I just bought this beauty at the Taipei Flower Market today.
The vendor didn't even know whether it's a high- or lowlander, let alone species or hybrid.
His only comment was "it might either have been poached in the wild or imported from Japan". Great. The latter might explain the price (~US$30), the former its weird condition (just a naked long vine with five leaves and two rather large pitchers. It also has quite long roots.
So....any ideas? The whole plant is about a foot tall. The extremely long tendrils are weird. If it's a hybrid, what could possibly its parentage?