Unknown in the wild, this is the saffron crocus grown commercially as a source of saffron, the dried styles branches used as a dye, flavouring and medicine. It is almost certainly a selected robust form of C. cartwrightianus which it closely resembles, but with larger flowers. It is sterile. Easily cultivated but shy-flowering. Deep planting in rich soil is essential to encourage flower production.
Crocus Pages: Crocus sativus