Button fern (wanda kuma aka sani da dwarf fern ko Pellaea rotundifolia) wani nau'in fern ne wanda ke na dangin Pteridaceae. Karamin fern ne mai zagaye, leaflets kamar maɓalli, saboda haka sunan "button fern." Shahararriyar shuka ce ta ado kuma galibi ana amfani da ita a cikin terrariums ko azaman tsire-tsire na cikin gida saboda ƙaƙƙarfan girmansa da ƙarancin bukatun kulawa.
