ABSTRACT: Saffron (Crocus sativus) is a sterile triploid (2n 1⁄4 3x 1⁄4 24) cultivated species, of un- known origin from other diploid and polyploid species in the genus Crocus (Iridaceae). Species in the genus have high morphological diversity, with no clear phylogenetic patterns below the level of section Crocus series Crocus. Using DNA markers, this study aimed to examine the diversity and relationships within and between species of Crocus series Crocus.