Onoseris is a genus of Mesoamerican and South American flowering plants in the gerbera tribe within the sunflower family. Species 1. \n* Onoseris acerifolia Kunth 2. \n* Onoseris alata Rusby 3. \n* Onoseris albicans (D.Don) Ferreyra 4. \n* Onoseris annua Less. 5. \n* Onoseris brasiliensis Cabrera 6. \n* Onoseris castelnaeana Wedd. 7. \n* Onoseris cumingii Hook. & Arn. 8. \n* Onoseris donnell-smithii (J.M.Coult.) Ferreyra 9. \n* Onoseris drakeana André 10. \n* Onoseris fraterna S.F.Blake 11. \n* Onoseris gnaphalioides Muschl. 12. \n* Onoseris hastata Wedd. 13. \n* Onoseris hyssopifolia Kunth 14. \n* Onoseris odorata (D.Don) Hook. & Arn. 15. \n* Onoseris onoseroides (Kunth) B.L.Rob. 16. \n* Onoseris purpurata Willd. 17. \n* Onoseris purpurea (L.f.) S.F.Blake 18. \n* Onoseri