| Name | Smilax biumbellata T. Koyama |
| Authorship | T. Koyama |
| Rank | Species |
| Placed in | Smilax Linnaeus |
| Remarks | [confirmed] [imported from GBIF] |
| Citation | 1974 Brittonia 26: 133 |
| Holdings | 4 Specimens held in the Harvard University Herbaria identified as Smilax biumbellata T. Koyama |
| Identification made in | 2024 (4) |