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CCDB → Angiosperms → Crassulaceae → Hasseanthus
| Taxon name | Status | Median (n) |
| Hasseanthus elongatus Rose | Unresolved | 17 |
| Hasseanthus variegatus Rose | Unresolved | 17 |
| Hasseanthus blochmaniae Rose | Synonym of Dudleya blochmanae (Eastw.) Moran | 17 |
| Hasseanthus nesioticus Moran | Synonym of Dudleya nesiotica (Moran) Moran | 34 |