| Chaenactis parishii A. Gray, 1885 |
| Chaenactis santolinoides Greene, 1882 |
| Chaenactis stevioides Hook. & Arn., 1839 |
| Chaenactis xantiana A. Gray, 1865 |
| Chaenactis xantiana var. integrifolia A. Gray, 1865 |
| Chaenocephalus Griseb., 1861 |
| Chaetopappa DC., 1836 |
| Chaetopappa asteroides Nutt. ex DC., 1836 |
| Chaetopappa bellioides (A. Gray) Shinners, 1946 |
| Chaetopappa ericoides (Torr.) G.L. Nesom, 1988 |
| Chaetopappa keerlioides Shinners, 1946 |
| Chaetopappa parryi A. Gray, 1880 |
| Chaetopappa plomoensis B.L. Turner, 1977 |
| Chaetopappa pulchella Shinners, 1946 |
| Chaetopappinae G.L. Nesom, 2000 |
| Chaetymenia Hook. & Arn., 1838 |
| Chaetymenia peduncularis Hook. & Arn., 1838 |
| Chamomilla Gray, 1821 |
| Chamomilla courrantiana (DC.) C. Koch, 1851 |
| Chamomilla discoidea (DC.) J. Gay ex A. Braun, 1852 |