| Name | Smilax sinclairii T. Koyama |
| Authorship | T. Koyama |
| Rank | Species |
| Placed in | Smilax Linnaeus |
| Citation | 1960 J. Jap. Bot. 45: 149. |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Smilax sinclairii T. Koyama |
| Identification made in | [no date] (1) |