| Name | Hydrocleis modesta Pedersen |
| Authorship | Pedersen |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Hydrocleis Reichenbach |
| Citation | 1961 Bot. Tidsskr. 57: 39 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Hydrocleis modesta Pedersen |
| Identification made in | [no date] (1), 2007 (1) |