Galanthus earlier authors had mainly relied on was shown to be highly homoplasious. A number of species, such as "G. nivalis" and "G. elwesii" demonstrated intraspecific biogeographical clades, indicating problems with speciation and there may be a need for recircumscription. These clades were assigned names, partly according to Davis' previous groupings. In this model clade Platyphyllus is sister to the rest of the genus. By contrast another study performed at the same time, using both nuclear and chloroplast DNA but limited to the 14 species found in Turkey, largely confirmed Davis' series and subseries, and with biogeographical correlation. Series "Galanthus" in
Flower Garden of Isfahan kinds of plants such as seasonal and permanent flowers and ornamental shrubs. In the center of the garden, a carpet-like design has been made by different flowers. The 5000 m² paths are covered by granite stones with different shapes. Rose garden for growing the various kinds of roses cultivated in Iran. The Greenhouse has been built over 700 m² on the northeastern side of the garden due to the shortage of flowers in winter. The Herb garden covers 1170 m² and has 132 species of herbs from different parts of Iran. Flower Garden of Isfahan The Flower garden of Isfahan