| Nemophila pedunculata Douglas ex Benth., 1835 |
| Nemophila spatulata Coville, 1893 |
| Phacelia Juss., 1789 |
| Phacelia acaulis (M. Martens & Galeotti) Brand, 1913 |
| Phacelia affinis A. Gray, 1886 |
| Phacelia alba Rydb., 1901 |
| Phacelia altotonga B.L. Turner, 1992 |
| Phacelia bombycina Wooton & Standl., 1913 |
| Phacelia brachyloba A. Gray, 1875 |
| Phacelia carmenensis B.L. Turner, 1992 |
| Phacelia cedrosensis Rose, 1890 |
| Phacelia cicutaria Greene, 1902 |
| Phacelia ciliata Benth., 1835 |
| Phacelia ciliata var. mexicana Brand, 1913 |
| Phacelia coerulea Greene, 1881 |
| Phacelia congesta Hook., 1835 |
| Phacelia corrugata A. Nelson, 1902 |
| Phacelia coulteri Greenm., 1905 |
| Phacelia crenulata Torr. ex S. Watson, 1871 |
| Phacelia cryptantha Greene, 1902 |