ironwood

Definition
(noun) handsome East Indian evergreen tree often planted as an ornamental for its fragrant white flowers that yield a perfume; source of very heavy hardwood used for railroad ties Definition
(noun) exceptionally tough or hard wood of any of a number of ironwood trees Definition
(noun) a small slow-growing deciduous tree of northern Iran having a low domed shape Definition
(noun) medium-sized hop hornbeam of eastern North America