Quercus glauca

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Ring-cupped oak
Quercus glauca Bra65.png
1874 illustration[1]
Quercus glauca4.jpg
Scientific classification
Kingdom:
Plantae
(unranked):
Angiosperms
(unranked):
Eudicots
(unranked):
Rosids
Order:
Fagales
Family:
Fagaceae
Genus:
Quercus
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[2]
Synonyms[3]
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.

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Quercus glauca - MHNT

Quercus glauca (syn. Cyclobalanopsis glauca), also known as ring-cupped oak, Japanese blue oak or glaucous-leaf oak, is an Asian species in the genus Quercus in the beech family. It is native to eastern and southern Asia, mostly in China but also in neighboring countries (Afghanistan, Kashmir, northern and eastern India, Nepal, Bhutan, Myanmar, Vietnam, Korea, and southern Japan).[4]

Quercus glauca is a small to medium-sized evergreen broadleaf tree growing to 15–20 m tall. The leaves are a distinct deep purple-crimson on new growth, soon turning glossy green above, glaucous blue-green below, 6–13 cm long and 2–5 cm broad, with a serrated margin. The flowers are catkins, and the fruit are acorns 1–1.6 cm long, with series of concentric rings on the outside of the acorn cup.[4]

Cultivation and uses

It is planted as an ornamental tree in regions of Europe and North America with mild winters.

References

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External links

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  1. ↑ illustration from D. Brandis, Illustrations of the Forest Flora of North-West and Central India, 1874
  2. ↑ Tropicos, Quercus glauca
  3. ↑ The Plant List, Quercus glauca Thunb.
  4. ↑ 4.0 4.1 Flora of China, Cyclobalanopsis glauca (Thunberg) Oersted, 1867. 青冈 qing gang
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