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''Ostryopsis'' is a small genus of deciduous shrubs belonging to the birch family Betulaceae. The species have no common English name, though Hazel-hornbeam has been suggested, reflecting their similarities to the closely related Hazels and Hop-hornbeams. The genus is native to China.〔(Kew World Checklist of Selected Plant Families )〕 They are shrubs reaching 3-5 m tall, with alternate, double-toothed hazel-like leaves 2-7 cm long. The flowers are produced in spring, with separate male and female catkins. The fruit form in clusters 3-5 cm long with 6-10 seeds; each seed is a small nut 4-6 mm long, fully enclosed in a sheath-like involucre.〔(Flora of China - ''Ostryopsis'' )〕 The local people in Northeast China has found hazelnuts of Ostryopsis davidiana and Corylus mandshurica are more delicious than that of Common Hazels and Asian Hazels, and the cuisine "stir-fried huozhenzi" (火榛子) are popular. However, their hazelnuts are far more expensive than common and Asian hazelnuts. ;Species〔 #''Ostryopsis davidiana'' Decne. - widespread from Sichuan to Liaoning #''Ostryopsis intermedia'' B.Tian & J.Q.Liu - Yunnan #''Ostryopsis nobilis'' Balf.f. & W.W.Sm. - Sichuan, Yunnan == References== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Ostryopsis」の詳細全文を読む スポンサード リンク
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