Persian violet (though it’s not a violet) is native to the eastern Mediterranean region, where it grows as a plant of shady forests. It has some stellar qualities which make it well-adored as a cultivated ornamental plant: early-blooming, relatively hardy, a delicate but cheery appearance and low maintenance. No wonder, perhaps, that it is both an RHS Award of Garden Merit recipient and a Great Plant Pick.
The Cyclamen Society has a page dedicated to Cyclamen coum that goes into detail about its subspecies and forms; photographs of a few of these variations can be seen via the Pacific Bulb Society’s wikipage on Cyclamen.
A few more sources of photographs, if you’re interested: 1) I posted a close-up of the flowers to the forums a couple years ago; and 2) the North American Rock Garden Society featured Cyclamen coum as its Plant of the Month in March 1999.