CCDB is a community resource. If you are aware of any missing data or if any of the counts are erroneous, please submit new counts, or report erroneous counts.
CCDB → Angiosperms → Alismataceae → Hydrocleys
| Taxon name | Status | Median (n) |
| Hydrocleys modesta Pedersen | Accepted | 7 |
| Hydrocleys nymphoides (Humb. & Bonpl.) Buchenau | Accepted | 8 |
| Hydrocleys nymphoides | Synonym of Hydrocleys nymphoides (Humb. & Bonpl.) Buchenau | 8 |
| Hydrocleys nymphoides None | Synonym of Hydrocleys nymphoides (Humb. & Bonpl.) Buchenau | 8 |