The air potato vine (Dioscorea bulbifera) is a vigorous plant that can be hard to shift from the garden once it takes over. While it may become a menace, the veined, heart shaped leaves are very decorative backlit against a blue sky. This plant was tumbling over a bottle tree in Jackson, Mississippi.
Susan Rushton 
We’re having a bad case of the dismals here in Indiana, so these bright greens are a joy to see. I love the contrast of glass and leaf. Thanks!
I think this appealed to me because I’m used to living in a place where skies just aren’t this blue, the sun rarely so powerful in November, and heart-shaped vine leaves are harder to come by. I took a picture of a little anole silhouetted against the sun on one of the leaves too.
Lovely how they are light from above and photographed from below.
Thanks Laurie. I liked the way the crinkles in the leaves are highlighted.
I love the look of sunlight through leaves. I’m intrigued: what is the purpose of the bottle in the picture?
The vine is climbing up a bottle tree made in the traditional way by attaching bottles to a dead tree snag.