Accepted By:
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Gibbs Russell, G. E., W. G. M. Welman, E. Retief, K. L. Immelman, G. Germishuizen, B. J. Pienaar, M. Van Wyk & A. Nicholas. 1987. List of species of southern African plants. Mem. Bot. Surv. South Africa 2(1–2): 1–152(pt. 1), 1–270(pt. 2).
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Jeffrey, C. 1967. Notes on Compositae: II. The Mutisieae in East Tropical Africa. Kew Bull. 21(2): 177–223.
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Klatt, F. W. 1890. Compositae Hildebrandtianae in Madagascaria centrali collectae. Bot. Jahrb. Syst. 12(Beibl. 27): 21–28.
 
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