| Cnicus velatus S. Watson, 1891 |
| Cnicus wrightii (A. Gray) A. Gray, 1874 |
| Coleosanthus Cass., 1817 |
| Coleosanthus amplexicaulis (B.L. Rob.) Ortega, 1929 |
| Coleosanthus brachiatus (A. Gray) S.F. Blake, 1926 |
| Coleosanthus brandegeei (B.L. Rob.) S.F. Blake, 1926 |
| Coleosanthus californicus (Torr. & A. Gray) Kuntze, 1891 |
| Coleosanthus cavanillesii Cass., 1818 |
| Coleosanthus cedrosensis (Greene) Greene, 1893 |
| Coleosanthus corymbosus (DC.) Kuntze, 1891 |
| Coleosanthus coulteri (A. Gray) Kuntze, 1891 |
| Coleosanthus cuspidatus (A. Gray) Greene, 1893 |
| Coleosanthus densus Greene, 1900 |
| Coleosanthus diffusus (Vahl) Kuntze, 1891 |
| Coleosanthus floribundus (A. Gray) Kuntze, 1891 |
| Coleosanthus frutescens (A. Gray) Kuntze, 1891 |
| Coleosanthus galeottii (A. Gray) Kuntze, 1891 |
| Coleosanthus glomeratus (Fernald) S.F. Blake, 1926 |
| Coleosanthus glutinosus (A. Gray) S.F. Blake, 1926 |
| Coleosanthus hastatus (Benth.) Kuntze, 1891 |