrids are common along a line from Dallas to San Antonio, Texas. Texas red oak usually is 30 to 50 feet (9.1 to 15.2 meters) tall at maturity, and seldom reaches a height of more than 75 feet (23 meters).[9]

Quercus buckleyi was formerly known as Q. texana, but under botanical rules of priority, that name properly refers to Nuttall's oak.[3] This has led to much confusion.[9][10]

It is a highly regarded ornamental and shade tree. In autumn, the leaves turn vivid red and orange.

References

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  1. ^ Kenny, L.; Wenzell, K. (2015). "Quercus buckleyi". IUCN Red List of Threatened Species. 2015: e.T34030A2841110. doi:10.2305/IUCN.UK.2015-4.RLTS.T34030A2841110.en. Retrieved 16 November 2021.
  2. ^ "Quercus buckleyi Nixon & Dorr". World Checklist of Selected Plant Families. Royal Botanic Gardens, Kew – via The Plant List. Note that this website has been superseded by World Flora Online
  3. ^ a b Tropicos search for Quercus texana
  4. ^ "Texas Oak". Trees of Texas. Texas A&M Forest Service. Retrieved 21 June 2023.
  5. ^ Elmer, Nicole L. "Trees of BFL: Spanish Oak". Biodiversity Center. University of Texas at Austin. Retrieved 21 June 2023.
  6. ^ Preston, Richard J.; Braham, Richard R. Quercus buckleyi. In: North American trees. Iowa State Press.
  7. ^ USDA, NRCS (n.d.). "​Quercus buckleyi​". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team.
  8. ^ "Quercus buckleyi". County-level distribution map from the North American Plant Atlas (NAPA). Biota of North America Program (BONAP). 2014.
  9. ^ a b Nixon, Kevin C. (1997). "Quercus buckleyi". In Flora of North America Editorial Committee (ed.). Flora of North America North of Mexico (FNA). Vol. 3. New York and Oxford: Oxford University Press – via eFloras.org, Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
  10. ^ Dorr, L. J. & K. C. Nixon. 1985. Typification of the oak (Quercus) taxa described by S.B. Buckley (1809-84). Taxon 34(2): 211–228.
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