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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Wild, H. 1980. The Compositae of the Flora Zambesiaca Area, 12-Inuleae (continued). Kirkia 12(1): 23–113.
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