| Hypsela atacamensis (Phil.) F.Phil. | Lobelia oligophylla (Wedd.) Lammers |
| Hypsela longiflora (Hook.f.) F.Phil. | Lobelia oligophylla (Wedd.) Lammers |
| Hypsela reniformis (Kunth) C.Presl | Lobelia oligophylla (Wedd.) Lammers |
| Hypsela rivalis E.Wimm. | Isotoma rivalis (E.Wimm.) Lammers |