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Australian Systematic Botany Australian Systematic Botany Society
Taxonomy, biogeography and evolution of plants
RESEARCH ARTICLE (Open Access)

Reinstatement of Sabdariffa and new combinations to support a monophyletic concept of Hibiscus (Malvaceae: Hibisceae)

Russell L. Barrett https://orcid.org/0000-0003-0360-8321 A B * , Vania Nobuko Yoshikawa C , Todd G. B. McLay D E F , Marília Cristina Duarte G , Geoffrey Mwachala H and Margaret M. Hanes I
+ Author Affiliations
- Author Affiliations

A National Herbarium of New South Wales, Botanic Gardens of Sydney, Locked Bag 6002, Mount Annan, NSW 2567, Australia.

B Evolution and Ecology Research Centre, School of Biological, Earth and Environmental Sciences, University of New South Wales—Sydney, Kensington, NSW 2052, Australia.

C Institute of Biosciences, Department of Botany, University of São Paulo, Rua do Matão 277, Prédio Sobre-as-Ondas, 05508-090, São Paulo, Brazil. Email: vnyoshikawa@usp.br

D Centre for Australian National Biodiversity Research, CSIRO, Clunies Ross Street, Canberra, ACT 2601, Australia. Email: todd.mclay@csiro.au

E Royal Botanic Gardens Victoria, Birdwood Avenue, Melbourne, Vic. 3004, Australia.

F School of Biosciences, The University of Melbourne, Parkville, Vic. 3010, Australia.

G Herbarium Mogiense, Laboratório de Sistemática Vegetal, Universidade de Mogi das Cruzes, Avenida Dr Cândido Xavier de Almeida e Souza, 200, Mogi das Cruzes, SP CEP: 08780-911, Brazil. Email: mariliacd@umc.br

H East African Herbarium, Botany Department, National Museums of Kenya, PO Box 45166, Nairobi 00100, Kenya. Email: gmwachala@gmail.com

I Department of Biology, Eastern Michigan University, Ypsilanti, MI 48197, USA. Email: mkoopma2@emich.edu


Handling Editor: Joeri Strijk

Australian Systematic Botany 38, SB24013 https://doi.org/10.1071/SB24013
Submitted: 17 May 2024  Accepted: 28 March 2025  Published: 21 May 2025

© 2025 The Author(s) (or their employer(s)). Published by CSIRO Publishing. This is an open access article distributed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND)

Abstract

Recent phylogenetic studies have demonstrated that Hibiscus L. as traditionally defined is grossly polyphyletic. In a major step towards making Hibiscus monophyletic, the genus Sabdariffa (DC.) Kostel. is here reinstated for Hibiscus section Furcaria DC. In total, 123 new combinations are provided (for 117 species and 6 subspecies). Numerous lectotypes are designated. Sabdariffa has a pantropical distribution, with high species diversity in tropical Africa, tropical America and northern Australia. False roselle (Sabdariffa acetosella (Welw. ex Hiern) M.M.Hanes & R.L.Barrett), kenaf (Sabdariffa cannabina (L.) M.M.Hanes & R.L.Barrett) and roselle (Sabdariffa gossypiifolia (Mill.) M.M.Hanes & R.L.Barrett) are all of global economic significance. Ma‘o hau hele (Sabdariffa brackenridgei (A.Gray) M.M.Hanes & R.L.Barrett) is the official state flower of Hawai’i. Full synonymy and type details are included, along with distributions and references to existing descriptions for all species. A series of regional keys to species is presented here with current names in Sabdariffa.

Keywords: classification, false roselle, fibre plants, Hibisceae, Hibiscus section Furcaria, kenaf, Mallows, Malvaceae, roselle, systematics, taxonomy.

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