CCDB → Angiosperms → Compositae → Omalotheca
| Taxon name | Status | Median (n) |
| Omalotheca norvegica (Gunnerus) S. Bip. & F. W. Schultz | Accepted | 28 |
| Omalotheca supina (L.) DC. | Accepted | 14 |
| Omalotheca supina (L.) Cass. | Synonym of Argyrotegium poliochlorum (N. G. Walsh) J. M. Ward & Breitw. | 14 |
| Omalotheca sylvatica (L.) S. Bip. & F. W. Schultz | Synonym of Gnaphalium sylvaticum L. | 28 |
| Omalotheca supina (L.) DC | Synonym of Omalotheca supina (L.) DC. | 14 |