Quercus douglasii Hook. & Arn.

Quercus douglasii Hook. & Arn., "(1840)" is an accepted name.

Subgenus Quercus, Section Quercus

See: Nixon, Volume 3 of Flora of North America (1997) Page 490

USA: (California)

• Quercus ransomii Kellogg, (1873)

• Quercus ×alvordiana Eastw., "(1905)"
• Quercus ×eplingii C.H. Mull., "(1938)"
• Quercus ×jolonensis Sarg., "(1918)"
• Quercus ×kinseliae (C.H. Mull.) Nixon & C.H. Mull., "(1994)"

• Quercus douglasii 'Dexter's Blue' Russell, Int. Oaks 31:85 (2020)