Nymphaeales
Family: Cabombaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Brasenia holsatica | (Web.) Weberb. | Late Pleistocene | Europe | Extinct | Access |
Family: Hydatellaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Hydatella leptogyne | Diels, 1904 | Few-flowered hydatella | (rediscovered) | Drummond Nature Reserve, Western Australia, Australia | Rediscovered | Access |
| Trithuria australis | (Diels) D.D.Sokoloff | (rediscovered) | Western Australia, Australia | Rediscovered | Access |
Family: Nymphaeaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
|
Nymphaea capensis zanzibariensis
|
(Casp.) Verdc. | ? | Zanzibar | Extinct in the wild | Access | |
| Nymphaea thermarum | Eb.Fisch. | Pygmy Rwandan water lily | 1987? | Mashyuza, Rwanda (southwest) | Extinct in the wild | Access |