| Name | Hydroidea P.O.Karis |
| Authorship | |
| Rank | Genus |
| Placed in | Asteraceae |
| Contains | Hydroidea elsiae (Hilliard) P.O.Karis |
| Remarks | [imported from GBIF] |
| Name | Hydroidea P.O.Karis |
| Authorship | |
| Rank | Genus |
| Placed in | Asteraceae |
| Contains | Hydroidea elsiae (Hilliard) P.O.Karis |
| Remarks | [imported from GBIF] |