Platykelba insigne (Ascelepiadoideae)
Simplicity itself is the appeal of a plant which goes through life as a mass of cascading stems while producing (allegedly) perfumed flowers. I have yet to see any flowers so I can't comment on that and it is always a little annoying when you read about a perfume with no description of the fragrance. Coconut? Vanilla? Honey? keep me guessing.
This is an easy care hanging basket or vertical garden plant and probably better in shade as mine has thrived under shade cloth. The hanging basket version is a bit lopsided as it was kept on a shelf for too long.