| Name | Begonia niahensis K. G. Pearce |
| Authorship | K. G. Pearce |
| Rank | Species |
| Placed in | Begonia Linnaeus |
| Citation | 2003 Gard. Bull. Singapore 55(1): 77 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Begonia niahensis K. G. Pearce |
| Identification made in | [no date] (2) |