1. Euphorbia;Brown,1913
2. New species and taxonomic changes in Euphorbia from East and Northeast tropical Africa and a new species from Oman;Carter;Kew Bulletin,1985
3. Tribe Euphorbieae;Carter,2001
4. Euphorbiaceae (Part 2);Carter,1988
5. Keith Coates Palgrave Trees of Southern Africa;Coates Palgrave,2002