Iltisia is a genus of Central American flowering plants in the family Asteraceae.Blake, Sydney Fay. 1959. Journal of the Washington Academy of Sciences 47(12): 409-410D.J.N.Hind & H.E.Robinson. 2007. Tribe Eupatorieae In: The Families and Genera of Vascular Plants vol.VIII. (Joachim W.Kadereit & Charles Jeffrey, volume editors. Klaus Kubitzky, general editor). Springer-Verlag. Berlin, Heidelberg.Tropicos, Iltisia S.F. Blake King, Robert Merrill & Robinson, Harold Ernest. 1984. Phytologia 56(4): 249–251 description in Latin, commentary and range information in English, black & white photo of type specimen of Iltisia echandiensis

Species Iltisia echandiensis R.M.King & H.Rob. – Panama, Costa Rica Iltisia repens S.F.Blake – Costa Rica

References