CCDB → Angiosperms → Rubiaceae → Nenax
| Taxon name | Status | Median (n) |
| Nenax acerosa subsp. macrocarpa (Eckl. & Zeyh.) Puff | Accepted | 22 |
| Nenax arenicola Puff | Accepted | 22 |
| Nenax cinerea (Thunb.) Puff | Accepted | 11 |
| Nenax coronata Puff | Accepted | 11 |
| Nenax divaricata Salter | Accepted | 11 |
| Nenax microphylla (Sond.) Salter | Accepted | 11 |
| Nenax namaquensis Puff | Accepted | 11 |
| Nenax acerosa subsp. acerosa | Synonym of Nenax acerosa Gaertn. | 22 |
| Nenax hirta subsp. hirta | Synonym of Nenax hirta (Cruse) Salter | 11 |