| Title | North American Species of Euphorbia |
| Abbreviation | N. Amer. Euphorbia |
| Authors | J. B. S. Norton |
| Publication Dates | 10 Jul 1899 |
| TL2 | 6.893 |
| Remarks | Preprinted from Rep. (Annual) Missouri Bot. Gard. 1900: 85-144. 1900 |
The Harvard University Herbaria hold 8 type specimens of taxa described in this publication
Euphorbia alta Norton [Isosyntype] 1899, 24Euphorbia lurida var. pringlei Norton [Type] 1899, 39
Euphorbia robusta var. interioris Norton [Isolectotype] 1899, 49
Euphorbia crenulata var. franciscana Norton [Syntype] 1899, 38
Euphorbia commutata var. erecta Norton [Syntype] 1899, 35
Euphorbia commutata var. erecta Norton [Syntype] 1899, 35
Euphorbia schizoloba var. mollis Norton [Isolectotype] 1899, 43
Euphorbia schizoloba var. mollis Norton [Isotype] 1899, 43