The Plant List — A working list for all plant species

⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record kew-234747, and has not been changed.

H Costus quartus Roem. & Schult. is a synonym of Costus spicatus (Jacq.) Sw.

This name is a synonym of Costus spicatus (Jacq.) Sw..

The record derives from WCSP which reports it as a synonym and as an invalid name (record 234747) with original publication details: Syst. Veg. 1: 26 1817.

Full publication details for this name can be found in IPNI: