Pityrogramma calomelanos | |
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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 [1] |
Pityrogramma calomelanos [2] [3] , commonly known as the silver fern [4] , is a rhizomatous geophyte or lithophyte native to Mexico and Tropical America [5] [6] [7] . It grows mainly in subtropical regions and has been introduced widely across Asia, Africa, and Pacific islands [8] .