| Name | Trapa bispinosa var. iinumai Nakano |
| Authorship | Nakano |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Trapa bispinosa Roxburgh |
| Holdings | 9 Specimens held in the Harvard University Herbaria identified as Trapa bispinosa var. iinumai Nakano |
| Identification made in | [no date] (9) |