Thank you Janet, I'm 100 % sure now that it is a Araujia species. As far as I could find, there are only 7 species in this genus. Hope to find out which one it is looking at the leaves. Will have no chance to find out how the flowers will look like, because I'm leaving Spain next week.
The Araujia sericifera is the one I think it will be, because I read it also grows in Spain. But if I want to offer the seeds, I must be sure. If I can't be sure, I will offer the seeds only as ' Araujia'
Anyway, thank you so much for your help.
