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Quercus robur acorns in various stages of ripening, on an oak plank, Sweden. Quercus robur is planted for forestry, and produces a long-lasting and durable heartwood, much in demand for interior and furniture work. The wood is identified by a close examination of a cross-section perpendicular to fibres. The wood is characterised by its distinct ...
Oak timber is a strong and hard wood with many uses, such as for furniture, floors, building frames, and veneers. [70] The wood of a red oak Quercus cerris (the Turkey oak) has better mechanical properties than those of the white oaks Q. petraea and Q. robur; the heartwood and sapwood have similar mechanical properties. [71]
Quercus robur L. – pedunculate oak, English oak or French oak – Europe, West Asia; Quercus rugosa Née – netleaf oak or Rugosa oak – # southwestern U.S., northwestern Mexico; Quercus × schuettei Trel. — Schuette's oak — US, Canada; Quercus sebifera Trel. – # Mexico; Quercus segoviensis Liebm. – Mexico and northern Central America
Sprouting acorn of Quercus robur Acorns play an important role in forest ecology when oaks are plentiful or dominant in the landscape. [ 6 ] The volume of the acorn crop may vary widely, creating great abundance or great stress on the many animals dependent on acorns and the predators of those animals. [ 7 ]
Quercus sect. Lobatae was established by John Claudius Loudon in 1830. [3] The section, or part of it, has also been treated under names including Quercus sect. Rubrae Loudon and Quercus sect. Erythrobalanus Spach. It has also been treated as the subgenus Erythrobalanus and as the full genus Erythrobalanus (Spach) O.Schwarz. Its members may be ...
Galls (upper left and right) formed on acorns on the branch of a pedunculate (or English) oak tree by the parthenogenetic generation Andricus quercuscalicis.. The large 2 cm gall growth appears as a mass of green to yellowish-green, ridged, and at first sticky plant tissue on the bud of the oak, that breaks out as the gall between the cup and the acorn.
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Sawtooth oak trees also grow at a faster rate which helps it compete against native trees. The wood has many of the characteristics of other oaks, but is very prone to crack and split and hence is relegated to such uses as fencing. [10] Charcoal made using this wood is used especially for the braziers for heating water for the Japanese tea ...