| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Hydraea
Taxonomy
Hydraea was named by Dragastan et al. (1997). It is not extant.
It was assigned to Pseudoudoteaceae by Dragastan et al. (1999).
It was assigned to Pseudoudoteaceae by Dragastan et al. (1999).