I moved across the country to southwest Florida recently and I am still learning all of the local plants. I have been very interested in starting up a butterfly garden, and so I've been planting host and nectar plants for several varieties. I recently stumbled across this vine and I was wondering: is this a type of pipevine (host plant for the pipevine swallowtail)? There were no visible flowers, but the vine was extremely proliferous (growing at least ten feet tall and covering the ground where I found it). It has the signature heart-shaped leaf and tendrils seem to exhibit similar tendencies as the pipevine (wrapping together to make "braids" or "cords"). However, the vein patterns on these leaves do not seem to match pictures of most species of pipevine that I have seen.
Is this a pipevine? If so, does anyone know what species? And if it isn't a pipevine, does anyone know what it is? Whatever it is, it was growing wild near a canal down here in SW Florida, if that helps.