Dahlia and Rondeletia, are a genus of what?
Rondeletia (plant) Rondeletia is a genus of flowering plants in the family Rubiaceae. It is endemic to the neotropics. There are around 160 species.
Gardenia Gardenia is a genus of flowering plants in the coffee family, Rubiaceae, native to the tropical and subtropical regions of Africa, Asia, Madagascar and Pacific Islands.