| 1 | Native | Northern America | North-Central U.S.A. | United States | Oklahoma | | McGregor, R. L. et al. (The Great Plains Flora Association). 1986. Flora of the Great Plains. |
| 1 | Native | Northern America | Northern Mexico | Mexico | Chihuahua | | Woodson, R. E., Jr. 1954. The North American species of Asclepias L. Ann. Missouri Bot. Gard. 41:156-158. |
| 1 | Native | Northern America | Northern Mexico | Mexico | Coahuila de Zaragoza | | Woodson, R. E., Jr. 1954. The North American species of Asclepias L. Ann. Missouri Bot. Gard. 41:156-158. |
| 1 | Native | Northern America | Northern Mexico | Mexico | Durango | | Woodson, R. E., Jr. 1954. The North American species of Asclepias L. Ann. Missouri Bot. Gard. 41:156-158. |
| 1 | Native | Northern America | Northern Mexico | Mexico | Nuevo León | | Woodson, R. E., Jr. 1954. The North American species of Asclepias L. Ann. Missouri Bot. Gard. 41:156-158. |
| 1 | Native | Northern America | Northern Mexico | Mexico | San Luis Potosí | | Woodson, R. E., Jr. 1954. The North American species of Asclepias L. Ann. Missouri Bot. Gard. 41:156-158. |
| 1 | Native | Northern America | Northern Mexico | Mexico | Sonora | | Woodson, R. E., Jr. 1954. The North American species of Asclepias L. Ann. Missouri Bot. Gard. 41:156-158. |
| 1 | Native | Northern America | Northern Mexico | Mexico | Tamaulipas | | Woodson, R. E., Jr. 1954. The North American species of Asclepias L. Ann. Missouri Bot. Gard. 41:156-158. |
| 1 | Native | Northern America | South-Central U.S.A. | United States | New Mexico | | McGregor, R. L. et al. (The Great Plains Flora Association). 1986. Flora of the Great Plains. |
| 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 | Southern Mexico | Mexico | Campeche | | Davidse, G. et al., eds. 1994. Flora mesoamericana. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Chiapas | | Davidse, G. et al., eds. 1994. Flora mesoamericana. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Guanajuato | | Woodson, R. E., Jr. 1954. The North American species of Asclepias L. Ann. Missouri Bot. Gard. 41:156-158. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Hidalgo | | Woodson, R. E., Jr. 1954. The North American species of Asclepias L. Ann. Missouri Bot. Gard. 41:156-158. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Jalisco | | Vázquez-García et al. 2004-. Flora del norte de Jalisco y etnobotánica Huichola. Serie Fronteras de Biodivesidad |
| 1 | Native | Northern America | Southern Mexico | Mexico | Morelos | | Woodson, R. E., Jr. 1954. The North American species of Asclepias L. Ann. Missouri Bot. Gard. 41:156-158. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Oaxaca | | Woodson, R. E., Jr. 1954. The North American species of Asclepias L. Ann. Missouri Bot. Gard. 41:156-158. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Puebla | | Woodson, R. E., Jr. 1954. The North American species of Asclepias L. Ann. Missouri Bot. Gard. 41:156-158. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Tabasco | | Davidse, G. et al., eds. 1994. Flora mesoamericana. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Veracruz de Ignacio de la Llave | | Woodson, R. E., Jr. 1954. The North American species of Asclepias L. Ann. Missouri Bot. Gard. 41:156-158. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Yucatán | | Davidse, G. et al., eds. 1994. Flora mesoamericana. |
| 1 | Native | Southern America | Central America | Costa Rica | | | Davidse, G. et al., eds. 1994. Flora mesoamericana. |
| 1 | Native | Southern America | Central America | El Salvador | | | Davidse, G. et al., eds. 1994. Flora mesoamericana. |
| 1 | Native | Southern America | Central America | Guatemala | | | Davidse, G. et al., eds. 1994. Flora mesoamericana. |
| 1 | Native | Southern America | Central America | Honduras | | | Davidse, G. et al., eds. 1994. Flora mesoamericana. |
| 1 | Native | Southern America | Central America | Nicaragua | | | Davidse, G. et al., eds. 1994. Flora mesoamericana. |