Gillespie, Lynn J., Soreng, Robert J., Paradis, L. Michel, and Bull, Roger D. 2010. "Phylogeny and reticulation in Poinae subtribal complex based on nrITS, ETS, and trnTLF data." In Diversity, Phylogeny, and Evolution in the Monocotyledons. Seberg, O., Peterson, G., Barfod, A., and Davis, J. I., editors. 589–617. Aarhus: Aarhus University Press.