Costus quartus Roem. & Schult.
First published in Syst. Veg. ed. 15[bis]. 1: 26 (1817), not validly publ.
This name is a synonym of Costus spicatus
POWO follows these authorities in synonymising this name:
- Govaerts, R. (1999). World Checklist of Seed Plants 3(1, 2a & 2b): 1-1532. MIM, Deurne. [Cited as Costus spicatus.]
Other Kew resources that provide information on this taxon:
Kew Names and Taxonomic Backbone
- The International Plant Names Index and World Checklist of Vascular Plants 2023. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
- © Copyright 2022 International Plant Names Index and World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0