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CCDB → Angiosperms → Apocynaceae → Alstonia
| Taxon name | Status | Median (n) |
| Alstonia boonei D. Wild. | Accepted | 21 |
| Alstonia congensis Engl. | Accepted | 40 |
| Alstonia macrophylla Wall. ex G. Don | Accepted | 11 |
| Alstonia scholaris (L.) R. Br. | Accepted | 20 |
| Alstonia venenata R. Br. | Accepted | 11 |
| Alstonia vieillardii V. Heurck & M. Arg. | Accepted | 11 |
| Alstonia yunnanensis Diels | Accepted | 22 |
| Alstonia congensis None | Synonym of Alstonia congensis Engl. | 40 |
| Alstonia plumosa Labill. | Synonym of Alstonia costata (G. Forst.) R. Br. | 11 |
| Alstonia macrophylla Wall. | Synonym of Alstonia macrophylla Wall. ex G. Don | 11 |