protologue: Sp. Pl. 1: 450 (1753)
URL protologue: https://archive.org/stream/mobot31753000802824#page/450/mode/2up
 
422172 Euphorbia heptagona L. G.B. Morandi, Hort. Bot. Pict.: (1748)
 
Euphorbia heptagona L. [Euphorbium heptagonum spinis longissimis in apice frugiferis] G. Edwards, M. Houttuyn, Verz. Uitl. Zelz. Vogelen, vol. 3 : t. 21 (1776)