List of Quercus species

[1] The genus, as is the case with many large genera, is divided into subgenera and sections.

The sections of subgenus Quercus are mostly native to the New World, with the notable exception of the white oaks of sect.

In contrast, the sections of the subgenus Cerris are exclusively native to the Old World.

[2] Unless otherwise indicated, the lists which follow contain all the species accepted by Plants of the World Online as of February 2023[update], plus selected hybrids that are also accepted,[1] with placement into sections based on a list produced by Denk et al. for their 2017 classification of the genus.

[citation needed] Species in section Ilex are native to Eurasia and northern Africa.

[2] Styles medium-long; acorns mature in 12–24 months, appearing hairy on the inside.

)[citation needed] The ring-cupped oaks (synonym genus Cyclobalanopsis), native to eastern and southeastern tropical Asia.