| Name | Heteranthera catharinensis C. N. Horn |
| Authorship | C. N. Horn |
| Rank | Species |
| Placed in | Heteranthera |
| Citation | 2017 PhytoKeys 82: 37 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Heteranthera catharinensis C. N. Horn |
| Identification made in | 2021 (1) |