Either of two South American trees, Aspidosperma quebracho - blanco whose bark is used in medicine, or Schinopsis lorentzii whose wood is one of the richest sources of tannin.

• 破斧树两种南美乔木中的任意一种，白坚木，其树皮用于制药或红破斧木，其木材是制造丹宁的最丰富的原料之一