See text Grammitis (dwarf polypody) is a genus of ferns in the family Polypodiaceae, subfamily Grammitidoideae, according to the Pteridophyte Phylogeny Group classification of 2016 (PPG I).

The name is derived from Greek, gramma, grammatos meaning "a line or thread" and refers to the arrangement of the sori in some species.

[7] In a treatment of Grammitidaceae in 1990, Barbara S. Parris defined Grammitis broadly, to include about 400 species.

[8] At that time, she stated that "The treatment of Grammitis here as a large and diverse genus reflects our current lack of knowledge concerning relationships within the family".

[3] Grammitis sensu strictissimo (about 25 species) is distinguished by its black, sclerified leaf margins.