Dajian;Alismae Canaliculati Herba Sources:The drug is the whole herb of Alisma canaliculatum A.Broun et Bouché(Family Alismataceae) growing in edge of marsh dried or fresh rice-fields or ditches,distributed in Southern China. Actions and Indications:The herb is used as febrifuge,antitoxic and diuretic,for the treatment of skin herpes.difficulty in micturition,hydrops,snake-bite,externally used for infantile eczema.