# List of ferns and fern allies of Great Britain and Ireland

This page's list covers the ferns and allies (Lycopodiopsida, Equisetopsida and Pteridopsida) found in Great Britain and Ireland. For the background to this list see parent article List of the vascular plants of Britain and Ireland.

## Class Lycopodiopsida
### Order Lycopodiales
#### Family Lycopodiaceae (clubmosses)

| English name | Scientific name | Status |
| Alpine clubmoss | Diphasiastrum alpinum | Native |
| Issler's clubmoss | Diphasiastrum × issleri | Native |
| Fir clubmoss | Huperzia selago | Native |
| Stag's-horn clubmoss | Lycopodium clavatum | Native |
| Hare's-foot clubmoss | Lycopodium lagopus | Native |
| Marsh clubmoss | Lycopodiella inundata | Native |
| Interrupted clubmoss | Spinulum annotinum | Native |

### Order Selaginellales
#### Family Selaginellaceae (spikemosses)

| English name | Scientific name | Status |
| Krauss's clubmoss | Selaginella kraussiana | Introduced |
| Lesser clubmoss | Selaginella selaginoides | Native |

### Order Isoetales
#### Family Isoetaceae (quillworts)

| English name | Scientific name | Status |
| Spring quillwort | Isoetes echinospora | Native |
| Land quillwort | Isoetes histrix | Native |
| Quillwort | Isoetes lacustris | Native |

## Class Polypodiopsida (ferns)
### Order Equisetales
#### Family Equisetaceae (horsetails)

| English name | Scientific name | Status |
| Field horsetail | Equisetum arvense | Native |
| Water horsetail | Equisetum fluviatile | Native |
| Rough horsetail | Equisetum hyemale | Native |
| Marsh horsetail | Equisetum palustre | Native |
| Shady horsetail | Equisetum pratense | Native |
| Branched horsetail | Equisetum ramosissimum | Introduced |
| Wood horsetail | Equisetum sylvaticum | Native |
| Great horsetail | Equisetum telmateia | Native |
| Variegated horsetail | Equisetum variegatum | Native |

### Order Ophioglossales
#### Family Ophioglossaceae (adder's-tongues)

| English name | Scientific name | Status |
| Moonwort | Botrychium lunaria | Native |
| Small adder's-tongue | Ophioglossum azoricum | Native |
| Least adder's-tongue | Ophioglossum lusitanicum | Native |
| Southern adder's-tongue | Ophioglossum vulgatum | Native |

### Order Osmundales
#### Family Osmundaceae (royal ferns)

| English name | Scientific name | Status |
| Royal fern | Osmunda regalis | Native |

### Order Polypodiales (polypod ferns, cathetogyrates)
#### Family Pteridaceae (maidenhair fern family)

| English name | Scientific name | Status |
| Maidenhair fern | Adiantum capillus-veneris | Native |
| Parsley fern | Cryptogramma crispa | Native |
| Ribbon fern | Pteris cretica | Introduced |

#### Family Hymenophyllaceae (filmy ferns, bristle ferns)

| English name | Scientific name | Status |
| Tunbridge filmy-fern | Hymenophyllum tunbrigense | Native |
| Wilson's filmy-fern | Hymenophyllum wilsonii | Native |
| Killarney fern | Vandenboschia speciosa | Native |

#### Family Polypodiaceae

| English name | Scientific name | Status |
| Southern polypody | Polypodium cambricum | Native |
| Intermediate polypody | Polypodium interjectum | Native |
| Polypody | Polypodium vulgare | Native |
| Kangaroo fern | Zealandia pustulata | Introduced |

#### Family Dennstaedtiaceae (bracken family)

| English name | Scientific name | Status |
| Bracken | Pteridium aquilinum | Native |

#### Family Thelypteridaceae (marsh ferns)

| English name | Scientific name | Status |
| Beech fern | Phegopteris connectilis | Native |
| Lemon-scented fern | Thelypteris limbosperma | Native |
| Marsh fern | Thelypteris palustris | Native |

#### Family Aspleniaceae (spleenworts)

| English name | Scientific name | Status |
| Black spleenwort | Asplenium adiantum-nigrum | Native |
| Rustyback | Asplenium ceterach | Native |
| Sea spleenwort | Asplenium marinum | Native |
| Lanceolate spleenwort | Asplenium obovatum | Native |
| Irish spleenwort | Asplenium onopteris | Native |
| Wall-rue | Asplenium ruta-muraria | Native |
| Hart's-tongue | Asplenium scolopendrium | Native |
| Forked spleenwort | Asplenium septentrionale | Native |
| Maidenhair spleenwort | Asplenium trichomanes | Native |
| Green spleenwort | Asplenium viride | Native |

#### Family Woodsiaceae (cliff ferns)

| English name | Scientific name | Status |
| Alpine lady-fern | Athyrium distentifolium | Native |
| Lady-fern | Athyrium filix-femina | Native |
| Newman's lady-fern | Athyrium flexile | Native |
| Dickie's bladder-fern | Cystopteris dickieana | Native |
| Brittle bladder-fern | Cystopteris fragilis | Native |
| Mountain bladder-fern | Cystopteris montana | Native |
| Oak fern | Gymnocarpium dryopteris | Native |
| Limestone fern | Gymnocarpium robertianum | Native |
| Ostrich fern | Matteuccia struthiopteris | Introduced |
| Sensitive fern | Onoclea sensibilis | Introduced |
| Alpine woodsia | Woodsia alpina | Native |
| Oblong woodsia | Woodsia ilvensis | Native |

#### Family Dryopteridaceae (wood ferns)

| English name | Scientific name | Status |
| House holly-fern | Cyrtomium falcatum | Introduced |
| Hay-scented buckler-fern | Dryopteris aemula | Native |
| Scaly male-fern | Dryopteris affinis | Native |
| Narrow buckler-fern | Dryopteris carthusiana | Native |
| Crested buckler-fern | Dryopteris cristata | Native |
| Broad buckler-fern | Dryopteris dilatata | Native |
| Northern buckler-fern | Dryopteris expansa | Native |
| Male-fern | Dryopteris filix-mas | Native |
| Rigid buckler-fern | Dryopteris mindshelkensis | Native |
| Mountain male-fern | Dryopteris oreades | Native |
| Scaly buckler-fern | Dryopteris remota | Extinct |
| Hard shield fern | Polystichum aculeatum | Native |
| Holly fern | Polystichum lonchitis | Native |
| Soft shield fern | Polystichum setiferum | Native |

### Order Salviniales
#### Family Marsileaceae (pepperworts)

| English name | Scientific name | Status |
| Pillwort | Pilularia globulifera | Native |

#### Family Salviniaceae

| English name | Scientific name | Status |
| Water fern | Azolla filiculoides | Introduced |

### Order Cyatheales (tree ferns etc.)
#### Family Dicksoniaceae

| English name | Scientific name | Status |
| Australian tree-fern | Dicksonia antarctica | Introduced |

#### Family Blechnaceae

| English name | Scientific name | Status |
| Chilean hard-fern | Parablechnum cordatum | Introduced |
| Hard-fern | Struthiopteris spicant | Native |