1. Anderberg AA, Baldwin BG, Bayer RG, Breitwieser J, Jeffrey C, Dillon MO, Eldenäs P, Funk V et al. (2007) Compositae. In: Kubitzki K, (ed) Asterales. Kadereit JW, Jeffrey C (vol eds), The families and genera of vascular plants, vol 8. Springer, New York, NY, pp 61–621
2. Bentham G (1873) Notes on the classification, history and geographic distribution of Compositae. J Linn Soc Bot 13:355–577
3. Bonifacino JM (2008) Reinstatement of Ocyroe (Compositae: Astereae). Brittonia 60:205–212
4. Bonifacino JM (2009) Taxonomic revision of the Chiliotrichum group sensu stricto (Compositae: Astereae). Smithson Contrib Bot 92:1–115
5. Bremer K (1993) Intercontinental relationships of African and South American Asteraceae: a cladistic biogeographic analysis. In: Goldblatt P, (ed) Biological relationships between Africa and South America. Yale University Press, New Haven, CT and London, pp 105–135