It is an Abuliton and there are several varieties of them. I grow four of them in my unheated greenhouse( SE England).Threeof them survived the bad winters(-15C) but one did not.I think they are OK under cover but some varieties are deciduous. They are easy to grow and produce dainty exortic looking flowers. This year I tried to grow one along the wall(north facing) of the house. So far it looks very healthy but has not flowered yet. It may be too late for it to do so now but I hope it survives the winter!
They are very easy to strike as cuttings too so do have a go.