榛木一种榛属灌木或小乔木，尤指欧洲的黄灰榛或美洲的美洲榛，产有包裹在叶状的外壳中的可食用的果实

• Any of various shrubs or small trees of the genus Corylus,especially the European species C. avellana or the American species C. americana,bearing edible nuts enclosed in a leafy husk.