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
Luzula nivalis ellipsoidal, smooth, brown and 1.0–1.2 × 0.6–0.7 mm in size. Basel appendages are fibrillate and up to 0.2 mm long. The fruit of "L. nivalis" is sessile and dry with a persistent and glabrous calyx. The rosette-like whorl of short leaves in "Luzula nivalis" allows it to easily be distinguished from "Luzula confusa". "Luzula nivalis" has been described as having an 'arctic-alpine circumpolar' distribution, as "L. nivalis" is an alpine plant which grows in the arctic regions of the northern hemisphere. Places which "L. nivalis" grows in include Norway, Sweden, Finland and Svalbard. "Luzula nivalis" has been found in a