De subfamilie Blechnoideae Gasper kent 18 geslachten.
| Austroblechnum Gasper & V.A.O.Dittrich | Cranfillia Gasper & V.A.O.Dittrich | Lomariocycas (J.Sm.) Gasper & A.R.Sm. |
| Blechnidium T.Moore | Diploblechnum Hayata | Neoblechnum Gasper & V.A.O.Dittrich |
| Blechnopsis C.Presl | Doodia R.Br. | Oceaniopteris Gasper & Salino |
| Blechnum L. | Icarus Gasper & Salino | Parablechnum C.Presl |
| Brainea J.Sm. | Lomaria Willd. | Sadleria Kaulf. |
| Cleistoblechnum Gasper & Salino | Lomaridium C.Presl | Struthiopteris Scop. |
