⚠ Version 1 of The Plant List has been superseded.

This name record (from WCSP (in review)) 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 Arrhostoxylum costatum in version 1.1 of The Plant List.

Arrhostoxylum costatum var. latifolium Nees is a synonym of Ruellia costata Hiern

This name is a synonym of Ruellia costata Hiern.

The record derives from WCSP (in review) which reports it as a synonym with original publication details: Fl. Bras. 9: 61 1847.