Family Convolvulaceae, composed of about 1,400 species of flowering plants in 50 genera, widely cultivated for their colourful, funnel-shaped flowers.
Most are twining and erect herbaceous plants; a few are woody vines, trees, or shrubs. The family is widespread in both tropical and temperate areas. Most popular morning glories are of the genus Ipomoea , as is the sweet potato . Several species of bindweed s are agricultural pests. The seeds of two species, Rivea corymbosa and I. violacea , contain hallucinogenic compounds of historical interest.