| Name | Trapa bispinosa var. incisa (Siebold & Zuccarini) Franchet & Savatier |
| Authorship | (Siebold & Zuccarini) Franchet & Savatier |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Trapa bispinosa Roxburgh |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Trapa bispinosa var. incisa (Siebold & Zuccarini) Franchet & Savatier |
| Identification made in | [no date] (2) |