Marsileales
| Kingdom: | Plantae |
| Phylum: | Pteridiphyta |
| Class: | Polypodiopsida |
| Order: | Marsileales |
- Family
- Genus
- species -- Common Name
- Marsilea
- macropoda -- Bigfoot Water-clover
- mexicana -- Mexican Water-clover
- quadrifolia -- European Water-clover
- tenufolia -- Narrow-leaved Water-clover
- uncinata -- Hooked Water-clover
- vestita -- Hairy Water-clover
- Pilularia
- americana -- American Pillwort
- novae-zelandiae -- New Zealand Pillwort
- globulifera -- Pillwort
- Regnellidium
- diphyllum -- Two-leaf Water Fern
Marsileaceae
