Having seen a nice primrose at Wisley recently (Primula vulgaris 'Gigha'), apparently a white form of the common primrose found in the Hebrides,
I tried to order one - and this is what arrived:
It has very shiny leaves, and extremely large white flowers, the petals deeply notched, slightly fluted, and quite reflexed.
I like it alot.
Isn't this the sort of thing found in Iran etc ??