Athyrium medium is a species of fern in the family Athyriaceae. It is found in Tristan da Cunha. Its natural habitat is subantarctic shrubland.
| Athyrium medium | |
|---|---|
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Division: | Polypodiophyta |
| Class: | Polypodiopsida |
| Order: | Polypodiales |
| Suborder: | Aspleniineae |
| Family: | Athyriaceae |
| Genus: | Athyrium |
| Species: | A. medium |
| Binomial name | |
| Athyrium medium (Carmich.) T.Moore | |
