Tecoma stans (L.) Juss. ex Kunth.: Exotic in nature but a significant remedial plant

The plant Tecoma stans belongs to family Bignoniaceae  Juss. Tecoma stans is a destructive plant invader that outcompetes natural flora and grassland. It can be defined as a modifier species which decreases biodiversity and abolishes natural resources. It has been planted as an ornamental garden and street plant. It has wide range of therapeutic and pharmacological applications. Almost all parts (leaves, root, flower, seed, fruit, and bark) of the plant are reported for its remedial use. Tecoma stans is an herbal remedy used for treatment of diabetes, digestive problems, control of yeast infections, as powerful diuretic, vermifuge, anti-syphilitic, stomach pains and tonic. Preliminary phytochemical screening and isolation of this plant revealed the presence of tannins, flavonoids, phenols, anthraquinones, glycosides, alkaloids, quinones and traces of saponins and amino acids. This review article supports all updated data on its phytochemical and pharmacological actions and its traditional uses.