quebracho
/keɪˈbrɑːtʃəʊ/noun
(pl. -os)
1- a South American tree whose timber and bark are a rich source of tannin白坚木, 白雀树。
1.1
- Genera Aspidosperma (family Apocynaceae) and Schinopsis (family Anacardiaceae).盾籽木属（夹竹桃科）和类乳香属（漆树科）。
词源
late 19th cent.: from Spanish， from quebrar 'to break'+hacha 'axe'.