⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record kew-36930, with some changes.
This name is a synonym of Ceratophyllum platyacanthum subsp. platyacanthum .
The record derives from WCSP which reports it as a synonym (record 36930
) with original publication details: Fl. URSS 7: 719 1937.