⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record tro-50150657, with some changes.

Trapa natans var. japonica Nakai 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 50150657) with original publication details: J. Jap. Bot. 18(8): 429, 431 429 1942.