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CCDB → Angiosperms → Apocynaceae → Apocynum
| Taxon name | Status | Median (n) |
| Apocynum androsaemifolium L. | Accepted | 8 |
| Apocynum cannabinum L. | Accepted | 11 |
| Apocynum venetum L. | Accepted | 11 |
| Apocynum androsaemifolium var. androsaemifolium | Synonym of Apocynum androsaemifolium L. | 8 |
| Apocynum cannabinum subsp. cordigerum (Greene) Á. Löve & D. Löve | Synonym of Apocynum cannabinum L. | 11 |
| Poacynum hendersonii (Hook.) Woodson | Synonym of Apocynum pictum Schrenk | 10 |
| Poacynum pictum (Schrenk) Baill. | Synonym of Apocynum pictum Schrenk | 10 |
| Trachomitum venetum (L.) Woodson | Synonym of Apocynum venetum L. | 11 |