⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record tro-50271470, with some changes.

Trapa bispinosa var. incisa (Siebold & Zucc.) Franch. & Sav. is a synonym of Trapa incisa Siebold & Zucc.

This name is a synonym of Trapa incisa Siebold & Zucc..

The record derives from Tropicos which reports it as a synonym (record 50271470) with original publication details: Enum. Pl. Jap. 1: 171 171 1875.