| Name | Children | Media (from resource) | Traits |
|---|---|---|---|
| Waagenophyllum ramosum | 0 | 0 | 1 |
| Waagenophyllum tachtabulasicum | 0 | 0 | 1 |
| Waagenophyllum virgalense | 0 | 0 | 1 |
| Waldheimia | 2 | 0 | 0 |
| Waldheimia stoliczkai | 0 | 0 | 1 |
| Allardia tridactylites (Kar. & Kir.) Sch. Bip. | 0 | 0 | 1 |
| Wannerophyllum | 2 | 0 | 0 |
| Wannerophyllum cristatum | 0 | 0 | 1 |
| Wannerophyllum tubulosum | 0 | 0 | 1 |
| Winklera | 1 | 0 | 0 |
| Winklera silaifolia (Hook. fil. & Thomson) Korsh. | 0 | 0 | 1 |
| Wjatkella | 1 | 0 | 0 |
| Wjatkella tersa Gorjunova 1975 | 0 | 0 | 1 |
| Woodsiaceae (Lady ferns and brittle ferns) | 0 | 0 | 0 |
| Xanthorrhoeaceae | 1 | 0 | 0 |
