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Some sources say an oak can provide around 100 to 200 kilograms (220 to 440 pounds) of cork over its lifespan, and one hectare around 200 to 500 kg (440 to 1,100 lb) per year [23] while others suggest a single tree can produce on average 40 to 60 kg (88 to 132 lb) of cork per harvest, [22] a comparatively higher value, as cork oaks can live ...
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The flowers are wind-pollinated catkins produced in mid spring, maturing about 18 months after pollination; the fruit is a globose acorn, 1.5–2 cm (5 ⁄ 8 – 3 ⁄ 4 in) diameter, two-thirds enclosed in the acorn cup, which is densely covered in soft 4–8 millimetres (3 ⁄ 16 – 5 ⁄ 16 in) long 'mossy' bristles.
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Quercus hartwissiana Steven – Strandzha oak – southeastern Bulgaria, northern Turkey, western Georgia, southwestern Russia; Quercus havardii Rydb. – Havard oak, shinnery oak, shin oak – south central North America †Quercus hiholensis — Miocene — # Washington State [4] Quercus hinckleyi C.H.Mull. – Hinckley oak – # Texas ...
Cork tree or corktree may refer to: Cork oak, Quercus suber, the tree from which most cork is harvested; Chinese cork oak, Quercus variabilis, a tree from which cork is occasionally harvested; Cork-tree, a species of Phellodendron; Euonymus phellomanus, a large deciduous shrub with corky “wings” Indian cork tree, Millingtonia hortensis
Acorns are rich in vitamins, nutrients and minerals that help to support heart, bone and muscle health, as well as energy, metabolism and brain function, according to Best.
Quercus macrocarpa is a large deciduous tree growing up to 30 metres (98 feet), rarely 50 m (160 ft), in height, [3] and is one of the most massive oaks with a trunk diameter of up to 3 m (10 ft).