| Name | Begonia handelii Irmscher |
| Authorship | Irmscher |
| Rank | Species |
| Placed in | Begonia Linnaeus |
| Contains | Begonia handelii var. prostrata (Irmscher) Tebbitt |
| Citation | 1921 Anz. Akad. Wiss. Wien, Math.-Naturwiss. Kl. 58: 24 |
| Holdings | 3 Specimens held in the Harvard University Herbaria identified as Begonia handelii Irmscher |
| Identification made in | 2016 (3) |