Distribution patterns of Iranian species of Saxifraga with their phytogeographical significance

Numerical analysis of Saxifraga in Iran was carried out on the basis of morphological and chorological data. The cluster analysis confirmed that the genus in Iran includes two distinct groups: Group one consists of two subgroups، a) alpine Irano-Turanian endemic species (S. ramsarica، S. iranica، S. wendelboi، S. koelzii)، and b) Euxino-Hyrcanian species (S. paniculata subsp. Cartilaginea، S. kotschyi). Group two comprises S. cymbalaria، S. sibirica، S. tridactylites، and S. exarata subsp. moschata. The original distribution maps for all species are provided.