Iris domestica (Blackberry lily, Leopard flower, Leopard lily; syn. Belamcanda chinensis, Belamcanda punctata Moench, Gemmingia chinensis (L.) Kuntze, Iris chinensis Curtis, Ixia chinensis L., Morea chinensis, Pardanthus chinensis (L.) Ker Gawl.) is an ornamental plant in the Iridaceae family. The leopard lily is a flowering perennial of Chinese origin and is locally used in Chinese villages for its medicinal values. Currently, studies are underway to investigate its apparent potential against prostate cancer. The dried rhizome has long been used in East Asia to treat throat troubles, asthma, swollen liver and spleen, gonorrhea, malaria, and arrow poisoning. Belamcandachinensis (Iridaceae) belongs to the family of iridaceae and its rhizoma has been widely used for the treatment of throat ailment. Here we report a new pharmacological activity of B. chinensis leaf extract (BCL).