| Ageratina triniona (McVaugh) R.M. King & H. Rob., 1972 |
| Ageratina venulosa (A. Gray) R.M. King & H. Rob., 1970 |
| Ageratina vernalis (Vatke & Kurtz) R.M. King & H. Rob., 1970 |
| Ageratina vernicosa (Sch. Bip. ex Greenm.) R.M. King & H. Rob., 1970 |
| Ageratina viburnoides (DC.) R.M. King & H. Rob., 1970 |
| Ageratina viejoana B.L. Turner, 1993 |
| Ageratina villarrealii B.L. Turner, 2010 |
| Ageratina viscosissima (Rolfe) R.M. King & H. Rob., 1981 |
| Ageratina warnockii B.L. Turner, 1987 |
| Ageratina wrightii (A. Gray) R.M. King & H. Rob., 1970 |
| Ageratina xanthochlora (B.L. Rob.) R.M. King & H. Rob., 1970 |
| Ageratina yaharana B.L. Turner, 2008 |
| Ageratina yecorana B.L. Turner, 1987 |
| Ageratina zapalinama B.L. Turner, 1991 |
| Ageratina zaragozana B.L. Turner, 2014 |
| Ageratina zunilana (Standl. & Steyerm.) R.M. King & H. Rob., 1970 |
| Ageratinae Less., 1832 |
| Ageratum L., 1753 |
| Ageratum adscendens Sch. Bip. ex Hemsl., 1881 |
| Ageratum albidum (DC.) Hemsl., 1881 |