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CCDB → Angiosperms → Rubiaceae → Nauclea
| Taxon name | Status | Median (n) |
| Nauclea orientalis (L.) L. | Accepted | 44 |
| Nauclea trillesii (Pierre) Merr. | Synonym of Nauclea diderrichii (D. Wild.) Merr. | 22 |
| Sarcocephalus diderrichii D. Wild. | Synonym of Nauclea diderrichii (D. Wild.) Merr. | 22 |
| Nauclea pobeguinii (Pob) Merr. | Synonym of Nauclea pobeguinii (Pobég.) Merr. ex E. M. A. Petit | 22 |
| Sarcocephalus xanthoxylon A. Chev. | Synonym of Nauclea xanthoxylon (A. Chev.) Aubrév. | 22 |
| Sarcocephalus xanthoxylon A. Chev. | Synonym of Nauclea xanthoxylon (A. Chev.) Aubrév. | 22 |