| Hymenoxys acaulis | Tetraneuris acaulis (Pursh) Greene trib. Helenieae |
| Hymenoxys argentea | Tetraneuris argentea Greene trib. Helenieae |
| Hymenoxys herbacea | Tetraneuris herbacea Greene trib. Helenieae |
| Hymenoxys ivesiana | Tetraneuris ivesiana Greene trib. Helenieae |
| Hymenoxys lapidicola | Tetraneuris torreyana (Nutt.) Greene trib. Helenieae |
| Hymenoxys liguliflora | Hymenoxys richardsonii (Hook.) Cockerell trib. Helenieae |
| Hymenoxys olivacea | Hymenoxys floribunda Cockerell trib. Helenieae |
| Hymenoxys scaposa | Tetraneuris scaposa (DC.) Greene trib. Helenieae |
| Hymenoxys torreyana | Tetraneuris torreyana (Nutt.) Greene trib. Helenieae |