| Roella ciliata dregeana (A.DC.) Sond. | Roella dregeana A.DC. |
| Roella cinerea (L.f.) A.DC. | Wahlenbergia cinerea (L.f.) Lammers |
| Roella dregeana nitida (Schltr.) Adamson | Roella dregeana A.DC. |
| Roella leptosepala Sond. | Roella dregeana A.DC. |
| Roella nitida Schltr. | Roella dregeana A.DC. |
| Roella psammophila Schltr. | Roella dregeana A.DC. |
| Roella reticulata dunantii (A.DC.) Sond. | Roella dunantii A.DC. |
| Roella rhodantha Adamson | Roella incurva Banks ex A.DC. |
| Roella tenuifolia (L.f.) Thunb. | Merciera tenuifolia (L.f.) A.DC. |