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Corylus avellana, the common hazel, is a species of flowering plant in the birch family Betulaceae. 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.
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 "Corkscrew hazel" or "Harry Lauder's walking stick" from its gnarled appearance); with weeping branches (C. avellana 'Pendula'); and with purple leaves (C. maxima ...
This will allow the seed to germinate in 1 to 6 months if kept at 20 °C. Once the seed is large enough to handle, pick the seedlings out into individual pots and grow them on in a cold frame or sheltered place outdoors for their first winter. You can plant the seed into their permanent positions in late spring or early summer. [11]
The filbert is similar to the related common hazel, C. avellana, differing in having the nut more fully enclosed by the tubular involucre.This feature is shared by the beaked hazel C. cornuta of North America, and the Asian beaked hazel C. sieboldiana of eastern Asia.
The common hazel (Corylus avellana) and the filbert (Corylus maxima) are important orchard plants, grown for their edible nuts. The other genera include a number of popular ornamental trees , widely planted in parks and large gardens; several of the birches are particularly valued for their smooth, brightly coloured bark .
Corylus, commonly known as the hazels, is often considered a sister group to the Ostryopsis-Carpinus-Ostrya subclade.Corylus is placed as the sister group to the remaining Coryloideae because it shares plesiomorphic character states with the Betuloideae such as bisexual inflorescences, staminate flowers with a perianth, a haploid chromosome number of 14, and nonoperculate pollen apertures with ...
Corylus: hazels; Corylus americana: American hazel; American hazelnut Betulaceae (birch family) Corylus avellana: common hazel Betulaceae (birch family) Corylus colurna: Turkish hazel Betulaceae (birch family) Corylus cornuta: beaked hazel; beaked hazelnut Betulaceae (birch family) Corylus maxima: filbert Betulaceae (birch family) Ostrya: hop ...
Corylus papyracea Hickel Corylus chinensis, common names Chinese filbert [2] and Chinese hazel, is a deciduous [3] tree native to western China. This tree is ...
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