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CCDB → Angiosperms → Arecaceae → Roystonea
| Taxon name | Status | Median (n) |
| Roystonea oleracea (Jacq.) O. F. Cook | Accepted | 18 |
| Roystonea regia (Kunth) O. F. Cook | Accepted | 18 |
| Oreodoxa oleracea (Jacq.) Mart. | Synonym of Roystonea oleracea (Jacq.) O. F. Cook | 18 |
| Oreodoxa regia Kunth | Synonym of Roystonea regia (Kunth) O. F. Cook | 18 |