Bruyns PV, Mapaya RJ, Hedderson TJ (2006). "A new subgeneric classification for Euphorbia (Euphorbiaceae) in southern Africa based on ITS and psbA-trnH sequence data". Taxon. 55 (2): 397–420. doi:10.2307/25065587. JSTOR25065587.
Steinmann VW, van Ee B, Berry PE, Gutiérrez J (2007). "The systematic position of Cubanthus and other shrubby endemic species of Euphorbia (Euphorbiaceae) in Cuba". Anales Jard. Bot. Madrid. 64 (2): 123–133. doi:10.3989/ajbm.2007.v64.i2.167.
Bruyns PV, Mapaya RJ, Hedderson TJ (2006). "A new subgeneric classification for Euphorbia (Euphorbiaceae) in southern Africa based on ITS and psbA-trnH sequence data". Taxon. 55 (2): 397–420. doi:10.2307/25065587. JSTOR25065587.
kew.org
powo.science.kew.org
"Euphorbia L."Plants of the World Online. Board of Trustees of the Royal Botanic Gardens, Kew. 2017. Retrieved 7 July 2020.