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CCDB → Angiosperms → Apocynaceae → Rhytidocaulon
| Taxon name | Status | Median (n) |
| Rhytidocaulon macrolobum Lavranos | Unresolved | 11 |
| Rhytidocaulon macrolobum | Synonym of Rhytidocaulon macrolobum Lavranos | 11 |