Schizophragma is, say, the sister-in-law of the well-known climbing hydrangea. Also has a self-adhesive habit. The flowers are also screens, however, with a more oval leaf on the outer leaves of the sterile peripheral flowers. Schizophragma fauriei 'Moonlight' has gray-blue marbling on the leaf.
You can see several lists of more plants on the page More plants.