The flora of Samoa (the archipelago) comprises about 550 native species of flowering plants (Whistler, pers. research). These species fall into 95 plant families and about 300 genera. Although Samoa has the second largest native flora in tropical Polynesia (behind Hawai‘i), its flora is only about one third as large as that of Fiji located about 1100 km (685 mi) to the west. The largest family of flowering plants in Samoa is the orchid family Orchidaceae, with approximately 100 species. Approximately 30% of the flowering plants of Samoa are endemic to the archipelago. Only two genera, Sarcopygme (Rubiaceae) and Solfia (Arecaceae), are endemic to the archipelago.