⚠ Version 1 of The Plant List has been superseded.
This name record (from Tropicos) is not included in version 1.1 of The Plant List. It is possible the same name is included from a different data source, to check this you can search for Sagittaria trifolia in version 1.1 of The Plant List.
This name is a synonym of Sagittaria trifolia subsp. trifolia .
The record derives from Tropicos which reports it as a synonym (record 900331
) with original publication details: J. Jap. Bot. 1(11): 36 36 1918.