| Name | Callitriche hamulata Kützing ex W. D. J. Koch |
| Authorship | Kützing ex W. D. J. Koch |
| Rank | Species |
| Placed in | Callitriche Linnaeus |
| Citation | 1837 Syn. Fl. Germ. Helv. 246 |
| Holdings | 4 Specimens held in the Harvard University Herbaria identified as Callitriche hamulata Kützing ex W. D. J. Koch |
| Identification made in | [no date] (4) |