From the outside this could be easily confused with Crocus kotschyanus, but one look at the inside and you can clearly see the difference. 

It hails from the Lake Van region of Turkey and said to grow in gritty, acid soils among oaks and scrub. Lake Van is the largest lake in Turkey and home to lore and legend of cryptid Dragon like sea monsters and sunken castles from the middle ages. The Armenian highlands of the eastern Anatolian region, offer scrubby Quercus infectoria woodlands interspersed with a rich floral diversity with high rate of endemic species with lots of thistles, native Dianthus and the stunning Iris iberica.

It's an easy grower, and it seems to do every bit as good as the often mistaken C. kotschyanus in the garden. I find it often growing out of the old bulb soil piles I tend to spread around the garden at harvest time.