We document 167 of the 245 accepted species in Hydrophyllaceae. The rest are listed, with their authorities and their identifiers, inside their genus. They have no page of their own because we could not find three openly licensed photographs of them, and a page without evidence is not a page we are willing to publish.
| Genus | Documented | Accepted species |
|---|---|---|
| Phacelia | 132 | 202 |
| Nemophila | 10 | 13 |
| Hydrophyllum | 9 | 10 |
| Romanzoffia | 4 | 5 |
| Pholistoma | 3 | 3 |
| Eucrypta | 2 | 2 |
| Hesperochiron | 2 | 5 |
| Draperia | 1 | 1 |
| Ellisia | 1 | 1 |
| Emmenanthe | 1 | 1 |
| Howellanthus | 1 | 1 |
| Tricardia | 1 | 1 |