Linn.Family: Apocynaceae.
Habitat: Native to Central America and Brazil. Grown in Indian gardens.
English: Golden Trumpet.Folk: Zahari Sontakkaa. (Maharashtra).Action: Leaves—cathartic (in moderate doses; emetic in large doses). Bark—hydragogue, in ascites.
The purgative property of the aqueous extract of leaves was confirmed pharmacologically in rats. The extract also showed antifungal activity against ringworm causing fungi. Flower extract inhibits fungal growth.EtOH extract of roots showed in- vivo activity against P-388 leukaemia in mouse and in vitro against human carcinoma cells of nasopharynx (KB). The root contains antileukaemic iri- doid lactone, allamandin and two other iridoids, allamandicin and allamdin.The stems and leaves contain beta- amyrin, beta-sitosterol and ursolic acid. Petals gave flavonoids—kaem- pferol and quercetin.