Thunbergia mysorensis is a species of the genus, Thunbergia that comprises of about 200 species of annual or perennial vines that are indigenous to tropical Africa, Asia and Madagascar. It is considered to be the prettiest flowering vine in the world as acclaimed in the book, Vines of the World. This spectacular vine grows very vigorously, often reaches 6-10 meters long in humid and warm tropical regions, but probably slow to moderate growth in cooler climes.
Included in the "Flowers 58 (1397)" Gallery (www.flickr.com/photos/danvartanian/galleries/721576297398...)
Best seen on black: press L to view.