| 1 | Native | Northern America | North-Central U.S.A. | United States | Illinois | s.w. | Mohlenbrock, R. H. & D. M. Ladd. 1978. Distribution of Illinois vascular plants |
| 1 | Native | Northern America | North-Central U.S.A. | United States | Iowa | | Eilers, L. J. & D. M. Roosa. 1994. The vascular plants of Iowa |
| 1 | Native | Northern America | North-Central U.S.A. | United States | Kansas | | McGregor, R. L. et al. (The Great Plains Flora Association). 1977. Atlas of the Flora of the Great Plains. |
| 1 | Native | Northern America | North-Central U.S.A. | United States | Minnesota | s. | Ownbey, G. B. & T. Morley. 1991. Vascular plants of Minnesota: a checklist and atlas |
| 1 | Native | Northern America | North-Central U.S.A. | United States | Missouri | | Steyermark, J. A. 1977. Flora of Missouri. |
| 1 | Native | Northern America | North-Central U.S.A. | United States | Nebraska | | McGregor, R. L. et al. (The Great Plains Flora Association). 1977. Atlas of the Flora of the Great Plains. |
| 1 | Native | Northern America | North-Central U.S.A. | United States | North Dakota | | McGregor, R. L. et al. (The Great Plains Flora Association). 1977. Atlas of the Flora of the Great Plains. |
| 1 | Native | Northern America | North-Central U.S.A. | United States | Oklahoma | | McGregor, R. L. et al. (The Great Plains Flora Association). 1977. Atlas of the Flora of the Great Plains. |
| 1 | Native | Northern America | North-Central U.S.A. | United States | South Dakota | | McGregor, R. L. et al. (The Great Plains Flora Association). 1977. Atlas of the Flora of the Great Plains. |
| 1 | Native | Northern America | Northwestern U.S.A. | United States | Colorado | | Govaerts, R. et al. 2000. World checklist and bibliography of Euphorbiaceae |
| 1 | Native | Northern America | Northwestern U.S.A. | United States | Idaho | | Hitchcock, C. L. et al. 1955-1969. Vascular plants of the Pacific Northwest. |
| 1 | Native | Northern America | Northwestern U.S.A. | United States | Montana | | Govaerts, R. et al. 2000. World checklist and bibliography of Euphorbiaceae |
| 1 | Native | Northern America | Northwestern U.S.A. | United States | Oregon | | Hitchcock, C. L. et al. 1955-1969. Vascular plants of the Pacific Northwest. |
| 1 | Native | Northern America | Northwestern U.S.A. | United States | Washington | | Hitchcock, C. L. et al. 1955-1969. Vascular plants of the Pacific Northwest. |
| 1 | Native | Northern America | Northwestern U.S.A. | United States | Wyoming | | Govaerts, R. et al. 2000. World checklist and bibliography of Euphorbiaceae |
| 1 | Native | Northern America | South-Central U.S.A. | United States | New Mexico | | Govaerts, R. et al. 2000. World checklist and bibliography of Euphorbiaceae |
| 1 | Native | Northern America | South-Central U.S.A. | United States | Texas | | Correll, D. S. & M. C. Johnston. 1970. Manual of the vascular plants of Texas |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | Alabama | | Govaerts, R. et al. 2000. World checklist and bibliography of Euphorbiaceae |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | Arkansas | | Smith, E. B. 1978. An atlas and annotated list of the vascular plants of Arkansas |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | Louisiana | | Govaerts, R. et al. 2000. World checklist and bibliography of Euphorbiaceae |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | Mississippi | | Govaerts, R. et al. 2000. World checklist and bibliography of Euphorbiaceae |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | Tennessee | | Wofford, B. E. Database of Tennessee vascular plants (on-line resource). |
| 1 | Native | Northern America | Southwestern U.S.A. | United States | Arizona | | Govaerts, R. et al. 2000. World checklist and bibliography of Euphorbiaceae |
| 1 | Native | Northern America | Southwestern U.S.A. | United States | California | | Govaerts, R. et al. 2000. World checklist and bibliography of Euphorbiaceae |
| 1 | Native | Northern America | Southwestern U.S.A. | United States | Nevada | | Govaerts, R. et al. 2000. World checklist and bibliography of Euphorbiaceae |
| 1 | Native | Northern America | Southwestern U.S.A. | United States | Utah | | Welsh, S. L. et al. 1993. A Utah flora. |
| 1 | Native | Southern America | Brazil | Brazil | Rio Grande do Sul | | Govaerts, R. et al. 2000. World checklist and bibliography of Euphorbiaceae |
| 1 | Native | Southern America | Brazil | Brazil | Santa Catarina | | Govaerts, R. et al. 2000. World checklist and bibliography of Euphorbiaceae |
| 1 | Native | Southern America | Southern South America | Uruguay | | | Govaerts, R. et al. 2000. World checklist and bibliography of Euphorbiaceae |