ironbark

noun

In Australia, certain trees having a solid, close bark, especially species of Eucalyptus. See ironbark-tree.—

The Australian Eucalyptus Sideroxylon, used largely by carpenters and shipbuilders; — called also ironwood. Also applied to other Australian eucalyptuses with a hard, solid bark.

noun

Any of several unrelated trees that have dark, deeply furrowed bark