⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record kew-36920, and has not been changed.
This name is a synonym of Ceratophyllum platyacanthum subsp. oryzetorum .
The record derives from WCSP which reports it as a synonym (record 36920
) with original publication details: J. Jap. Bot. 1(6): 21 1917.