- any of various trees yielding a hard, heavy wood, as the American hornbeam, Carpinus caroliniana, or Lyonothamnus floribundus, found on the islands off the coast of S California.
- the wood of any of these trees.
- any of various betulaceous trees, such as hornbeam, that have very hard wood
- a Californian rosaceous tree, Lyonothamnus floribundus, with very hard wood
- any of various other trees with hard wood, such as the mopani
- the wood of any of these trees
