Quercus ×lesueuri C.H. Mull.
Full name:
Quercus ×lesueuri C.H. Mull., in Notes on American Flora, Chiefly Mexican, American Midland Naturalist Vol. 27, No. 2, 470-490 (1942) pro sp. as "Q. LeSueuri" is an accepted name.
Infrageneric Classification:
Subgenus Quercus, Section Quercus
Parentage:
Q. arizonica Sarg. × Q. gambelii Nutt.
Nomenclature Note:
Spellenberg in Spellenberg, Richard, Quercus lesueuri, un miembro meridional del complejo de Q. x undulata (Fagaceae, subgénero Quercus) Acta Botánica Mexicana, núm. 42, pp. 25 - 33 (1998) says it can be regarded as a syn. Of Q. x undulata sensu lato but it has a different parentage and is a different taxon to Q. x undulata sensu stricto. This name is therefore accepted here.
Natural Distribution:
Mexico: Chihuahua