L. Magoswana, S. J. . Boatwright, A. R. Magee, and J. C. . Manning, “Othonna koos-bekkeri Van Jaarsv. is a synonym of Othonna cerarioides Magoswana & J.C. Manning (Asteraceae: Othonninae)”., ABC, vol. 51, no. 2, Oct. 2021, doi: 10.38201/btha.abc.v51.i2.