| Pleuranthodendron mexicanum (A. Gray) L.O. Williams, 1961 |
| Populus L., 1753 |
| Populus alba L., 1753 |
| Populus angustifolia E. James, 1823 |
| Populus arizonica Sarg., 1919 |
| Populus arizonica var. jonesii Sarg., 1919 |
| Populus brandegeei C.K. Schneid., 1904 |
| Populus brandegeei var. brandegeei C.K. Schneid., 1904 |
| Populus canadensis Moench, 1785 |
| Populus deltoides W. Bartram ex Marschall, 1785 |
| Populus deltoides subsp. deltoides W. Bartram ex Marschall, 1785 |
| Populus deltoides subsp. wislizenii (S. Watson) Eckenw., 1977 |
| Populus dimorpha Brandegee, 1905 |
| Populus fremontii S. Watson, 1875 |
| Populus fremontii subsp. fremontii S. Watson, 1875 |
| Populus fremontii subsp. mesetae Eckenw., 1977 |
| Populus guzmanantlensis A. Vázquez & Cuevas, 1989 |
| Populus luziarum A. Vázquez Muñiz-Castro, 2017 |
| Populus mexicana Wesm. ex DC., 1868 |
| Populus mexicana subsp. mexicana Wesm. ex DC., 1868 |