People seem to use the term calico vine and dutchman's pipevine interchangeably, though I believe them to be different plants. This is one we bought for $20 at Butterfly World, awaiting to be planted. It seems to be growing vigorously and tangles itself into everything nearby. It blooms pretty frequently, weird large blooms which I will photograph at some point.
I am currently experimenting with propagation via cuttings, if the cuttings root I will have some available for sale/trade.
