Click on the text link under each photo to see a larger picture.

Two intertwined vines - showing opposite - simple leaves
Photo credit: Niels Proctor, University of Florida

Flower and leaves
Photo credit: Niels Proctor, University of Florida

Botanical illustration from 1887
Photo credit: Biodiversity Heritage Library (Flickr ID BioDivLibrary). Used under a Creative Commons license. 

Close-up of flowers and leaves
Photo credit: Flickr user douneika. Used under a Creative Commons license.