English: Aspidosperma quebracho blanco; Bitterrinde; Quebracho blanco; Quebracho, weißer; White quebracho.
Names: Quebracho aspidosperma; White Quebracho; Quebracho.
Content: alkaloid aspidospermine, quebrachine, small, very brilliant, white crystals, sparingly soluble in water, readily soluble in alcohol and ether.