⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record tro-50298149, with some changes.

Trapa natans var. quadrispinosa (Roxb.) Makino is a synonym of Trapa natans L.

This name is a synonym of Trapa natans L..

The record derives from Tropicos which reports it as a synonym (record 50298149) with original publication details: Somoku-Dzusetsu 1(2): 81 81 1907.