⚠ Version 1 of The Plant List has been superseded.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 Ceratophyllum demersum in version 1.1 of The Plant List.

Ceratophyllum demersum var. echinatum (A. Gray) Wilmot-Dear is a synonym of Ceratophyllum muricatum subsp. australe (Griseb.) Les

This name is a synonym of Ceratophyllum muricatum subsp. australe (Griseb.) Les.

The record derives from Tropicos which reports it as a synonym (record 7000008) with original publication details: Kew Bull. 40(2): 266-267 266 1985.