Quercus glauca

Quercus glauca

  • Quercus glauca
  • Quercus glauca
  • Quercus glauca
  • Quercus glauca
  • Quercus glauca
  • Quercus glauca
  • Quercus glauca
  • Quercus glauca
  • Quercus glauca
  • Quercus glauca
  • Flower name
    Quercus glauca
  • Scientific name
    Quercus glauca
  • Aliasアラガシ, クロガシ, Oak, オーク, どんぐりの木, 粗樫
  • Place of originJapan, Korea and China
  • Place of floweringGarden, Park
  • Flowering seasonApril

What is Quercus glauca

Quercus glauca,Japanese blue oak or arakashi (Quercus glauca) is an evergreen broad-leaved tree in the family Fagaceae native to Japan, Korea and China. It is a member of an evergreen broadleaf forest. Oak (Quercus) is the generic name for the genus Quercus in the beech family. The deciduous tree is called oak and the evergreen tree is called oak. Hence, the scientific name Quercus is given to the oak. The name comes from the hollowed-out trunk and the rough, spindly nature of the oak. It produces acorns in the fall. Speaking of oaks, in the Kanto region, the white oak (Q. myrsinaefolia) In Kansai, Arakashi (Q. acuta).

Common name: Quercus glauca,Scientific name: Quercus glauca , aka: Japanese blue oak or arakashi, origin: Japan, China Distribution: Honshu to Kyushu (west of Miyagi Prefecture), Okinawa, Korea and China, Environment: thickets, living type: evergreen broadleaf trees, Tree height: 20-25 m,
Diameter of the tree: 60 cm, Bark: dark grey, barked and dented, Growth: slightly fast; Ordination: alternate; Leaf height: 7-12 cm; Leaf width: 4 cm; Leaf shape: oblong and oval, inverted Leaf margin: serrated at the tip; leaf color: dark green (front), grayish-white (back); leaf substance: cortex with hairy underside Leaf tip: acute angle, leaf base: broadly cuneiform, petiole: dioecious, dioecious, Flowering time: April-May; male inflorescence: 5-10 cm hanging down from the lower part of the new branch; female inflorescence: 2 or 3 on the sides of bracts Attached, male flower cover: 0.3 cm, Staminodes: 5, inflorescence: 3 to 5 female flowers upright in the leaf axils at the tip of the new branch, number of flower columns: 3, fruit Type: Acorn, Fruiting season: November-December, Fruit length: 2 cm, Fruit shape: husk doule, Use. Trees are garden trees, park trees, garden trees, school trees, street trees, hedges, and timber for construction, equipment and charcoal.


  • Order
    Fagales
  • Family
    Fagaceae
  • Genus
    Quercus
  • Species
    Q. glauca
  • Type of flower
    Other
  • Array of flower
    Caudal inflorescence
  • Petal shape
  • Leaf type
    oblong
  • Edge of the leaf
    Serrated
  • Life typeevergreen broad-leaved tree
  • Flower colorsGreen Yellow
  • Colors of the leavesGreen
  • Fruit colorBrown
  • Height1500.0 ~ 2000.0 cm
  • Diameter of flower5.0 ~ 10.0 cm

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