- any of several tropical American trees of the genus Schinopsis, having very hard wood, especially S. lorentzii, the wood and bark of which are important in tanning and dyeing.
- a tree, Aspidosperma quebrachoblanco, of the dogbane family, yielding a medicinal bark.
- the wood or bark of any of these trees.
- either of two anacardiaceous South American trees, Schinopsis lorentzii or S. balansae, having a tannin-rich hard wood used in tanning and dyeing
- an apocynaceous South American tree, Aspidosperma quebrachoblanco, whose bark yields alkaloids used in medicine and tanning
- the wood or bark of any of these trees
- any of various other South American trees having hard wood
