Q.  Liu, ?Lemma micromorphology of the Chloridoideae (Poaceae)?, in 4th International Conference: The Comparative Biology of the Monocotyledons: 5th International Symposium: Grass Systematics and Evolution, 2008, p. 85.

Q.  Liu, Peterson, P. M., Columbus, J. T., Zhao, N. - X., Hao, G., and Zhang, D., ?Inforescence diversification in the "finger millet clade" (Chloridoideae, Poaceae): a comparison of molecular phylogeny and developmental morphology?, American Journal of Botany, vol. 94, pp. 1230-1247, 2007.