Morning glory (Ipomea purpurea) . This is a species in the genus Ipomoea (part of the Convolvulaceae...bindweed family) , native to Mexico and Central America. It is widespread near coasts in the Mediterranean region, often clambering over bushes, old builidngs etc as a highly colourful weed. Humans use Ipomoea spp. for their content of medical and psychoactive compounds, mainly alkaloids. Ponza, Lazio, Italy, September 2021