Dreyer, LauretteOberlander, Kenneth Carl2025-05-262025-07Dreyer, L.L. & Oberlander, K.C. 2025, 'Exceptional and enigmatic southern African Oxalis – a review South African Journal of Botany', vol. 182, pp. 1-14, doi : 10.1016/j.sajb.2025.04.048.0254-6299 (print)1727-9321 (online)10.1016/j.sajb.2025.04.048http://hdl.handle.net/2263/102502Oxalis is a diverse, morphologically variable, and biologically unusual member of South Africa’s flora, but has seen surprisingly little research focus despite its relevance to multiple ecological and evolutionary questions. In this review we sketch what makes this lineage exceptional in terms of what is known, and enigmatic in terms of what still needs attention, through the lens of three decades of research focus on our part. Our hope is to focus attention on, and stimulate research interest in, this extraordinary genus.en© 2025 SAAB. Published by Elsevier B.V. All rights are reserved, including those for text and data mining, AI training, and similar technologies. Notice : this is the author’s version of a work that was accepted for publication in South African Journal of Botany. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. A definitive version was subsequently published in South African Journal of Botany, vol. 182, pp. 1-14, doi : 10.1016/j.sajb.2025.04.048.AnatomyGeophyteGerminationInter-organismal interactionsPalynologyPhylogenyPolyploidySouthern African OxalisPostprint Article