Allamanda cathartica (Golden Trumpet) is an ornamental plant of Allamanda genus in the Apocynaceae family, which is native from Brazil. This plant is cited in Flora Brasiliensis by Carl Friedrich Philipp von Martius.
It is mainly used to treat malaria.
Its large flowers are very fragrant. This South American plant is thought to blossom best in full sunshine, and well drained soil.