⚠ Version 1 of The Plant List has been superseded.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 Pachycarpus rigidus in version 1.1 of The Plant List.
This name is a synonym of Gomphocarpus rigidus var. tridens .
The record derives from Tropicos which reports it as a synonym (record 2606363
) with original publication details: Comm. Pl. Afr. Austr. 211 211 1838.