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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 ...
Quercus alba (white oak) [144] Yields high-quality wood that tolerates a range of soils. The acorns are an important food source for more than 180 wildlife species. Uses: timber; landscaping, sap resins, veneers. [145] All
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]
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.
– California scrub oak – # California; Quercus bicolor Willd. – swamp white oak – eastern and midwestern North America; Quercus × bimundorum E.J.Palmer — two worlds oak; Quercus boyntonii Beadle – Boynton's post oak – south central North America; Quercus canariensis Willd. – Mirbeck's oak or Algerian oak – # North Africa & Spain
The Major Oak in December 2006 Book illustration of the Major Oak in 1879 In 2003, in Dorset a plantation was started of 260 saplings grown from acorns of the Major Oak. [ 5 ] The purpose was to provide publicity for an internet-based study of the Major Oak, its history, photographic record, variation in size and leafing of the saplings ...
Quercus cornelius-mulleri acorns. Quercus cornelius-mulleri is a North American species of oak known by the common name Muller oak, or Muller's oak. It was described to science in 1981 when it was segregated from the Quercus dumosa complex and found to warrant species status of its own. [3] [4] [5] It was named after ecologist Cornelius Herman ...
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 ...