| Euphorbiaceae | |
Euphorbia serpens var. fissistipula
| Thell. | Bull. Herb. Boissier, sér. 2, 7(9): 755–756 | 1907 |
| Euphorbiaceae | |
Euphorbia serpens var. fissistipula
| Thell. | Bull. Herb. Boissier II, 7: 755 | 1907 |
| Euphorbiaceae | |
Euphorbia serpens [unranked] flexicaulis
| (Scheele) Thell. | Syn. Mitteleur. Fl. 7: 442 | 1917 |
| Euphorbiaceae | |
Euphorbia serpens var. flexicaulis
| (Scheele) Coult. | Contr. U.S. Natl. Herb. 2: 388 | 1894 |
| Euphorbiaceae | |
Euphorbia serpens var. imbricata
| Boiss. | Prodr. 15(2.1): 30 | 1862 |
| Euphorbiaceae | |
Euphorbia serpens var. indica
| Engelm. ex Boiss. | Prodr. 15(2.1): 30 | 1862 |
| Euphorbiaceae | |
Euphorbia serpens var. microphylla
| Müll. Arg. | J. Bot. 12: 231 | 1874 |
| Euphorbiaceae | |
Euphorbia serpens var. montevidensis
| (Boiss.) Cabrera | Man. Fl. Al. Buenos Aires 284 | 1953 |
| Euphorbiaceae | |
Euphorbia serpens var. ovalifolia
| (Engelm. ex Klotzsch & Garcke) Allem | Revista Brasil. Biol. 37: 223 | 1977 |
| Euphorbiaceae | |
Euphorbia serpens [unranked] psilocyanthia
| Thell. | Syn. Mitteleur. Fl. 7: 442 | 1917 |
| Euphorbiaceae | |
Euphorbia serpens var. radicans
| Engelm. ex Boiss. | Prodr. 15(2.1): 30 | 1862 |
| Euphorbiaceae | |
Euphorbia serpens var. serpens
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