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CCDB → Angiosperms → Rubiaceae → Pentodon
| Taxon name | Status | Median (n) |
| Hedyotis halei Torr. & A. Gray | Synonym of Pentodon pentandrus (Schumach. & Thonn.) Vatke | 9 |
| Pentodon pentandrus var. pentandrus | Synonym of Pentodon pentandrus (Schumach. & Thonn.) Vatke | 9 |