Tree Species of the World's Boreal Forests

Herbs, Shrubs and Other Plants

Terminology | Pictorial

Quercus robur
Common Oak
Fabaceae (Oak Family)

A large deciduous tree with a rounded, broad crown; branching is upright and spreading; growing to a height of 30 - 40 m.


Common Oak Distinguishing Features - Leaves: alternate, 5 - 12 cm long with 6 to 14 shallow, rounded lobes; color, dark green, olive green or blue-green; leaf base is ear-shaped or auriculate; leaves remain green late into autumn. Flowers: monoecious, male flowers are yellow-green catkins. Fruit: small elongated acorns 1 - 1.5 cm wide and 1.5 - 2.5 cm long, borne singly or in clusters up to five. Bark: dark-brown to almost black, ridged and furrowed.


Native to Europe and western Asia; usually found in mixed woodlands; prefers basic, well-drained, fertile soils, including heavy soils; tolerant of city conditions.


The Common Oak is a long-living species; some trees have been known to live over 1,000 years. Its strong, durable wood is used to make casks for storing wines and spirits during aging.

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