⚠ Version 1 of The Plant List has been superseded.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 Calomnion laetum in version 1.1 of The Plant List.
This name is a synonym of Calomnion complanatum .
The record derives from Tropicos which reports it as a synonym (record 35153534
) with original publication details: Fl. Nov.-Zel. 2: 97. 87 f. 5 97 1854.