hop hornbeam

hop-hornbeam的词性：
n.（名词）

1. Any of several deciduous trees of the genus Ostrya, especially O. virginiana of eastern North America, having unisexual flowers grouped in catkins and fruit clusters resembling hops.
铁木：一种铁木 属落叶树木，尤指生长于北美东部的 美洲铁木 ，有单性花组成的柔荑花序和类似啤酒花藤的果实串