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Cracked hazelnut shell displaying the edible seed Hazelnut tree, Turkey. A hazelnut cob is roughly spherical to oval, about 15–25 millimetres (5 ⁄ 8 –1 inch) long and 10–15 mm (3 ⁄ 8 – 5 ⁄ 8 in) in diameter, with an outer fibrous husk surrounding a smooth shell, while a filbert is more elongated, being about twice as long as its diameter.
The shrubs usually grow 3–8 metres (10–26 feet) tall. The nut is round, in contrast to the longer filbert nut. Common hazel is native to Europe and Western Asia. The species is mainly cultivated for its nuts. The name 'hazelnut' applies to the nuts of any species in the genus Corylus, but in commercial contexts usually describes C. avellana.
The American hazelnut grows to a height of roughly 2.5 to 5 m (8 to 16 ft), [6] with a crown spread of 3 to 4.5 m (10 to 15 ft). It is a medium to large shrub, which under some conditions can take the like of a small tree. It is often multi-stemmed with long outward growing branches that form a dense spreading or spherical shape.
Image: Getty. Most edible nuts, like pecans or hazelnuts, grow on trees. But peanuts grow in pods that mature underground and are classified as a legume, like lentils and peas.. Cashews
The shell is indehiscent, meaning it does not open to release the seed. [1] Most seeds come from fruits that naturally free themselves from the shell, but this is not the case in nuts such as hazelnuts, chestnuts, and acorns, which have hard shell walls and originate from a compound ovary.
It made sense to market hazelnuts rather than filberts because more of the world recognized the nuts by that name. The hazelnut became Oregon's official state nut in 1989, but the name filbert ...
As with other nutritious nuts, hazelnuts have been trending up lately. Both demand and production increased over the past 10 years—in the United States, hazelnut crops have increased 55 percent ...
The Celts believed hazelnuts gave one wisdom and inspiration. There are numerous variations on an ancient tale that nine hazel trees grew around a sacred pool, dropping into the water nuts that were eaten by salmon (a fish sacred to Druids), which absorbed the wisdom.