This is an alphabetical list of the Euphorbia species and notable infraspecific taxa.
The list includes the former (and never generally accepted) genus Chamaesyce, as well as the related genera Elaeophorbia, Endadenium, Monadenium, Synadenium and Pedilanthus which according to recent DNA sequence-based phylogenetic studies are all nested within Euphorbia[2]
^Steinmann & Porter (2002), Steinmann (2003), Bruyns et al. (2006)
References
Bruyns, Peter V. & al. (2006): A new subgeneric classification for Euphorbia (Euphorbiaceae) in southern Africa based on ITS and psbA-trnH sequence data. Taxon55(2): 397–420. HTML abstract
Govaerts, R. & al. (2010). World Checklist of Malpighiales. The Board of Trustees of the Royal Botanic Gardens.Euphorbia L., Sp. Pl.: 450 (1753)
Steinmann, V.W. (2003): The submersion of Pedilanthus into Euphorbia (Euphorbiaceae). Acta Botanica Mexicana65: 45-50. PDF fulltext [English with Spanish abstract]
Steinmann, V.W. & Porter, J.M. (2002): Phylogenetic relationships in Euphorbieae (Euphorbiaceae) based on ITS and ndhF sequence data. Annals of the Missouri Botanical Garden89(4): 453–490. doi:10.2307/3298591 (HTML abstract, first page image)