fern family - families of ferns and fern allies

class Filicinae, class Filicopsida, Filicinae, Filicopsida - ferns

Dennstaedtia, genus Dennstaedtia - chiefly terrestrial ferns; in some classification systems placed in family Polypodiaceae

genus Pteridium, Pteridium - a genus of ferns belonging to the family Dennstaedtiaceae