Athyrium angustum
Athyrium angustum is known as the northern lady fern, native to northeastern North America. It was long included in the superspecies Athyrium filix-femina, but is now largely recognized as a distinct species.
| Athyrium angustum | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Class: | Polypodiopsida |
| Order: | Polypodiales |
| Suborder: | Aspleniineae |
| Family: | Athyriaceae |
| Genus: | Athyrium |
| Species: | A. angustum |
| Binomial name | |
| Athyrium angustum | |
Athyrium angustum has a more southern counterpart, Athyrium asplenioides. This species, the southern lady fern, has a broader frond, especially at the base.
References
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