Template:Barker et al., 2009
- Barker, N.P., Howis, S., Nordenstam, B., Källersjö, M., Eldenäs, P., Griffioen, C. & Linder, H.P. 2009. Nuclear and chloroplast DNA-based phylogenies of Chrysanthemoides Tourn. ex Medik.(Calenduleae; Asteraceae) reveal extensive incongruence and generic paraphyly, but support the recognition of infraspecific taxa in C. monilifera. South African Journal of Botany 75(3): 560–572. DOI: 10.1016/j.sajb.2009.05.006