Siberian Hazelnut (Corylus heterophylla)
Description
Corylus heterophylla, the Asian hazel, is a species of hazel native to eastern Asia in northern and central China, Korea, Japan, and southeastern Siberia.It is a deciduous shrub or small tree growing to 7 m (23 ft) tall, with stems up to 20 cm (8 in) thick grey bark. The leaves are rounded, 4-13 cm (1 1-2-5 in) long and 2.5-10 cm (1-4 in) broad, with a coarsely double-serrated to somewhat lobed margin and an often truncated apex. The flowers are wind-pollinated catkins; the male (pollen) catkins are pale yellow, 4 cm (1 1-2 in) long, while the female catkins are bright red and only 1-3 mm (1-16-1-8 in) long. The fruit is a nut produced in clusters of 2-6 together; each nut is 0.7-1.5 cm (1-4-1-2 in) diameter, partly enclosed in a 1.5-2.5 cm (1-2-1 in) long, bract-like involucre (husk). It is very similar to the closely related common hazel (C. avellana) of Europe and western Asia, differing in the leaves being somewhat more lobed.
Taxonomic tree
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Domain: Eukarya
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Kingdom: Plantae
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Phylum: Magnoliophyta
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Class: Magnoliopsida
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Order: Fagales
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Family: Betulaceae
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Genus: Corylus
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