⚠ Version 1 of The Plant List has been superseded.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 Phyllocactus caulorhizus in version 1.1 of The Plant List.
This name is a synonym of Epiphyllum crenatum subsp. crenatum .
The record derives from Tropicos which reports it as a synonym (record 50072977
) with original publication details: Jard. Fleur. 1(Misc.): 6 6 1851.