The fabulous thing about today's flower is that you don't see this particular plant very often, unless one is growing in your glasshouse, and it flowers even more uncommonly. The flowers open in a most curious fashion, and the flowers are such that mostly people don't notice, and there is a reason for this. So this is a quiz for all the plant ID sharpies out there. What is this Neotropical (see, a hint!) plant? You want a bit more help? OK, it's a vine.