Are both Derwentia and Elsholtzia endemic to Australia?
Derwentia (plant) Derwentia was a genus of flowering plants that is endemic to Australia.
Nivenioideae Nivenioideae subfamily is one of the two main subfamilies in the popular Iridaceae family. It contains seven genera, from South Africa, Australia and Madagascar, including the only true shrubs in the family ("Klattia", "Nivenia" and "Witsenia"), It also includes "Aristea", "Cleanthe", Patersonia and also "Geosiris", which was in its own family until being re-assessed.