Pelargonium insularis is a critically endangered species, native to the Island of Samha of the Socotra Archelago, Yemen which lies between the larger Island Socotra & Somalia.
It is a new species which was found in 1999 on a limestone slope, only a single plant was discovered at the time after searching the area.
This plant has been gradually decreasing in recent years mainly because of the sheep and goats which by chance graze in that area.
P. insularis is similar to P. alchemilloides but the flowers are pink & not white, it also has a more woody growth and likes to grow in rocky places on cliff faces and mountainsides.
The image shows a basic example of P. insularis and may not be exact likeness.