| Ancistrophora A. Gray, 1859 |
| Andrieuxia DC., 1836 |
| Andromachia Bonpl., 1809 |
| Andromachia deppeana Less., 1831 |
| Anisocoma Torr. & A. Gray, 1845 |
| Anisocoma acaulis Torr. & A. Gray, 1845 |
| Anomostephium DC., 1836 |
| Antennaria Gaertn., 1791 |
| Antennaria holmii Greene, 1899 |
| Antennaria linearifolia Wedd., 1856 |
| Antennaria marginata Greene, 1898 |
| Antennaria obtusata Greene, 1908 |
| Antennaria parvifolia Nutt., 1841 |
| Antennaria propinqua Greene, 1899 |
| Antennaria recurva Greene, 1898 |
| Antennaria rosea Greene, 1898 |
| Antennaria sordida Greene, 1899 |
| Antennaria virginica Stebbins, 1935 |
| Anthemideae Cass., 1819 |
| Anthemidinae Dumort., 1827 |