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
San Francisco Flower & Garden Show Center in 2017. San Francisco Flower & Garden Show The San Francisco Flower & Garden Show is an annual public show serving the northern California, USA region. Attendance ranges from 25,000 - 30,000. The show is five days long, running Wednesday through Sunday, and is typically held in March. The show consists of three main components: approximately 15 display gardens ranging from 500 to 1,500 sq. ft. in size, educational displays, vendors promoting and selling garden-related products, and free seminars. Seminar speakers include garden and design experts from the U.S. West Coast. Two large flower shows that preceded the San