| Ageratum munaense R.M. King & H. Rob., 1990 |
| Ageratum nelsonii (B.L. Rob.) M.F. Johnson, 1971 |
| Ageratum paleaceum (DC.) Hemsl., 1881 |
| Ageratum pinetorum (L.O. Williams) R.M. King & H. Rob., 1972 |
| Ageratum platylepis (B.L. Rob.) R.M. King & H. Rob., 1972 |
| Ageratum platypodum B.L. Rob., 1913 |
| Ageratum punctatum Jacq., 1798 |
| Ageratum purpureum Sessé & Moc., 1889 |
| Ageratum rhytidophyllum B.L. Rob., 1901 |
| Ageratum rugosum J.M. Coult., 1895 |
| Ageratum sessilifolium S. Schauer, 1847 |
| Ageratum solisii B.L. Turner, 2005 |
| Ageratum sordidum S.F. Blake, 1924 |
| Ageratum stachyofolium B.L. Rob., 1901 |
| Ageratum tehuacanum R.M. King & H. Rob., 1990 |
| Ageratum tomentosum (Benth.) Hemsl., 1881 |
| Ageratum wrightii Torr. & A. Gray, 1846 |
| Agiabampoa Rose ex O. Hoffm. & Prantl, 1894 |
| Agiabampoa congesta Rose ex Hoffman, 1894 |
| Agnorhiza (Jeps.) W.A. Weber, 1999 |