| Pityrogramma calomelanos | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Division: | Polypodiophyta |
| Class: | Polypodiopsida |
| Order: | Polypodiales |
| Family: | Pteridaceae |
| Genus: | Pityrogramma |
| Species: | P. calomelanos |
| Binomial name | |
| Pityrogramma calomelanos (L.) Link | |
Pityrogramma calomelanos, commonly known as the silver fern, is a rhizomatous geophyte or lithophyte native to Mexico and Tropical America. It grows mainly in subtropical regions and has been introduced widely across Asia, Africa, and Pacific islands.
