21781312 424732 Euphorbia tannensis Sprengel [80 421609 Euphorbia eremophila A. Cunn. ex Hook.] E.P. Boissier, Icon. Euphorb.: t. 43 (1866) [J.C. Heyland]
 
2917812 424732 Euphorbia tannensis Sprengel W. Cooper, W.T. Cooper, Fruits Austral. Trop. Rainforest: p. 183, fig. 2 (2004) [W.T. Cooper]