
Definitions of the plant groups
Show full list of plant groups
| Plant Group | Family | Family Common name |
| Ferns | Ophioglossaceae | Adder's-tongue ferns |
| Ferns | Osmundaceae | Royal ferns |
| Ferns | Adiantaceae | Maidenhair ferns |
| Ferns | Marsileaceae | Pillworts |
| Ferns | Hymenophyllaceae | Filmy-ferns |
| Ferns | Polypodiaceae | Polypody ferns |
| Ferns | Dennstaedtiaceae | Brackens |
| Ferns | Thelypteridaceae | Marsh ferns |
| Ferns | Aspleniaceae | Spleenworts |
| Ferns | Woodsiaceae | Lady-ferns |
| Ferns | Dryopteridaceae | Buckler-ferns |
| Ferns | Blechnaceae | Hard-ferns |
| Ferns | Azollaceae | Water ferns |