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CCDB → Angiosperms → Compositae → Hilliardiella
| Taxon name | Status | Median (n) |
| Hilliardiella oligocephala (DC.) H. Rob. | Accepted | 10 |
| Hilliardiella smithiana (Less.) H. Rob. | Accepted | 10 |
| Vernonia natalensis Oliv. & Hiern | Synonym of Hilliardiella aristata (DC.) H. Rob. | 9 |
| Vernonia natalensis S. Bip. ex Walp. | Synonym of Hilliardiella aristata (DC.) H. Rob. | 9 |
| Vernonia oligocephala (DC.) S. Bip. ex Walp. | Synonym of Hilliardiella oligocephala (DC.) H. Rob. | 10 |
| Vernonia capensis (Houtt.) Druce | Synonym of Hilliardiella pinifolia (Less.) H. Rob. | 9 |
| Vernonia smithiana Less. | Synonym of Hilliardiella smithiana (Less.) H. Rob. | 10 |