Thunbergia has been called “the most gorgeous vine in the world” by some. This blooming, twisted vine looks like Morning Glory from a distance, and the flowers are similar up close. Its common name of clock vine is derived from the fact that it is wrapped clockwise around support.
The Blue Trumpet Vine, Sky Flower, or Sky Vine are other common names. This evergreen, vigorous vine is native to Myanmar, Bangladesh, Nepal, India, and China. Thunbergia grandiflora is a vine in the Acanthaceae family. There are 100 to 150 species[1] of flowering plants in the Thunbergia genus.