| Chamomilla occidentalis (Greene) Rydb., 1916 |
| Chamomilla recutita (L.) Rauschert, 1974 |
| Chamomilla suaveolens (Pursh) Rydb., 1916 |
| Chaptalia Vent., 1802 |
| Chaptalia albicans (Sw.) Vent. ex Steud., 1840 |
| Chaptalia alsophila Greene, 1905 |
| Chaptalia carduacea Greene, 1906 |
| Chaptalia confinis Greene, 1905 |
| Chaptalia crispula Greene, 1906 |
| Chaptalia dentata (L.) Cass., 1823 |
| Chaptalia diversifolia Greene, 1906 |
| Chaptalia ehrenbergii (Sch. Bip.) Hemsl., 1881 |
| Chaptalia erosa Greene, 1906 |
| Chaptalia estribensis G.L. Nesom, 1995 |
| Chaptalia exazurea G.S. Hinton & G.L. Nesom, 2019 |
| Chaptalia fallax Greene, 1906 |
| Chaptalia hidalgoensis L. Cabrera & G.L. Nesom, 2003 |
| Chaptalia hintonii Bullock, 1937 |
| Chaptalia hololeuca Greene, 1906 |
| Chaptalia leiocarpa Urb., 1921 |