Cycas is the sole genus included in the family Cycadaceae of the order Cycadales. Members of the genus, which are subdivided into about ten different species, differ from other cycads in respect to their dark green, shiny palm-like leaves that feature a midrib but no lateral veins. The large leaves of one of the best-known species, C. revoluta, are sometimes utilized in funerals and other ceremonies as palms, though they are much more closely related to ginkgoes and conifers than members of the family Palmae. C. revoluta is native to Japan, but is regularly grown in a variety of tropical and subtropical areas as an ornamental. The plants, which are also commonly called sago or funeral palms, can be used to produce a flour-like material by properly processing the pith contained in their stems. Without processing, the pith and other parts of the plant are toxic.