| Name | Polyalthia watui K. M. Wong |
| Authorship | K. M. Wong |
| Rank | Species |
| Placed in | Polyalthia Blume |
| Remarks | [confirmed] [imported from GBIF] |
| Citation | 2016 Gard. Bull. Singapore 68: 72 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Polyalthia watui K. M. Wong |
| Identification made in | [no date] (1) |