Quercus glauca

Ring-cupped oak
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Rosids
Order:	Fagales
Family:	Fagaceae
Genus:	Quercus
Subgenus:	Quercus subg. Cerris
Section:	Quercus sect. Cyclobalanopsis
Species:	Q. glauca
Binomial name
	Quercus glauca; Thunb. 1784 not F. Buerger ex Blume 1851 nor Martrin-Donos & Timb.-Lagr. 1864 nor Bosc ex Loisel. 1825 nor Oerst. 1869
Synonyms
	List Cyclobalanopsis amamiana (Hatus.) Masam. ; Cyclobalanopsis glauca (Thunb.) Oerst. ; Cyclobalanopsis globosa T.P.Lin & T.S.Liu ; Cyclobalanopsis repandifolia (J.C.Liao) J.C.Liao ; Cyclobalanopsis sasakii (Kaneh.) Kudô & Masam. ; Cyclobalanopsis vibrayana (Franch. & Sav.) Schottky ; Perytis glauca (Thunb.) Raf. ; Quercus amamiana Hatus. ; Quercus bambusifolia Fortune 1860 not Hance 1857 ; Quercus dentosa Lindl. ex Wall. name published without description ; Quercus globosa (T.P.Lin & T.S.Liu) J.C.Liao ; Quercus ichangensis Nakai ex A.Camus ; Quercus lacera Blume ; Quercus laxiflora Lindl. ex Wall. name published without description ; Quercus longipes Hu 1951, not Steven 1857 ; Quercus lotungensis Chun & W.C.Ko ; Quercus matasii Siebold ; Quercus repandifolia J.C.Liao ; Quercus sasakii Kaneh. ; Quercus tranninhensis Hickel & A.Camus ; Quercus vaniotii H.Lév. ; Quercus vibrayeana Franch. & Sav. ;

Quercus glauca (syn. Cyclobalanopsis glauca), commonly called ring-cupped oak or Japanese blue oak, is a tree in the beech family (Fagaceae). It is native to eastern and southern Asia, where it is found in Afghanistan, Bhutan, China, northern and eastern India, southern Japan, Kashmir, Korea, Myanmar, Nepal, Taiwan, and Vietnam. It is placed in subgenus Cerris, section Cyclobalanopsis.