| Ptilepida acaulis (Pursh) Britton | Tetraneuris acaulis (Pursh) Greene trib. Helenieae |
| Ptilepida grandilfora (Torr. & A.Gray) Rose | Hymenoxys grandiflora (Torr. & A.Gray) K.F.Parker trib. Helenieae |
| Ptilepida scaposa (DC.) Britton | Tetraneuris scaposa (DC.) Greene trib. Helenieae |