Wurdack, K. J.; Hoffmann, P.; Chase, M. W. (2005), "Molecular phylogenetic analysis of uniovulate Euphorbiaceae (Euphorbiaceae sensu stricto) using plastid RBCL and TRNL-F DNA sequences", American Journal of Botany, 92 (8): 1397–1420, doi:10.3732/ajb.92.8.1397, PMID21646159
Wurdack, K. J.; Hoffmann, P.; Chase, M. W. (2005), "Molecular phylogenetic analysis of uniovulate Euphorbiaceae (Euphorbiaceae sensu stricto) using plastid RBCL and TRNL-F DNA sequences", American Journal of Botany, 92 (8): 1397–1420, doi:10.3732/ajb.92.8.1397, PMID21646159