List of Crocus species
This list of "Crocus" species shows the accepted species names within the genus "Crocus", which are predominantly spring perennial plants in the Iridaceae (iris) family. The list of species is arranged by section. Estimates of the number of species in "Crocus" have varied widely, from anywhere between 80 to 160, even in the modern era. Carl Linnaeus originally included two species in 1753, but new species continue to be identified. The deep phylogenetic infrageneric relationships remain unresolved. When subjected to molecular phylogenetic analysis, the sections are well supported but only some of the series. Ongoing, more  detailed examination of the various series is leading to a recircumscription, with increasing monophyly. Species segregate to form a basal polytomy of four subclades (A–D). The first clade (A) corresponding to section "Crocus", but including "C. sieberi" and several closely related species (originally included in section "Nudiscapus" series "Reticulati"). The remaining three clades (B-D) include all the remaining species of section "Nudiscapus". Of these, B and C are small, corresponding to series "Orientales" and "Carpetani" respectively, with all remaining series in the large D clade. Sections, series and species. Classification of Brian Mathew (1982), amended 2009 and including  more recent additions. Series marked with * indicate those known to be monophyletic. Section "Crocus" (Clade A). Species with a basal prophyll. Type species "C. sativus" Section "Nudiscapus". Species without a basal prophyll. Type species "C. reticulatus"