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Quercus robur, the pedunculate oak or English oak, [3] [4] is a species of flowering plant in the beech and oak family, Fagaceae. It is a large tree, native to most of Europe and western Asia , and is widely cultivated in other temperate regions.
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
Oak wood chips are used for smoking foods such as fish, meat, and cheese. [87] [88] In Japan, Children's Day is celebrated with Kashiwa-mochi rice cakes, filled with a sweet red bean paste, and wrapped in a kashiwa oak leaf. [89] The bark of the cork oak is used to produce cork stoppers for wine bottles.
Quercus myrsinifolia is an evergreen oak tree that grows up to 20 metres (66 ft) tall. Leaves are 60–110 × 18–40 mm with serrulate margins; the petiole is 10–25 mm long. The acorns are ovoid to ellipsoid, 14–25 × 10–15 mm, and glabrous with a rounded apex; the flat scar is approx. 6 mm in diameter. Cupules are 5–8 × 10–18 mm ...
Quercus agrifolia, the California live oak, [3] or coast live oak, is an evergreen [4] live oak native to the California Floristic Province.Live oaks are so-called because they keep living leaves on the tree all year, adding young leaves and shedding dead leaves simultaneously rather than dropping dead leaves en masse in the autumn like a true deciduous tree. [5]
The leaf width is approximately one half its length. Each leaf is matte green with an underneath pale green appearance; moreover, the leaf is covered with abundant soft fuzz, yielding an almost velvety feeling. When a fresh leaf is rubbed or broken, an aromatic scent is exuded, evoking a forest odor. The wood is a dull brown approaching yellow.
The Bigelow oak grows to a height of 12 metres (39 feet), with a diameter at breast height of 81 centimetres (32 inches) and gray flaking bark. [1] The leaves range from 3–8 cm (1 + 1 ⁄ 4 – 3 + 1 ⁄ 4 in) long by 2–4.5 cm wide, with shapes Duncan & Duncan describe as "narrowly obovate to oblanceolate or narrowly elliptic", with "broadly rounded and bristleless" tips. [1]
Although live oaks retain their leaves nearly year-round, they are not true evergreens.Live oaks drop their leaves immediately before new leaves emerge in the spring. Occasionally, senescing leaves may turn yellow or contain brown spots in the winter, leading to the mistaken belief that the tree has oak wilt, whose symptoms typically occur in the sum