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Swanepoel, W., Cauwer, V.D. and Wyk, A.E.V. 2021.

A new species of Osteospermum subgen. Tripteris (Asteraceae: Calenduleae) from the Namib Desert, Namibia

. Phytotaxa. 487, 3 (Feb. 2021), 185–194. DOI:https://doi.org/10.11646/phytotaxa.487.3.1.