| Name | Begonia congesta Ridley | 
| Authorship | Ridley | 
| Rank | Species | 
| Placed in | Begonia Linnaeus | 
| Citation | 1906 J. Straits Branch Roy. Asiat. Soc. 46: 253 | 
| Holdings | 4 Specimens held in the Harvard University Herbaria identified as Begonia congesta Ridley | 
| Identification made in | [no date] (4) |