| Ceanothus cuneatus (Hook.) Nutt., 1838 |
| Ceanothus cuneatus var. cuneatus (Hook.) Nutt., 1838 |
| Ceanothus cyaneus Eastw., 1927 |
| Ceanothus depressus Benth., 1839 |
| Ceanothus divaricatus Nutt., 1838 |
| Ceanothus durangoinus Loes., 1910 |
| Ceanothus fendleri A. Gray, 1849 |
| Ceanothus fendleri var. fendlerii A. Gray, 1849 |
| Ceanothus fendleri var. venosus Trel., 1897 |
| Ceanothus fernandezii Villarreal, A.E. Estrada& Encina, 2019 |
| Ceanothus glandulosus Schltdl., 1841 |
| Ceanothus greggii A. Gray, 1853 |
| Ceanothus greggii var. greggii A. Gray, 1853 |
| Ceanothus greggii var. perplexans (Trel.) Jeps., 1925 |
| Ceanothus herbaceus Raf., 1808 |
| Ceanothus huichagorare Loes., 1910 |
| Ceanothus infestus Kunth, 1825 |
| Ceanothus lanuginosus (M.E. Jones) Rose, 1909 |
| Ceanothus leucodermis Greene, 1895 |
| Ceanothus macrocarpus Cav., 1795 |