aspidosperma

noun
as·​pi·​do·​sper·​ma | \ ˌas-pə-(ˌ)dō-ˈspər-mə How to pronounce aspidosperma (audio) \

Medical Definition of aspidosperma

1 capitalized : a genus of tropical American trees or rarely shrubs of the dogbane family that includes the white quebracho
2 : the dried bark of the quebracho (Aspidosperma quebracho) used as a respiratory sedative in dyspnea and in asthma

called also quebracho bark