This work was completed thanks to the continued support by Université Gamal Abdel Nasser de Conakry for Herbier National de Guinée. Work towards the checklist was partly funded through a grant from the Global Biodiversity Information Facility, Biodiversity Information for Development programme (reference number AF2015-0042-NAC) ‘Towards a Red Data Book for Guinea’ in collaboration with the Darwin Initiative-funded Tropical Important Plant Areas project (Darwin Project 23-002) and completed with support from Fondation Franklinia (2020-24).