Arthroclianthus is a genus of flowering plants in the family Fabaceae. It belongs to the subfamily Faboideae. Its 13–19 species are all endemic to New Caledonia.Morat, P., T. Jaffré, F. Tronchet, J. Munzinger, Y. Pillon, J. M. Veillon, and M. Chalopin (2012). The taxonomic reference base Florical and characteristics of the native vascular flora of New Caledonia. Adansonia 34 (2): 179–221. https://dx.doi.org/10.5252/a2012n2a1 Its closest relatives include Nephrodesmus, also endemic to New Caledonia,Egan, Ashley N., Mohammad Vatanparast, and William Cagle. (2016) Parsing Polyphyletic Pueraria: Delimiting Distinct Evolutionary Lineages through Phylogeny.” Molecular Phylogenetics and Evolution 104: 44–59. doi:10.1016/j.ympev.2016.08.001. Ohwia and Hanslia.Jabbour, F., Gaudeul, M., Lambourdière, J., Ramstein, G., Hassanin, A., Labat, J. N., & Sarthou, C. (2018). Phylogeny, biogeography and character evolution in the tribe Desmodieae (Fabaceae: Papilionoideae), with special emphasis on the New Caledonian endemic genera. Molecular Phylogenetics and Evolution 118:108-121 https://doi.org/10.1016/j.ympev.2017.09.017
Species 13 species are accepted:Arthroclianthus Baill. Plants of the World Online. Retrieved 11 August 2023. Arthroclianthus andersonii Arthroclianthus angustifolius Arthroclianthus balansae Arthroclianthus cuneatus Arthroclianthus deplanchei Arthroclianthus grandifolius Arthroclianthus leratii Arthroclianthus macrobotryosus Arthroclianthus macrophyllus Arthroclianthus maximus Arthroclianthus microbotrys Arthroclianthus obovatus Arthroclianthus sanguineus
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