Galanthus (convolute). He merged "Nivalis" and "Plicati" into series "Galanthus", and divided "Latifolii" into two subseries, "Glaucaefolii" and "Viridifolii" . Early molecular phylogenetic studies confirmed the genus was monophyletic and suggested four clades, which were labelled as series, and showed that Davis' subseries were not monophyletic. An expanded study in 2013 demonstrated seven major clades corresponding to biogeographical distribution. This study used nuclear encoded nrITS (Nuclear ribosomal internal transcribed spacer), and plastid encoded "matK" (Maturase K), "trnL-F", "ndhF", and "psbK–psbI", and examined all species recognised at the time, and also two naturally occurring putative hybrids. The morphological characteristic of vernation that
Shenzhen International Garden and Flower Expo Park 23, 2004, which was awarded the title of "National Key Park" by Ministry of Housing and Urban-Rural Development on September 12, 2008. Shenzhen International Garden and Flower Expo Park was a part of the Huangniulong green isolation belt and the venue for the Fifth China International Garden and Flower Exposition co-hosted by Ministry of Housing and Urban-Rural Development (formerly Ministry of Development) and Shenzhen Municipal People’s Government. Its theme is "Nature, Home, Bright Future". The Park is divided into three scenic areas, including the West Area, the North Area and the West Area. Shenzhen International Garden and Flower Expo Park