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For other uses, see Hazel (disambiguation).
Hazel
Corylus avellana 0001.JPG
common hazel (Corylus avellana)
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Rosids
Order: Fagales
Family: Betulaceae
Genus: Corylus
L.
Synonyms[1]

Lopima Dochnahl

The hazels (Corylus) are a genus of deciduous trees and large shrubs native to the temperate Northern Hemisphere. The genus is usually placed in the birch family Betulaceae,[2][3][4][5] though some botanists split the hazels (with the hornbeams and allied genera) into a separate family Corylaceae.[6][7] The fruit of the hazel is the hazelnut.

Hazels have simple, rounded leaves with double-serrate margins. The flowers are produced very early in spring before the leaves, and are monoecious, with single-sex catkins, the male catkins are pale yellow and 5–12 cm long, and the female ones are very small and largely concealed in the buds, with only the bright-red, 1- to 3-mm-long styles visible. The fruits are nuts 1–2.5 cm long and 1–2 cm diameter, surrounded by an involucre (husk) which partly to fully encloses the nut.[4]

The shape and structure of the involucre, and also the growth habit (whether a tree or a suckering shrub), are important in the identification of the different species of hazel.[4]

The pollen of hazel species, which are often the cause for allergies in late winter or early spring, can be identified under magnification (600X) by their characteristic granular exines bearing three conspicuous pores.[8]

Species[edit]

Corylus has 14–18 species. The circumscription of species in eastern Asia is disputed, with WCSP and the Flora of China differing in which taxa are accepted; within this region, only those taxa accepted by both sources are listed below.[4][9][10][11] The species are grouped as follows:

Several hybrids exist, and can occur between species in different sections of the genus, e.g. Corylus × colurnoides (C. avellana × C. colurna). The oldest confirmed hazel species is Corylus johnsonii found as fossils in the Ypresian-age rocks of Ferry County, Washington.[12]

Uses[edit]

The nuts of all hazels are edible. The common hazel is the species most extensively grown for its nuts, followed in importance by the filbert. Nuts are also harvested from the other species, but apart from the filbert, none is of significant commercial importance.[5]

A number of cultivars of the common hazel and filbert are grown as ornamental plants in gardens, including forms with contorted stems (C. avellana 'Contorta', popularly known as "Harry Lauder's walking stick" from its gnarled appearance); with weeping branches (C. avellana 'Pendula'); and with purple leaves (C. maxima 'Purpurea').

Hazel is a traditional material used for making wattle, withy fencing, baskets, and the frames of coracle boats. The tree can be coppiced, and regenerating shoots allow for harvests every few years.

Hazels are used as food plants by the larvae of various species of Lepidoptera.

Mythology and folklore[edit]

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. A Druid teacher, in his bid to become omniscient, caught one of these special salmon and asked a student to cook the fish, but not to eat it. While he was cooking it, a blister formed and the pupil used his thumb to burst it, which he naturally sucked to cool, thereby absorbing the fish's wisdom. This boy was called Fionn Mac Cumhail (Fin McCool) and went on to become one of the most heroic leaders in Gaelic mythology.[13]

"The Hazel Branch" from Grimms' Fairy Tales claims that hazel branches offer the greatest protection from snakes and other things that creep on the earth.

Gallery[edit]

Giresun Hazel Turkey

References[edit]

  1. ^ Kew World Checklist of Selected Plant Families
  2. ^ Germplasm Resources Information Network: Corylus
  3. ^ Chen, Z.-D. et al. (1999). Phylogeny and evolution of the Betulaceae as inferred from DNA sequences, morphology, and paleobotany. Amer. J. Bot. 86: 1168–1181. Available online.
  4. ^ a b c d Rushforth, K. (1999). Trees of Britain and Europe. Collins ISBN 0-00-220013-9.
  5. ^ a b Huxley, A., ed. (1992). New RHS Dictionary of Gardening. Macmillan ISBN 0-333-47494-5.
  6. ^ Bean, W. J. (1976). Trees and Shrubs Hardy in the British Isles 8th ed., vol. 1. John Murray ISBN 0-7195-1790-7.
  7. ^ Erdogan, V. & Mehlenbacher, S. A. (2002). Phylogenetic analysis of hazelnut species (Corylus, Corylacae) based on morphology and phenology. Sist. Bot. Dergisi 9: 83–100.
  8. ^ Nature 10, 355-355 (03 September 1874) | doi:10.1038/010355b0 (Letters to the Editor). Retrieved 23 February 2014.
  9. ^ WCSP: Corylus
  10. ^ Flora of China: Corylus
  11. ^ Flora of North America: Corylus
  12. ^ Pigg, K.B.; Manchester S.R. & Wehr W.C. (2003). "Corylus, Carpinus, and Palaeocarpinus (Betulaceae) from the Middle Eocene Klondike Mountain and Allenby Formations of Northwestern North America". International Journal of Plant Sciences 164 (5): 807–822. doi:10.1086/376816. 
  13. ^ Floriz: Mythology and Folklore of the Hazel Tree

External links[edit]


Original courtesy of Wikipedia: http://en.wikipedia.org/wiki/Hazel — Please support Wikipedia.
This page uses Creative Commons Licensed content from Wikipedia. A portion of the proceeds from advertising on Digplanet goes to supporting Wikipedia.
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NBCSports.com

NBCSports.com
Sun, 31 Aug 2014 18:39:51 -0700

Sixth-round pick Matt Hazel, a wide receiver from Coastal Carolina, was among the 10 signees to the practice squad announced by Miami on Sunday. The 22-year-old Hazel caught six passes for 87 yards and a touchdown in preseason play for Miami.

Metro

Metro
Sat, 30 Aug 2014 05:46:38 -0700

Every girl dreams of falling in love, but for 27-year-old Hazel Dyson there was always one thing holding her back – her weight. For years Hazel had been a compulsive eater, and by the age of 21 she weighed 22st 7Ibs and was hopelessly single. The ...

The Columbian

The Columbian
Sun, 31 Aug 2014 20:56:15 -0700

A teenage boy suffered life-threatening injuries after being struck by a car this evening while walking on the sidewalk along Northwest 99th Street in Hazel Dell, according to the Clark County Sheriff's Office. The boy was struck just after a two-car ...

Mirror.co.uk

Daily Mail
Thu, 28 Aug 2014 02:47:17 -0700

A former food addict who had spent her whole life dreaming of romance shed an astonishing 12st 7lb - and fell in love for the first time. Hazel Dyson, 27, used to weigh 22st 7lb and, at her heaviest at the age of 21, had given up hope of ever having a ...
 
Delmarva Daily Times
Sat, 30 Aug 2014 17:11:15 -0700

The day was a perfect storm for legendary "Hurricane" Hazel Cropper, who wooed a crowd of nearly a thousand spectators with her 15th win in the annual crab-picking contest before crab races started at Somerset Cove Marina in Crisfield. Whitney Marshall ...
 
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Fri, 29 Aug 2014 20:33:45 -0700

HAZEL GREEN, Alabama – Muscle Shoals spoiled Hazel Green's season and home opener, downing the Trojans, who coincidentally share the same nickname, 49-12 Friday night. Muscle Shoals scored on a pair of touchdowns in the game's first six ...

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Sat, 30 Aug 2014 17:00:00 -0700

EXCLUSIVE: Hazel Blears wants to target young Muslims to prevent terrorism. FORMER communities secretary Hazel Blears says the Government needs to start working with the next generation of British Muslims if it wants to win the war against terror.
 
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MUSKEGON, MI -- For 30 years, Hazel Raddatz has braved the elements for the people on her mail route. Through the proverbial ice and snow, the sleet, the heat and storms and every human condition in between, she's delivered people's mail — and in a ...
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