Kiew, R. 2007. Flowering Plant Families of the World (2nd edition). V. H. Heywood, R. K. Brummitt, A. Culham & O. Sedberg. . Edinburgh Journal of Botany. 64, 3 (Nov. 2007), 435–437. DOI:https://doi.org/10.1017/S0960428607064335.