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CCDB → Angiosperms → Apocynaceae → Pachycarpus
| Taxon name | Status | Median (n) |
| Asclepias lineolata (Decne.) Schltr. | Synonym of Pachycarpus lineolatus (Decne.) Bullock | 11 |
| Pachycarpus schinzianus N. E. Brown | Synonym of Pachycarpus schinzianus (Schltr.) N. E. Br. | 11 |