Zuzu,
It is all quite nebulous and if you could please add the photo of the Adenium obesum subsp. socotranum (this Adenium is from the Island of Socotra), I would appreciate it very much.
This Adenium is not new to culitvation, just not widely available as seed is restricted. Many growers in the U.S. have plants of seed producing size.
Thank you Zuzu.