I grew this Maurandia from a lucky dip packet of mixed seeds a number of years ago and it continues to seed itself readily. As you can see it can be a bit invasive but doesn’t grow enormous. It is probably quite short lived in cultivation – I have found it so anyway.
The packet came from the UK company Chiltern Seeds who have an unbelievably extensive range of seeds from all over the world. They occupy the position that Thompson and Morgan used to have in the Sixties and Seventies and are well worth a look.