Fagaceae
Ring-cup oak
Quercus glauca
- Family
- Fagaceae
- Genus
- Quercus
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Common names
By language (14)
- Arabic
- سنديان أغبر
- Armenian
- Կաղնի կապտավուն
- arz
- سنديان اغبر
- Cantonese
- 青岡櫟
- Catalan
- Roure japonès
- Chinese
- 波緣葉櫟, 青冈栎, 青刚栎, 青剛櫟, 铁椆, 青冈, 圓果青剛櫟, 校欑
- English
- Ring-cup oak, Glaucous-leaf oak, Japanese blue oak, Ring-cupped oak
- Japanese
- アラカシ, クロガシ, ナラバガシ, 粗樫
- Latvian
- Zilganais ozols
- Persian
- بلوط آبی ژاپنی
- pwn
- Vilaw
- Russian
- Дуб сизый
- tay
- Nabasi'uy
- trv
- Raus
Synonyms
- Cyclobalanopsis amamiana (Hatus.) Masam.
- Cyclobalanopsis glauca Oerst.
- Cyclobalanopsis glauca f. latifolia (Nakai) Hiyama ex Sugim.
- Cyclobalanopsis glauca var. elongata (Honda) Sugim.
- Cyclobalanopsis glauca var. kuyuensis (J.C.Liao) J.C.Liao
- Cyclobalanopsis glauca var. lacera (Blume) Sugim.
- Cyclobalanopsis glauca var. latifolia Nakai
- Cyclobalanopsis glauca var. linearifolia (Koidz.) Sugim.
- Cyclobalanopsis glauca var. stricta (Makino) Sugim.
- Cyclobalanopsis globosa Lin & T.Liu
- Cyclobalanopsis repandifolia (J.C.Liao) J.C.Liao
- Cyclobalanopsis sasakii (Kaneh.) Kudô & Masam.
- Cyclobalanopsis vibrayana (Franch. & Sav.) Schottky
- Perytis glauca Raf.
- Quercus acuta var. bambusifolia G.Nicholson
- Quercus amamiana Hatus.
- Quercus bambusifolia Fortune
- Quercus blakei var. vaniotii (H.Lév.) Chun
- Quercus dentosa Lindl.
- Quercus glauca f. lacera (Blume) Kitam.
- Quercus glauca subsp. euglauca A.Camus
- Quercus glauca var. amamiana (Hatus.) Hatus. ex H.Ohba
- Quercus glauca var. amamiana (Hatus.) Hatus.
- Quercus glauca var. caesia Blume
- Quercus glauca var. elongata Honda
- Quercus glauca var. kuyuensis J.C.Liao
- Quercus glauca var. lacera (Blume) Matsum.
- Quercus glauca var. linearifolia Koidz.
- Quercus glauca var. micrococca Maxim. ex Franch. & Sav.
- Quercus glauca var. podocupula C.F.Shen
- Quercus glauca var. stricta Makino
- Quercus glauca var. villosa Skan
- 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.
- Quercus longipes Hu
- Quercus lotungensis Chun & W.C.Ko
- Quercus matasii Siebold
- Quercus repandifolia J.C.Liao
and 4 more.
Photos
Photo: Agnes Trekker, CC0, from iNaturalist 
Photo: KENPEI, CC BY-SA 3.0, from Wikimedia Commons 
Photo: WATANABE Hitoshi 渡辺仁, CC BY 4.0, from iNaturalist 
Photo: KENPEI, CC BY-SA 3.0, from Wikimedia Commons 
Photo: 呂一起(Lyu yi-chi), CC BY 4.0, from iNaturalist 
Photo: KENPEI, CC BY-SA 3.0, from Wikimedia Commons 
Photo: WATANABE Hitoshi 渡辺仁, CC BY 4.0, from iNaturalist 
Photo: Krzysztof Ziarnek, Kenraiz, CC BY-SA 4.0, from Wikimedia Commons 
Photo: 如此甚好, CC BY 4.0, from iNaturalist 
Photo: Krzysztof Ziarnek, Kenraiz, CC BY-SA 4.0, from Wikimedia Commons 
Photo: 呂一起(Lyu yi-chi), CC BY 4.0, from iNaturalist 
Photo: Krzysztof Ziarnek, Kenraiz, CC BY-SA 4.0, from Wikimedia Commons
More in Quercus
- Pedunculate oakQuercus roburFagaceae
- Cork oakQuercus suberFagaceae
- Sessile oakQuercus petraeaFagaceae
- Holm oakQuercus ilexFagaceae
- European turkey oakQuercus cerrisFagaceae
- Northern red oakQuercus rubraFagaceae
- Downy oakQuercus pubescensFagaceae
- Kermes oakQuercus cocciferaFagaceae
- Pin oakQuercus palustrisFagaceae
- White oakQuercus albaFagaceae
- Hungarian oakQuercus frainettoFagaceae
- Daimyo oakQuercus dentataFagaceae
Sources: classification, synonyms from World Flora Online Plant List (2026-06, CC0 1.0); common names, popularity from Wikidata (2026-10-26, CC0 1.0); common names, US characteristics from USDA PLANTS Database (2025-05-29, CC0 1.0). About our plant data.